... 2.ball screw 3.stepper motor 4.high precision rotary device for advertising engraving machine ZK-1224Introduction: 1.the ... duct collector, helping to suck the dust, milling dust, rotary axis for cylindrical materials, DSP offline control system, when working ... granite, aluminium, copper, steel and many other material.Specification: Model:ZK-1224Machine body:Whole cast ironGuideway:XYZ-axis use cylinder ...