The cast iron body electric motor offers high durability against demanding operating conditions thanks to its grey cast iron housing. On industrial lines where impact, vibration and continuous load combine, the frame material directly determines motor life. DRG Motor supplies these motors across a range of power and efficiency classes.

Why a Cast Iron Body?

Cast iron is more rigid and heavier than aluminium, which dampens vibration and provides resistance to mechanical shock. The frame's resistance to flexing helps preserve the rotor-stator air gap and lets the bearings carry load evenly.

Performance in Harsh Settings

IP55 protection keeps dust and water jets out, while Class F insulation withstands high winding temperatures. These traits make cast iron motors well suited to crushing-screening, cement, mining and heavy pump applications.

Cast Iron versus Aluminium

An aluminium frame is advantageous in light-duty applications for its low weight and heat conduction; a cast iron frame stands out in heavy duty where durability and vibration damping matter. The choice should follow the severity of the environment and the expected service life.

DRG Motor for Cast Iron Body Motors

DRG Motor offers cast iron frame motors from 0.55 to 355 kW in IE3 and IE4 efficiency classes with B3/B5/B14 mounting options. Contact us for the model that matches your application's load profile.