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Hybrid Stepper Motor Linear Actuators used in medical, laboratory instrumentation, military systems, semiconductor fabrication, and wherever precision motion is criticalHaydon Kerk Motion Solutions offers a unique line of hybrid stepper motor linear actuators that open new avenues for equipment designers who require high performance and exceptional endurance in a very small package.  The various patent pending designs use a proprietary manufacturing process, which incorporates engineering thermoplastics in the rotor drive nut and a stainless steel acme lead screw.  This allows the linear actuator to be much quieter, more efficient and more durable than the v-thread and bronze nut configuration commonly used in other linear actuators.  Motor life is improved more than 10 times over the traditional bronze nut style – and it requires no maintenance and does not affect the cost.  An additional feature is the bearing pre-load adjustment which, unlike other designs, does not protrude from the motor configuration commonly used in other actuators.  

The Haydon™ brand of hybrid linear actuators come in six sizes, from 21 mm square to 87 mm square corresponding to NEMA size 8, size 11, size 14, size 17, size 23, and size 34.  Each size has three designs available – captive, non-captive and an external linear version.  There are over twenty different travels per step available, from .00006 inch (.001524 mm) to .005 inch (.127 mm).  Micro stepping can be used for even finer resolution.

Longer screw lengths are available on non-captive and external linear actuators.

These linear actuators are ideal for applications requiring a combination of precise positioning, rapid motion and long life.  Typical applications include X-Y tables, medical equipment, semiconductor handling, telecommunications equipment, valve control, and numerous other uses.


Size 8 Linear Actuator

Size 11 Linear Actuator

Size 11 DS Linear Actuator

Size 14 Linear Actuator

Size 14 DS Linear Actuator

Size 17 Linear Actuator

Size 17 DS Linear Actuator 

Size 23 Linear Actuator 

Size 23 DS Linear Actuator

Size 34 Linear Actuator

AC Synchronous Linear Actuators

Can-Stack Stepper Motor Linear Actuators used in medical, laboratory instrumentation, communications equipment, and wherever precision motion is criticalThe Haydon™ brand of can-stack stepper motor linear actuators provides both a broader range and, for a given size, significantly higher thrust than previously available from mini-steppers. Five basic frame sizes are available, Ø 15 mm (.59"), Ø 20 mm (.79"), Ø 26 mm (1"), Ø 36 mm (1.4") and Ø 46 mm (1.8"). Available step increments vary with the motor frame sizes and are dependent on the basic step angle of the motor and the lead screw pitch. A captive, external or non-captive shaft (lead screw) option can be supplied for almost every size. The captive shaft configuration features a built-in "anti-rotation" design. The non-captive shaft option requires the customer to provide external anti-rotation. The external linear actuators incorporate a rotary lead screw and an external translating nut. These motors are ideal for applications where there is no space behind the motor for a through-screw design. Both unipolar and bipolar coil configurations are available.

Longer screw lengths are available on non-captive and external linear actuators.

Haydon Kerk Motion Solutions patented design accepts a larger rotor than conventional units, improving efficiency and eliminating the need for massive heat sinks. Unique features impart ruggedness and reliability that assure long life and consistent performance. Rare earth magnets are available for even higher thrust. All units are built with dual ball bearings for greater motion control, precise step accuracy and long life.

Applications include medical instrumentation, machinery automation, entertainment, semiconductor, robotics, sophisticated pumping systems and other automated devices which require precise remote controlled linear movement in a broad range of temperature environments


15000 (15mm) Linear Actuator

19000 (20mm high output) Linear Actuator

20000 (20mm) Linear Actuator

Z20000 (20mm Z) Linear Actuator

25000 (25mm high output) Linear Actuator

26000 (26mm) Linear Actuator

Z26000 (26mm Z) Linear Actuator

36000 (36mm) Linear Actuator

37000 (36mm high output) Linear Actuator

46000 (46mm) Linear Actuator

AC Synchronous Linear Actuators


Programmable Stepper Motor Linear Actuator with an integral controller, drive, and motor fully programmable through an easy-to-use graphic user interface (GUI)Haydon Kerk Motion Solutions offers the IDEA Programmable Linear Actuator which is an integrated stepper motor based linear actuator, electronic drive and fully programmable control unit.  Programming the actuator is through a simple-to-use patent-pending Graphic User Interface (GUI).  Programming the actuator is through the use of on-screen buttons instead of complicated proprietary programming languages. 

A unique benefit of the IDEA Drive GUI is the automatic population of the motor and drive parameters based on entering the actuator part number when prompted by the user interface.  Complex parameter calculations or in-depth stepper motor knowledge from the user is completely unnecessary.  For a more experienced user, auto-populated values can easily be adjusted as long as they remain within the safe range calculated by the software.


Size 17 Programmable Linear Actuator

Size 17 DS Programmable Linear Actuator