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㎜

 (4) Speed of main spindle:                  80～500rpm , (Stepless, controlled by transducer)

 (5Cutting speed range:                    80-160m/min

 (6) Cutter diameter:                        ∮200㎜

(7)Machine feed speed:            ?x≤4m/min; ?z≤5m/min; ?c≤3rpm;