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Problem solving at a UK cement plant

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Problem solving at a UK cement plant

When a cement plant in the UK experienced operational problems with the drag chain system supplying biomass-derived fuel to its kiln, UK based John King Chains Ltd (John King) was able to help.

At the UK cement plant, the mechanical handling equipment that was experiencing operational problems comprised of a drag chain system used for the transfer of a biomass-derived fuel into the kiln, in which two strands of a forged fork link chain were made common with a steel flight. The drag chain system pulled the material a total of 80m along a horizontal section and then up an inclined section.
Since the commissioning of the plant in the recent past (within four years), the plant operator had experienced
operational issues with the drag chain system.

Plant visit

[styled_image image=”https://www.johnkingchains.com/wp-content/uploads/news001-problemcement-foto01.jpg” w=”200″ h=”0″ link=”” lightbox=”yes” alt=”The rising section of the old drag chain system installed at the UK cement plant” rel=”” align=”right” caption=”The rising section of the old drag chain system installed at the UK cement plant”]

A meeting with representatives of the cement plant operator was arranged to discuss the experiences of the existing poor chain system, establish the symptoms and generate initial theories and hypotheses. A site visit was then arranged to investigate the current system, physically examine drag chain components, gather information, identify the cause(s) of the operational problems and formulate solutions.

The problem

The chain system consisted of a doublestrand conveyor belt system with a drag bar attached between the two. The chain iself comprised of two strands of a forged link, a headed pin with collar and role pin retainer. Two strands had a rectangular welded attachment to which a flight bar was bolted rigidly against the attachment. The flight bars were spaced every third link, with two plain links in between.
Analysis by John King established that the forged links were from a low alloy case-hardening steel and that the pin was from a case-hardened mild steel. The attachments and scrapers were made from standard steel. The fixing bolts were high tensile with all-metal locking nuts.

The main problems that the cement plant operator described were:

  • Poor service life, which caused two chains to wear out within 18 months,
  • Intermittent component failure causing damage, downtime and loss of equipment availability,
  • Chains extending up to 1.4m in length,
  • Slat deformation and resultant damage,
  • Bolt failure and resultant damage.

The root of the problem

Based on the analysis carried out by John King and its past applicational experience, two principal problems were identified:

  • A combination of corrosion and abrasion was causing degradation of the case-hardened surface of the pin and resultant accelerated wear of the relatively soft core material.
  • The extension on chain pitch resulting from accelerated pin wear was found to be unequal between the two strands, causing a mismatch.
  • Considering that the two strands were made common with a fixed attachment, the resulting mismatch between the strands created a sheer condition causing slat twisting and bolt failure

[styled_image image=”https://www.johnkingchains.com/wp-content/uploads/news001-problemcement-foto02.jpg” w=”216″ h=”0″ link=”” lightbox=”no” alt=”Cutlery – A strange but not uncommon component of the biomass-derived fuel that the cement plant operator has to handle” rel=”” align=”right” caption=”Cutlery – A strange but not uncommon component of the biomass-derived fuel that the cement plant operator has to handle”]

Examination of the biomass derived fuel and information provided by the cement plant operator established that it was a mixture of shredded domestic waste primarily plastics and paper products. It was clear that the material was in the process of decomposition and was therefore corrosive. This was further aggrevated by the deteriorated condition of the inside of the casing of the conveyor. The material also contained contaminants such as glass particles, silica and metals, which caused abrasion of the chain components. It is known from past experience that where a combination of corrosion and abrasion exists, accelerated component wear is often experienced.

Upon further investigation, a representative of the cement plant operator said that the plant was having an issue with the quality, consistency and preparation
of its biomass-derived fuel. It was noted that similar systems in Germany had better success and that lessons may be learnt from these examples.

Data collection methods

The initial data collection methods involved using verniers and micrometers along with photographic proof on- and off-site.

A total of 10 pins were removed from the chain (five from each strand) and were subjected to dimensional analysis. Checks were also carried out on the pitch holes of the forged links. It was established that there was a limited degree of wear in this element of the chain assembly so attention was directed to the
chain pins.

[styled_image image=”https://www.johnkingchains.com/wp-content/uploads/news001-problemcement-foto03.jpg” w=”605″ h=”0″ link=”” lightbox=”no” alt=”Three images showing use of a micrometer in assessing pins from the old drag chain system” rel=”” align=”left” caption=”Three images showing use of a micrometer in assessing pins from the old drag chain system”]

The 10 pins were taken for dimensional analysis to establish the extent of the wear. Dimensional checks were taken and at various points using verniers and micrometers. The results are shown in Table 1 based on the two individual strands of chain. There was a total mismatch of 139.32mm between the
two sides.

