Drill collar spiral milling machine is the specialized cnc machine tool for milling drill collar, use three milling cutters mill drill collar spiral groove at the same time. The main technical specification is as following of Drill collar spiral milling machine:

1, Machining diameter:     ∮98～∮280㎜;

2, Machining length:      ≤12, 000㎜;

3, Spiral groove helical lead:    914㎜～2320㎜