1.1. Rotor brakes

1.1.1 Failsafe brakes

Failsafe brakes are emergency brakes, that is, they use the pressure to keep the brake open. If the pressure disappears, due to a voltage drop, the brake closes. Braking is achieved by springs.
Its main characteristics are:

  • Monospring brakes: they only have one spring pack. This reduces the volume of the brake and allows an axial movement of the braking disc
  • Spring applied and hydraulically released

NHC-900 SERIES (NHC 917 – NHC 925 – NHC 931 – NHC 937 – NHC 947 – NHC956)
Its main technical characteristics are:

  • Clamping force up to 60.000 N and maximum pressure of 210 bar
  • Monospring emergency brake
  • Self-aligning: the position of the brake adjusts itself with regard to the disc
  • Spring applied braking
  • Hydraulically released

Options

  • Open brake switch indicator (CSA)
  • Lining wear indicator (DD)
  • Automatic lining wear adjustment (RA)
  • Sintermetal linings

NHC 900 Brake Motor
NHC-1400 SERIES (NHC 1407 – NHC 1409 – NHC 1411 – NHC 1413 – NHC 1415)
Its main technical characteristics are:

  • Clamping force up to 150.000 N and maximum pressure of 210 bar
  • Monospring emergency brake
  • Self-aligning: the position of the brake adjusts itself with regard to the disc
  • Spring applied braking
  • Hydraulically released

Options

  • Open brake switch indicator (CSA)
  • Lining wear indicator (DD)
  • Automatic lining wear adjustment (RA)
  • Sintermetal linings

NHC 1400 Frenos Motor