The surface of the suction cup is fine grinding treatment, the standard factory accuracy is about 2 wires because of the different accuracy of each machine tool, you need a wire or higher, you can be corrected on the machine tool after installation! The whole surface of the suction cup is chamfered, including the lattice and the border; Effectively avoid burr scratch fingers and workpiece conditions, increase the adsorption accuracy! The suction cup adopts a more complicated U-shaped bottom groove scheme, so that when the sealing rubber strip adsorbs the workpiece, it can better fit the suction cup and the workpiece, and the vv sealing effect is better.