|
Material
Base in ductile cast iron for type ODB1 and ODB2. In welded steel for ODB3. Arms and levers in laser-cut steel St52.3. All pivot pins in stainless steel working on self lubricated bushings. Surface protection through zinc plating, epoxidic primer and finish paint RAL 7031. Other finish colour possible without surcharge.
Easy removable low cost asbestos-free brake pads which can be quickly replaced without having to remove pivot pins. Adjustable brake torque with square spring tube provided with graduated scale. Symmetric opening of the brake’s arms through a proper device.
Optional
DRAG. Automatic lining wear compensator. It provides for automatic re-adjusting of shoe clearance. It acts progressively with lining wear through a free wheel device. It is very useful in heavy braking applications to reduce maintenance rate. It also maintains the brake at its proper operating torque.
Micro-switch signaling “BRAKE RELEASED”. It advises that the brake is duly released. The signal usually lights a led on the operator’s push-button panel. Its role is preventing damage caused by using the crane with set brake.
Micro-switch signaling “LINING WORN OUT”. It issues an electric signal as the 2 brake’s arm approach too much to each other on account of worn linings. It is very useful as it advises, whenever the linings have to be replaced, thus preventing the jaws to damage the disc surface. It is mostly employed along with the automatic lining wear compensator.
Hand release lever. It enables the manual release the brake in power blackout. It is mainly employed to speed up lining replacement or maintenance operations. The symmetric layout of the lever makes easy the release of the brake, without inducing any deflection in the frame work.
Lining in sintered bronze. For application with high environmental temperatures or high speed.
Thrustors with delay valve. The lifting and/or lowering piston’s movement can be slowed down by means of an easily adjustable valve.
Thrustors in HR-design. The Heat Resistant design is required in extremely hot environments, such as casting cranes, where temperature may reach 100°C for some minutes.
Braking disc with hub and coupling
|