Max Jac Linear Actuator

The new Thomson Max Jac® linear actuator is one of the most rugged actuators available today.  It incorporates the decades of experience Thomson has gained from making linear actuators for mobile-off-highway applications. The Max Jac is built to perform in harsh environments where materials, such as fertilisers, mud, sand, high pressure water, slush, salt water and snow are present, and withstands heat or heavy vibrations .  Max Jac’s design provides both high performance and durability – delivering high speed, ef­ficiency, and accuracy in a compact unit.

Features and Benefits

  • long life and reliability
  • small envelope with stainless steel adapter
  • up to 100% duty cycle performance
  • suitable replacing pneumatic cylinders
  • maintenance free with high degree of corrosion protection
  • non-contact analog or encoder position feedback options
  • high speed and efficiency
  • minimal backlash and vibration resistant
  • built for harsh temperature ranges
  • built for high pressure water jet washdowns
  • built to cope with harsh dust, dirt and mud environments

Part Numbers



Performance Specifications MX**W
worm screw
ball screw
Max Dynamic Load: N (lbf) 500 (112.4) 800 (179.8)
Max Static Load: N (lbf) 2000 (449.6) 100-350**
Max No-Load Speed: mm/s (in/s) 33 (1.3) 60 (2.36)
Max Full-Load Speed: mm/s (in/s) 19 (0.75) 30 (1.18)
Available Input Voltages: VDC 12, 24
Standard Stroke Lengths: mm (in) 50, 100, 150, 200, 250*, 300*
(2, 4, 6, 8, 10, 12)
Operating Temperature: ºC (F) -40 to +85 (-40 to +185)
Full load duty cycle @ 25 ºC 25%
Maximum End Play: mm (in) 0.3 (0.012)
Restraining Torque: Nm (lbf-in) 2 (18)
Lead Cross Section: mm² (in²) 1 (0.002)
Cable Length Options: mm (in) 300 (11.8), 1600 (63)
Protection Class IP66, IP69K
Salt Spray Resistance h 500
Life cycles 500000***
Analog Position Feedback Signal: VDC 0.5 to 4.5
Encoder Position Feedback 5VDC input, 2-channel


* Strokes possible for ball screw models only
** The static force (i.e. backdriving force) for a ball screw unit varies – based on # of cycles run and loading
*** For ballscrew actuators with 100 mm stroke, avg load of 500N and changing load direction

Max Jac Heavy Duty Actuator Brochure

Smart Actuation Brochure