High-torque, Spring-engaged, Power-off Brakes

Servo Motor Brake Nexen has an Eclipse brake for every servo motor. Flanges range in size from 57 mm [2.25 in] up to 265 mm [10.43 in] square with shaft diameters from 6,35 mm [0.25 in] up to 48 mm [1.89 in].
Brake torque is four times that of servo motor internal brakes and ranges from 2,25 Nm [20 in-lb] to 125 Nm [1100 in-lb].
These low inertia brakes provide the holding power needed for every application.

AC Motor Brake, NEMA and IEC flanged
Nexen’s motor brakes mount directly to the face of NEMA motor frame sizes 56C to 254TC and IEC motor frame sizes 80 to 132 M.
These holding brakes provide torque up to 125 Nm [1100 in-lb].

Linear Stage Brake
The Eclipse Stage Brake mounts to support end of a ball screw or belt drive linear stage. The brake is available in NEMA 23, 34 and 42 frame sizes with holding capacities up to 22 Nm [200 in-lb] torque.

Linear Motion Brake
The Linear Motion Brake is designed for holding applications for linear motors and belt drive or ball screw linear motion systems.
The brake has a holding force of 222 N [500 lbs] and is available in travel lengths up to 1600 mm [63 in].

Nexen Spring-engaged, Air-released Products
Emergency stop, spring-engaged brakes to fit every servo, stepper or alternating current motor up to 20 horsepower.
Eclipse brakes are designed to match NEMA and IEC flange and shaft dimensions.

Cool Operation
Holding brakes are typically disengaged with air or electricity.
Brakes using air have several times more torque than similar sized electric brakes. When electric brakes remain disengaged for long periods of time, the electric coil is on and consuming energy. This energy, in the form of heat, is absorbed by the brake and can rob the brake of efficiency when it’s called on to stop and/or hold the load. Conversely, when an air brake remains disengaged, a small amount of compressed air is dead-headed into an air chamber keeping the springs from engaging the brake. No energy is consumed and the brake remains cool until it is applied which dramatically reduces the chance of brake fade (loss of torque).