Hydraulically released brake

Series 171 & 172

The Prot.act brake is specifically designed for servomotordriven presses and is used as ram holding and as emergency brake. It fulfills the requirements according DIN EN ISO 16092 as a safety brake, and stops the ram in emergency cases in shortest time (e.g. the event of a power failure).

The brake is characterized by its minimal space requirements, low moment of inertia of the parts rotating with the drive motor, and short engagement times. Thanks to its enclosed design, the brake also produces only a very low external pollution and with a minimal noise level. It conforms to the European safety standard DIN EN ISO 16092 and is largely maintenance-free. Due to friction block design, the axial mobility of the friction elements when operating the brake is possible without moving metallic contact points. On this way fretting corrosion is prevented. Thanks to the dry-running principle, no undesired residual torque develops during normal operation of the press with the brake open. The Prot.act servo is also available in two sizes that are designed for integration in front of the Siemens high-torque motors 1FW3 and 1FW4.

The Prot.act flange dimensions in size 90 and 94 if this series are exactly the same as the Siemens motor flanges, which allows a slim but compact and robust drivetrain concept.

 

Specifications:

• Torque: 3.700 Nm - 125.000 Nm
• Rotations per minute: 0 - 1,500 min^-1
• Outside diameter: 345 - 1.125 mm
• Bore diameter: 120 - 220 mm
• Length: 177 - 414 mm

 

Applications: