1. Specifications& Feature Higher torque and higher speed. Reduced motor heating and more efficient. Smooth motion and super-low motor noise. Microstep, no longer lose any steps, up to its maximum torque. Stepper Motor： Nema23(57mm) length: 235mm Height: 105mm Angle Accuracy: plus or minus 5%(full step,no load) Gross weight: 9.5kg 2. Advantages: Rolling engraving, easy to load and unload, saving engraving time and high efficiency. High torque Low fever High stationarity High consistency Zero-Speed Stability 3. Benefit This co2 laser engraving machine chuck rotary shaft can add rotary laser processing capability to your laser engraving machine. Quick and easy to resize for a variety of products such as glasses, mugs, bottles and more. Our swivel attachment is ideal for engraving cylindrical objects with laser engraving machines. 4. Package List: 1 × Rotary Axis