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Highly Reliable Hysteresis Devices for Tension and Torque Control

Highly Reliable Hysteresis Devices for Tension and Torque Control
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Highly Reliable Hysteresis Devices for Tension and Torque Control - 1

BRAKES & CLUTCHES Highly Reliable Hysteresis Devices for Tension and Torque Control • Hysteresis Brakes • Compressed-AirCooled Brakes • Matched Brakes • Hysteresis Clutches • Large Bore Brakes • Permanent Magnet Brakes & Clutches • Convection Powder Brakes

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Highly Reliable Hysteresis Devices for Tension and Torque Control - 2

In an electrically operated Hysteresis Brake resistance to rotation is proportional to applied current from virtually zero to rated torque. Advantages • Long, Maintenance-Free Life • Life Cycle Cost Advantages • Operational Smoothness • Superior Torque Repeatability • Broad Speed Range • Excellent Environmental Stability POLE STRUCTURE -SHAFT BALL BEARINGS FIELD COIL APPLICATIONS PoleJCase Assemb!y\^ Laterally Moving Coro Supply Reel Large Bore Brakes

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Highly Reliable Hysteresis Devices for Tension and Torque Control - 3

Pure Hysteresis Brakes produce torque strictly through a magnetic air gap without the use of magnetic particles or friction components. This method of braking provides far superior operating characteristics (smoother torque, longer life, superior repeatability, high degree of controllability, and less maintenance and down time) which make them the preferred choice for precise tension control during the processing of nearly any material, web or strand. ENGLISH BRAKE RATINGS * Kinetic power ratings are maximum values based on limiting coil and/or bearing temperature to approximately 100 °C,...

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Highly Reliable Hysteresis Devices for Tension and Torque Control - 4

Magtrol has developed a system to assure that every brake of a given model designation will be matched, at a predetermined torque and current point, to other brakes of the same model designation regardless of material and manufacturing tolerances. Each brake will be matched at the selected match point to within a tolerance of ±1%. ENGLISH BRAKE RATINGS * 12 VDC, 90 VDC and non-standard coil voltages are available on all models. ** Kinetic power ratings are maximum values based on limiting coil and/or bearng temperature to approximately 100 °C, and should not be exceeded. Actual values in...

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Highly Reliable Hysteresis Devices for Tension and Torque Control - 5

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 in machines used for manufacturing cable, wire, fiber optic cable, rope and tape, among others. Magtrol Large Bore Brakes provide smooth, repeatable torque, largely independent of speed. * Permanent Magnet Brakes can be charged at factory to produce lower torque if desired. ** Maximum speed listed will produce 5-minute kinetic power rating at rated torque.

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Highly Reliable Hysteresis Devices for Tension and Torque Control - 6

Model 5200 Power Supply Model 5200 is an unregulated 0-35 V DC Power Supply which offers control and regulation of the braking torque via a 10-turn potentiometer. Model 5211 Current Regulated Power Supply Model 5211 Power Supply The Model 5211 provides the same control capabilities as the 5200, and also provides current regulation of the brake. With regulated current, the 5211 will eliminate torque drift caused by temperature changes within the brake coil. Model 5251-2 Current Regulated Power Supply Model 5251-2 is an open frame, current regulated power supply that provides smooth...

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