20/06/2024
Item CodeItem NameStock QuantityStock Unit
HP110/1524/PBS 4116 PART 4 HOLLOW PIN PLAIN CHAIN307.000Feet
HP27/0508/1.52"6000LB HOLLOW PIN CHAIN WITH 1.5 ROLLER1890.000Feet
HP27/1016/P/9.5BS 4116 PART 4 HOLLOW PIN CHAIN (9.5HP)190.000Feet
HP27/1524/PBS 4116 PART 4 HOLLOW PIN CHAIN270.000Feet
SP135/1016/P4.0 P SOLID PIN CHAIN410.000Feet
SP135/1524/P6.0 P SOLID PIN PLAIN CHAIN10.000Feet
SP43/0762/DLSP43 3" PITCH DEEP LINK CHAIN540.000Feet
SP43/0762/P3 INCH PITCH SOLID PIN PLAIN CHAIN EACH 10FT LENGTH TO BE SU250.000Feet
SP43/0762/SSSP43 3" PITCH SOLID PIN CHAIN STAINLESS STEEL210.000Feet
SP43/1016/DL4116 4.0 P DEEP LINK CHAIN320.000Feet
SP43/1016/DL/NL4117 4.0 P DEEP LINK CHAIN NO LOGO980.000Feet
SP43/1016/P4118 4.0 PITCH PLAIN CHAIN ONLY323.333Feet
SP75/1016/DLBS 4116 4 INCH PITCH SOLID PIN DEEP LINK CHAIN200.000Feet
HP110/1524/PBS 4116 PART 4 HOLLOW PIN PLAIN CHAIN317.000Feet
HP160/B/1524/27EXTX16/D9832HP160 6" PITCH OVEN CHAIN WITH EXTENDED PIN EVERY 16TH PITCH656.000Feet
HP20/0508/SS2" PITCH 4500LB STAINLESS STEEL HOLLOW PIN CHAIN70.000Feet
HP27/0508/1.52"6000LB HOLLOW PIN CHAIN WITH 1.5 ROLLER199.000Feet
HP27/0508/PBS 4116 PART 4 HOLLOW PIN PLAIN CHAIN880.000Feet
HP27/0762/PBS 4116 PART 4 HOLLOW PIN PLAIN CHAIN250.000Feet
HP27/0762/SS3 INCH BS 4116 PART 4 HOLLOW PIN CHAIN STAINLESS STEEL 3041550.000Feet
HP27/1016/PBS 4116 PART 4 HOLLOW PIN CHAIN40.000Feet
HP27/1524/PBS 4116 PART 4 HOLLOW PIN CHAIN3410.000Feet
HP55/0762/PBS 4116 PART 4 HOLLOW PIN PLAIN CHAIN29.000Feet
HP55/1016/PBS 4116 PART 4 HOLLOW PIN PLAIN CHAIN1438.000Feet
HP160/B/1524/27EXTX16/D9832HP160 6" PITCH OVEN CHAIN WITH EXTENDED PIN EVERY 16TH PITCH328.000Feet
HP160/B/1524/27EXTX2/D9832HP160 6" PITCH OVEN CHAIN WITH EXTENDED PIN EVERY 2ND PITCH26.000Feet
SP135/1016/A2X24.0 P CHAIN WITH A2 ATTACHMENT EVERY 2ND120.000Feet
SP135/1016/P4.0 P SOLID PIN CHAIN21.673Feet
SP400/1524/A2X16.0 P SOLID PIN CHAIN WITH A2 ATTACHMENT EVERY PITCH227.500Feet
SP400/1524/A2X1/D78416" PITCH BRITISH STANARD SAMSON FEEDER CHAIN WITH A235.000Feet
SP43/0762/K3X13" 7500iB WITH INTEGRAL K3 ATTACHMENT EVERY LINK ONE SIDE190.000Feet
SP43/0762/SSSP43 3" PITCH SOLID PIN CHAIN STAINLESS STEEL120.000Feet
SP43/1016/A3X14" PITCH 7,500Ib UTS SOLID PIN CONVEYOR CHAIN WITH 31.75 DIA1099.666Feet
SP43/1016/A3X1/D57944" PITCH 7,500Ib UTS SOLID PIN CONVEYOR CHAIN AS DRG D/579445.330Feet
SP43/1016/P4118 4.0 PITCH PLAIN CHAIN ONLY16.667Feet
SP43/1016/SSBS 4116 4.0 P PLAIN CHAIN ONLY STAINLESS STEEL ANSI 30410.000Feet
SP43/1524/PBS 4116 6.0 P SOLID PIN PLAIN CHAIN210.000Feet
SP75/1016/DLBS 4116 4 INCH PITCH SOLID PIN DEEP LINK CHAIN150.000Feet
SP75/1016/PBS 4116 4.0 P SOLID PIN PLAIN CHAIN390.000Feet
SP75/1524/PBS 4116 6.0 P SOLID PIN PLAIN CHAIN90.000Feet
JKB111/K2X3JKB111 4.75" PITCH STEEL BUSH CHAIN C/W K2 EVERY 3RD ON O/L289.500Feet
JKB275/A1X6/96STEEL BUSH CHAIN WITH A1 ATTACHMENT EVERY 6TH. 96 LINK LENGT20.000Assembly
JKB37291/SS/RF10X4CARRIER CHAIN511.000Feet
JKB856/K24X2STEEL BUSH ELEVATOR CHAIN WITH K24 ATTACHMENT EVERY 2ND42.000Feet
JKR1223/M14X1/GLCANE CARRIER CHAIN170.000Feet
JKR1706/M14STEEL ROLLER CONVEYOR CHAIN JKR1706 12 " PITCH WITH M14 (1")84.000Feet
JKR2184/C/R3/C/AS2+2CX4INTERCARRIER/BAGASSE CHAIN1850.000Feet
JKR2198/A/R2.75/C/K2X1JKR2198 6" PITCH ROLLER CANE CARRIER CHAIN862.500Feet
JKR2436/C/T3x457ROLLER CONVEYOR CHAIN250.000Feet
JKR3945/K23X34 INCH PITCH S3945 CHAIN WITH K23 ATTACHMENTS EVERY 3RD PITC64.000Feet
JKR81X2.609'' ROLLER CONVEYOR CHAIN10.000Feet
JKR81XH2.609'' HEAVY DUTY ROLLER CONVEYOR CHAIN790.000Feet
SS102B/H/K2X44.0 P STEEL BUSH CHAIN HEAVY VERSION WITH K2 ATT EVERY 4TH160.000Feet
SS102B/K2X14.0 P STEEL BUSH CHAIN K2 ATTACHMENT EVERY PITCH714.997Feet
SS102B/K2X24.0 P STEEL BUSH CHAIN WITH K2 ATTACHMENT EVERY 2ND332.000Feet
SS102B/K2X34.0 P STEEL BUSH CHAIN WITH K2 ATTACHMENT EVERY 3RD732.137Feet
SS102B/K2X4/SSSTAINLESS STEEL 4.0 P STEEL BUSH CHAIN WITH K2 ATTACHMENT256.000Feet
SS102B/K2X54.0 P STEEL BUSH CHAIN WITH K2 ATTACHMENT EVERY 5TH432.000Feet
SS102B/PSS102B 4" PITCH STEEL BUSH PLAIN CHAIN241.337Feet
JKR2358/M14/CZX4/RHBAGASSE CONVEYOR CHAIN586.750Feet
JKR2358/M14X1/GZX4/LHBAGASSE CONVEYOR CHAIN586.750Feet
JKB8232/A/C/A1X270MM PITCH STEEL BUSH CHAIN WITH A1 ATTACHMENT EVERY OUTER40.000Metre
M112/A/100DIN 8167 STEEL BUSH CHAIN491.000Metre
M112/A/125M112 BUSH CHAIN 125 PITCH588.375Metre
M112/A/125/HD/T2X285M112 125MM STEEL BUSH CHAIN HEAVY DUTY 285 T FLIGHT127.500Metre
M112/A/125/T2X270/D4979125MM PITCH M112 STEEL BUSH CHAIN 270MM FLIGHTS AS D/497946.875Metre
M112/A/125/T2X285M112 125MM PIITCH STEEL ROLLER CHAIN 285 T FLIGHT EVERY 2ND223.000Metre
M112/A/125/T2X385STEEL BUSH CHAIN 385 T FLIGHT EVERY 2ND92.000Metre
M112/B/100DIN 8167 ROLLER CONVEYOR CHAIN130.000Metre
M112/B/100/WPM112 CHAIN 100MM PITCH WITH B ROLLER AND WELDED PINS157.400Metre
M112/B/100/WP/L2X2/A2X2/LHLEFT HAND CHAIN ASSEMBLY M112/B/100/WP WITH L2 AND A2103.200Metre
M112/B/125DIN 8167 STEEL ROLLER CHAIN 125MM PITCH WITH B STYLE ROLLER16.000Metre
M160/A/100DIN 8167 STEEL BUSH CHAIN140.000Metre
M160/A/125DIN 8167 STEEL BUSH CHAIN175.000Metre
M160/A/160M160 160MM PITCH STEEL BUSH CHAIN56.400Metre
M224/A/125M224 125MM PITCH DIN 8167 STEEL BUSH CHAIN572.750Metre
M224/A/125/T2X485DIN 8167 STEEL BUSH CHAIN 485 T FLIGHT EVERY 2ND21.000Metre
M450/A/200DIN 8167 BUSH CHAIN14.800Metre
M450/A/200/R/S1X8M450 200MM PITCH BUSH CHAIN WITH S1 PUSHER ATTACHMENT15.600Metre
M450/A/200/T2X385DIN 8167 BUSH CHAIN WITH 385 T FLIGHT EVERY 2ND54.400Metre
M80/A/100M80 100MM PITCH STEEL BUSH CHAIN AS DIN 8167524.000Metre
M80/A/125DIN 8167 BUSH PLAIN CHAIN15.125Metre
FV112/A/100DIN 8165 STEEL BUSH CHAIN106.900Metre
FV140/A/125FV140 125MM PITCH STEEL BUSH CHAIN293.750Metre
FV140/B/160/DL/D5065DIN 8165 STEEL BUSH ROLLER WITH DEEP LINK HOMBAK CHAIN25.600Metre
FV90/A/100FV90 100MM PITCH STEEL BUSH CHAIN AS DIN 816551.000Metre
FV90/A/80DIN 8165 STEEL BUSH CHAIN44.320Metre
FVT40/B/40/RTX140 MM PITCH FEEP LINK ROLLER CHAIN WITH ROOF TOP ATT X1240.000Metre
WDH110/RWDH110 6.0 PITCH 51000lb WELDED STEEL DRAG CHAIN40.000Feet
WDH120/R6" PITCH WELDED STEEL DRAG CHAIN 15000LB UTS500.000Feet
WDH480/R8.0P WELDED STEEL DRAG CHAIN 79,000LBS UTS AS D-3993-08246.000Feet
WH106/HD/IBR/RWH106 HEAVY DUTY WELDED STEEL CHAIN IBR SPECIFICATION193.503Feet
WH106/IBR/R6 INCH PITCH WELDED STEEL CHAIN IBR SPECIFICATION200.000Feet
WH106/R6" PITCH OFFSET SIDE BAR WELDED STEEL CHAIN RIVETED80.000Feet
WH106XHD/IBR/R/RFX10WH106XHD HEAVY DUTY WELDED STEEL CHAIN WITH RF ATTACHMENT68.000Feet
WH124/IBR/R124 WELDED STEEL CHAIN (IBR)309.997Feet
WH124/XHD/IBR/RWH124/XHD WELDED STEEL CHAIN 4.063" PITCH 543kN (122,000LBS)1052.998Feet
WH124/XHD/R/1 3/4WH124XHD 4.063" pitch Welded Steel Chain riveted139.998Feet
WH132/IBR/RWH132 6.05" PITCH WELDED IBR STEEL CHAIN1237.662Feet
WH132/RWH132 6.05" PITCH WELDED STEEL CHAIN54.000Feet
WH155/N/R6.05 P WELDED STEEL CHAIN RIVETED CONSTRUCTION76.500Feet
WH157/IBR/RWH157 6.05" PITCH WELDED STEEL CHAIN IBR SPECIFICATION200.000Feet
WH78/C2.609 P WELDED STEEL CHAIN COTTERED CONSTRUCTION519.499Feet
WH78/R2.609 P WELDED STEEL CHAIN RIVETED CONSTRUCTION3380.027Feet
WH82/C/K1X13.075 P WELDED STEEL CHAIN WITH K1 ATTACHMENT EVERY PITCH64.000Feet
WH78/R2.609 P WELDED STEEL CHAIN RIVETED CONSTRUCTION1680.000Feet
WH82/R3.075 P WELDED STEEL CHAIN RIVETED CONSTRUCTION858.983Feet
WHX106/C6" PITCH WELDED STEEL CHAIN 250kN WHX SPECIFICATION704.000Feet
WHX132/C6.05" PITCH WELDED STEEL CHAIN 542kN WHX SPECIFICATION69.000Feet
WHX132/C/S1X6WELDED STEEL CHAIN69.000Feet
JK698RIVETLESS CHAIN (6.031INCH PITCH)209.001Feet
SS348SS348 3.015" PITCH RIVETLESS STAINLESS STEEL CHAIN23.998Feet
SS4584.031" PITCH X458 RIVETLESS CHAIN IN AUSTENITIC 304 S/S70.673Feet
SS678/D5X20STAINLESS RIVETLESS CHAIN SS67848.998Feet
SS678/D5X3CAST RIVETLESS CHAIN100.500Feet
JKS698/SS/CS SERIES DROP FORGED CHAIN250.000Feet
MS698RIVETLESS CHAIN497.000Feet
X678X678 6.03 INCH PITCH RIVETLESS FORGED CHAIN ASSEMBLY119.996Feet
