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HB/MHB Series | Hysteresis Brake

HB/MHB Series | Hysteresis Brake
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HB / MHB SERIES HYSTERESIS BRAKES / MATCHED HYSTERESIS BRAKES MAGTROL offers 5 main types of Hysteresis Brakes to absorb a load: Pure Hysteresis (HB Series), Compressed-Air-Cooled (AHB Series), Blower-Cooled (BHB Series), Base Mounted (CHB Series) & Torque Powder (TPB Series). Each type of Brakes has advantages and limitations. With over 50 standard models to choose from, Magtrol Sales professionals are readily available to assist in selecting the better brake to meet your application needs. FEATURES ■ Ideal for low-torque / high-speed applications with exceptional power ratings ■ Torque:2.5 ... 3 500 oz-in (0.018 ... 26 N-m) ■ Speed: <20000 rpm ■ Power: < 2 400 W ■ Available in Imperial or Metric dimensions ■ Torque independent of speed ■ Long, maintenance-free life ■ Magtrol hysteresis braking technology provides precise torque control independent of shaft speed ■ EMC conforms to European standards DESCRIPTION_ Magtrol pioneered the technology of applying the principles of hysteresis to meet the critical needs for reliable, smooth and adjustable torque control. Magtrol's 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. MATCHED BRAKES In tension control applications that have multiple webs or multiple strands, it is very desirable to match the tension of each web or strand. This is most commonly attained by using a closed-loop servo control system which controls current to a braking device through the use of dancer arms, follower arms and in-line tension transducers. The problem with such systems is that each web or strand must be individually controlled, increasing the cost and complicating the system with multiple sensors and power supplies. To solve this problem, Magtrol 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 is matched at the selected match point to within a tolerance of ±1 %. The maximum deviation in torque from brake to brake at any point along their torque/current curve (from 0 torque up to the selected matched torque point) is less than ±4 % of the selected matched torque value. With this level of matching, a system with multiple tension rollers would provide tension consistency within ±1 %o if set at the matched point with all brakes receiving the same current. The matched point can be any value between 50 %o and 100 %o of rated torque, which allows the brakes to be optimized for specific applications. Unless otherwise specified, all brakes are matched at 100 rpm. Matched Brakes Regular Brakes Power SupplyJ—^Transducer © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning.

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HB / MHB SERIES APPLICATIONS ▪ Precise control of wire tension during wind, hook and cut operation of high-speed automated winding machines ▪ Open-loop control for maintaining precise tension during winding process in transformer and coil winding operations ▪ Frictionless, non-breakaway force for tensioning materials during slitting and many other material processing operations ▪ Holding of backdriving loads ▪ Load simulation applications for life testing on electric motors, actuators, small gas engines, gearboxes, and many other rotating devices and assemblies ▪ Precise load control and...

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H MAGTROL OHB / MHB Hysteresis Brakes from Magtrol are available in two different ranges with Imperial Units (HB-XXX) or Metric Units (HB-XXXM). Please check in the following pages that you are using the appropriate brake. HYSTERESIS BRAKE RATINGS - IMPERIAL. UNITS MATCHED BRAKE DRAG TORQUE DE-ENERGIZED NOMINAL POWER EXTERNAL INERTIA a) Standard supply voltage is ~24 V DC. Other coil voltages (12 V DC and 90 V DC) are available on request. b) Kinetic power ratings are maximum values based on limiting coil and/ or bearing temperature to approximately 100 °C, and should not be exceeded....

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H MAGTROLPOWER ABSORPTION CURVES - IMPERIAL UNITSThe power absorption curves represent the maximum power (heat) that the hysteresis brake can dissipate over time. Maximum Kinetic Power Rating Curve for Continuous Duty: Area under curve equals the maximum speed and torque combinations for a continuous duty motor test. — — Maximum Kinetic Power Rating Curve for Less Than Five Minutes: Area under curve equals the maximum speed and torque combinations for a motor test of less than five minutes. © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify...

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MAGTROLDIMENSIONS HB/MHB SERIES - IMPERIAL UNITS NOTE:All dimensions are in Imperial Units (Inches). For Metric Units (mm) please see further in the dedicated section. a) HB-840 and HB-3500 are double brake assemblies that require base b) #807 woodruff keyway (2 places) mounting. See base mounting dimensions below for details. Magtrol manufactures double brakes to increase torque capability. For more information and a drawing, contact Magtrol. BASE MOUNTING DIMENSIONS Base mounting is standard on all HB-840, HB-3500 and HB-3500M brakes. MODEL ABCDE FGHJ0K IMPERIAL UNITS - DIMENSIONS...

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H MAGTROL OHB / MHB Hysteresis Brakes from Magtrol are available in two different ranges with Imperial Units (HB-XXX) or Metric Units (HB-XXXM). Please check in the following pages that you are using the appropriate brake. HYSTERESIS BRAKE RATINGS - METRIC UNITS MATCHED BRAKE DRAG TORQUE DE-ENERGIZED NOMINAL POWER EXTERNAL INERTIA a) Standard supply voltage is ~24 V DC. Other coil voltages are available (12 V DC, 90 V DC).. b) Kinetic power ratings are maximum values based on limiting coil and/ or bearing temperature to approximately 100 °C, and should not be exceeded. Actual values in...

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