Customised motor delivered in four weeks

maxon motor recently delivered a customised low-voltage brushless DC motor to a customer requiring a robust motor for a drilling tool operation.

The brushless motor is a heavily modified version of the 45 m 250 W 24 V catalogue brushless motor. The entire rear section of the motor was modified to meet the exact dimensional requirements of the application.

The catalogue version of this motor has a radial cable exit and a radial extension of the cable glands. This radial cable exit can interfere in applications where the motor needs to be fitted inside a pipe or other round tube space.

maxon was able to produce drawings of the modified design within two days and, after customer approval, the motors were manufactured and delivered in four weeks.

The rear cable housing, gland and sealing were not the only parts of the motor that were modified. The drilling application sees the motor sprayed with high-pressure jets of water. To protect against this, the front motor bearing was fitted with rubber seals.

To keep the electronic components and motor speed control unit well away from the harsh environment, the cables also needed to be manufactured with a specific length, connection and shielding.