38/13X39/G80/70LDIN 5687-8 ROUNK LINK CHAIN SUPPLIED 1 X 16 X 48MM ENLARGED60.000Each
38/14x5014 x 50 DIN 22252 Round Link chain14.600Metre
38/18X64DIN 22252 18 X 64 ROUND LINK CHAIN mtrs29.056Each
38/18X64/3LDIN 22252 18 X 64 SUPPLIED 3 LINK LENGTHS35.000Each
38/18X64/5LDIN 22252 18 X 64 SUPPLIED 5 LINK LENGTHS15.000Each
38/36X108/5LROUND LINK CHAIN102.000Each
38/14x5014 x 50 DIN 22252 Round Link chain1950.400Metre
38/8X24/G80/114LDIN 5687-8 ROUND LINK CHAIN SUPPLIED 1 X 10 X 30MM ENLARGED1750.000Each
38/36X108/5L/D6293Pair of Round Link Chain Strands 36 x 108/5L2.000Each
504/K2X1/R504 4.06" PITCH RIVETED GRAY PIN CAST CHAIN K2 EVERY LINK80.153Feet
C102B/C/K2X4COMBINATION CHAIN14.630Metre
C111/K2x44.76" pitch steel and malleable combination chain all cotter53.000Feet
C131/I4X482/111LCOMBINATION CHAIN C131 TWIN STRAND ASSEMBLY9.000Assembly
C132/C/S1X46" PITCH CAST COMBINATION CHAIN WITH S PUSHER ATTACHMENT538.000Feet
C132/S1X4/D10221C132 6.05" PITCH COMBINATION CHAIN C/W S1 9.5 HIGH EVERY 4TH10.083Feet
C586/T2X8/NRCOMBINATION CHAIN C8 WITH 8.00 T FLIGHT EVERY 2ND NOISE RED80.000Feet
C586/T4X8C586/T8 EXTENDED PITCH50.000Feet
C664/T8X2COMBINATION CHAIN C8 HEAVY DUTY WITH 8.00 T FLIGHT EVERY 2ND10.000Feet
C664/T9X2COMBINATION CHAIN C9 HEAVY DUTY WITH 9.00 T FLIGHT EVERY 2ND65.000Feet
C762/P12X2COMBINATION CHAIN C762/ P12 X 2 ASSEMBLY186.500Feet
C762/T12X23 INCH PITCH CAST COMBINATION CHAIN C12 WITH 12 INCH T FLIGH50.000Feet
CC13003.25 P CASE CHAIN330.660Feet
CC6002.50 P CAST CASE CHAIN15160.000Feet
CC600/ZN/ST2.50 P CAST CASE CHAIN ZINC PLATED (STORK)8944.060Metre
CC600D/ZN2.50 P CAST CASE CHAIN WITH D LUG ZINC PLATED50.000Feet
CC6252.5" PITCH CC625 CAST CASE CHAIN90.000Feet
H78MILL DUTY PLAIN CHAIN39.000Feet
M600/ZN/STREVERSABLE 2.50 P CAST CASE CHAIN ZINC PLATED (STORK).51.552Metre
477400 SERIES PINTLE CHAIN150.000Feet
D667XD667X STEEL PINTLE CHAIN19.875Feet
D667X/A1X2D667X PINTLE CHAIN WITH A1 ATTACHMENTS EVERY 2ND LINK64.685Feet
MX6033 INCH PITCH MAXI PLAIN CHAIN26.000Feet
MX6044 INCH PITCH MX604 MAXI SERIES PLAIN CHAIN618.000Feet
CC600D/PK/BLUECC600 D BLUE PLASTIC CHAIN FOR POLYKETTING396.240Metre
CC600F/PK2.50 P PLASTIC CHAIN WITH F PUSHER D250851.816Metre
CC631D/BLUE/PK2.50 P BLUE PLASTIC CASE CHAIN WITH DEEP PROFILE D LUG76.683Metre
JK600JK600 CLOSED TOP PLAIN CHAIN160.000Feet
JK600PD2.50 P ACETAL CASE CHAIN CLOSED TOP WITH D LUG300.000Feet
PM1400/9.5ACETAL CASE CHAIN 9.5 PIN39.640Feet
PM1400/W/CE WING STYLE PM1400 3.25" PITCH ACETAL CHAIN CHAMFERED EDGE119.998Feet
PM1400D/113.25 INCH PITCH ACETAL CASE CHAIN WITH D LUG 11MM PIN99.996Feet
PM1400D/9.53.25 INCH PITCH ACETAL CASE CHAIN WITH D LUG AND 9.5MM PIN68.340Feet
PM600STANDARD 2.5 INCH PITCH ACETAL CASE CHAIN WITH SNAP IN PIN770.000Feet
PM600/FX12.5 INCH PITCH ACETAL CASE CHAIN WITH F PUSHER EVERY PITCH280.000Feet
PM600/FX10ACETAL CASE CHAIN WITH F PUSHER EVERY 10TH300.000Feet
PM600/FX11ACETAL CASE CHAIN WITH F PUSHER EVERY 11TH300.000Feet
PM600/FX12ACETAL CASE CHAIN WITH F PUSHER EVERY 12TH200.000Feet
PM600DACETAL CHAIN WITH 'D' LUG600.000Feet
PM631DACETAL CASE CHAIN DEEP PROFILE50.000Feet
08B-1/D1X150.5 P CHAIN 15MM LONG EXTENDED PIN EVERY OTHER PIN5.000Metre
08B-1/SB0.5 P BS SIMPLEX SIDE BOW CHAIN40.000Metre
08B-1/SS4200.5 P BS SIMPLEX STAINLESS STEEL AISI42035.000Metre
08B-1/SS420/D30.5 P BS SIMPLEX CHAIN EXT PIN EVERY PITCH SS420 MATERIAL5.000Metre
08B-1/SS420/M1X240.5 P BS SIMPLEX CHAIN- M1 BOTH SIDES EVERY 24TH35.000Metre
08B-30.50 P BS TRIPLEX CHAINBS ROLLER CHAIN5.000Metre
10B-25/8P BS DUPLEX CHAIN5.000Metre
12/B-1/K1X43/4" PITCH BS SIMPLEX ROLLER CHAIN WITH K1 ATTACHMENT100.000Metre
12B-2/EXT3/4P BS DUPLEX CHAIN WITH EXTENDED PIN EVERY PITCH10.000Metre
16A-G11P ASA SIMPLEX RUBBER TOP CHAIN40.000Metre
16B-1/5PSHARP TOP CHAIN 5 PEP5.000Metre
16B-1/B616B-1 BUSH CHAIN IN 6 LINKS LENGTHS3.000Assembly
16B-1/HP1.0" PITCH SIMPLEX HOLLOW PIN CHAIN20.000Metre
16B-2/5P/2416B-2 5 PEP SHARP TOP CHAIN 24MM PLATE EVERY OUTER LINK AS15.240Metre
16B-2/K1X2/C16B-2 CHAIN WITH K1 BOTH SIDES EVERY OUTER20.000Metre
16B-3/C1"PITCH BS TRIPLEX CHAIN10.000Metre
20B-11.25P BS SIMPLEX CHAIN10.000Metre
20B-21.25 P BS DUPLEX CHAIN55.000Metre
24B-11.5 P BS SIMPLEX CHAIN13.700Metre
24B-21.5 P BS DUPLEX CHAIN50.000Metre
40HP0.5 P ASA SIMPLEX HOLLOW PIN CHAIN55.000Metre
A100H-11.25 P ASA SIMPLEX HEAVY DUTY CHAIN10.000Metre
A120-11.5 P ASA SIMPLEX CHAIN50.000Metre
A120-1/4P1.5 P ASA SIMPLEX SHARP TOP CHAIN 4 PEP12.190Metre
A120-1/4P/FT1.5 P ASA SIMPLEX SHARP TOP TRANSMISSION CHAIN WITH 4 X FLAT50.000Metre
A120-1/C1.5 P ASA SIMPLEX CHAIN8.270Metre
A120-21.50 P ASA DUPLEX CHAIN4.000Metre
A120-2/C1.50 P ASA DUPLEX CHAIN15.000Metre
A140-31.75INCH PITCH AMERCIAN STANDARD TRIPLEX CHAIN6.932Metre
A200-1TRANSMISSION CHAIN50.000Metre
A200-1/C2.5 PITCH ASA SIMPLEX CHAIN52.520Metre
A60-20.75 P ASA DUPLEX CHAIN95.000Metre
A60-30.75 P ASA TRIPLEX CHAIN30.000Metre
A80-2/C1.0 P ASA DUPLEX CHAIN20.000Metre
ASA80-1/SBSTANDARD ASA80-1 SIDE BOW CHAIN 25.40MM PITCH, 7.19 PIN19.290Metre
C16BF2/5PEPCLOSED TOP 16B-1 5 PEP10.000Metre
C20401.0 P EXTENDED PITCH CHAIN100.000Metre
C204225.40MM PITCH LARGE ROLER 15.88 DIA SIMPLEX EXTENDED PITCH16.000Metre
C50HP/SS0.625 P ASA SIMPLEX STAINLESS STEEL HOLLOW PIN25.000Feet
CT101SMALL CHAIN BREAKER 3/8" PITCH TO 3/4" PITCH TO 3/4" PITCH22.000Each
S42/A1X8/ZNS42 WITH A1 ATTACHMENT EVERY 8TH. ZINC PLATED AS D-4406-0972.000Assembly
S45/F1X4/ZPS45 CHAIN WITH F1 ATTACHMENT EVERY 4TH ZINC PLATED20.000Feet
S55/1S55 ZINC PLATED AGRI CHAIN400.000Feet
S55/R1.625 AGRICULTURAL CHAIN (HEAVY DUTY)270.000Metre
JKD1605AAJKD1605AA 5" PITCH HEAVY DUTY DRIVE CHAIN239.000Link
JKD30113.067 INCH / 77.90MM PITCH OFFSET SIDEBAR DRIVE CHAIN 110,00537.000Link
JKD307578.10MM PITCH OFFSET SIDEBAR DRIVE CHAIN4027.000Link
JKD4063103.20MM PITCH OFFSET SIDEBAR DRIVE CHAIN26.000Link
JKD4073103.45MM PITCH OFFSET SIDEBAR DRIVE CHAIN50.000Link
JKD5031JKD5031 5" INCH PITCH OFFSET SIDEBAR DRIVE CHAIN20.000Link
JKD5082 INCH PITCH OFFSET SIDEBAR DRIVE CHAIN300.000Link
JKD6042JKD6042 6" INCH PITCH CRANK LINK DRIVE CHAIN269.000Link
JKD8822.609 INCH PITCH OFFSET SIDEBAR DRIVE CHAIN197.000Link
BL6168/19L5" PITCH BLOCK AND BAR CHAIN UPRATED VERSION9.000Assembly
BL6168/21L5" PITCH BLOCK AND BAR CHAIN UPRATED VERSION10.000Assembly
BL6168/23L5" PITCH BLOCK AND BAR CHAIN UPRATED VERSION76.000Assembly
C2062H/SK2X7+8LANHAM LUG CHAIN X 72P 9 PAIRS OF LUGS @ 12'' (8P)39.000Each
CC6352.50 P FABRICATED CASE CHAIN. CHAIN SUPPLIED IN 48 PITCH LEN230.314Metre
D162/5LCOMBINATION CHAIN AS D/162 5 LINK LENGTH (FEEDER BREAKER)18.000Assembly
D3271/HD4" pitch heavy duty monorail transport chain to drawing84.679Metre
D6827/3L100mm pitch steel bush chain old version as drawing D6827.5.100Metre
D6827/4L100MM PITCH OLD VERSION SPECIAL BUSH CHAIN1.600Metre
D6827/5L100MM PITCH OLD VERSION SPECIAL BUSH CHAIN17.500Metre
D6827/7L100mm pitch steel bush chain for Underpress Chain original16.800Metre
D728740mm PITCH CHIP PRESS CHAIN AS D728760.320Metre
D762D762 ASSEMBLY122.175Feet
JK261/SS50MM PITCH HOLLOW PIN CHAIN WITH 30MM DIAMETER ROLLER 10MM100.000Metre
JKB100/A/1016/L2X44" PITCH BUSH CHAIN WITH L2 ATTACHMENT EVERY 4TH33.300Metre
JKB175/A/150/BT2X300JKB175 STEEL BUSH CHAIN WITH BT2X300 BOLTED CLEANER FLIGHT76.000Metre
JKR3428/A/KOX2250MM PITCH TRANSFER CHAIN UTS 270KN INTEGROL BENT PLATFORM116.000Metre
JKR728740MM PITCH CHIP PRESS CHAIN AS DRAWING D/728760.320Metre
JKR9047/S1X4JKR9047 9" PITCH ROLLER CHAIN WITH S1 PUSHER EVERY 4TH PITCH21.000Feet
JKRC7478/M2 FOLD JOHN KING ROLLER CARPET CONVEYOR CHAIN142.284Metre
JKRC7478/NP/S2 FOLD NEW STD NELSON PINE PRESS CHAIN BELT737.801Metre
JKRC76401 FOLD JOHN KING ROLLER CARPET CONVEYOR CHAIN36.944Metre
WHM160/160/RWHM160 METRIC SERIES WELDED STEEL CHAIN 160mm PITCH389.100Metre
WHM224/160/RMETRIC WELDED SERIES CHAIN34.720Metre
WHM224/200/RMETRIC WELDED SERIES CHAIN32.000Metre
WHM224/C/200/A114X4WHM224/C/200 CRANK LINK WELDED BUSH CHAIN, 85MM ROLLER140.000Metre
WHM315/160/RWHM WELDED STEEL CHAIN513.600Metre

