Heavy Duty Cnc Router Rotary Fourth Axis Kit Featuring Knockout Nema 34 Stepper Motor And Ironclad 130mm Four Jaw Chuck For Precision Wood Carving And Metal Milling

Single CNC Rotary Fourth Axis Kit with Stepper Motor and Chuck
✔️ NEMA 34 4.2A motor, 20:1 gear reducer, 130mm four jaw chuck,

This single rotary fourth axis kit functions as a sturdy indexing attachment for router beds and milling tables. You clamp it directly to your work surface to handle wrapped engraving, round profile cutting, and continuous rotational feeds. It works best as a handy expansion when you need steady torque without stepping away to realign awkward shapes.

✅ K12 130mm four jaw centring chuck for secure workpiece grip
✅ NEMA 34 86 frame 2 phase 4 wire 4.2A stepper motor
✅ 20:1 worm gear reducer delivers high torque at low RPM
✅ 76mm motor length with 80mm mounting hole spacing
✅ M8 screw fixings and 8.8mm bolt diameter for stable assembly
✅ 15kg solid weight rating ensures vibration free operation during cuts

💡 What is a cnc rotary fourth axis kit used for?

These rotary attachments expand standard router footprints into complete multi sided machining centers. They act as a handy upgrade when you want to cut letters, turn profiles, or wrap graphics around cylindrical stock. Here is how to get the most out of a geared rotary indexer setup.
- Sync the controller pulses with pulse count per revolution settings for flawless angle tracking
- Match the voltage and current limits of your driver board to prevent motor stutter under load
- Calibrate the axis homing sequence before running automated contour paths to lock positional accuracy
- Keep the gear housing clean and lightly oiled to maintain consistent friction coefficients over time

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