A low-power cast iron frame motor suits applications that operate between roughly 0.55 and 11 kW yet demand a far sturdier housing than aluminium alternatives provide. The cast iron frame dampens vibration and resists mechanical impact, giving even small-output motors a long service life.

Why Cast Iron Matters at Low kW

Aluminium-framed motors are light, but on conveyors, mixers and pumps that produce constant vibration the cast iron frame makes a clear difference. The mass of the casting reduces resonance, holds the bearing seats in shape for longer and lowers the risk of cracking under external knocks. That is why many plants choose cast iron even in the 0.55–11 kW band.

Speed, Mounting and Protection Options

Low kW cast iron motors are offered in 2-pole (3000 rpm), 4-pole (1500 rpm) and 6-pole (1000 rpm) versions. The mounting can be B3 (foot-mounted), B5 (flange) or B14 (face) depending on the drive. IP55 protection guards against dust and splashing water, while Class F insulation leaves a safe thermal margin for continuous S1 duty.

Typical Applications

These motors drive small geared units, dosing pumps, fan impellers, packaging machines and workshop tools that need modest power but run continuously. The heat dissipation of the cast iron body helps the motor stay at a stable temperature even in confined enclosures.

Choosing the Right Low kW Motor with DRG

DRG Motor, a supplier based in Izmir, supplies low kW cast iron frame motors built for 400 V / 50 Hz networks. We help you fix the power, speed and mounting type to match your application; share your required values and we will confirm the correct model together.