[styled_image image=”https://www.johnkingchains.com/wp-content/uploads/news001-problemcement-foto04.jpg” w=”230″ h=”0″ link=”” lightbox=”no” alt=”Worn out chain pins from the old design” rel=”” align=”right” caption=”Worn out chain pins from the old design”]

The same ten pins were also checked for hardness on the unworn portion of the body and the worn portion to obtain hardness values. This particular testing was carried out using a Rockwell C hardness tester. Table 2 shows the hardness testing values of pins on drive and none drive side on worn and unworn areas of the pin. It clearly demonstrates that the primary wear condition was taking place on the pin body where the link articulates. The articulation will only take place when the chain moves around the sprockets on the head and tail shaft.

29/05/2024
Item CodeItem NameStock QuantityStock Unit
JKR81HHExtra Heavy Duty Roller Conveyor Chain, pitch 2.609'', 23 mm roller diameterm100.000
JKR81XRoller Conveyor Chain, pitch 2.609'', 23 mm roller diameterm443.868
JKR81XHHeavy Duty Roller Conveyor Chain, pitch 2.609'', 23 mm roller diameterm100.000
M112/A/100Metric Bush Chain M112, 100 mm pitchm450.000
M112/A/100/CLConnecting Link Metric Bush Chain M112, 100 mm pitchpcs.50.000
M112/A/125Metric Bush Chain M112, 125 mm pitchm100.000
M112/A/125/CLConnecting Link Metric Bush Chain M112, 125 mm pitchpcs.50.000
M112/A/125/T2X285Metric Bush Chain M112, 125 mm pitch, 285 mm T flight every 2ndm375.000
M112/A/160Metric Bush Chain M112, 160 mm pitchm360.800
M112/A/160/CLConnecting Link Metric Bush Chain M112, 160 mm pitchpcs.50.000
M112/A/80Metric Bush Chain M112, 80 mm pitchm161.120
M112/B/100Metric Roller Chain M112, 100 mm pitch, 30 mm roller diameterm170.000
M112/B/100/CLConnecting Link Metric Roller Chain M112, 100 mm pitch, 30 mm roller diameterpcs.50.000
M112/B/125/CLConnecting Link Metric Roller Chain M112, 125 mm pitch, 30 mm roller diameterpcs.50.000
M160/A/100Metric Bush Chain M160, 100 mm pitchm200.000
M160/A/100/CLConnecting Link Metric Bush Chain M160, 100 mm pitchpcs.50.000
M160/A/125Metric Bush Chain M160, 125 mm pitchm80.000
M160/A/125/CLConnecting Link Metric Bush Chain M160, 125 mm pitchpcs.42.000
M160/A/160Metric Bush Chain M160, 160 mm pitchm130.800
M160/A/160/CLConnecting Link Metric Bush Chain M160, 160 mm pitchpcs.49.000
M224/A/125/CLConnecting Link Metric Bush Chain M224, 125 mm pitchpcs.30.000
M224/A/160Metric Bush Chain M224, 160 mm pitchm24.800
M224/A/160/CLConnecting Link Metric Bush Chain M224, 160 mm pitchpcs.40.000
M315/A/160/B/T2X385Metric Roller Chain M315, 160 mm pitch, 50 mm roller diameter, 385 mm T flight every 2ndm25.000
M315/C/160/A2X1Metric Roller Chain M315, 160 mm pitch, 100 mm roller diameter, A2 attachments every pitchm28.800
M450/A/200/T2X385Metric Bush Chain M450, 200 mm pitch, 385 mm T flight every 2ndm110.400
M80/A/100/CLConnecting Link Metric Bush Chain M80, 100 mm pitchpcs.50.000
M80/B/80/K2X1Metric Roller Chain M80, 25 mm roller diameter, 80 mm pitch, K2 attachment every pitchm104.160
MC112/A/100Metric Bush Chain M112, 100 mm pitch, 14.3 mm hollow pinm25.000
FV112/A/100Metric Bush Chain FV112, 100 mm pitchm100.000
FV112/A/100/CLConnecting Link Metric Bush Chain FV112, 100 mm pitchpcs.50.000
FV112/A/125Metric Bush Chain FV112, 125 mm pitchm100.000
FV112/A/125/CLConnecting Link Metric Bush Chain FV112, 125 mm pitchpcs.50.000
FV140/A/100Metric Bush Chain FV140, 100 mm pitchm100.000
FV140/A/100/CLConnecting Link Metric Bush Chain FV140, 100 mm pitchpcs.50.000
FV140/A/125Metric Bush Chain FV140, 125 mm pitchm150.000
FV140/A/125/CLConnecting Link Metric Bush Chain FV140, 125 mm pitchpcs.20.000
FV140/A/160Metric Bush Chain FV140, 160 mm pitchm187.760
FV140/A/160/CLConnecting Link Metric Bush Chain FV140, 160 mm pitchpcs.50.000
FV140/A/80Metric Bush Chain FV140, 80 mm pitchm100.000
FV140/A/80/CLConnecting Link Metric Bush Chain FV140, 80 mm pitchpcs.50.000
FV40/A/50/GK1Metric Bush Chain FV40, 50 mm pitch, GK hole in outer platem50.000
FV90/A/100Metric Bush Chain FV90, 100 mm pitchm140.000
FV90/A/100/CLConnecting Link Metric Bush Chain FV90, 100 mm pitchpcs.50.000
WH106/IBR/RWelded Steel Chain WH106, induction hardened pin & barrel, riveted constructionm493.776
WH106XHD/IBR/RHeavy Duty Welded Steel Chain WH106, induction hardened pin & barrel, riveted constructionm300.000
WH124/IBR/RWelded Steel Chain WH124, induction hardened pin & barrel, riveted constructionm169.672
WH132/IBR/RWelded Steel Chain WH132, induction hardened pin & barrel, riveted constructionm64.541
WH157/IBR/RWelded Steel Chain WH157, induction hardened pin & barrel, riveted constructionm191.166
WH78/RWelded Steel Chain WH78, riveted constructionm151.240
50X10/V/MN50x10 V Groove Manganese Wearstrip, X120Mn12 (DIN 1.3401), in 3000 mm lenghts, weight 4.023 kg/mm447.000
60X10/V/MN60x10 V Groove Manganese Wearstrip, X120Mn12 (DIN 1.3401), in 3000 mm lenghts, weight 4.6354 kg/mm225.000
60X12/V/MN60x12 V Groove Manganese Wearstrip, X120Mn12 (DIN 1.3401), in 3000 mm lenghts, weight 5.7291 kg/mm72.000
CC600Cast Case Chain, 2.50" pitchft330.000
CC600/S/2/ZN/PINPin CC600, zinc plated, 2 part screwedpcs.180.000
CC600/S/CLConnecting Link CC600, 2.50 in pitch, screwed pcs.300.000
CC600/ZN/STCast Case Chain, Zinc Plated, 2.50 in pitch, STORKm134.112
D667XSteel Pintle Chain, 2.25" pitchft1010.000
PM600/PPG Acetal Case Chain PM600, 1 row, 2.5" pitch, polypropylene glass fibre mat.ft84.000
05B-1Roller Chain 05B-1, British Standard, 1 row, 5/16" pitchm50.000
05B-1/CLConnecting Link 05B-1, British Standard, 1 row, 5/16" pitchpcs.95.000
05B-1/OCLOffset Connecting Link 05B-1, British Standard, 1 row, 5/16" pitchpcs.45.000
06B-1Roller Chain 06B-1, British Standard, 1 row, 3/8" pitchm200.000
06B-1/CLConnecting Link 06B-1, British Standard, 1 row, 3/8" pitchpcs.200.000
06B-1/DPOCLDouble Pitch Offset Connecting Link 06B-1, British Standard, 1 row, 3/8" pitchpcs.200.000
06B-1/NP/CLConnecting Link 06B-1, British Standard, 1 row, 3/8" pitch, nickel platedpcs.140.000
06B-1/NP/OCLOffset Connecting Link 06B-1, British Standard, 1 row, 3/8" pitch, nickel platedpcs.72.000
06B-1/OCLOffset Connecting Link 06B-1, British Standard, 1 row, 3/8" pitchpcs.232.000
06B-1/SS/DPOCLDouble Pitch Offset Connecting Link 06B-1, British Standard, 1 row, 3/8" pitch, stainless steelpcs.100.000
06B-2Roller Chain 06B-2, British Standard, 2 row, 3/8" pitchm90.000
06B-2/CLConnecting Link 06B-2, British Standard, 2 row, 3/8" pitchpcs.50.000
06B-2/OCLOffset Connecting Link 06B-2, British Standard, 2 row, 3/8" pitchpcs.106.000
06B-3/OCLOffset Connecting Link 06B-3, British Standard, 3 row, 3/8" pitchpcs.20.000
081-1Roller Chain 081-1, British Standard, 1 row, 1/2" pitchm35.000
081-1/CLConnecting Link 081-1, British Standard, 1 row, 1/2" pitchpcs.1500.000
083-1Roller Chain 083-1, British Standard, 1 row, 1/2" pitchm200.000
083-1/CLConnecting Link 083-1, British Standard, 1 row, 1/2" pitchpcs.200.000
083-1/HP/CLConnecting Link 083-1, British Standard, 1 row, 1/2" pitch, hollow pinpcs.52.000
083-1/OCLOffset Connecting Link 083-1, British Standard, 1 row, 1/2" pitchpcs.100.000
08B-1Roller Chain 08B-1, British Standard, 1 row, 1/2" pitchm350.000
08B-1/CRoller Chain 08B-1, British Standard, 1 row, 1/2" pitch, cottered constructionm8.000
08B-1/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitchpcs.152.000
08B-1/DPOCLDouble Pitch Offset Connecting Link 08B-1, British Standard, 1 row, 1/2" pitchpcs.100.000
08B-1/GLRoller Chain 08B-1, British Standard, 1 row, 1/2" pitch, straight side platem145.000
08B-1/GL/TB/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, straight side plate, TB attachment one spcs.400.000
08B-1/HPRoller Chain 08B-1, British Standard, 1 row, 1/2" pitch, hollow pinm80.000
08B-1/HP/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, hollow pinpcs.29.000
08B-1/HP/F3Roller Chain 08B-1, British Standard, 1 row, 1/2" pitch, hollow pin, wide insidem100.000
08B-1/HP/SS/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, hollow pin, stainless steelpcs.4.000
08B-1/ILInner Link 08B-1, British Standard, 1 row, 1/2" pitchpcs.4000.000
08B-1/K1X1/ILInner Link 08B-1, British Standard, 1 row, 1/2" pitch, K1 attachment one sidepcs.1012.000
08B-1/K1X2/ILInner Link 08B-1, British Standard, 1 row, 1/2" pitch, K1 attachment both sidespcs.1003.000
08B-1/K2X1/ILInner Link 08B-1, British Standard, 1 row, 1/2" pitch, K2 attachment one sidepcs.800.000
08B-1/OCLOffset Connecting Link 08B-1, British Standard, 1 row, 1/2" pitchpcs.238.000
