What equipment is needed to produce expansion bolts？According to the expansion screw in the picture, it is composed of 5 parts, then we must first produce each part and then assemble them.
1.Bolts are made by cold heading machine and thread rolling machine
The anchor bolts are first formed by a cold heading machine, and then threaded with a thread rolling machine.
2.Nut is made by a nut making machine and a nut tapping machine
Nut are first formed by a nut making machine,and then tapped by a nut tapping machine.
3.The plain washer and expansion sleeve are made from press machine
The plain washer and expansion sleeve are all made from press machine，Coupled with an automatic feeder, the production efficiency can be greatly improved.
4.Spring washer is made by spring washer machine
Spring washer production line contains a belt wire drawing machine, coil collection machine, coiling machine, cutting machine.
5.Assembling machine to assemble the above components
Finally, use an assembling machine to assemble the above components, and a complete set of expansion bolts is completed.
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