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AHB Series | Compressed-Air-Cooled Hysteresis Brakes

AHB Series | Compressed-Air-Cooled Hysteresis Brakes
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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 1

COMPRESSED-AIR-COOLED 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: 0.3 ... 24 N·m ▪ Speed: ≤ 35 000 rpm ▪ Power: ≤ 5 300 W ▪ Compressed-Air Cooling offers excellent heat dissipation. ▪ Allowable input air pressure of up 95 PSI eliminates the need for a regulator. ▪ Magtrol hysteresis braking technology provides precise torque control independent of shaft speed. ▪ EMC susceptibility conforms to European standards ▪ All metric dimensioning & base mounting standard ▪ Designed for use with Magtrol’s PT Series T-slot Base Plate mounting system. Fig. 1: AHB-3 | Compressed-Air-Cooled Hysteresis Brakes ▪ A variety of accessories and system options to choose from to create a simple and cost-effective test system. DESCRIPTION When torque control/torque measurement must be performed at the highest possible power, Magtrol AHB Series Hysteresis Brakes are ideal. Passages running through the brakes enables compressed air cooling, providing excellent heat dissipation. This design allows for continuous power ratings up to 3 000 W (5 300 W intermittent). Use of pre-loaded bear- ings in the AHB Series Hysteresis Brakes allows operation at speeds of up to 35 000 rpm for extended durations. AHB Brakes are conveniently base mounted. Base mounting, with integral barrier type terminal strip, provides easy mounting and wiring. APPLICATIONS Magtrol’s AHB Series Compressed-Air-Cooled Hysteresis Brakes can function in either torque measurement or torque control applications. When mounted to a PT Series T-slot Base Plate, a costeffective, basic motor test rig can be easily configured. For this purpose, Magtrol offers several accessories and system options to choose from. The simplest test bench may include one or two AHB Brakes and an AMF (Adjustable Motor Fixture) mounted onto a PT Series (Base Plate). Adding a TS or TM Series (In-Line Torque Transducer), couplings, FRS (Free-Run Speed Sensor), MODEL 3411 (Torque Display) or DSP 7000 (Dynamometer Controller) greatly expands the system’s motor testing capabilities. Other accessories available from Magtrol include: power supplies, air filters, pressure gauge kits, air lines, pipe fittings, jack shafts and risers. In addition to motor test applications, AHB Series CompressedAir-Cooled Hysteresis Brakes can be used for the following: ▪ Durability/reliability verification ▪ Brush run-in © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewa

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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 2

AHB SERIES SYSTEM CONFIGURATIONS AHB Series Hysteresis Brakes are versatile enough to be specified for use in simple open-loop systems or more complex closed-loop systems. OPEN-LOOP SYSTEMS A characteristic of the open-loop system is that it does not use feedback to determine if its input has achieved the desired goal. This means that the system does not react to the output of the processes that it is controlling. AMF Series An open-loop controller is often used in simple test setups because of its simplicity and low cost, especially in systems where feedback is not critical. Below is an...

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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 3

AHB SERIES PRINCIPLES OF HYSTERESIS 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 magnetically restrained, providing a braking action between the pole structure and rotor. Because torque is...

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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 4

Typical sound pressure at 1 meter: 110db WARNING: High sound levels can cause permanent hearing loss. Use hearing protection while this product is in use. © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning. DATASHEET www.magtrol.com

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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 5

AHB SERIES POWER ABSORPTION CURVES The 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. 0.80 © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without...

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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 6

AHB SERIES POWER ABSORPTION CURVES 30.00 Push Connect Fitting for ø8mm Tube Push Connect Fitting for ø8mm Tube © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning.

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AHB Series | Compressed-Air-Cooled Hysteresis Brakes - 7

MAGTROLDIMENSIONS AHB-1 -AHB-24 Dimensions for Double Brakes (AHB-3.3, AHB-6 & AHB-24) a) Face mount not available on the AHB-3.3, AHB-6 & AHB-24. b) Air inlet on double brakes (AHB-3.3, AHB-6, AHB-24) is located on the top. For more information please see detailed technical drawing. (website or on request) NOTE: 3D STEP files of most of our products are available on our website: www.magtrol.com ; other files are available on request. © 2023 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning. Page 7 / 9 DATASHEET...

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