Limit Switch lineup > Coreless motor

Product Overview

Simple Control via Limit Switch
Low failure thanks to simple wiring and intuitive installation.
Compactly integrated into small case (Limit switch, DC motor, gearbox, lead screw, rod, etc.)
Relatively reasonable cost comparing to servo actuator lineup
Long lifespan due to simple structure and current limitation
12mm diameter coreless motor lineup
     – The coreless motor is superior to the cored motor in terms of force and durability.
22mm stroke
Rated Load of 35N ~ 100N according to gear ratio
     – Speed ​​is inversely proportional to Rated Load, so the stronger the Rated Load, the slower the speed.
Travel can be adjusted within 22mm when external switch is applied.


Stroke Motor Voltage Rated Load / Speed Model
22mm 12V 35N / 28mm/s 12L-35S-22   
55N / 15mm/s 12L-55S-22   
100N / 7.7mm/s 12L-100S-22   

  • Heavy duty cored motor applied
  • 26mm stroke (27mm stroke can be extended to 29mm using IR-USB01)
  • Force option – 6N and 12N
  • 7.4V or 12V input voltage option
  • RS-485 or TTL/PWM protocol option
  • Engineering plastic rod

Main Features

  • 500μm Unidirectional repeatability & Position feedback
  • Heavy Duty Reliable coreless motor
  • Smart Overload protection detects jam or over 50% duty-rate (Overridable)
  • Compact size for space constraints
  • Various mounting solutions
  • Detachable and 90° rotatable hinge design (Patented)
  • Various Rated Load options (35 to 100N)
  • Various Speed options (7.7 to 28mm/s at No load condition)


  • Medical device and Lab equipment
  • Vending and game machines
  • Robotics
  • Automation (Factory / Home / Agriculture etc)
  • Production and inspection jigs
  • UAV (Fixed wing / Helicopter / Multicopter etc)
  • DYI, Education, Hobby, etc


Coreless motor lineup

Motor Voltage 22mm Stroke
Rated Load 35N Rated Load 55N Rated Load 100N
12V 12L-35S-22 12L-55S-22 12L-100S-22
Rated Load /
Max. Speed(No Load)
35N / 28mm/s 55N / 15mm/s 100N / 7.7mm/s
Applicable Max Load / Max. Speed(No Load) 70N / 28mm/s 110N / 15mm/s 200N / 7.7mm/s
Gear Ratio 10:1 20:1 50:1
Gear Type 4 Metal & 2 Engineering Plastic Gears

Common Specification

Stroke 22mm
Positional Accuracy 500μm (0.5mm)
Mechanical Backlash 0.03mm (30μm)
Rod Type Metal Alloy Rod
Motor Type Coreless Motor
Watt 26W
Recommend Duty Cycle At rated Load At applicable Max Load
Max 50% Max 20%
Input Voltage Range  7 ~ 13V
Current Consumption Idle Rated(No Load) Stall
50mA 150mA 1.5A
Audible Noise Approx. 50db at 1m
Ingress Protection IP-54 (Dust & Water Tight)
Size / Weight
(Excluding rod-end & hinge)
57.4(L)x29.9(W)x15(H)mm / 48g
Operating Temperature -10℃ ~ 60℃
Wire AWG 22
* Design and Specification can be changed without prior notice for further improvement.


22mm Stroke Version

Standard Accessories

Hinge : Hinge is rotatable by 90 degree according to the mounting condition.
Without hinge, actuator can be mounted using IR-MB02 (for 26, 27mm stroke version) or IR-MB03(for 41/56/96mm stroke version) Metal brackets.
Also, IR-EB01 Rod end bearing is also one of mounting option. Please refer to the mounting manual for each accessory.
Rod-end tip and Socket-set screw can be used according to user’s need.
Or, user may apply their own rod-end tip(M3 standard). Make sure to put M3 nut before applying rod-end tip.
The M3 nut is a double nut concept for angle adjustment of rod-end tip mounting.
When mounting rod-end tip, make sure to fix the M3 nut and the rod-end tip by the tool(such as long nose) to set angle and to prevent the rod from turning together. (If not, it may cause damage to the product. The rod should not be turned all the time.)