Product category:
Electric Linear Actuators
News Release from: Lambda Photometrics | Subject: M-230, M-238 and M-235
Edited by the Engineeringtalk Editorial
Team on 11 October 2006
Motorised actuators keep equipment on
the level
High load motorised linear actuators meet the increasing need for precision levelling and alignment in industrial machinery.
To meet the increasing need for precision levelling and alignment in industrial machinery a comprehensive range of high load motorised linear actuators is now available from PI The actuators, which incorporate a low friction, heavy duty ballscrew, can move and hold loads of up to 40kg to within a step size of 0.1um
This article was originally published on Engineeringtalk on 25 Feb 2000 at 8.00am (UK)
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A nonrotating tip design, built in Hall-effect limit and reference switches and a line driver that allows a cable length of up to 10m, helps to simplify the integration process for the design engineer.
Three different designs of standard actuator are detailed on the PI website.
The M-238, which has a travel of 50mm and can hold a load of up to 40kg, features a low stiction, low friction construction that allows motion increments as small as 0.3um.
Further reading
PI Catalogue on the Web
Physik Instrumente (PI), world leaders in the manufacture of Piezo and Motor driven products for Nanopositioning and Micropositioning applications, now has its product catalogue on the web.
Piezo actuators: positioning to sub-micron levels
Piezo actuators are being used in areas such as semiconductor manufacture and test, fibre optic component manufacture, micro valve development and active vibration cancellation.
A direct metrology, linear encoder option produces the highest precision, achieving a unidirectional repeatability of 0.3um and a backlash of only 1um.
A direct drive DC motor produces a velocity of up to 30mm/s.
The M-235 series, with 20 and 50mm of travel can hold loads of up to 10kg and can move position with increments as small as 0.1um.
Three drive options are available, a DC motor direct drive, a DC motor gearhead drive and a two phase stepper motor drive.
The rugged construction of the M-238 and M-235 drives ensures that under normal operating conditions an MTBF of more than 20kh is achieved.
The M-230 series, for low force applications, is available with 10mm and 25mm of travel.
When driven by either a DC motor gearhead or a two phase stepper motor a minimum incremental motion of 0.05um is specified making the M-230 drive ideal for the highest precision applications.
For the Design Engineer the non rotating tip feature of all the drives ensures that torque induced positioning error, tip wear, sinusoidal motion error, and tip induced wobble are all eliminated from the integration process.
Each actuator is supplied with a selection of end tips, an integrated 0.5m cable with 15-pin D sub connector and a 3m extension cable.
An optional 10m extension cable can be supplied on request.
PI controllers such as the C-843 PCIbus board and the C-862 Mercury can drive geared versions of the actuators without the need for any external voltage amplification.
An external power supply is required for the higher voltage direct drive motors.
The new C-663 Mercury Step is a low cost single channel stepper motor controller ideal for driving the two phase stepper versions.
The actuators are also compatible with a range of industry standard controllers. Request a free brochure from Lambda Photometrics ...
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