The deep hole processing machine tool according to the length of the workpiece using two workpiece Art: a short piece by delegated oil grant oil and hydraulic jacking; long workpiece using by the tail of the boring bar grant oil and four jaw chuck clamping. The oil - bearing device adopts the innovation of the spindle - type structure, the load bearing performance is greatly improved, and the rotation precision is higher. The suitable for deep hole processing machine tool of double rectangular guide rail to rail bed, large bearing capacity, high guide precision; guide through the quenching treatment, high wear resistance. Application in machine tool manufacturing, locomotives, ships, coal machine, hydraulic, power machinery, pneumatic machinery etc. industry boring cutting, rolling process, the workpiece roughness of 0.4 0.8 m. This series of deep hole boring machine according to the workpiece, can choose one of the following several kinds of forms of work: 1, rotating the workpiece and tool rotation and reciprocating feed motion; 2, the rotation of the workpiece, the tool does not rotate only for reciprocating feed motion; 3, the workpiece does not rotate, the tool rotation and reciprocating feed motion.

With ordinary lathe refit for deep hole processing machine tool, because of its low cost, manufacturing cycle is short and one machine multipurpose (turning, deep hole drilling cut, deep hole boring and honing) advantages and has been accepted by many manufacturers. Lathe modification for the deep hole machining machine tool mainly has two parts of the machine tool and the oil, the main part of the machine tool is the central frame, and the tail frame of the 3 parts of the oil.