Data Sheet - Magtrol HD-106 User Manual

Chapter 1 – Introduction
1.3

DATA SHEET

HD
SERIES
HYSTERESIS DYNAMOMETERS
Magtrol offers three types of dynamometer brakes to absorb load: Hysteresis, Eddy Current and Magnetic Powder. Each type
of Dynamometer has advantages and limitations and choosing the correct one will depend largely on the type of testing to be
performed. With over 50 models to choose from, Magtrol Sales professionals are readily available to assist in selecting the
proper Dynamometer to meet your testing needs.
HD FEATURES
▪ 16 Standard Models with Maximum Torque from
2.5 oz·in to 500 lb·in (18 mN·m to 56.5 N·m)
▪ Hysteresis Braking System: provides precise
torque loading independent of shaft speed
▪ Motor Testing: from no load to locked rotor
▪ Standard Torque Units: English, Metric and SI
▪ Accuracy: ±0.25% to ± 0.5% (full scale)
▪ Air Flow Sensor: For protection against
overheating and operator error
▪ Base Plates: available in long or short versions
▪ Custom Dynamometers: for special torque and
speed requirements
▪ Easy Calibration
HD DESCRIPTION
Hysteresis Brake Dynamometers (HD Series) are versatile and
ideal for testing in the low to medium power range (maximum
14 kW intermittent duty). With a Hysteresis Braking system,
the Dynamometers do not require speed to create torque, and
therefore can provide a full motor ramp from free-run to locked
rotor. Brake cooling is provided by convection (no external
source), by compressed air or by dedicated blower, depending
on the model. All Magtrol Hysteresis Dynamometers have
accuracy ratings of ± 0.25% to ± 0.5% full scale — depending
on size and system configuration.
To better integrate dynamometers into systems, Magtrol offers
both long and short base plates. The shorter base plate
facilitates easier motor mounting when used with T-slot tables
and Magtrol Adjustable Motor Fixtures, where as the long base
plates are better suited for table top testing.
HD APPLICATIONS
Magtrol motor test systems can be found in test labs, at
inspection stations, and on the manufacturing floors of most of
the world's leading manufacturers, users and certifiers of small
to medium sized electric, pneumatic and hydraulic motors, as
© 2016 MAGTROL | Due to continual product development, Magtrol reserves the right to modify specifications without forewarning.
DATASHEET
Magtrol Hysteresis Dynamometers
Fig.1 : HD-700 Series Hysteresis Dynamometer
well as internal combustion engines. Magtrol supplies motor
test systems for a wide array of industries including: Appliance,
Automotive, Aviation, Computer, HVAC, Lawn and Garden,
Medical and Dental, Electric Motor, Office Equipment and
Power Tools.
ED FEATURES
▪ Maximum Torque: from 55 lb·in to 250 lb·in
(6.5 N·m to 28 N·m)
▪ Hysteresis Braking System
▪ Motor Testing: from no load to locked rotor
▪ Standard Torque Units: English, Metric & SI
available
▪ Accuracy: ±0.25% (full scale)
▪ Blower Cooled: to maximize heat dissipation
▪ Air Flow Sensor: for protection against overheating
and operator error
▪ Specially Reinforced Load Cell: stainless steel pin at
contact point prevents premature wear from excess
vibration
▪ Larger Shaft: for additional strength
▪ Gusseted Pillow Blocks: for additional front and
rear support
▪ Easy Calibration
10
HD
SERIES
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