HITACHI SEIKI HT-23J CNC LATHE

Technical Description

The Hitachi Seiki HT-23J is a two-axis CNC turning center engineered for precision chuck and center work operations. This 1999 model features a 17.7" swing over bed with a 10" hydraulic three-jaw chuck, capable of machining workpieces up to 13.38" in diameter and 23.6" in length, accommodating bar stock up to 2.6" capacity. The machine utilizes a robust 20 HP spindle motor with variable speed ranging from 30 to 4000 RPM, paired with an A2-8 spindle nose and 3" through-hole diameter for enhanced flexibility. The turret configuration consists of 10 VDI stations with 1" square shank capacity and 1.5" boring bar compatibility. Travel capabilities include 9" on the X-axis and 24.8" on the Z-axis, with rapid traverse speeds reaching 1181 IPM for efficient cycle times. The power-operated tailstock features MT#5 taper with 20.4" stroke length for extended workpiece support. Control is managed by the SEICOS J300L multi-control system (YASNAC), enabling simultaneous two-axis operation with 0.001mm input increment resolution, supporting positioning, linear, and circular interpolation. The machine includes automatic toolsetter for consistent tool height offset management. Weighing approximately 10,560 lbs, this turning center is ideal for small to medium production runs requiring reliable precision and repeatability.