B3HM-033 hydraulic double feed CNC vertical internal cylindrical honing machine is hydraulic double feed CNC vertical internal cylindrical honing machine. The reciprocating and feed of spindle are driven hydraulically. The table is driven by a servo motor, which can achieve the accurate positioning of side-by-side holes and continuous machining. This machine is mainly applied to the honing of automobile engine cylinder, hydraulic cylinder and other large and deep holes.