2006 Doosan DHP-4000 CNC Horizontal Machining Center

The Doosan DHP-4000 is a horizontal machining center with a reputation for rigid, production-grade performance that has made it a staple in high-volume part-family and fixture-intensive shops. This 2006 unit is a BT40, 14,000 RPM twin-pallet configuration with travels of 730 × 730 × 780 mm, a 400 × 400 mm pallet footprint, a 60-position tool magazine, through-spindle coolant (TSC), high-pressure coolant, and an integrated chip auger — giving operators the thermal control, tool capacity, and uninterrupted cycle overlap needed for multi-hour tombstone runs.

Compared to the predecessor Daewoo ACE-HM500, the DHP-4000 introduced meaningful engineering upgrades that translate directly into higher throughput: faster rapids (50 m/min vs. the ACE-HM500's ~32 m/min class), a higher optional top spindle speed (14,000 RPM vs. the ACE-HM500's 12,000 RPM ceiling), a larger tool magazine extending to 60 positions, and a more rigid structure designed for heavier cuts and better thermal stability. Buyers stepping up from an ACE-HM500 get meaningfully more spindle, more tooling, and more cutting speed — without paying a flagship price.