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100mm CNC 4th Axis CNC dividing head/Rotation Axis/A axis kit Nema23 Gapless harmonic gearbox for CNC woodworking machine


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  • Description


    1 pc — 4th Axis 100mm 3 Jaw Chuck Positive jaw and counter jaw )



    • 100MM three jaw self-centering chuck

    • Center Height 65mm

    • Total height, 115MM

    • Angle, 0.036 degree/step

    • Reduction ratio:50:1 (synchronous deceleration mode)

    • Magnetic stepping motor: Two-phase 57 step motor Four-wire


    Tip: We have 50:1 reduction gearbox and 100:1 reduction gearbox.

             If you need 100:1 reduction gearbox,please tell us!!



    详情页_091详情页_11The Mach3 system settings:  the pulses for 1  required:

    ( the motor 1 Circle of pulse number × the drive of subdivision number × reduction ratio) ÷ 360 degrees

     For example, the two-phase 57 motor, the ubdivision number 16, the reduction ratio 50:1

                          (200 × 16 × 50) ÷ 360 = 444.44444444)


    Ncstudio system settings: the angle of a pulse walking:

      360 ÷ (the motor 1 Circle of pulse numberr × × the drive of subdivision number × reduction ratio)

     For example: the two-phase 57 motor, the breakdown of the number 16, reduction ratio 50:1

                          360 ÷ (200 × 16 × 50) = 0.00225


    X or Y axis instead of the algorithm is:

     Circumference ÷ (the motor 1 Circle of pulse numberr × × the drive of subdivision number × reduction ratio)

     Engraving different sizes of round bars, equivalent needs to be set



    • Nema23    57x56mm

    • Shaft Diameter: 6.35 mm

    • Shaft length: 25.5mm

    • Step Angle:1.8

    • Current: 3A

    • Voltage: 2.85V

    •  Temperature Rise :80 c max

    • Ambient Temperature:-20 c–+50 c

    • Phase No. : 2HP 

    • Insulation Resistance: 100MOhm(500V DC)

    • Holding Torque: 9.0kg.cm





    Shipping terms:

    Our products are sold worldwide.

    But if your country is more difficult to transport goods, please contact us in advance to confirm shipping cost.



    We accept paypal credit, bank transfer, western union etc. 

    Payment must be made within 7days calendar days of the auction end time.


    Problem and Feedback:

    Please give us the opportunity to resolve any problem, we will try our best to help you.

    Your satisfaction is very important for our store, so please contact us before you want to leave a negative feedback. 

    Thanks very much in advance.



    If you are not satisfied with our package like the products is damage, please do not sign it and contact us immediately.

    If it is possible, please take some photos or make a small video about it. It will help us to solve the problems.



    We can produce the product according to our customer’s design. 

    If you need something is very special, please contact us about it.



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