Oil pipe threads are a science unto themselves. These critical connectors for the oil and gas industry demand absolute accuracy and repeatability. Okuma’s Variable Spindle Speed Threading (VSST) delivers this level of certainty when machining parts with a high L/D ratio or a thin-walled diameter with or without threads.

Using VSST requires only a simple programming step. The threading feed axis is controlled actively according to the changing spindle speed. Feed-forward technology (using variation of spindle speed and variation of acceleration and deceleration speeds) helps realize high-accuracy threading even with spindle speed change. These features are easily activated manually or with preprogrammed instructions. Best of all, adjustments can be made by the machine operator in the cut, not after a full pass.

Thread Start Point Offset is another built-in function that adds to productivity by allowing easy initiation of threading at a specific orientation on a part. The offset provides rapid establishment of a starting cut in the thread form and ends any trouble picking up the lead for an existing thread form. Whether creating or re-working a thread, Thread Start Point Offset is a time-saver that pays off in productivity and cost savings.