BASE MOUNTED HYSTERESIS BRAKES FEATURES ▪ Ideal for low-torque/high-speed applications with exceptional power ratings ▪ Torque up to 3,500 oz·in/26 N·m ▪ Speed: up to 12,000 rpm ▪ Power: up to 2,400 W ▪ Standard base mounting ▪ All metric dimensioning ▪ Torque independent of speed ▪ Long, maintenance-free life ▪ Magtrol hysteresis braking technology provides precise torque control independent of shaft speed ▪ Designed for use with Magtrol’s PT Series T-slot Base Plate mounting system (sold separately) ▪ EMC conforms to European standards Fig.1 : CHB Series Base Mounted Hysteresis Brake ▪ A variety of accessories and system options to choose from to create a simple and cost-effective test system DESCRITPTION 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. APPLICATIONS ▪ Precise control of wire tension during wind, hook and cut operation of high-speed automated winding machines ▪ Frictionless, non-breakaway force for tensioning materials during slitting and many other material processing operations ▪ Load simulation applications for life testing on electric motors, actuators, small gas engines, gearboxes, and many other rotating devices and assemblies ▪ Open-loop control for maintaining precise tension during winding process in transformer and coil winding operations ▪ Holding of backdriving loads ▪ Ultimate tension control, regardless of control scheme– dancer roll, follower arm, photo or ultrasonic sensors ▪ Precise load control and programmed repeatability in fitness machines © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewa

H MAGTROLPRINCIPLES OF HYSTERESIS OVERVIEW The hysteresis effect in magnetism is applied to torque control by the use of two basic components -a reticulated pole structure and a specialty steel rotor/shaft assembly-fastened together but not in physical contact. Until the field coil is energized, the drag cup can spin freely on the ball bearings. When a magnetizing force from either a field coil or magnet is applied to the pole structure, the air gap becomes a flux field. The rotor is rotor — magnetically restrained, <Dra9 Cup) providing a braking action between the pole structure hub and rotor....

BASE MOUNTED HYSTERESIS BRAKE RATINGS BRAKE MODEL BRAKE MODEL a) Other coil voltages are available. 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 service may vary ±50% depending on mounting, ventilation, ambient temperature, etc. * Angular Acceleration values are available upon request ** To prevent damage to the power supply from inductive kickback, connect a diode rated at greater than or equal to the power supply’s output voltage and current across the brake leads. Connect...

H MAGTROL DIMENSIONS CHB DIMENSIONS (MILLIMETERS) CHB BRAKE MODEL © 2023 MAGTROL I Due to continual product development, Magtrol reserves the right to modify specifications without forewarning. DATASHEET www.magtrol.com

CHB SERIES POWER ABSORPTION CURVES HB-140, PowerCHB-1 Absorption Curve CHB-1.5 HB-250, Power Absorption Curve 281.25 Torque (oz-in) Torque (oz-in) Continuous 5-min HB-450, PowerCHB-3 Absorption Curve Torque (oz-in) Torque (oz-in) HB-840, PowerCHB-6 Absorption Curve Continuous CHB-12 HB-1750, Power Absorption Curve Torque (oz-in) Torque (oz-in) CHB-5 HB-750, Power Absorption Curve CHB-24 HB-3500, Power Absorption Curve The power absorption curves represent the maximum power (heat) that the brake can dissipate over time. Maximum Kinetic Power Rating Curve for Less Than Five Minutes: Area under...

CHB SERIES SYSTEM OPTIONS AND ACCESSORIES PT SERIES T-SLOT BASE PLATES FRS FREE RUN SPEED SENSOR Magtrol’s PT Series Base Plates are used for creating a basic test rig by mounting a brake and/or TM Torque Transducer in line with the unit to be tested. Its solid, warp-resistant structure and multiple, single-sided T-slots enable modular construction that is costeffective and easy to assemble. Magtrol’s FRS Free-Run Speed Sensor is designed for applications where it is necessary to acquire speed readings that are unaffected by drag load. Before connecting a motor to the dynamometer, the free-run...

H MAGTROLORDERING INFORMATION SYSTEM OPTIONS CATEGORY DESCRIPTION MODEL/PART # © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning. DATASHEET www.magtrol.com MAGTROL INC 70 Gardenville Parkway Buffalo NY 14224 | USA MAGTROL SA Route de Montena 77 1728 Rossens | Switzerland Worldwide Distribution Network CHB SERIES BASE MOUNTED HYSTERESIS BRAKES - US 01/2023