Product Announcement from H2W Technologies

3 Phase Brushless Linear Motor-Image

The 3 phase brushless (or AC servo) linear motor is ideal for long stroke, closed loop servo, linear motion applications. They can be used at speeds up to 240 in / sec [6 m / sec]. They are capable of very precise position, velocity and acceleration control when coupled with a linear encoder.

The 3-phase coil assembly can be commutated trapezoidally using integral Hall Effects or sinusoidally using software commutation in conjunction with the appropriate motion controller and sinusoidal amplifier.

The short encapsulated moving coil assembly moves thru a gap in the long "U" shaped magnet assembly. A customer supplied bearing system is required to guide the moving coil assembly and to maintain a .025" [0.63 mm] clearance between the magnet and the coil assembly.

The power to the motor (from a customer supplied PWM 3 phase brushless servo amplifier) is supplied to the moving secondary via a power cable.

Larger motors with higher forces are available, consult factory for details and drawings.

The motors are available in 3 different cross sections and 5 different coil assembly lengths.


  • Zero cogging
  • High speed and accelerations of light loads
  • Low moving mass
  • Uses standard 3 phase brushless amplifier

Product Info:

  • Travel: Unlimited Unlimited
  • Velocity: 240 inches/sec [6 m/s]
  • Acceleration: 12 G's 12 G's
  • Peak Force: 600 lbs [2669 N]
  • Continuous Force: 200 lbs [888 N]


H2W Technologies 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 steppersDC brush and brushless linear motorsvoice 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 please 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

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