Ultra-slim permanent magnetic brake

Written by: Tom Austin-Morgan | Published:

SG Transmission has launched an ultra-slim, high torque, permanent magnetic brake with a depth of less than 13mm.

The ultra-slim brake has been developed by using extremely high energy permanent magnets to obtain its high torque in a small space. The brake has a small outside diameter with a comparatively large bore through the centre for the application’s drive shaft.

The design engineers at SG were faced with the challenge of designing an efficient magnetic circuit for a robotics manufacturer where length was restricted and footprint size limited, which also incorporated the coil to de-energise the brake.

“We achieved the desired specification in a very limited time scale to meet the customer’s expectations,” said Paul Short, technical manager at SG Transmission. “Since providing this solution for the customer we have further developed the brake, after receiving a number of enquiries from customers regarding the high torque brake within a small space.”

The high torque brake is suitable for most industries including robotics, medical and military due to its inherent backlash-free construction. Additionally, it is low in power consumption which reduces heat build-up when compared to spring applied alternatives.

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