08B-1/R/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, rivetedpcs.200.000
08B-1/SS/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, stainless steelpcs.55.000
08B-1/SS/MON/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, stainless steel, special plate both sidepcs.1648.000
08B-1/SS/OCLOffset Connecting Link 08B-1, British Standard, 1 row, 1/2" pitch, stainless steelpcs.89.000
08B-1SB/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, side bowpcs.330.000
08B-2Roller Chain 08B-2, British Standard, 2 row, 1/2" pitchm315.000
08B-2/CLConnecting Link 08B-2, British Standard, 2 row, 1/2" pitchpcs.50.000
08B-2/G2/CLConnecting Link 08B-2, British Standard, 2 row, 1/2" pitch, rubber toppcs.80.000
08B-2/GL/SS/CLConnecting Link 08B-2, British Standard, 2 row, 1/2" pitch, straight side plate, stainless steelpcs.65.000
08B-2/SPX1Roller Chain 08B-2, British Standard, 2 row, 1/2" pitch, spike attachment one side every outerm320.000
08B-3Roller Chain 08B-3, British Standard, 3 row, 1/2" pitchm285.000
08B-3/CLConnecting Link 08B-3, British Standard, 3 row, 1/2" pitchpcs.250.000
08B-3/DPOCLDouble Pitch Offset Connecting Link 08B-3, British Standard, 3 row, 1/2" pitchpcs.50.000
08BHPF/CLConnecting Link 08B-1, British Standard, 1 row, 1/2" pitch, hollow pin, circlippcs.216.000
100-1Roller Chain 100-1, American Standard, 1 row, 1 1/4" pitchm125.000
100-1/CLConnecting Link 100-1, American Standard, 1 row, 1 1/4" pitchpcs.4.000
100-1/NPRoller Chain 100-1, American Standard, 1 row, 1 1/4" pitch, nickel platedm80.000
100-1/OCLPółogniwo/Offset Connecting Link 100-1, American Standard, 1 row, 1 1/4" pitchpcs.39.000
100-2Roller Chain 100-2, American Standard, 2 row, 1 1/4" pitchm10.000
100-2/CLConnecting Link 100-2, American Standard, 2 row, 1 1/4" pitchpcs.10.000
100H-1Roller Chain 100H-1, American Standard, 1 row, 1 1/4" pitch, havy dutym60.000
100H-1/CLConnecting Link 100H-1, American Standard, 1 row, 1 1/4" pitch, havy dutypcs.21.000
100H-1/OCLOffset Connecting Link 100H-1, American Standard, 1 row, 1 1/4" pitch, havy dutypcs.25.000
10B-1Roller Chain 10B-1, British Standard, 1 row, 5/8" pitchm60.000
10B-1/A1X2Roller Chain 10B-1, British Standard, 1 row, 5/8" pitch, A1 attachment every outer linkm50.000
10B-1/CRoller Chain 10B-1, British Standard, 1 row, 5/8" pitch, cottered constructionm5.000
10B-1/CLConnecting Link 10B-1, British Standard, 1 row, 5/8" pitchpcs.100.000
10B-1/DPOCLDouble Pitch Offset Connecting Link 10B-1, British Standard, 1 row, 5/8" pitchpcs.1011.000
10B-1/HP/CLConnecting Link 10B-1, British Standard, 1 row, 5/8" pitch, hollow pin, spring clippcs.9.000
10B-1/K1X2Roller Chain 10B-1, British Standard, 1 row, 5/8" pitch, K1 attachment every outer linkm50.000
10B-1/K1X2/R/CLConnecting Link 10B-1, British Standard, 1 row, 5/8" pitch, K1 attachment both sides, rivetedpcs.1450.000
10B-1/K1X4Roller Chain 10B-1, British Standard, 1 row, 5/8" pitch, K1 attachment every 4thm100.000
10B-1/M1X2/R/CLConnecting Link 10B-1, British Standard, 1 row, 5/8" pitch, M1 attachment both sides, rivetedpcs.500.000
10B-1/NPRoller Chain 10B-1, British Standard, 1 row, 5/8" pitch, nickel platedm260.000
10B-1/NP/CLConnecting Link 10B-1, British Standard, 1 row, 5/8" pitch, nickel platedpcs.50.000
10B-1/NP/OCLOffset Connecting Link 10B-1, British Standard, 1 row, 5/8" pitch, nickel platedpcs.12.000
10B-1/OCLOffset Connecting Link 10B-1, British Standard, 1 row, 5/8" pitchpcs.102.000
10B-1/SSRoller Chain 10B-1, British Standard, 1 row, 5/8" pitch, stainless steelm50.000
10B-1/SS/CLConnecting Link 10B-1, British Standard, 1 row, 5/8" pitch, stainless steelpcs.39.000
10B-1/SS/OCLOffset Connecting Link 10B-1, British Standard, 1 row, 5/8" pitch, stainless steelpcs.70.000
10B-2Roller Chain 10B-2, British Standard, 2 row, 5/8" pitchm110.000
10B-2/CLConnecting Link 10B-2, British Standard, 2 row, 5/8" pitchpcs.50.000
10B-2/GLRoller Chain 10B-2, British Standard, 2 row, 5/8" pitch, straight side platem65.000
10B-2/GL/CLConnecting Link 10B-2, British Standard, 2 row, 5/8" pitch, straight side platepcs.177.000
10B-2/SSRoller Chain 10B-2, British Standard, 2 row, 5/8" pitch, stainless steelm40.000
10B-2/SS/CLConnecting Link 10B-2, British Standard, 2 row, 5/8" pitch, stainless steelpcs.63.000
10B-2/SS/OCLOffset Connecting Link 10B-2, British Standard, 2 row, 5/8" pitch, stainless steelpcs.62.000
10B-3Roller Chain 10B-3, British Standard, 3 row, 5/8" pitchm15.000
120-1Roller Chain 120-1, American Standard, 1 row, 1 1/2" pitchm55.000
120-1/NPRoller Chain 120-1, American Standard, 1 row, 1 1/2" pitch, nickel platedm40.000
120-1/NP/OCLOffset Connecting Link 120-1, American Standard, 1 row, 1 1/2" pitch, nickel platedpcs.2.000
120-1/OCLOffset Connecting Link 120-1, American Standard, 1 row, 1 1/2" pitchpcs.55.000
120-2Roller Chain 120-2, American Standard, 2 row, 1 1/2" pitchm5.000
120-2/CRoller Chain 120-2, American Standard, 2 row, 1 1/2" pitch, cottered constructionm15.000
120-2/CLConnecting Link 120-2, American Standard, 2 row, 1 1/2" pitchpcs.10.000
120-2/OCLOffset Connecting Link 120-2, American Standard, 2 row, 1 1/2" pitchpcs.50.000
12B-1Roller Chain 12B-1, British Standard, 1 row, 3/4" pitchm220.000
12B-1/5P/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, sharp top, 5 PEPpcs.15.000
12B-1/716SRRoller Chain 12B-1, British Standard, 1 row, 3/4" pitch, reversed ko chain (brick work chain), 12B-1m145.000
12B-1/716SR/IK/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, reversed ko chain (brick work chain), inpcs.4.000
12B-1/A1X4Roller Chain 12B-1, British Standard, 1 row, 3/4" pitch, A1 attachment every 4thm100.000
12B-1/CRoller Chain 12B-1, British Standard, 1 row, 3/4" pitch, cottered constructionm20.000
12B-1/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitchpcs.90.000
12B-1/DRRoller Chain 12B-1, British Standard, 1 row, 3/4" pitch, dacromet coatedm30.000
12B-1/G1/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, rubber toppcs.25.000
12B-1/GL/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, straight side platepcs.845.000
12B-1/HPRoller Chain 12B-1, British Standard, 1 row, 3/4" pitch, hollow pinm75.000
12B-1/K1X1/ILInner Link 12B-1, British Standard, 1 row, 3/4" pitch, K1 attachment one sidespcs.1004.000
12B-1/K1X2/ILInner Link 12B-1, British Standard, 1 row, 3/4" pitch, K1 attachment both sidespcs.501.000
12B-1/K2X2/ILInner Link 12B-1, British Standard, 1 row, 3/4" pitch, K2 attachment both sidespcs.1013.000
12B-1/NP/OCLOffset Connecting Link 12B-1, British Standard, 1 row, 3/4" pitch, nickel platedpcs.112.000
12B-1/OCLOffset Connecting Link 12B-1, British Standard, 1 row, 3/4" pitchpcs.50.000
12B-1/SS/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, stainless steelpcs.856.000
12B-1/SS/K1X2/R/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, stainless steel, K1 attachment both sidepcs.598.000
12B-1/SS/M1X2/R/CLConnecting Link 12B-1, British Standard, 1 row, 3/4" pitch, stainless steel, M1 attachment both sidepcs.900.000
12B-2Roller Chain 12B-2, British Standard, 2 row, 3/4" pitchm45.000
12B-2/CLConnecting Link 12B-2, British Standard, 2 row, 3/4" pitchpcs.50.000
12B-2/DRRoller Chain 12B-2, British Standard, 2 row, 3/4" pitch, dacromet coatedm290.000
12B-2/EXTRoller Chain 12B-2, British Standard, 2 row, 3/4" pitch, extended pin every pitchm5.000
12B-2/OCLOffset Connecting Link 12B-2, British Standard, 2 row, 3/4" pitchpcs.130.000
12B-2/U2Roller Chain 12B-2, British Standard, 2 row, 3/4" pitch, steel saddlesm160.000
12B-3Roller Chain 12B-3, British Standard, 3 row, 3/4" pitchm265.000
12B-3/OCLOffset Connecting Link 12B-3, British Standard, 3 row, 3/4" pitchpcs.71.000
140-1Roller Chain 140-1, American Standard, 1 row, 1 3/4" pitchm125.000
140-1/CLConnecting Link 140-1, American Standard, 1 row, 1 3/4" pitchpcs.36.000
140-1/OCLOffset Connecting Link 140-1, American Standard, 1 row, 1 3/4" pitchpcs.51.000
140-2/CLConnecting Link 140-2, American Standard, 2 row, 1 3/4" pitchpcs.8.000
140-2/OCLOffset Connecting Link 140-2, American Standard, 2 row, 1 3/4" pitchpcs.25.000
140-3Roller Chain 140-3, American Standard, 3 row, 1 3/4" pitchm15.000
160-1Roller Chain 160-1, American Standard, 1 row, 2" pitchm130.000
160-1/OCLOffset Connecting Link 160-1, American Standard, 1 row, 2" pitchpcs.24.000
16B-1Roller Chain 16B-1, British Standard, 1 row, 1" pitchm165.000
16B-1/5P/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitch, sharp top, 5 PEPpcs.34.000
16B-1/A1X1/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitch, A1 attachment one side, spring clippcs.14.000
