The automatic detection system determines that when the vacuum pressure is lower than the set 50, the vacuum alarm audible and visual alarm and efficient supply (only 1.5 seconds), when the vacuum height of the absorbed plate is lower than the specified value, the automatic sound alarm. Each sucker is equipped with a buffer device, which can effectively protect the vacuum system to drink the workpiece; Rubber wrap feel good, surface raised lines non-slip, improve safety. Freely adjust the position, change the adsorption area to meet the different size of the working situation.