Our collection of Pfaff Silberblau Hand Operated Gearboxes can be used as a rotary actuator, as a gearbox for cable winches or as a gearbox for chain drives. Easy and safe operation. Load is held securely due to self locking worm gear which are suitable for a large variety of applications in construction. Enclosed housing for the protection of parts inside. Available with a cast iron or diecast aluminium housing.