16B-1/CRoller Chain 16B-1, British Standard, 1 row, 1" pitch, cottered constructionm130.000
16B-1/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitchpcs.80.000
16B-1/G1Roller Chain 16B-1, British Standard, 1 row, 1" pitch, rubber topm10.000
16B-1/G1/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitch, rubber toppcs.2.000
16B-1/GL/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitch, straight side platepcs.247.000
16B-1/K1X2/R/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitch, K1 attachment both sides, rivetedpcs.680.000
16B-1/NP/OCLOffset Connecting Link 16B-1, British Standard, 1 row, 1" pitch, nickel platedpcs.11.000
16B-1/OCLOffset Connecting Link 16B-1, British Standard, 1 row, 1" pitchpcs.50.000
16B-1/SS/K1X2/R/CLConnecting Link 16B-1, British Standard, 1 row, 1" pitch, stainless steel, K1 attachment both sidespcs.400.000
16B-2Roller Chain 16B-2, British Standard, 2 row, 1" pitchm40.000
16B-2/5P/CLConnecting Link 16B-2, British Standard, 2 row, 1" pitch, sharp top, 5 PEPpcs.21.000
16B-2/CLConnecting Link 16B-2, British Standard, 2 row, 1" pitchpcs.439.000
16B-2/OCLOffset Connecting Link 16B-2, British Standard, 2 row, 1" pitchpcs.128.000
16B-3Roller Chain 16B-3, British Standard, 3 row, 1" pitchm80.000
16B-3/CRoller Chain 16B-3, British Standard, 3 row, 1" pitch, cottered constructionm10.000
16B-3/CLConnecting Link 16B-3, British Standard, 3 row, 1" pitchpcs.14.000
16B-3/OCLOffset Connecting Link 16B-3, British Standard, 3 row, 1" pitchpcs.80.000
200-1/OCLOffset Connecting Link 200-1, American Standard, 1 row, 2 1/2" pitchpcs.20.000
200-2Roller Chain 200-2, American Standard, 2 row, 2 1/2" pitchm4.572
200-2/CLConnecting Link 200-2, American Standard, 2 row, 2 1/2" pitchpcs.3.000
208B-1Roller Chain 208B-1, British Standard, 1 row, 1" pitch, double pitchm15.000
20B-1Roller Chain 20B-1, British Standard, 1 row, 1 1/4" pitchm50.000
20B-1/5PRoller Chain 20B-1, British Standard, 1 row, 1 1/4" pitch, sharp top, 5 PEPm10.000
20B-1/CRoller Chain 20B-1, British Standard, 1 row, 1 1/4" pitch, cottered constructionm5.000
20B-1/CLConnecting Link 20B-1, British Standard, 1 row, 1 1/4" pitchpcs.124.000
20B-1/G1/CLConnecting Link 20B-1, British Standard, 1 row, 1 1/4" pitch, , rubber toppcs.38.000
20B-1/OCLOffset Connecting Link 20B-1, British Standard, 1 row, 1 1/4" pitchpcs.178.000
20B-2Roller Chain 20B-2, British Standard, 2 row, 1 1/4" pitchm40.000
20B-2/CLConnecting Link 20B-2, British Standard, 2 row, 1 1/4" pitchpcs.77.000
20B-2/OCLOffset Connecting Link 20B-2, British Standard, 2 row, 1 1/4" pitchpcs.54.000
20B-3/CLConnecting Link 20B-3, British Standard, 3 row, 1 1/4" pitchpcs.3.000
210B-1Roller Chain 210B-1, British Standard, 1 row, 1 1/4" pitch, double pitchm180.000
210B-1/CLConnecting Link 210B-1, British Standard, 1 row, 1 1/4" pitch, double pitchpcs.385.000
210B-1/OCLOffset Connecting Link 210B-1, British Standard, 1 row, 1 1/4" pitch, double pitchpcs.188.000
24B-1Roller Chain 24B-1, British Standard, 1 row, 1 1/2" pitchm260.000
24B-1/5P/CLConnecting Link 24B-1, British Standard, 1 row, 1 1/2" pitch, sharp top, 5 PEPpcs.26.000
24B-1/CRoller Chain 24B-1, British Standard, 1 row, 1 1/2" pitch, cottered constructionm100.000
24B-1/CLConnecting Link 24B-1, British Standard, 1 row, 1 1/2" pitchpcs.45.000
24B-1/OCLOffset Connecting Link 24B-1, British Standard, 1 row, 1 1/2" pitchpcs.56.000
24B-2Roller Chain 24B-2, British Standard, 2 row, 1 1/2" pitchm290.000
24B-2/5PRoller Chain 24B-2, British Standard, 2 row, 1 1/2" pitch, sharp top, 5 PEPm10.000
24B-2/5P/CLConnecting Link 24B-2, British Standard, 2 row, 1 1/2" pitch, sharp top, 5 PEPpcs.18.000
24B-2/CLConnecting Link 24B-2, British Standard, 2 row, 1 1/2" pitchpcs.37.000
24B-2/OCLOffset Connecting Link 24B-2, British Standard, 2 row, 1 1/2" pitchpcs.49.000
28B-2/CLConnecting Link 28B-2, British Standard, 2 row, 1 3/4" pitchpcs.8.000
32B-1Roller Chain 32B-1, British Standard, 1 row, 2" pitchm20.000
32B-1/2PRoller Chain 32B-1, British Standard, 1 row, 2" pitch, sharp top, 2 PEPm25.000
32B-1/2P/CLConnecting Link 32B-1, British Standard, 1 row, 2" pitch, sharp top, 2 PEPpcs.60.000
32B-1/CRoller Chain 32B-1, British Standard, 1 row, 2" pitch, cottered constructionm120.000
32B-1/CLConnecting Link 32B-1, British Standard, 1 row, 2" pitchpcs.30.000
32B-1/OCLOffset Connecting Link 32B-1, British Standard, 1 row, 2" pitchpcs.83.000
32B-2Roller Chain 32B-2, British Standard, 2 row, 2" pitchm110.000
32B-2/CLConnecting Link 32B-2, British Standard, 2 row, 2" pitchpcs.139.000
32B-2/OCLOffset Connecting Link 32B-2, British Standard, 2 row, 2" pitchpcs.41.000
35-1Roller Chain 35-1, American Standard, 1 row, 3/8" pitchm125.000
35-1/CLConnecting Link 35-1, American Standard, 1 row, 3/8" pitchpcs.210.000
35-1/OCLOffset Connecting Link 35-1, American Standard, 1 row, 3/8" pitchpcs.150.000
35-2Roller Chain 35-2, American Standard, 2 row, 3/8" pitchm65.000
38.4RRoller Chain 38.4R, Non-Standard, 1 row, 38.4 mm pitchm270.000
38.4R/CLZłączka/Connecting Link 38.4R, Non-Standard, 1 row, 38.4 mm pitch, agricultural chainspcs.498.000
38.4R/K1X2/R/CLZłączka/Connecting Link 38.4R, Non-Standard, 1 row, 38.4 mm pitch, agricultural chains, K1 attachmenpcs.294.000
38.4R/OCLOffset Connecting Link 38.4R, Non-Standard, 1 row, 38.4 mm pitch, agricultural chainspcs.150.000
40-1Roller Chain 40-1, American Standard, 1 row, 1/2" pitchm100.000
40-1/9.5X1Roller Chain 40-1, American Standard, 1 row, 1/2" pitch, 9.5 mm long extended pin every pitchm150.000
40-1/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitchpcs.120.000
40-1/DEPX1Roller Chain 40-1, American Standard, 1 row, 1/2" pitch, duplex extended pin every pitchm210.312
40-1/HPRoller Chain 40-1, American Standard, 1 row, 1/2" pitch, hollow pinm1415.000
40-1/HP/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitch, hollow pinpcs.150.000
40-1/HP/SSRoller Chain 40-1, American Standard, 1 row, 1/2" pitch, hollow pin, stainless steelm105.000
40-1/HP/SS/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitch, hollow pin, stainless steelpcs.455.000
40-1/NPRoller Chain 40-1, American Standard, 1 row, 1/2" pitch, nickel platedm220.000
40-1/NP/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitch, nickel platedpcs.470.000
40-1/OCLOffset Connecting Link 40-1, American Standard, 1 row, 1/2" pitchpcs.50.000
40-1/SBRoller Chain 40-1, American Standard, 1 row, 1/2" pitch, side bowm30.000
40-1/SB/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitch, side bowpcs.109.000
40-1/SB/K1X1/BW/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitch, side bow, K1 attachment one sidepcs.37.000
40-1/SB/K1X2/CLConnecting Link 40-1, American Standard, 1 row, 1/2" pitch, side bow, K1 attachment both sidespcs.1000.000
40-2Roller Chain 40-2, American Standard, 2 row, 1/2" pitchm125.000
40-2/CLConnecting Link 40-2, American Standard, 2 row, 1/2" pitchpcs.344.000
40-2/OCLOffset Connecting Link 40-2, American Standard, 2 row, 1/2" pitchpcs.195.000
40-3Roller Chain 40-3, American Standard, 3 row, 1/2" pitchm90.000
40B-1/CRoller Chain 40B-1, British Standard, 1 row, 2 1/2" pitch, cottered constructionm55.000
415BRoller Chain 415B, Non-Standard, 1 row, 1/2" pitch, seeder chainm100.000
415B/CLConnecting Link 415B, Non-Standard, 1 row, 1/2" pitch, seeder chainpcs.250.000
415B/DPOCLDouble Pitch Offset Connecting Link 415B, Non-Standard, 1 row, 1/2" pitch, seeder chainpcs.100.000
415B/OCLOffset Connecting Link 415B, Non-Standard, 1 row, 1/2" pitch, seeder chainpcs.100.000
48B-1/CRoller Chain 48B-1, British Standard, 1 row, 3" pitch, cottered constructionm20.000
50-1Roller Chain 50-1, American Standard, 1 row, 5/8" pitchm135.000
50-1/CLConnecting Link 50-1, American Standard, 1 row, 5/8" pitchpcs.1085.000
50-1/DPOCLDouble Pitch Offset Connecting Link 50-1, American Standard, 1 row, 5/8" pitchpcs.92.000
50-1/HPRoller Chain 50-1, American Standard, 1 row, 5/8" pitch, hollow pinm20.000
50-1/HP/SS/CLConnecting Link 50-1, American Standard, 1 row, 5/8" pitch, hollow pin, stainless steel, circlippcs.500.000
50-1/OCLOffset Connecting Link 50-1, American Standard, 1 row, 5/8" pitchpcs.1035.000
50-1/R/CLConnecting Link 50-1, American Standard, 1 row, 5/8" pitch, rivetedpcs.107.000
50-2Roller Chain 50-2, American Standard, 2 row, 5/8" pitchm50.000
50-2/CLConnecting Link 50-2, American Standard, 2 row, 5/8" pitchpcs.100.000
50-2/OCLOffset Connecting Link 50-2, American Standard, 2 row, 5/8" pitchpcs.60.000
50-3Roller Chain 50-3, American Standard, 3 row, 5/8" pitchm55.000
