In cranes / hoisting machinery, brakes are intended for controlling the speed of load, lowering or for holding the suspended load at rest
Speedage mill duty Thrustor Brakes are suitable for 400/440 Volts, 3 Phase A.C. supply for a wide range of drum sizes, from 100mm to 600 mm dia. Higher sizes can also be supplied against specific requirements.
The brake is applied by the tension of the compressed springs mounted vertically between the thrustor and brake lever. The thrustor rods are connected with the brake by means of an angle lever. As the piston travels upwards the angle lever turns, pushes the brake rod and compresses the brake spring. Simultaneously, the brake lever on the other side of the wheel (Brake Drum) is retracted. The brake lever at the thrustor begins to move when the first lever reaches the stop on the brake base member
The thrustor and the brake are so adjusted as to reserve about 1/3 of the stroke for compensation of the wear of the brake linings.
Special applications :
‘Speedage Engineers’ supply special application brakes to suit customer’s own requirements. These include:
Manual apply drum Brakes – No electricity required, brakes are applied manually using a hand wheel.
Thrustor Brakes can also be provided with asbestos free Brake liners.
Reverse action Thrustor Brakes – used for large fan and ventilation applications, where the brakes are used only for maintenance or in an emergency
Whatever your requirements, please contact us to discuss how we can develop our brakes for your applications