The difference between the water-cooled spindle and the air-cooled spindle of the engraving machine spindle:

1. Service life, water-cooled spindles should pay attention to maintenance, frequent water changes or use industrial water coolers, such spindles have a much longer life than air-cooled spindles!

2. Accuracy, the axial and radial runout of the water-cooled spindle is basically lower than 0.003 mm, while the air-cooled spindle (domestic) is much lower than 0.003 mm!

3. Water cooling, as the name implies, is to cool the heat generated by the high-speed rotation of the spindle with water circulation, which is very good, because the temperature after the water circulation (commonly used test) will not exceed 40 degrees; the air-cooled spindle uses a fan to dissipate heat, and its effect Definitely not as good as water cooling.