50-3/OCLOffset Connecting Link 50-3, American Standard, 3 row, 5/8" pitchpcs.30.000
56B-1Roller Chain 56B-1, British Standard, 1 row, 3.5" pitchm45.000
60-1Roller Chain 60-1, American Standard, 1 row, 3/4" pitchm160.000
60-1/CLConnecting Link 60-1, American Standard, 1 row, 3/4" pitchpcs.53.000
60-1/DPOCLDouble Pitch Offset Connecting Link 60-1, American Standard, 1 row, 3/4" pitchpcs.300.000
60-1/HP/SS/CLConnecting Link 60-1, American Standard, 1 row, 3/4" pitch, hollow pin, stainless steelpcs.94.000
60-1/OCLOffset Connecting Link 60-1, American Standard, 1 row, 3/4" pitchpcs.50.000
60-1/SBRoller Chain 60-1, American Standard, 1 row, 3/4" pitch, side bowm60.000
60-1/SB/CLConnecting Link 60-1, American Standard, 1 row, 3/4" pitch, side bowpcs.147.000
60-2Roller Chain 60-2, American Standard, 2 row, 3/4" pitchm195.000
60-2/CLConnecting Link 60-2, American Standard, 2 row, 3/4" pitchpcs.50.000
60-2/DPOCLDouble Pitch Offset Connecting Link 60-2, American Standard, 2 row, 3/4" pitchpcs.100.000
60-2/OCLOffset Connecting Link 60-2, American Standard, 2 row, 3/4" pitchpcs.62.000
60-2/R/CLConnecting Link 60-2, American Standard, 2 row, 3/4" pitch, rivetedpcs.185.000
60-3Roller Chain 60-3, American Standard, 3 row, 3/4" pitchm30.000
60-3/CLConnecting Link 60-3, American Standard, 3 row, 3/4" pitchpcs.10.000
60H-1Roller Chain 60H-1, American Standard, 1 row, 3/4" pitch, havy dutym55.000
60H-1/CLConnecting Link 60H-1, American Standard, 1 row, 3/4" pitch, havy dutypcs.102.000
60H-1/OCLOffset Connecting Link 60H-1, American Standard, 1 row, 3/4" pitch, havy dutypcs.45.000
60H-2Roller Chain 60H-2, American Standard, 2 row, 3/4" pitch, havy dutym10.000
80-1Roller Chain 80-1, American Standard, 1 row, 1" pitchm50.000
80-1/CRoller Chain 80-1, American Standard, 1 row, 1" pitch, cottered constructionm10.000
80-1/CLConnecting Link 80-1, American Standard, 1 row, 1" pitchpcs.74.000
80-1/G1/CLConnecting Link 80-1, American Standard, 1 row, 1" pitch, rubber toppcs.37.000
80-1/HP/CLConnecting Link 80-1, American Standard, 1 row, 1" pitch, hollow pinpcs.368.000
80-1/OCLOffset Connecting Link 80-1, American Standard, 1 row, 1" pitchpcs.30.000
80-1/SSRoller Chain 80-1, American Standard, 1 row, 1" pitch, stainless steelm25.000
80-1/SS/CLConnecting Link 80-1, American Standard, 1 row, 1" pitch, stainless steelpcs.20.000
80-2Roller Chain 80-2, American Standard, 2 row, 1" pitchm140.000
80-2/CRoller Chain 80-2, American Standard, 2 row, 1" pitch, cottered constructionm20.000
80-2/CLConnecting Link 80-2, American Standard, 2 row, 1" pitchpcs.91.000
80-2/OCLOffset Connecting Link 80-2, American Standard, 2 row, 1" pitchpcs.39.000
80-3/CLConnecting Link 80-3, American Standard, 3 row, 1" pitchpcs.2.000
80H-1Roller Chain 80H-1, American Standard, 1 row, 1" pitch, havy dutym50.000
80H-1/CLConnecting Link 80H-1, American Standard, 1 row, 1" pitch, havy dutypcs.50.000
80H-1/OCLOffset Connecting Link 80H-1, American Standard, 1 row, 1" pitch, havy dutypcs.121.000
C10B-1/KK1X8/DRRoller Chain C10B-1, British Standard, 1 row, 5/8" pitch, straight side plate, KK attachment every 8m1000.000
C2040Double Pitch Conveyor Chain C2040, American Standard, 1 row, 1" pitchm1275.000
C2040/CLConnecting Link C2040, American Standard, 1 row, 1" pitchpcs.500.000
C2040/NPDouble Pitch Conveyor Chain C2040, American Standard, 1 row, 1" pitch, nickel platedm425.000
C2040/NP/OCLOffset Connecting Link C2040, American Standard, 1 row, 1" pitch, nickel platedpcs.100.000
C2040/OCLOffset Connecting Link C2040, American Standard, 1 row, 1" pitchpcs.98.000
C2042/HPDouble Pitch Conveyor Chain C2042, American Standard, 1 row, 1" pitch, hollow pin, large rollerm20.000
C2042/HP/CLConnecting Link C2042, American Standard, 1 row, 1" pitch, hollow pinpcs.40.000
C2042/SSDouble Pitch Conveyor Chain C2042, American Standard, 1 row, 1" pitch, stainless steel, large rollerm35.000
C2050Double Pitch Conveyor Chain C2050, American Standard, 1 row, 1 1/4" pitchm475.000
C2050/CLConnecting Link C2050, American Standard, 1 row, 1 1/4" pitchpcs.412.000
C2050/K1X2/CLConnecting Link C2050, American Standard, 1 row, 1 1/4" pitch, K1 attachment both sidespcs.6.000
C2050/OCLOffset Connecting Link C2050, American Standard, 1 row, 1 1/4" pitchpcs.99.000
C2050/SS/CLConnecting Link C2050, American Standard, 1 row, 1 1/4" pitch, stainless steelpcs.6.000
C2050/SS/M1X2/CLConnecting Link C2050, American Standard, 1 row, 1 1/4" pitch, stainless steel, M1 attachment both spcs.130.000
C2052/SS/OCLOffset Connecting Link C2052, American Standard, 1 row, 1 1/4" pitch, stainless steelpcs.90.000
C2060H/CLConnecting Link C2060H, American Standard, 1 row, 1 1/2" pitchpcs.417.000
C2060H/GK1Heavy Duty Double Pitch Conveyor Chain C2060H, American Standard, 1 row, 1 1/2" pitch, with mid pitcm260.000
C2060H/NP/GK1/CLConnecting Link C2060H, American Standard, 1 row, 1 1/2" pitch, nickel plated, with mid pitch holepcs.49.000
C2062H/SSHeavy Duty Double Pitch Conveyor Chain C2062H, American Standard, 1 row, 1 1/2" pitch, stainless stem10.000
C2080/HP/SS/CLConnecting Link C2080, American Standard, 1 row, 2" pitch, hollow pin, stainless steelpcs.16.000
C2080H/CLConnecting Link C2080H, American Standard, 1 row, 2" pitchpcs.359.000
C2100H/SS/K1X8Heavy Duty Double Pitch Conveyor Chain C2100H, American Standard, 1 row, 2 1/2" pitch, stainless stm25.000
CA550Agricultural Roller Chain CA550, 1 row, 1.63" pitchm20.000
S32/ZP/K1X2/R/CLConnecting Link S32, Agricultural Chain, 1 row, 29.21 mm pitch, zinc plated, K1 attachment both sidepcs.150.000
S38/ZP/CLConnecting Link S38, Agricultural Chain, 1 row, 38 mm pitch, zinc platedpcs.500.000
S38/ZP/SD/CLConnecting Link S38, Agricultural Chain, 1 row, 38 mm pitch, zinc plated, SD attachment both sidespcs.198.000
S42/ZP/CLConnecting Link S42, Agricultural Chain, 1 row, 34.93 mm pitch, zinc platedpcs.110.000
S42/ZP/K1X2/ILInner Link S42, Agricultural Chain, 1 row, 34.93 mm pitch, zinc plated, K1 attachment both sidespcs.11.000
S42/ZP/K1X2/R/CLConnecting Link S42, Agricultural Chain, 1 row, 34.93 mm pitch, zinc plated, K1 attachment both sidepcs.174.000
S45Roller Chain S45, Non-Standard, 1 row, 41.4 mm pitchft82.020
S45/SS/CLConnecting Link S45, Agricultural Chain, 1 row, 41.4 mm pitch, stainless steelpcs.11.000
S45/ZP/CLConnecting Link S45, Agricultural Chain, 1 row, 41.4 mm pitch, zinc platedpcs.19.000
S45/ZP/K1X2/ILInner Link S45, Agricultural Chain, 1 row, 41.4 mm pitch, zinc plated, K1 attachment both sidespcs.800.000
S52/ZP/SD/R/CLConnecting Link S52, Agricultural Chain, 1 row, 38.1 mm pitch, zinc plated, SD attachment both sidespcs.258.000
S55/RH/CLConnecting Link S55, Agricultural Chain, 1 row, 41.4 mm pitch, heavy dutypcs.200.000
S55/RH/ZP/SDF1/CLConnecting Link S55, Agricultural Chain, 1 row, 41.4 mm pitch, heavy duty, zinc plated, SDF1 attachmpcs.100.000
S55/ZP/CLConnecting Link S55, Agricultural Chain, 1 row, 41.4 mm pitch, zinc platedpcs.45.000
S55/ZP/K1X2/ILInner Link S55, Agricultural Chain, 1 row, 41.4 mm pitch, zinc plated, K1 attachment both sidespcs.150.000
S55/ZP/K1X2/R/CLConnecting Link S55, Agricultural Chain, 1 row, 41.4 mm pitch, zinc plated, K1 attachment both sidespcs.294.000
S55/ZP/RRoller Chain S55, Non-Standard, 1 row, 1.625" pitch, zinc platedm70.000
S55/ZP/R/CLConnecting Link S55, Agricultural Chain, 1 row, 41.4 mm pitch, zinc plated, rivetedpcs.100.000
S62/ZNRoller Chain S62, Non-Standard, 1 row, 41.91 mm/1.65" pitch, zinc platedm30.000
S62/ZP/CLConnecting Link S62, Agricultural Chain, 1 row, 41.91 mm pitch, zinc platedpcs.44.000
S77/K1X2/R/CLConnecting Link S77, Agricultural Chain, 1 row, 58.34 mm pitch, K1 attachment both sides, rivetedpcs.150.000
S77/OCLOffset Connecting Link S77, Agricultural Chain, 1 row, 58.34 mm pitchpcs.80.000
S88/ZP/CLConnecting Link S88, Agricultural Chain, 1 row, 66.27 mm pitch, zinc platedpcs.99.000
S88/ZP/OCLOffset Connecting Link S88, Agricultural Chain, 1 row, 66.27 mm pitch, zinc platedpcs.50.000
TOOLS/CT101Universal chain pin extractor H CT101, pitch: 1/4" – 3/4", roller chains: 05B-1 – 12B-1, ANSI 25-1 –pcs.15.000
TOOLS/CT102Universal chain pin extractor H CT102, pitch: 3/4" – 1 1/4", roller chains: 12B-1 – 20B-1, ANSI 60-1pcs.16.000
CC600/8TS/35BK/ZN/ST8 tooth sprocket to suit chain CC600, 35 mm plain bore, zinc plated, STORKpcs.50.000
CC600/8TS/50BK/ZN/ST8 tooth sprocket to suit chain CC600, 50 mm plain bore, zinc plated, STORKpcs.2.000
D162/CLConnecting Link D162, feeder breakerpcs.5.000
JKB175/A/150/BT2X300JKB175 Steel Bush Chain with BT2X300 Bolted Cleaner Flight, 150 mm pitchm324.000

