Product category:
Gears, brakes, couplings and engines
News Release from: Motion Drives and Controls | Subject: Magpowr magnetic particle clutches and brakes
Edited by the Engineeringtalk Editorial
Team on 24 October 2006
Clutches and brakes turn to tension
control
Magpowr magnetic particle clutches and brakes provide a very precise yet simple solution for demanding web tension and torque control applications.
Magpowr magnetic particle clutches and brakes, available exclusively in the UK from Warwick based Motion Drives and Controls, provide a very precise yet simple solution for demanding web tension and torque control applications For even greater control at near zero torque, all Magpowr power supplies include a reverse current feature that helps to remove the inherent drag torque caused by small amounts of residual magnetism within the mechanism
This article was originally published on Engineeringtalk on 17 Jun 2008 at 8.00am (UK)
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This standard feature ensures the widest possible torque range and is proven to maximise finished quality and decrease material wastage in web tensioning applications, particularly for nonwoven and delicate materials.
Magpowr clutch and brake units cover input speeds from 34 to over 3000rev/min with torque ratings from 1 to 135Nm.
Applications range from simple open-loop unwind to fully integrated closed-loop tension control systems with clutches and brakes available in a variety of mounting configurations.
Further reading
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Control algorithms combine the accuracy, precision and power savings of traditional servomotors with the higher torque and lower cost of traditional stepper motors.
Safety inspection service launched
Factory-trained staff carry out a complete assessment of the condition of the safety or sliding chuck at the customer's site.
Cooling options to improve torque transmission, braking capacity and duty cycle are available.
Tension controls include the compact Cygnus, providing a range of advanced features including web break detection and out-of-round roll compensation.
The comprehensive Versatec tension controller includes modes for ultrasonic tension control, dancer control, free loop, and ranger applications.
Other dedicated controllers are available for dancer/follower applications and the complete range is supported with load cells and readouts.
A full range of matching power supplies includes the DIN rail mounted PS-90.
With a current regulated voltage range of -3.6 to +90V DC and four selectable current ranges of 0.125, 0.25, 0.5 and 1A, the unit may be mounted inside the machine cabinet and manually adjusted by an operator from a remote potentiometer or can be controlled by a 0-10V DC input from a Magpowr controller or PLC.
For a very convenient installation solution, this CE compliant, UL and cUL listed product may be fitted inside the Cygnus-E tension controller.
A 24V DC version (PS-24) is also available.
Other power supply options include card and packaged versions.
All Magpowr power supplies include the reverse current feature ensuring excellent fine control for web tensioning and precise torque limiting applications.
ISO9002 approved Motion Drives and Controls limited provides a complete service covering the supply of components through to customised design and on-site installation of turn-key automation systems with a 24 hour, 7 day service backup.
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