Slight warmth is normal. However, if it feels very hot to the touch, the fan may be broken or the spindle could be overloaded

The inverter's power, voltage, and frequency must match the spindle's specifications.

Keep it clean, don't overload it, and check if the fan is spinning correctly.

It depends on the material you're processing.

2.2kW: Suitable for engraving materials like acrylic and PVC.

3kW - 4.5kW: Most common, used for nesting and engraving various wood panels.

6kW and above: Ideal for heavy cutting, like cutting solid wood.