As a propeller shaft specialist, we continue to develop our products. For example, the market asked for a strong improvement of the traditional wooden block brake. After intensive research, De Waal found the solution.
A brake consisting of two claws that clamps itself around the propeller shaft absolutely slip-free by an ingenious hinge movement. The Stuwa® propeller shaft brake is universal and can be used by any shipyard. Meanwhile, this product is most commonly used in inland shipping and is also available for other markets. Moreover, the brake system is designed so that no radial or axial load is applied to the shaft.
Slip-free
With a hinge assembly connected on one side to the motor foundation, the brake is mounted around the torque flange. An adjusting screw is then used to precisely set the brake's 'free position'. By now using a hydraulic pump to force one caliper out of position, the propeller shaft is firmly clamped on both sides by means of the hinge movement. The strong calipers, finished with a thick layer of brake lining material, ensure an absolutely slip-free propeller shaft.
The Stuwa propeller shaft brake.
Montage
To create the greatest possible braking torque, it is best to mount the brake directly around the torque flange. If this is not practically possible, the brake can also be fitted around the propeller shaft itself. For the latter version, the model with demountable calipers should be ordered.
Simple operation
The Stuwa propeller shaft brake comes complete with a hydraulic hand pump as standard. This can be mounted at any, easily accessible, location in the engine room. An electrically driven pump set is optional. This can be operated via a switch in the engine room or even upstairs, from the wheelhouse. How luxurious can you get?
The Stuwa® propeller shaft brake is universal and can be used by any yard.
Most commonly used application
The Stuwa© brake is most commonly used when anchored on flowing water or on a twin-propeller that is 'drifting'. This is because reversing clutches are not built to be driven 'the other way round' by fast-flowing water past the propeller. Lack of lubricating oil can cause serious damage to the gears. Moreover, when the ship is stationary, a rotating propeller can cause an annoying noise.
