Mitchell manufactures push pointer for cold-drawn steel tube producer

George A. Mitchell Co., Youngstown, Ohio, has been contracted to supply a 33,000-lb., five-die rotary hydraulic push pointer for a U.S. manufacturer of cold-drawn steel tubes.

This type of machine is used when more than three dies are needed to accomplish a specific schedule of point reductions before the cold drawing operation, typically on aluminum or copper. It is unusual for steel tube to require more than three reductions, but the tube manufacturer has some products with high D/t ratios that require up to five reductions.

A servomotor and drive system rotate the indexing die head. The servo system allows infinite rotational adjustment and near-perfect angular accuracy, says the company. During a die change, the rotary die head can be rotated without requiring the hydraulic pumping unit to be running, which makes the process safer.