... 3D- axis ,Y axis cantilevel and movable,Main mechanism of four axises are above the machine. Axis servo ... Soldering robot,servo motor,Y axis cantilevel,main mechanism of four axises are above the machine,so dont ... tin balls influence other sensitive place of PCB 3,Assistant function of send solder wire Passing through to ... nitrogen can be pushed out from the tips of iron, the best soldering effect can be ...