Motion Control – Two Axis “Voice Coil” Stages feature: High Speed, and 0.1 Micron Accuracy!

Motion Control - 2 Axis, High Precision Voice Coil Stage

H2W Technologies

Santa Clarita, CA — A New high precision, high speed two axis voice coil positioning stage featuring 0.1 micron resolution encoders for high accuracy and repeatability is available from H2W Technologies. “Voice coil” or “Moving coil” motors are recognized for their low moving mass and high acceleration/deceleration. Therefore voice coil driven positioning stages are ideal for short stroke, closed loop, applications requiring high resolution, and high acceleration/deceleration control. Typical applications can include: Semiconductor testing and assembly, inspection and test, laser micromachining, and applications in research laboratories, and manufacturing, medical, and defense industries.

This compact two axis voice coil driven positioning stage (shown) features a 25 mm x 25 mm (1 in. x 1 in.) stroke, high precision cross roller stages, and two voice coil actuators in parallel driving the bottom stage to double the load and acceleration/deceleration capabilities. Continuous force (top axis) is 10.2 N (2.3 lbs) and 30,7 N (6.9 lbs) peak. The bottom axis has a continuous force of 20.5 N (4.6 lbs) and 61.4 N (13.8 lbs) peak. This two axis positioning stage can be driven with standard DC servo or DC linear amplifiers and a two-axis programmable motion controller.

Pre drilled mounting holes in the base and stage allow for easy installation in new or existing applications. Additionally, voice coil stages are available with strokes of 6.4 mm (0.25 in.) to 76 mm (3.0 in.) and with continuous force to 445 N (100 lbs), peek to 1335 N (300 lbs). Custom Voice Coil stages from H2W Technologies are available as complete plug-and-play positioning systems. Totally custom systems can be shipped in 3 to 4 weeks from receipt of order.

H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: or visit the website at