Spring force activated and hydraulically released brake callipers

Safety brake; 
pressure is produced by spring force, opening with oil pressure

DV 20 FHM

+ braking torque 180 - 610 Nm (depends on disc)
+ for assembling parallel to the disc
+ manual adjustment to counter  friction block wear
   

DV 30 FHA

+ Bremsmoment 640 - 2200 Nm (depends on disc)
+ for assembling parallel to the disc
+ automatcally adjustment to counter  friction block wear

   

DH 30 FHA

+ Bremsmoment 640 - 2200 Nm (depends on disc)
+ for assembling square  to the disc
+ automatically adjustment to counter  friction block wear