LXK320HY CNC drill collar spiral milling machine is the specialized cnc machine tool for milling drill collar, use three milling cutters cut the mutual 120°spiral groove of drill collar at the same time. The main technical specification is as following:

(1) Machining diameter： ∮98～∮320㎜;

(2) Machining length: ≤10,000㎜；

(3) Spiral groove helical lead： 914㎜～2320㎜