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Millmaster Chains – High Duty Central Chains for Centrifugal Discharge Elevators with Unique Double Life Construction

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The new generation mill master chains are designed for the highest duty cement and aggregate industries applications. The chain combines the proven performance of the US central strand bush chains, but incorporates a high alloy heat treated K style dismountable attachment (KD) which mounts on an extended pin retained with a heavy duty circlip. It is the bucket location that secures the KD attachment. The design allows for quick replacement in the event of damage and the potential to turn the attachment to utilise the unworn diameter of the bushing. Clearly the revolutionary double life chains have a positive impact on the cost of ownership.

Refer to John King Millmaster catalogue for our range of high capacity bucket elevators manufactured by John King in the UK since the 1950s.

Central Chain for High Output Bucket Elevators - drawing

KD attachment

Chain
Number

Attachment Style

A

B

D

F

G

I

inches

JKMM856

KD24

1.88

7.25

0.69

2.50

JKMM956

KD24

1.88

7.25

0.69

2.50

JKMM857

KD44

2.50

7.00

0.56

3.50

12.00

3.50

JKMM958

KD44

2.50

7.00

0.56

3.50

12.00

3.50

JKMM859

KD44

3.00

9.00

0.69

2.75

13.00

4.50

JKMM864

KD443

3.00

9.00

0.69

3.75

13.00

5.50

JKMM984

KD443

3.00

9.00

0.69

3.75

13.00

5.50

Millmaster Chains – High Duty Central Chains for Centrifugal Discharge Elevators

Chain

Number

Pitch

Bushings

Pins

Over-All Pin & Cotter

Between Sidebars

Sidebars

Sprocket Number

Outside Diameter

Width

Heat Treat

Diameter

Heat Treat

Thickness

Height

Heat Treat

D5

C

D6

F1

L

S

H

inches

inches

inches

JKMM856

6.00

1.75

4.00

CH

1.00

CIH

6.44

3.00

0.50

2.50

TH

856

JKMM956

6.00

1.75

4.00

CH

1.00

CIH

6.44

3.00

0.50

3.00

TH

856

JKMM857

6.00

1.75

4.00

CH

1.00

CIH

6.44

3.00

0.50

3.25

TH

856

JKMM958

6.00

2.00

4.13

CH

1.13

CIH

6.44

3.00

0.56

3.25

TH

958

JKMM859

6.00

2.38

5.00

CH

1.25

CIH

7.74

3.75

0.62

4.00

TH

859

JKMM864

7.00

2.38

5.00

CH

1.25

CIH

7.74

3.75

0.62

4.00

TH

864

JKMM984

7.00

2.50

5.00

CH

1.38

CIH

7.74

3.75

0.62

4.00

TH

984

TH: Thru-hardened, CIH: Circumferential Induction Hardened after thru-hardening, CH: Carburized.

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