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Brakes and Clutches

Brakes and Clutches
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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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PRINCIPLES OF HYSTERESIS In an electrically operated Hysteresis Brake resistance to rotation is proportional to applied current from virtually zero to rated torque. POLE STRUCTURE SHAFT Advantages • Long, Maintenance-Free Life • Life Cycle Cost Advantages • Operational Smoothness • Superior Torque Repeatability • Broad Speed Range • Excellent Environmental Stability BALL BEARINGS ROTOR (Drag Cup) FIELD COIL Hysteresis Brakes Hysteresis Clutches Matched Hysteresis Brakes Large Bore Brakes

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HYSTERESIS BRAKES Standard Brakes 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. rATINGS Model Min. Torque Resistance Rated Nominal at Rated at 25 °C Voltage* Current Power Current ±10%...

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Matched Brakes 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%. RATINGS Min. Torque Resistance Rated Nominal at Rated at 25 °C Voltage* Current Power Current ±10% V DC W oz·in mA Ω 98 262 25.0 3.7 0.02 Drag Torque Kinetic Power** Max. De-energized Speed 5 Minutes Continuous @1000 rpm rpm W W oz·in 20,000 20 7...

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Large Bore Brakes 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. * Higher speeds, up to 8000 rpm, are available on special basis. ** Kinetic power ratings are maximum values based on limiting coil and/or bearing temperature to...

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power supplies 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 5210 Power Supply Model 5210 Current Regulated Power Supply The Model 5210 provides the same control capabilities as the 5200, and also provides current regulation of the brake. With regulated current, the 5210 will eliminate torque drift caused by temperature changes within the brake coil. Model 5250 Current Regulated Power Supply Model 5250-2 is an open frame, current regulated power supply that provides...

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