For crusher suppliers, choosing the electric motor is an engineering decision that directly shapes the durability and uninterrupted field performance of the whole machine. In jaw, impact and cone crushers the motor must withstand sudden load swings, high starting torque and a dusty environment at the same time. DRG Motor supplies three-phase induction motors selected specifically for these conditions to crushing-and-screening plant builders.

The Loads a Crusher Motor Faces

Because the feed size entering the crushing chamber changes constantly, the motor shifts from full load to no load and back many times per minute. For this reason motors are usually specified not at high speed but in a 4-pole 1500 rpm or 6-pole 1000 rpm configuration with a wide torque reserve. In a flywheel-assisted drive the starting torque must be high enough to free jammed material and resume rotation.

Cast Iron Frame and Protection Class

Field vibration and impact eventually cause fatigue cracks in an aluminium frame, so cast iron frames with IP55 protection are standard for crusher duty. Class F insulation keeps the windings within a safe temperature range in summer heat and under long S1 continuous operation. Sealed bearing housings that resist dust ingress noticeably extend service life.

Serial Supply to OEM Builders

Firms that build crushers want consistent-quality motors from a single supplier across machines of different capacity. DRG Motor offers frame sizes from 0.55 kW up to 355 kW in standard IEC mounting types (B3 foot-mounted, B5 flange-mounted), providing options that fit the machine housing exactly and removing assembly-line delays caused by mismatched parts.

The Right Motor for a Crusher Supplier

With its İzmir-based manufacturing, DRG Motor evaluates power, pole count and efficiency class (IE3 Premium and above) together for each crusher model. Share the drive type, pulley diameter and duty cycle, and we plan both a motor that matches your torque curve and continuity of spare parts.