• Walpha Engineering

Thruster Brakes

Walpha Engineering offers Thruster Brakes. Electromagnetic Brakes: Suitable for AC supply up to 400 to 440 volts, and are available for a wide range of Drum sizes from 100mm to 380mm diameter. Available with a rated torque ranging from 200 Kg cm for the smallest Brake (100 mm diameter) up to 6900 Kg cm for a 380 mm diameter at 50 % coil Rating i.e. the coil remains in circuit for a maximum of 5 min out of every 10 min. Conventionally termed as single phase Electromagnetic brakes. When specified, Brake Drum or Brake Drum coupling both PIN BUSH type and FLEXIBLE GEARED type can be supplied along with the Brakes.  Electromagnetic Thruster Brakes: Mill Duty Thruster Brakes are suitable for 400/440 volts, 3 phase AC supply for a wide range of drum sizes from 100mm to 600mm dia. Release of the Brake Shoe is effected by energizing the 3 phase Thruster which over comes the spring force and the shoes are moved clear off the Drum by lever/arm linkage system so that the drum is free to rotate without any friction. The angle of the Brake shoe being 70 degree makes the replacement and maintenance of the Brakes shoes easy at site. The Thruster is a self contained unit and comprises of a centrifugal pump and impeller driven by an Electric Motor. The impeller spins in oil and develops a pressure heard which is impressed upon the piston which is directly coupled to the load lifted.