... structure 2. high speed gear wheel 3. 5.5KW WATER cooling spindle. heavy duty high Z axis stone cnc router ... melting material.Feature:1.X,Y,Z three-axis all the imported linear square orbit .2.X ... ,Y,Z three-axis all have the waterproof, dustproof system3.Water cooling ... components.6.Adopt double drivers to drive y axis, motivity is more stronger7.Whole seamless steel structure ...