Built to handle extreme crowd forces while maintaining smooth, controlled dipper movement

Driving Digging Power with Precision

ITAMCO manufactures precision crowd pinions for large mining rope shovel. These components drive the crowd motion of the dipper, enabling smooth extension and retraction under load.

Engineered to handle high torque and shock in demanding mining environments, each pinion is built for continuous-duty performance—delivering reliable power transmission and durability critical to maintaining fast cycle times and overall productivity.

ITAMCO crowd pinion sizing for a mining rope shovel.

Sizing

20

Operations

39

People Involved

2

Per Shovel

Where it Goes

Close-up of a pulley and cables on the excavator arm, highlighted by a blue circle and arrow.

The pinions, installed within the swing system, engages with the large ring gear to rotate the upper structure of the shovel. They enable controlled, precise movement of the boom and dipper for efficient digging, positioning, and loading operations.

Mining Rope Shovel

1160 kVA​
Crowd Motion​​

55 FT 2 IN​
Cutting Height

78 FT 8 IN​
Cutting Radius​

110-120 ST
Nominal Payload

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