Actuators combine speed with nanometre precision
A
Lambda Photometrics product story
Edited by the Engineeringtalk editorial team
Apr 18, 2003
PI NanoPositioning Group has extensively added to its range of ultra-high-resolution motorised linear actuators.
PI NanoPositioning Group has extensively added to its range of ultra-high-resolution motorised linear actuators.
The latest models to reinforce PI's range include the M-230, M-232 and M-235 series.
They are all fitted with noncontact, high-precision limit switches and homing switches and differ from one another via design and load capacity.
Rotating or nonrotating lead screws, or recirculating ball screws are used depending on the particular model.
In contrast to conventional linear actuators, resolution of the new PI actuators does not come at the price of speed.
This has been accomplished by the use of low-friction ball screws and high-resolution encoders (rather than high-ratio gearboxes).
The fastest model achieves 50mm/s and still provides submicron resolution.
Other models provide design resolution of 5 to 100nm and pushing forces up to 150N.
An optional piezo-tip featuring 1nm resolution is available as an upgrade.
Typical applications include: micromachining, semiconductor test equipment, biotechnology, nanotechnology, high-precision micropositioning and nanopositioning.
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