A spring engaged, air released, power-off brake has been introduced by Nexen Group, the Model I-300, designed to provide high torque for backlash-free holding and emergency stopping on indexers and positioning systems.
The I-300’s high torque and short response time ensure the shortest possible stopping distance. The brake connects to the shaft with tapered, keyless locking devices. It is normally engaged until air pressure is applied to release it.
Nexen’s patented braking element locks and holds the shaft in position without any displacement upon engagement or reversing of the load. The key feature for the I-300 being zero backlash meaning a precise holding, yet it also includes a high dynamic torque, an engagement response time of 85 milliseconds and horizontal or vertical mounting.
The model is also stackable for double the braking torque and it mounts to a bearing supported shaft.
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