17Lf Servo Series

    Looking for L12 series? Please see here.

    ⚠ Notice
    The information for 17Lf series shown on the website is for advance publicity. We are happy to release 17Lf series in the third quarter of 2024 after completing certifications and technical documentations. The drawings have already been listed on the digital archive, and other technical data such as user manuals, datasheet will be posted in advance as soon as they are ready.

    The new mightyZAP servo series with a 17mm diameter motor which improve durability. Provide faster speed under the same rated load specification comparing to the 12Lf series.
    Overall functionality is almost same as the 12Lf series, but only RS-485 communication and MODBUS RTU protocol are provided, and user expandability has been improved with the expansion I/O port.

    17Lf Servo Series Features

    • Compact size with built-in drive, position sensor, DC motor and gear box
    • Better durability & faster speed under similar rated load comparing to 12Lf series thanks to the bigger 17mm diameter DC motor
    • Position, current and speed control along with position & current feedback
    • Easy digital I/O control through expansion I/O port (No coding)
    • Action feature which enables user's motion save & run
    • 27/37/50/87mm(*) stroke option
      (*): Each 3mm stroke can be added when adjusting the long stroke limit through Total Manager software.
    • Rated load of 17N~70N depending on the lead angle for each stroke.
      - Speed is inversely proportional to the rated load, so the higher the rated load, the slower the speed.
    • RS-485 MODBUS-RTU protocol applied (IR open protocol is not provided)


    To be later

    Main Features

    Current Control / Current Feedback

    • Stall Force and current control based on current feedback.
    • Current feedback allows detection of objects and obstacles.
    • Possible to maintain constant force for a certain time (Applicable to Gripper, etc.) 

    Precision position & Dynamic speed control

    • 30~50μm Unidirectional repeatability & Position feedback (Varied by each stroke version. See spec chart.)
    • Absolute position sensing via Potentiometer (No Calibration needed)
    • 32Bit Micro controller, High resolution (4096) A/D converter
    • 1000 steps dynamic speed control (Fastest speed is default.)

     Durability & Safety

    • Longer durability compared to the 12Lf series by applying a 17mm diameter 12V coreless motor
    • Metal alloy rod
    • Engineering plastic case (27mm stroke version)
    • Aluminum stroke case & engineering plastic motor case (37mm/50mm/87mm/)*
    • Current control allowing longer life cycle & safer control
    • Life-cycle Reference Data is on our website (Under 50% duty cycle recommended)
    • Vertical (Z axis) use is possible due to mechanical Self-lock (Certain models are not applicable, see the model chart)
    • Smart overload protection by calculation of cumulative current
    • LED indicator shows voltage/overload error status and also shows simple circuit damage diagnosis


    • Compact size for space constraints
    • Hassle-free, Built-in drive circuitor
    • Daisy chain serial connection between servos
    • Improved user expandability by expansion I/O port (control without coding is available)
    • Various mounting solutions
    • Detachable and 90° rotatable hinge design (Patented)
    • Dedicated PC Software (Parameter setting & simple motion testing) and PC USB Interface (IR-USB02 or 03) available (Optional)
    • LED Error indicator and MODBUS communication error code
    • Paired with various controller types (PC / PLC / Arduino / Rasberry-Pi / RC Controller / Dedicated embedded board etc.)


    Variety and Line-Up

    • Various Stroke options (27mm, 37mm, 50mm, 87mm)*
    • Various Rated Load options (17 ~ 70N)
    • Various Speed options (28 to 117mm/s at No load condition)
    • RS-485 data communication (4pins)
    • Modbus RTU Protocol (IR Open protocol is not available)
    • PWM and TTL to be added later
    • Customization is actively available
      * Can be extended up to 30mm/40mm/53mm/90mm through IR-USB02 or USB03, respectively.


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


    17Lf Servo Series Specifications

    Stroke Communication Rated Load /
    Max Speed(No Load)
    Stall Force at Current
    (1.6A / 800mA / 200mA)
    Self Lock
    (Z Axis Use)
    Lead Screw
    / Gear Ratio
    / Gear Type


    17Lf-17F-37 17N / 105mm/s 90N / 58N / 23N No
    (Pay attention to application)
    Lead Angle 16.2°
    / 9.3:1
    / Engineering Plastic Gears




    20N 27mm 
    17Lf-20F-27 20N / 117mm/s Lead Angle 22.2° 
    / 9.3:1
    / Engineering Plastic Gears
    27N 37mm 
    17Lf-27F-37 27N / 82mm/s 96N / 68N / 27N Lead Angle 12.3°
    / 9.3:1 
    / Engineering Plastic Gears
    35N 27mm 
    17Lf-35F-27 35N / 90mm/s Lead Angle 17°
    / 9.3:1 
    / Engineering Plastic Gears
    50N 37mm 
    17Lf-50F-37 50N / 28mm/s  182N / 129N / 50N Yes
    Lead Angle 4.16° 
    / 9.3:1&nbsp
    / Engineering Plastic Gears
    70N 27mm  
    17Lf-70F-27 70N / 32mm/s Lead Angle 5.82°
    / 9.3:1 
    / Engineering Plastic Gears

    (*): Maximum stroke length when adjusting long stroke limit through Total Manager software


    17Lf Servo Series Common Specifications

    Repeatability Stroke Unidirectional
    27mm / 37mm 30μm(0.03mm)
    50mm 40μm(0.04mm)
    87mm 50μm(0.05mm)
    Mechanical Backlash 0.03mm(30μm)
    Rod Type  Metal Alloy Rod
    Motor Type Coreless DC (17mm diameter)
    Rated Voltage 12VDC
    Motor Watt 3.8W
    Recommended Duty Cycle At Rated Load At Max Applicable Load
    Max 50% Max 20%
    Current Accuracy ±15%at Over 50mA
    Position Sensor 10KΩlinear Potentiometer
    Input Voltage Range 7 ~13V (Rated 12VDC)
    Current Consumption Idle at Rated Load Stall
    Default Setting MAX
    Under 30mA  400mA 800mA 1600mA
    Audible Noise Approx. 50db at 1m
    LED Indication Two Errors Indications (Input voltage, Overload)
    Communication Method / Protocol RS-485 / MODBUS RTU (IR Open protocol is not supported)
    Pulse Signal / Pulse Range PWM mode to be added later by I/O Port
    Ingress Protection IP-54(Dust & Water Tight)
    Dimension(LxHxW) / Wight
    (Dimension excluding the rod-end tip and hinge)
    27mm 57.5x40.6x23mm / 65.5g
    40mm 86.8x57.9x23mm / 113.5g
    53mm 111.5x57.9x23mm / 140g
    87mm 151.5x57.9x23mm / 188g
    Operating Temperature -10℃~ 60℃
    Wire Harness Comm./Power RS-485 Molex to Molex Type(Molex 510650400, 4pins) / 200mm length, 0.08×60(22AWG)
    I/O Port I/O Port Wire harness : Molex 510210500, 5pins / 200mm length, 0.16 x 7 (26AWG)

     * Design and Specification can be changed without prior notice for further improvement.


    (UNIT : mm)


    (UNIT : inch)

    Standard Accessories