The high performance compact positioning voice coil
driven linear stages are used in positioning applications where high
speed, high acceleration or high accuracy is required.
The motorized linear stages are fully
self-contained. Each stage utilizes one or two voice coil motor(s), a
linear carriage system, an optical quadrature encoder feedback device
and a home switch. The standard positioning resolutions of 1 micron
through 29.95 microns are available for immediate delivery. Other
resolutions are available upon request.
The voice coil actuators are the simplest type of
electric motors to operate. The non-commuted motor construction
increases reliability with no cogging. The direct coupling of the motor
to the load allows for fast acceleration / deceleration and high speed
operation with zero backlash.
The low moving mass also allows for high bandwidth
servo loops.
Range of motion is from 0.50” (12.7 mm) through
5.20” (132.1 mm). Continuous (stall) forces range from 1 lb (4.5 N)
through 23.0 lb (102 N). The intermittent forces at 10% duty cycle are
from 3.1 lb (13.8 N) through 73 lb (323 N).
The carriage system utilizes cross roller,
recirculating or linear bearings depending on size and resolution.
Small footprint is ideal for compact positioning
applications.
The optional spring ensures the return of carriage
upon loss of power, making the stage ideal for vertical or horizontal
applications.
