Motorized Linear Actuators offer resolution to .04 µin.
Press Release Summary:
Offering travels to 2 in., speeds to 50 mm/sec, and load capacities to 400 N, M-238 series includes models with rotary encoder or non-contact optical linear encoder (M-238.5PL). Self-contained packages, which consist of dc servo motor connected to ball screw, incorporate non-rotating tip for optimal stability and motion linearity. Additional features include non-rotating drive shafts, non-contacting limit switches, and homing sensors.
Original Press Release:
High-Load Precision Linear Actuators Combine Resolution, Speed & Force
Auburn, MA. Nanopositioning Specialist PI, provides the M-238 series of high-load motorized linear actuators for applications requiring very high resolution, high force and high speed.
M-238 precision linear motorized actuators are self-contained packages consisting of a DC-servo motor connected to a ball screw. A lower cost model with a rotary encoder and an higher precision model with a linear encoder are available. Both provide a very high load capacity of 400 N and a travel range of 50 mm.
Optional Linear Encoder for Higher Precision
The M-238.5PL model is equipped with a non-contact optical linear encoder (direct metrology) with an output resolution of 0.1 µm. Because the encoder measures the actual position of the non-rotating actuator tip, drive train errors like backlash and elastic deformations are eliminated.
Non Rotating Tip for Reduced Wear
Like most other PI motorized actuators, the M-238 series features a non-rotating tip which ensures maximum stability and motion linearity. Integrated non-contacting limit switches and homing sensors increase the versatility and help to protect sensitive equipment in applications where extended motion could cause damage.
Applications: M-238 actuators are ideally suited applications in astronomy, precision machining and flexible automation.
More information on M-238 Linear Acutators:
http://www.physikinstrumente.com/en/products/prdetail.php?&sortnr=703750
Features & Advantages
o New space-saving, ultra-low friction designs
o Speed to 50 mm/sec, travel to 50 mm (2"), resolution to 1 nm (.04 µ inch)
o Closed-loop servo motors / high resolution encoders or stepper motors
o Non-rotating drive shafts for improved linearity and repeatability
o Ball-screws for high-speed actuation and extended lifetime
o Limit switches and home switches for added safety & versatility
o Variety of low-cost, stand-alone or PC-card controllers/drivers available
o Compatible with National Instruments motion controllers
About PI
PI is a leading manufacturer of nanopositioning and precision motion-control equipment for photonics, nanotechnology, semiconductor and life science applications. PI has been developing and manufacturing standard & custom precision products with piezoelectric and electromagnetic drives for 35+ years. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with eight subsidiaries and total staff of 450+.