It was evident that the surface hardening, which was at a very high value, was completely undermined in the worn area where the values were very low and reflected the nature of the poor pin material.

It was noted that there was an increased degree of wear on the drive side of the two strands. The unequal extension was undoubtedly a negative influence on the operation of the chain and would be the subject of further consideration.

It was already understood that the link was made from nickel chrome case-hardened steel. It was concluded that the alloy content had provided a necessary degree of corrosion resistance. The pin however was made from a mild steel EN3A, a finding that was the result of an independant investigation by the cement plant operator. EN3A is a basic mild steel and although its is carbonised to create a high hardness case, it has no alloy content and therefore has a low core hardness.

It was concluded the failures of the experience in the slat arrangement was the result of the accelerated wear of the pins and uneven pin wear between the two strands taking into account that the slats were bolted solidly to the attachments without any elasticity. The data shown in Table 1 established that there was 139.32mm of unequal extension between drive side and non-driveside. When the chain met the drive sprockets this mismatch created a sheer condition, which caused the slats to twist.

The results of the analysis highlighted two areas for consideration; 1) Examination of the pin material and heat-treatment methods to establish if any better alternatives can be selected. 2) The introduction of some elasticity in the slat fixing arrangement to compensate for any mismatch between the two strands of chain. 3) An improvement in the material of the slat to reduce weight and corrosion.

Engineering a solution

It was clear that the pin material was inadequate from the perspectives of both corrosion and abrasion resistance, although corrosion seemed to be the main issue.

John King had past experience of many similar applications and was able to confirm that it was essential that to have built-in clearance between the slat and the attachment on double strand drags such as the system at the UK cement plant. Options 1 and 3 demonstrate designs that ensure that mismatch can be accommodated without mechanical damage.

Option 1 had a spacer bush, the length being in excess of the combined thickness of attachment and the slat so when it is bolted it does not clamp solid.

[styled_image image=”https://www.johnkingchains.com/wp-content/uploads/news001-problemcement-foto05.jpg” w=”605″ h=”0″ link=”” lightbox=”no” alt=”Sample of chain parts from option 1 as shown to the cement plant operator” rel=”” align=”left” caption=”Sample of chain parts from option 1 as shown to the cement plant operator”]

[styled_image image=”https://www.johnkingchains.com/wp-content/uploads/news001-problemcement-foto06.jpg” w=”605″ h=”0″ link=”” lightbox=”yes” alt=”CAD drawing of option 1, which was selected by the cement plant operator” rel=”” align=”left” caption=”CAD drawing of option 1, which was selected by the cement plant operator”]

Option 3 incorporated a cast clevis, which is welded to the link with a swivel bolt to fix the slat. Plastic flights produced from polyethylene material were considered to reduce weight and offer corrosion resistance.

Options 2 and 4 were the same as options 1 and 3, but with plastic slats instead of metal slats.

Meeting with the cement plant operator

A meeting was arranged with engineers from the cement plant operator in order to discuss the proposals.

All four options were presented and discussed. It was recognised that the plant operator has first-hand and long experience in operation of chain systems, therefore it was understood that their opinion would be valued.

The plant operator discounted options 2 and 4, because it considered plastic slats to be too vulnerable to foreign objects entering the conveyor and causing impact damage. It was concluded by those present that option 1 with the cast clevis was more robust and offered better self-aligning characteristics. The meeting was concluded with a request for a commercial offer for a replacement chain based on option 1. A sample of chain parts was requested and subsequently an order was placed.

Conclusion

The project was completed by John King in January 2010 and the new system has since proven itself in terms of specification and construction.

Oliver Wadsworth, John King (USA) Inc.

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