Construction machines and large industrial plants rely on the steady, continuous power of high-power electric motors. While crushers, large pumps, main conveyors and mills draw power in the hundreds of kilowatts, the motor must withstand impact loads and sustained full load. DRG Motor supplies cast iron housed motors up to 355 kW in this segment.

Why High Power Calls for Cast Iron

In high-kW motors the heat and mechanical forces generated are large; the cast iron housing provides rigidity against these forces and dissipates heat over its wide surface. Although heavier than aluminium, it markedly improves mechanical stability and vibration damping under heavy-duty service.

The Relationship of Speed, Poles and Torque

Construction machinery mostly favours 4-pole 1500 rpm and 6-pole 1000 rpm motors. Lower speed delivers high torque directly, making it easier to bring heavy loads into motion. The breakdown-torque margin ensures the motor keeps running without stalling in impact applications such as crushers.

Construction Built for Continuous Duty

These motors run in S1 continuous duty with IP55 protection and Class F insulation. Large bearings and precise balancing let the heavy rotor turn without vibration over long periods. In dusty, humid field conditions, IP55 protects the winding from external factors.

The Right Motor for High kW

At high power, incorrect sizing leads to both energy waste and early failure. DRG Motor supplies from 0.55 to 355 kW, offering the right power, pole count and housing type for your machine or plant from its İzmir-based facility; we can plan it together according to your application.