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AC Linear Induction Motor

H2W Technologies

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H2W Technologies AC Linear Induction Motor - AC Linear Induction Motor by H2W Technologies

AC Linear Induction Motor by H2W Technologies

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What Is A Linear Induction Motor?

A Linear Induction Motor (LIM) is a non-contacting, high speed, linear motor that operates on the same principal as a rotary, squirrel cage, induction motor. They are capable of speeds up to 1800 in/sec [45 m/s] and are typically used in applications where accurate positioning is not required. LIM’s can also be operated at stall to produce static thrust.

The 3-phase coil assembly can be directly connected to the AC line for single speed applications or to an adjustable frequency drive for precise variable control of the speed of the motor. The motors are reversible and can also be dynamically braked.

The laminated coil assembly (shown above) is used in conjunction with a customer supplied aluminum and steel reaction plate to produce a force. A customer supplied bearing system is required to maintain the .040” - .060” [1 – 1.5 mm] air gap between the coil assembly and the reaction plate. The length of the reaction plate is equal to the coil length plus the stroke.

The amount of thrust produced by the LIM is proportional to the active surface area of the motor.

There is an attractive force between the coil assembly and the steel in the reaction plate only when power is applied to the coil assembly.

Multiple coil assemblies can used together to produce larger forces.

If the reaction plate is a disc, then rotary motion can be produced.

Either the LIM or the reaction plate can move while the other is fixed.

In hostile environments a non-magnetic stainless steel barrier can be used between coil assembly and the reaction plate to provide a seal.

Please call 661.251.2081 for more information.

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About H2W Technologies

H2W Technologies


H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. We are committed to providing every customer with the optimal solution for their motion application in the shortest possible time, at the lowest possible cost using only the highest quality products.


We offer a complete line of linear electric motors including; single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors.

Our high speed and high precision linear motor driven positioning stages are ideal for both single and multi-axis closed loop servo applications. We also offer a complete line of ball screw, lead screw and belt driven positioning stages. We can provide you either a standard or custom designed positioning stage by itself or as a complete turnkey solution with a servo amplifier, power supply and programmable motion controller.

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 failsafe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

H2W also offers design services for various types of electromagnetic devices such as magnetic latches, solenoids and rotary motion devices.

New products are constantly being developed, so please check our web site www.h2wtech.com for the latest developments and new product offerings.


H2W Technologies, Inc. has developed and implemented a quality management system to demonstrate its ability to provide consistently product that meets or exceeds customer requirements. Our quality Assurance procedures address customer satisfaction through the effective application of the quality system, including continual improvement and the prevention of nonconformity. The quality system complies with the international standard ISO 9001:2008.


With over 75 years combined experience in the linear and rotary motion field, our team of engineers can offer you the optimal solution to your most demanding motion control, requirements.

Our core engineering team which has worked together for over 25 years consists of: Dr. Walter Hinds - PhD Physics, Fred Wilson - MSEE, and Mark P Wilson - MSME.

Please call us anytime at (888)-702-0540 and talk directly with one of our design engineers. We will give you straightforward honest answers to all of your technical questions and we will provide you with a solution for all of your linear and rotary motion control applications.

Semiconductor, Military, Medical, Aerospace, Material Handling, People Moving, Amusement Park Rides Packaging, Automotive, and Clean Room