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RI

Rolex Industries
location Sakinaka, Mumbai, Maharashtra

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Our Products

  1. Brakes & Braking Systems 3 Products available

  2. Switches And Switch Boxes

    2 Products available

  3. Crane Spare Parts

    2 Products available

  4. Process Control Systems & Equipment

    1 Products available

  5. Storage Drums, Tanks & Containers

    1 Products available

  6. Automotive Brakes

    1 Products available

  7. Coupling

    1 Products available

  8. Barrels

    1 Products available
  9. Others Products 3 Products available

Brakes & Braking Systems

Our product range contains a wide range of Thruster Brakes, Electro Magnetic Thruster Brakes, Thruster Brake, Hoist Brake and Thruster Operated Drum Brakes

Thruster Brakes

Thruster Brakes
A thruster shoe brake has a pair of cast iron shoes which are lined up with friction pads. The shoes are hinged on main arm and side arm of the brake, each of them have a hinge pin fitted in the base. They are connected to each other on top by a tie rod, which is hinged in the main arm and locked to the swivel block in the side arm, by a lock nut. A crank lever is hinged on the main arm and the other end is fixed to the top clevis of the thruster by a hinge pin. A brake spring is fixed on the main arm and is pre-loaded by a locknut on the lever. The pre-tension in this spring decides the braking torque. The thruster is fitted on the base by a hinge pin. When the thruster is not energized, the brake shoes are pressed on the brake drum fitted on the drive motor shaft and hold it under the effect of braking force provided by the spring. In such condition, the brake is applied and the drum cannot rotate. 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. When the first lever reaches the stop on the brake base member the brake lever at the thruster begins to move, releasing the brake drum. Technical Specification
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Electro Magnetic Thruster Brakes

Electro Magnetic Thruster Brakes

For infallible operation of machinery, modern methods are necessary, any machines which requires its motion to be controlled, whether it is lifting Crane, Hoist, Wintch or Mining Haulage today employs an Electro Magnetic Brake, enabling the operator not only to control the motion but also to hold the load at any desired point without danger of falling, merely by release of the starting handle. Electro Magnetic Brake is adequate equipment for safer operations of machinery.Electro Magnetic Brakes are used when a load must be stopped rapidly to prevent it from roatating.These brakes are used in Paper Mills, Drives of certain Textile Machines, Sugar Mill Machinery, Rubber Mixing Mills.

Assembly and Function :

The shoes are of cast iron and other components are of fabricated steel. The lever is hinged on main arm, which is connected to the side arm through a tie rod, and is stress by pre-loaded compression spring. The compression of spring can be adjust to set the braking torque to desired value. The brake liner of selected quality material is reveted to the shoes by aluminium rivets.A.C. solenoid with laminated magnetic sheet steel houses a copper magnetizing coil which is impregnated with class F materials. The plunger which is connected to the lever, is drawn into the coil, when it is energised with A.C. source. This loads the spring and releases the brakes shoes from brake drum. When the supply is cut off, the plunger is pull out of the coil, and spring force clamp the brake shoes on the brake drum and the brake is applied.
A.C. Drum Brakes are suitable for single phase A.C. supply up to 440V and are available for drum diameters of 100 mm to 380 mm and braking torques up to 69 kg-m.

Features :

- Compact design- Fail Safe- Reliable in operation- Clean work environment- Braking Torque can be easily adjusted- Requires less maintenance

Brake Model No. Drum Diameter (mm) Braking Torque (KG m) Length (maximum) Width (maximum) Hight (Maximum)
RI-EMB-100 100 1.84 370 155 275
RI-EMB-150 150 6.50 435 155 305
RI-EMB-200 200 15.00 575 175 370
RI-EMB-250 250 19.30 655 175 460
RI-EMB-300 300 38.50 765 200 530
RI-EMB-380 380 58.60 850 200 645
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Thruster Brake

Thruster Brake

Thruster Brake is a device used to retard the speed of moving machinery and to stop it accurately to the desired position. The braking force is applied to the brake shoes by a pre-stressed comprising spring. The shoes press on the rotating brake drum retarding its speed and finally stop it. The releasing of the brake drum and compressing of the spring is done by thruster.

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