Air-cooled shaft motors

Uses

Motors with air-cooled shaft are used to dissipate heat coming from an environment in which operates the motor’s rotating part. (fan, propeller, impeller). The cooling is permitted by particular dissipater placed, rotating, on the shaft , or by compressed air. They’re used with fans and with agitators for furnace or heat-treatments.

Available sizes

Motors with air-cooled shaft are available with power starting from 0,18kW up to 37kW, with speed from 750 up to 2900 rev/min, with inverter execution.

Operating temperatures

The operating temperatures of these motors start from 150°C up to 750°C for the interior working environment. Evaluations of critical speeds and maximum endurable loads by the shaft are available

Dissipater

The dissipater, usually made of aluminum, is used to waste the heat coming from the environment by blocking its flow which would be otherwise directed to the motor. For that reason, the heat dissipator is mounted between the motor and the applied load (usually an impeller) and it is equipped with fins that better dissipate the heat.