... waterproof, dustproof system 3.Water cooling constant torque spindle with the imported with the imported bearing, high power, low tone 4. ... sliding track, heavy loading, stable working, high precision, long lifetime .2. Whole seamless weld steel structure, not easy to distort, the ... Spindle Heavy Load Large Marble/Heavy Stone Rotary Axis CNC Multi-angle Engraver JCUT-1325C for Heavy Materials