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· Customer profile：

1. Power supply products, anti-static requirements of the assembly process can not touch the screws;

· Analysis of working conditions：

1.For the handheld position, to prevent abnormal conditions such as missing screws and dropping  screws in the stable material. The drum feeder is recommended , which can control the number of screws;

2.The handheld position adopts a handheld quick-change module, which can be compatible with various screw tightening requirements;

3.By mean of that force arm, on one hand, manual operation can be facilitated, and on the other hand, the module can be control to stop vacuuming, so that the field noise is reduced, and electric appliance resource are saved, that vacuum suction screw is open after the screw picking position is reached through a force arm position mode, and after the screw is screwed down, The Screw Driver feeds back the status signal to the PLC to close the vacuum.