A passive failsafe brake for wind turbine rotors, delivering braking force of 27,000 N and suitable for harsh environments. It features an automatic wear adjustment (AWA) system that maintains a constant small air gap between the brake pad and disc to ensure fast response and braking times.


  • Spring applied and hydraulically released failsafe disc brake
  • Braking force up to 27,000N
  • Large brake pad area and lower brake pad disc for extended brake pad life
  • Automatic Wear Adjustment (AWA) System maintains a constant small air gap between the brake pad and disc, for quick response time and fast braking
  • Sinter brake pad suitable for high speed or high torque braking occasions
  • Floating axles
  • Easy mounting using only 4 x M20 screws only, for reduced installation costs
  • Drain ports for hydraulic oil leakage, preventing oil from getting on the brake disc, for maximum safety
  • Easy to install and maintain with very few moving parts, easily removable pads and pad holders
  • Suitable for damp, dusty and corrosive working environments
  • Working temperature range down to -40°C


  • Hydraulic power unit
  • Brake pad with different material
  • Brake pad wear and on/ off indicator
  • Temperature sensor

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Shaping the future – a passive market

"Time and time again, we've shown how our customers' individual needs have inspired us to develop innovative solutions and bring them to market. But what if the conditions of an entire market change? Well, we handle it in exactly the same way. If you can read market indicators, then we'll soon agree on one thing, the future of our industry is ‘passive’. And we won't sit back, that's not in our nature – we've made a clear commitment to the development of effective and purposeful technologies to meet these changing market needs. This is no secret but reality, at least as far as we are concerned.

Kai Kölker, Vice President and Head of Wind Division

Wind Division

Marler Straße 129a
46282 Dorsten

Global wind sales

+49 (0)2362 / 4009-0


+46 23 78 30 55