What's the difference between thrufeed dies and infeed dies?

1. Surface difference between thrufeed thread rolling dies and infeed thread rolling dies:

Thrufeed: The threads are as the rings on the surface of thread rolling dies.

Infeed: There are multiple starts (helix angle) at the edge of thread rolling dies.

2.Thread Rolling Progress of thrufeed thread rolling dies and infeed thread rolling dies:

Infeed: The work piece stays at the same rollng point.

Thrufeed: Set the helix angle with the roller shafts of thread rolling machines first, and insert the thread rolling dies.

3.Axial movement:

Thrufeed: Work piece rides between the dies on a support blade.

Infeed: Work piece rotates between the dies. but has little to no axial movement.

4.Application for thrufeed thread rolling dies and infeed thread rolling dies:

Thrufeed: To thread rolling longer length of screws. (longer than the length of thread rolling dies).

Infeed: To thread rolling of shorter length.

If have any interesting for thrufeed thread rolling dies, infeed thread rolling dies and hydraulic thread rolling machine, pls contact us freely.

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