AMF Series – Adjustable Motor Fixtures

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Adjustable Motor Fixture

Product Description

Magtrol’s AMF Series Adjustable Motor Fixtures are used to secure small to medium-sized motors in place while running any test. These extremely versatile fixtures also enable easy motor centering for coupling to a Magtrol HD Series Hysteresis Dynamometer. (Couplings can be supplied upon request.) Various motor lengths are accommodated by either an attached T-slotted base plate or sliding base, depending on the model.

The AMF-1, -2 and -3 Fixtures feature one or two adjustable bridges, each fitted with a fluted knob clamp screw, to allow clamping anywhere along the axis of the motor. The adjustable bridge on the AMF-V Fixture incorporates a straight-line action clamp with a V-angle rubber padded clamp to maximize the mounting area.

To safeguard the motor, locking thumb screws provide protection against vibration and all motor-to-fixture contact surfaces are nylon padded for scratch-free clamping.

Features

  • Accommodate motors up to 8¼ inches in diameter
  • Used with most Magtrol HD Series Dynamometers
  • Secure anchoring system
  • Easy motor centering
  • Extremely versatile and adaptable
  • Vibration protection
  • Scratch-free clamping
  • Tool-free adjustment
  • Direct mounting to Magtrol TAB Series Dynamometer Table or dynamometer base plate (depending on model and system configuration)

Model Comparison and Drawings

 AMF-1AMF-2AMF-3AMF-V
Motor Diameterup to 4 inchesup to 6 inchesup to 8¼ inches4 to 8 inches
DynamometerHD-100, 400 and 500 Series with short base plate optionHD-700 Series with short base plate optionHD-800 Series with
T-slot base plate option
HD-800 Series with
T-slot base plate option
Fixture BaseT-slot base plateT-slot base platestandard base plateslider
Clamping Bridges1221
View/Download Detailed Drawing (printable PDF file)

Mounting Example

Magtrol HD-705-XXX-0100 Dynamometer with AMF-2 Adjustable Motor Fixture with 4-inch motor locked in place.

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                    [post_date] => 2017-04-05 12:20:44
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                    [post_content] => 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% 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.

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
  • Accuracy: ±0.25% (Full Scale)
  • Air Flow Sensor: For protection against overheating and operator error
  • Standard Torque Units: English, Metric and SI
  • Base Plate: Available in long or short versions
  • Custom Dynamometers: for special torque and speed requirements
  • Easy Calibration

The Hysteresis Braking System

All Magtrol Hysteresis Dynamometers absorb power with a unique Hysteresis Braking System which provides frictionless torque loading independent of shaft speed. The Hysteresis Brake provides torque by the use of two basic components - a reticulated pole structure and a specialty steel rotor/shaft assembly - fitted together but not in physical contact. Until the pole structure is energized, the drag cup can spin freely on its shaft bearings. When a magnetizing force from the field coil is applied to the pole structure, the air gap becomes a flux field and the rotor is magnetically restrained, providing a braking action between the pole structure and rotor.          

[post_title] => HD Series - Hysteresis Dynamometers [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => hysteresis-dynamometers-hd-series [to_ping] => [pinged] => [post_modified] => 2022-04-18 11:04:00 [post_modified_gmt] => 2022-04-18 15:04:00 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=410 [menu_order] => 34 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [1] => WP_Post Object ( [ID] => 736 [post_author] => 1 [post_date] => 2017-04-05 18:17:59 [post_date_gmt] => 2017-04-05 18:17:59 [post_content] => Test from a stationary position or move a dynamometer to alternate testing stations with ease with Magtrol's Dynamometer Table. The stand is designed from lightweight aluminum with casters for smooth mobility, and is sturdy enough to support even the heaviest of Magtrol dynamometers. The design can be retrofitted to any Magtrol dynamometer and is easily reconfigured for added versatility. [post_title] => Dynamometer Tables [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => dynamometer-tables [to_ping] => [pinged] => [post_modified] => 2019-10-09 11:00:53 [post_modified_gmt] => 2019-10-09 15:00:53 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=736 [menu_order] => 53 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [2] => WP_Post Object ( [ID] => 866 [post_author] => 1 [post_date] => 2017-04-06 16:51:38 [post_date_gmt] => 2017-04-06 16:51:38 [post_content] => PT Series T-slot Base Plates are used for creating a basic test rig by mounting a Magtrol Dynamometer and/or 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 cost-effective and easy to assemble. [post_title] => PT Series - T-Slot Base Plates [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => pt-series-t-slot-base-plates [to_ping] => [pinged] => [post_modified] => 2022-04-18 10:58:53 [post_modified_gmt] => 2022-04-18 14:58:53 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=866 [menu_order] => 56 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [3] => WP_Post Object ( [ID] => 906 [post_author] => 1 [post_date] => 2017-04-06 17:54:54 [post_date_gmt] => 2017-04-06 17:54:54 [post_content] => Magtrol Coupling Guards are easily removable and designed to mount in front of Magtrol HD Series Dynamometers. They are also available for some WB Series Dynamometers. Coupling Guards help keep objects from vertical interference and aid in preventing accidental coupling contact during rotation. The guard length required will change according to the coupling size used with the dynamometer. Magtrol Coupling Guards are not explosion proof and are not intended as protection against catastrophic coupling failure. [post_title] => Coupling Guards [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => coupling-guards [to_ping] => [pinged] => [post_modified] => 2018-01-30 21:54:20 [post_modified_gmt] => 2018-01-30 21:54:20 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=906 [menu_order] => 101 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) ) [post_count] => 4 [current_post] => -1 [in_the_loop] => [post] => WP_Post Object ( [ID] => 410 [post_author] => 1 [post_date] => 2017-04-05 12:20:44 [post_date_gmt] => 2017-04-05 12:20:44 [post_content] => 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% 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.

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
  • Accuracy: ±0.25% (Full Scale)
  • Air Flow Sensor: For protection against overheating and operator error
  • Standard Torque Units: English, Metric and SI
  • Base Plate: Available in long or short versions
  • Custom Dynamometers: for special torque and speed requirements
  • Easy Calibration

The Hysteresis Braking System

All Magtrol Hysteresis Dynamometers absorb power with a unique Hysteresis Braking System which provides frictionless torque loading independent of shaft speed. The Hysteresis Brake provides torque by the use of two basic components - a reticulated pole structure and a specialty steel rotor/shaft assembly - fitted together but not in physical contact. Until the pole structure is energized, the drag cup can spin freely on its shaft bearings. When a magnetizing force from the field coil is applied to the pole structure, the air gap becomes a flux field and the rotor is magnetically restrained, providing a braking action between the pole structure and rotor.          

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