Twiflex brakes are fully assembled, provide high levels of reliability, easy electronic monitoring and maintenance, and come with organic or metallic linings. Friction liners are sized to ensure adequate heat dissipation during an emergency stop and with an even pressure distribution across pad surfaces.

The brakes come in a range of braking forces from 100 N to 1 MN to meet the torque requirements of the most common turbines. Rotor-brake models include the GMR (15 to 35 kN), the VCS (20 to 60 kN), and the VKSD (50 to 119 kN). VCS and VKSD brakes are available as standard and floating models. Floating, single-sided brakes are mounted on sliding bushings to save space.

Twiflex spring-applied, hydraulically-released, caliper brakes are typically mounted to a turbine’s ma

Twiflex Model GMR-SH disc calipers generate a braking force of 35 kN. The line includes three models to generate braking forces of 15 to 119 kN.

in rotor shaft, between gearbox and generator, and used primarily as safety brakes during emergency stops under high wind conditions. All units are engineered to handle the large output torque generated by the high ratios found in wind-turbine gearboxes. The brake models are in operation today on hundreds of wind turbines around the world. Twiflex is a member of the Altra Industrial Motion family of power transmission companies.