Braking Force: 56000N to 72000NCoil spring applied (no Belleville washer spring package)Thruster released by the powerful BUEL-SPlug and Play installation (No additional piping, no wiring, no bleeding)Compact designSintered lining materialWheel cleaning padsAdjustable setting timeEnvironmental friendly (No oil change, lifetime oil filling, intermittent operation)BUEL-S with space heaterBiodegradable oil