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Round Link Steel Chains and accessories

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Round link steel chains have become a proven standard in mining and have developed in the coal mining industry along with Long wall mining, a highly effective means of extraction, since the 1960s. Armoured face conveyors require a chain that will run over long distances and offer flexibility in operation. The main standard is covered by DIN 22252.

Round Link Steel Chains
Nominal size	Diameter		Pitch		Width		Gauge Length
d x t	d	Tolerance	t	Tolerance	Inside b1 min	Outside b2 max	5 x t	Tolerance
14 x 50	14	±0.4	50	±0.5	17	48	250	±1.0
18 x 64	18	±0.5	64	±0.6	21	60	320	±1.0
19 x 64.5	19	±0.6	64.5	±0.6	22	63	322.5	±1.0
22 x 86	22	±0.7	86	±0.9	26	73	430	±1.0
26 x 92	26	±0.8	92	±0.9	30	85	460	±1.0
30 x 108	30	±0.9	108	±1.1	34	97	540	±1.2
34 x 126	34	±1.0	126	±1.3	38	109	630	±1.3

Elongation at test force 1.6% max. Total elongation at fracture 14% min. Fatigue test 70,000 cycles min.

Round Link Steel Chains
Nominal size	Reference number	Test force	Breaking force WF DIN	Operating force WF DIN	Breaking force WF DIN+	Operating force WF DIN+	Bend test deflection	Weight
d x t	TH	Min kN	Min kN	Max kN	Min kN	Max kN	mm	kg/m
14 x 50	1450TH	185	246	154	–	–	14	±1.0
18 x 64	1864TH	305	407	254	460	287	18	±1.0
19 x 64.5	1964TH	340	454	283	510	318	19	±1.0
22 x 86	2286TH	456	608	380	680	425	22	±1.0
26 x 92	2692TH	637	850	531	960	600	26	±1.0
30 x 108	30108TH	848	1130	707	1270	795	30	±1.2
34 x 126	34126TH	1090	1450	907	1640	1026	34	±1.3

Round Link Deep Case Hardened Chains

For use with abrasive material, or where excessive friction occurs case hardened chain may increase operational life considerably over that of standard chains.
Based on DIN 22252:2001 Round link steel chains. Additionally proof loaded and tested.

Round Link Steel Chains
Nominal size	Ref. Number	Pitch nominal	Width		Test force	Breaking force	Weight
Nominal size		Pitch nominal	Inside min.	Outside max.	Test force	Breaking force	Weight
d x t		mm			min. kN		kg/m
14 x 50 CH	14/50/CH	50	16.5	47	74	128	4.1
16 x 64 CH	18/64/CH	64	20	55	96	160	5.1
19 x 75 CH	19/75/CH	75	22	63	135	225	7.6
22 x 86 CH	22/86/CH	86	26	75	183	304	9.5
26 x 100 CH	26/100/CH	100	31	87	255	425	13.3
30 x 120 CH	30/120/CH	120	36	101	340	566	17.5
34 x 136 CH	34/136/CH	136	39	113	425	710	23.8

Proof Strength 240 N/mm2, Breaking Force 400 N/mm2, Surface Hardness 800HV 40, Carburizing Depth 0.09d, Hardening Depth 0.05d, Material: chrome-Nickel Alloy Steel, All dimensions in mm.

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Round Link Steel Chains and accessories

Get in touch with the team today.

Round Link Deep Case Hardened Chains

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