maxon motor 300 V brushless DC motor

A range of brushless DC motors designed to operate on a 300 VDC supply is now available from maxon motor Australia. From a diameter of only 32 mm, the unit is capable of power levels of 480 W, speeds up to 12,000 rpm and can operate submerged in oil at up to 200°C.

The 4-pole layout achieves a power density of under 2 g/W and is constructed of a laser-welded stainless steel case and flanges. Laser welding continues inside the motor with an encapsulated rotor and weld seams at the bearing seats and shaft collars. The motors bearings are left open without shields to allow for the flooding with oil.

Capable of withstanding high vibration and extreme pressures, the unit is suitable for oil and gas applications and subsea applications, and there are also variants for use in a vacuum.