CNC Engraving Machine Rotary 4th Axis 100mm 4jaw lathe chuck 6:1 Tailstock with Stepper Motor Kit
CNC Engraving Machine Rotary 4th Axis 100mm 4jaw lathe chuck 6:1 Tailstock with Stepper Motor Kit
Specifications
Engraving Machine 4th Axis A Axis:
Chuck Type: K12-100mm 4-jaw self-centering chuck (includes reverse jaws)
Center Height: 65mm
Total Height: 115mm
Step Angle: 0.3° per step (with connected motor and driver)
Gearbox Output Shaft Diameter: 25mm
Reduction Ratio: 6:1 (belt reduction)
Hollow Shaft Inner Diameter: 22mm
Included Components & Accessories
1x 4th Axis Rotary Table Assembly
1x Nema23 Stepper Motor (see specifications below)
1x MT2 Live Center Tailstock (see specifications below)
1x Set of anti-claw and wrenches
Stepper Motor Specifications
Model: Nema23
Shaft Diameter: 8mm
Shaft Length: 25.5mm
Step Angle: 1.8°
Rated Current: 3.0A
Rated Voltage: 4.2V
Max. Temperature Rise: 80°C
Insulation Resistance: 100 MΩ min. (at 500V DC)
Holding Torque: 18 kg·cm
MT2 Live Center Tailstock Specifications
Taper Type: Morse Taper 2 (MT2)
Center Height: 65mm
Quill Travel: 50mm
Center Type: Rotating (Live)
Features: Includes wrench for axial locking
System Parameter Configuration (Reference Examples)
For Mach3/4:
Pulses per degree = (Motor steps per rev × Driver microstepping × Reduction ratio) ÷ 360
Example (57mm motor, 16x microstepping, 100:1 ratio): (200 × 16 × 100) / 360 ≈ 888.889 pulses/degree
For Weihong (Syntec) Controls:
Degrees per pulse = 360° / (Motor steps per rev × Driver microstepping × Reduction ratio)
Example (same parameters): 360 / (200 × 16 × 100) = 0.001125°/pulse
Note: User must input parameters based on their actual motor and driver specifications.








Bret – 20 Apr 2026

I want to buy the
CNC Engraving Machine Rotary 4th Axis 100mm 4jaw lathe chuck 6:1 Tailstock with Stepper Motor Kit
NO.:K12-100. I need to see what size the tail stock is in comparison to the Rotary 4th Axis. Is it 4.7" like the $65.00 MT2 tailstock? or is only 1-1/4" long? Be fore I buy I need to see what I really am buying. Where would this ship from? Thank you for your time.
Thanks for your message.
I have sent an email to you, would you please check it?
Thank you.






