MagnaShear Electric Release Spring Set Motor Brakes
Available for Marine Duty, Washdown, Hazardous Duty and Low Temperature Applications

The Ideal Upgrade for Winches, Cranes, Loaders, Trippers, and Palletizers
Dynamic Stopping Brakes – Not Just Holding Brakes

Designed with Oil Shear Technology the MagnaShear Motor Brakes typically mount to the back of a brake motor. They are designed to be a stopping brake, not just a holding brake.

Oil Shear Technology allows the brake to dynamically slip to a stop without wearing friction material and the fluid circulating through the brake friction stack moves the heat of engagement to the housing to be cooled. This allows the brake to operate at a constant torque for many years without adjustment, or maintenance.

They can survive the harsh environments of mining, manufacturing, material handling as well as packaging and food processing with minimal maintenance and no adjustment. The totally enclosed rugged housings keep dirt and moisture out while reducing noise and extracting heat.

Dry friction brakes are typically designed as holding brakes. Using them for dynamic stopping wears friction material away causing constant adjustment and frequent replacement of discs, pads, or shoes.

“Oil Shear Technology,” perfected over 50 years by Force Control Industries, provides the brake with up to 10 times the normal life of dry friction units with minimal maintenance and “No Adjustment – Ever”.

Features of a MagnaShear Brake

• Spring set electrically released - 115 VAC through pulse width modulation for reduced heat and energy cost. Simple transformers are used for alternate voltages. Some DC actuation is available.
• Direct acting coil eliminates small linkage parts to corrode, hang up, or fail.
• Multiple disc design for high thermal capacity and low rotating inertia
• Oil Shear Technology for smooth cushioned stops, minimal wear, no adjustment required, superior heat dissipation and consistent accurate stopping
• Heavy duty totally enclosed sealed housing for protection in severe dusty, dirty, or wet applications.
• Quick mount clamped split quill for superior 360º shaft connection minimizing key and keyway problems.
• Optional wash-down and marine duty designs
• Custom flange designs for IEC, reducer mounting, or old crane retrofits.
• Manual release, optional release indicator switch, heater, encoder shaft,
• Quick mount design installs in one piece. No assembling parts on the motor, small parts to drop, covers to remove for adjustment.

Up to 10 times longer life Electric Release, Spring Set Minimal Maintenance Cost No Adjustment – Ever! New “Quick Mount” Design Up to 80% Lower Inertia

Dust, Dirt, and Moisture Proof Washdown and Marine Duty Standard or Custom Mounting Split Quill with Clamp Collar or Keyway Shaft Connection Up to 50% Lower Cost per Index

Oil Shear Technology - No Adjustment No Maintenance

 

MagnaShear Brake Typical Applications

Lumber Mining Packaging Palletizing

Concrete Blocks Coal Sampling Production Machines Automotive

 

 

True Dynamic Brake
          Long Life—5 to 10 Times Longer
                   No Adjustment—No Maintenance

 

How They Work

Oil Shear Technology

 

Torque 6 Lb. Ft. to 1250 Lb. Ft. Fits NEMA Frame 56 to 440 motor frames. Spring Set – Electric Release IEC and Custom available Clamped-Split-Quill saves motor shaft and keyway Wash Down, Marine Duty, Severe Duty Manual Release, lock out, and released indicator available Can also be furnished as an assembled brake motor.

 

Selection

Specifications

Dimensions

How To Order

Options and Accessories

• Manual Release – Designed to allow manual release of the brake when power is off. This allows movement of the machine for maintenance purposes while the power is locked out. The MSB4 and MSB6 have two levers on either side. Both must be turned to fully release the brake. The larger brakes have one large handle on the back.
• Manual Release Indicator – indicates that the brake has been manually released
• Wear Indicator Sensor – Indicates when the brake has reached maximum friction disc wear
• Stub shaft – shaft extended out the back of the brake for  encoder mounting
• Splined Quill – splined quill for connecting to special splined motor or reducer shaft.
• Voltage Step down Transformers – required if brake control power is not 115 VAC. Many voltages can be used such as 240, 480, 390, 575, and DC.
• Marine Duty – Similar to washdown this option is for use on boats, barges offshore rigs, or waterfront loading facilities and ports exposed to fresh or salt water.
• All of the items  included in the washdown option are included as well as bio degradable fluid.
• Washdown - All units an be furnished with food grade fluid USDA-H2 for applications where standard fluid may be objectionable. This could be in food processing, or around water.

MagnaShear Brake Typical Applications

Manual Release – Designed to allow manual release of the brake when power is off. This allows movement of the machine for maintenance purposes while the power is locked out.

Manual Release Indicator – indicates that the brake has been manually released. This is used as a safety precaution to indicate when the brake is no longer holding the load.

Oil Shear Technology - When Reliability is Important

Splined Quill – Especially when doing a retrofit on a crane a splined shaft is often used and requires a splined quill. Force Control Industries can make splined quills with a drawing or by making a mold of the existing spline.		Stub shaft – There are times when an encoder is required especially with VFD drives. The optional shaft extension out the back of the brake is ideal for mounting an encoder.
Voltage Step down Transformers – required if brake control power is not 115 VAC. Many voltages can be used such as 240, 480, 390, 575, and DC.		Marine Duty – Similar to wash-down this option is for use on boats, barges offshore rigs, or waterfront loading facilities and ports exposed to fresh or salt water.