Automatic bolt screw machine/cold heading machine/screw machine

1. Automatic screw making machineTo produce bolt, two machines are necessary--Cold-heading Machine and Thread Rolling Machine:1. Cold-heading MachineTo cut raw material wire according to length of finished bolt and form bolt head. Main Technical Parameter: Model NoDia. of Nail(mm)Length of

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1. Automatic screw making machine

To produce bolt, two machines are necessary--Cold-heading Machine and Thread Rolling Machine:

1. Cold-heading Machine

To cut raw material wire according to length of finished bolt and form bolt head.

 

Main Technical Parameter: 

Model No

Dia. of Nail(mm)

Length of Nail(mm)

Z12-3

1.2-3

2-16

Z12-4

2-4

6-48

Z12-5

2-5

6-60

Z12-8

4-8

10-100

Z12-10

6-10

20-120

Z12-16

10-16

25-150

 

2.  Thread Rolling Machine

To roll thread on blank shank of bolt after being cold-headed.

Main Technical Parameter: 

Model

Dia. of Threading(mm)

Length of Threading(mm)

Length of Screw(mm)

Z25-4

2-4

6-25

6-25

Z25-5

2-5

6-50

6-50

Z25-6

2-6

6-60

6-80

Z25-6L

2-6

6-60

6-100

 

Besides the above two machines, another machine is optional---Edge Trimming Machine

 

3.   Edge Trimming Machine

To make Hex. head after being cold headed.
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