Multiposition airless cylinder for precise control
A
Norgren product story
Edited by the Engineeringtalk editorial team
Nov 19, 2003
A new new electric actuator complements Norgren's existing range of pneumatic cylinders.
A new new electric actuator complements Norgren's existing range of pneumatic cylinders.
With the capability to move loads up to 11kg, the multiposition airless cylinder operates at very high speeds and is fully programmable to deliver high stroke accuracies.
This makes the actuator ideal for inclusion in applications that require high speeds combined with multiple position operation such as high speed insertion equipment in the packaging and semiconductor manufacturing sector, automatic test/inspection, printing and medical industries.
Featuring the capability to store multiple stroke end points each with its own defined speed, acceleration and force parameters, the positions can be programmed anywhere in the stroke range.
The system can be run in different modes: using a programmable controller's I/O modules or from an optional fieldbus connection.
For setup and tests the multiposition airless cylinder may automatically run a stored program.
This makes the device ideal for a large machine with PLCs, industrial computers and for smaller machines with limited I/O capability.
The airless cylinder requires one electrical connection to operate and can be disabled from the supply when not running thus conserving energy.
Featuring no mechanical connection between the moving mass and the stationary mass the airless cylinder features extremely long life and product reliability.
The movement is produced by the interaction of two magnetic fields, one field from permanent magnets in the slider and the second field produced by electric current in the motor windings located in the stator.
Unlike rotary motors either motor part can move if the other part is held fixed The programming of the cylinder is straightforward and intuitive.
Desired positions are entered using a laptop or by "teaching" the unit (moving it by hand and remembering the position).
Guiding system information (weight, friction, motor parameters) is entered once and stored under a "module description".
The operator does not have to enter this information.
This method of programming means that the operator saves time and money when making product changeovers by simply retrieving a stored program.
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