Doosan Series Repair
Doosan Horizontal Repair (NHM / NHP / HC)
Doosan's horizontals — NHM 4000 through 8000, NHP 4000 through 6300, HC 400 and 500 — are production-focused platforms with pallet changers and B-axis indexing. Most calls come from the pallet changer or the B-axis.
Models in this series we service
- NHM 4000
- NHM 5000
- NHM 6300
- NHM 8000
- NHP 4000
- NHP 5000
- NHP 6300
- HC 400
- HC 500
Common failure patterns
- Pallet changer faults — clamp pressure, pallet seat, position sensors.
- B-axis indexer wear from heavy-cut production.
- Coolant intrusion at the pallet seal on high-coolant work.
- Chip evacuation reliability — auger and conveyor work.
Controls used on this series
NHM, NHP, and HC ship on Fanuc 30i. The multi-axis pallet handling fits the 30i family.
Lead time
Lead time depends on the model, the failure mode, and parts availability. Diagnostic is fast; full rebuilds run 3 to 5 weeks on most jobs. We scope each job individually rather than quoting a generic window.