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Motion Control

This category covers:

Equipment that aids the control of industrial processes subject to continuous changes in position. Includes drives, motors, gears, chains and belts, bearings, actuators, brakes and clutches.

Shoe chain

Product brochure: shoe chains from RUD download

Rud ChainsTue, 24 Feb 2015

RUD offers a selection of shoe chains made from textile or stainless steel with profiled chain links for good grip.

More product downloads

White paper: modular test bed for assessing performance of stick-slip actuators downloadweblink

Cedrat Technologies S.AWed, 25 Feb 2015

Stepping piezoelectric actuators based on the stick-slip effect inherently make use of a friction contact between stator and rotor. This contact defines the actuator’s performance but is prone to wear and tear. For broad use, the actuator has to be able to perform around one million strokes. To assess the actuator’s performance in terms of force, speed, mechanical output, electrical input and long-term stability under different load and environmental conditions, as well as different ...

APA500L with steel shell

White paper: manufacture and properties of first industrial APAs using carbon epoxy shells downloadweblink

Cedrat Technologies S.AMon, 23 Feb 2015

According to Cedrat Technologies, future aeronautics are more likely to use electric actuators than hydraulic actuators. Existing amplified piezo actuators (APAs) with steel shells are good candidates. Lighter carbon shells are being developed to further increase their efficiency. For helicopter rotor blade applications this evolution is almost unavoidable, but it is also very interesting for other domains.

Force oscillator design

White paper: high-power force oscillator and drive electronics downloadweblink

Cedrat Technologies S.AWed, 18 Feb 2015

This paper from Cedrat Technologies presents the development of the largest piezo actuator ever designed based on low-voltage PZT. This actuator is able to provide more than 20kN of force in dynamic operation (60kN in static operation). The purpose of low-frequency vibration generation is to improve the quality of parts production in the field of manufacturing and machining process.

View of different APAs (XS, S, SM, M, ML and L types)

White paper: amplified piezoelectric actuators — static and dynamic applications downloadweblink

Cedrat Technologies S.AThu, 12 Feb 2015

Amplified piezoelectric actuators offer the advantage of large deformation (up to eight per cent) and large strokes. Because of a prestress applied to the piezo ceramics and an efficient mechanical amplifier, they can produce large strokes both in static and dynamic conditions including resonance. For these reasons, these actuators can be used for micro-positioning, structure shaping, structure active damping and more.

CA45 linear amplifier

White paper: electrically tunable low-frequency miniature suspension downloadweblink

Cedrat Technologies S.AMon, 9 Feb 2015

Optical instruments such as interferometers and optical delay lines are sensitive to external vibrations and require a strong isolation of vibrations. These requirements have driven the development of a new type of electrically tunable low-frequency miniature suspension. The result is a miniature semi-active single-axis suspension called ETS offering a very low cut-off frequency.

Cross section of the linear actuator

Technical article: a comparison of different simulation models downloadweblink

CedratWed, 28 Jan 2015

  In this paper the question will be discussed where and when the expense of a CoSimulation with two established simulation tools such as 1) Matlab/Simulink and 2) FLUX is worthwhile. A linear actuator is used as an example, which is simplified and abstracted from a real part due to confidentiality reasons. 

Bearing handling

Technical article: correct handling of bearings maximises operating life download

BardenWed, 28 Jan 2015

Experience shows that up to one third of bearing failures can be attributed to improper handling and faulty mounting. Moreover, these problems get worse as bearing tolerances become more exacting, says Gary Hughes, product engineering manager at The Barden Corporation.


Technical article: BRUCE — electromagnetic actuated pin puller downloadweblink

Cedrat Technologies S.ATue, 27 Jan 2015

Pin pullers are used to hold, lock or secure deployable or moving parts on spacecrafts during their launching. These ‘one shot’ actuators used to be based on explosive charges.