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[post_content] => Like the Hysteresis Brake, the Magtrol Hysteresis Clutch develops torque strictly through a magnetic air-gap, ensuring an absolutely smooth transmission of torque from the drive unit to the driven element. Designed to be powered without the use of brushes or slip rings, and being a pure hysteresis device, there is never any fear of contamination due to wear particles or leaky seals. This makes Magtrol Hysteresis Clutches and Brakes ideal for use in food processing and clean room environments.
[post_title] => HCF Series - Hysteresis Clutches
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[post_content] => For many years Magtrol has designed Hysteresis Brakes with large bores, and without a shaft or bearings. These brakes are used for superior tension control for helical wrapping, braiding and other feed through applications. Magtrol Large Bore Brakes are used in machines for manufacturing cable, wire, fiber optic cable, rope and tape, among others. Magtrol Large Bore Brakes provide smooth, repeatable torque, largely independent of speed. Maximum speeds up to 8000 rpm are available.
These brakesconsist of two primary parts: a pole/case assembly and a rotor. The pole/case assembly is usually mounted in a stationary position within the machine, while the rotor is shaft mounted concentrically within the pole/case assembly.
The pole/case assembly and rotor are available are manufactured in standard bore sizes and hole patterns. Variations to the standard dimensions can be made based on customer requirements. Certain modifications to the brake, such as a larger bore dimension, may impact its performance ratings. Additional options available include rotor mounting flanges, power supplies, torque-current curves and other coil voltages. Contact Magtrol for more information.
Operating Considerations
Alignment Notes
-
- The pole/case assembly and the rotor are shipped as separate items.
- It is the responsibility of the machine designer to assure proper alignment of the mating brake parts in the final assembly.
- These components must be mounted so that the concentricity and perpendicularity between the rotor and pole does not exceed the specified tolerances.
- Refer to individual LB model drawings for further details.
Additional Information
At the standard bore diameters, actual brake torque at rated current will normally exceed the minimum guaranteed values. Larger bore diameters can be provided, however, reductions in performance will result as bore diameters are increased. Any modification to a large bore brake should be reviewed in detail with Magtrol before ordering.
[post_title] => LB Series - Large Bore Brakes
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[post_content] => Since 1953, Magtrol has created literally thousands of special and modified brake and clutch designs to help solve specific application problems for our customers.
Common Specials and Modifications Include:
- Non-Standard Coil Voltages
- Special Shaft Configurations: keyways, flats, holes, hollow
- Extended Shafts
- Forced Air Cooled Brakes
- Adjustable Permanent Magnet Brakes
- Speed Pickups
- Special Mounting Configurations
- Nonstandard Lead: material, lengths, location
- Higher Torque Devices
- High Speed Units
- Brake/Clutch Combinations
- Dust Covers
[post_title] => Hysteresis Device Special Designs & Modifications
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[post_content] => Magtrol Hysteresis Permanent Magnet Brakes and Clutches are ideal in applications where electrical power cannot be provided to a brake or clutch coil. While best suited to applications where fixed torque is to be applied, adjustable units can be made specifically tailored to the application. Typically provided as brake units, with the addition of an input shaft, the same unit can be used as a clutch. In a clutch application, the pole/case member becomes the drive element, and the rotor/shaft assembly becomes the driven element of the clutch with torque being transmitted through the magnetic air-gap. Magtrol Hysteresis Permanent Magnet devices provide all the superior operating characteristics of smooth operation, precise repeatability and long life inherent in our standard
Hysteresis Brakes and
Clutches.
[post_title] => HPM/HPMC Series - Permanent Magnet Brakes and Clutches
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