Doosan Machine Tools Horizontal Machining Centers

Doosan DMC 630

$500,000 - $750,000 Updated 2026-03-16

Key Specifications

X Travel

900 mm (35.4 in)

Y Travel

900 mm (35.4 in)

Z Travel

900 mm (35.4 in)

Spindle Taper

BT50 / CAT50

Tool Capacity

60+1 tools (ATC)

Rapid Traverse

60 m/min

Overview

The Doosan DMC 630 is a 630 mm pallet horizontal machining center — a step up from the DMC 500 in workpiece capacity, targeting the production machining of larger automotive, energy, and aerospace components that require HMC capability beyond the 500mm pallet class. The 630mm pallet is the industry's most common HMC pallet size for large-part production, and the DMC 630 positions Doosan in this segment against Mazak HCN-6800, Makino a81nx, and Okuma MA-600HII.

The DMC 630's 630 x 630 mm pallet and 900 x 900 x 900 mm machining envelope accommodate large automotive transmission cases, large hydraulic manifolds, turbine housings, and aerospace structural components that push the boundaries of 500mm pallet machines. The B-axis pallet rotation (1° increments standard, 0.001° optional) enables full 4-face prismatic machining with the fixture repeatability that production aerospace and automotive machining requires.

Doosan's 50-taper BT50/CAT50 spindle (standard on the DMC 630) provides the rigidity needed for heavy roughing of cast iron and hardened steel components. The 35 kW spindle power at 8,000 RPM (10,000 RPM option) covers the full range from aggressive cast iron stock removal to moderate-speed finishing of steel and aluminum components. The 60+1 tool ATC provides sufficient capacity for complex multi-operation prismatic part programs.

At $500,000-$750,000, the DMC 630 competes in the 630mm HMC segment where Mazak and Makino have historically dominated. Doosan's value positioning and improving dealer network are gaining market share in North America, particularly with tier-1 automotive suppliers seeking cost reductions on HMC investments.

Full Specifications

Parameter	Value
Pallet Size	630 x 630 mm (24.8 x 24.8 in)
Table Load Capacity	1,000 kg (2,205 lb)
X-Axis Travel	900 mm (35.4 in)
Y-Axis Travel	900 mm (35.4 in)
Z-Axis Travel	900 mm (35.4 in)
Spindle Speed	8,000 RPM (10,000 RPM option)
Spindle Taper	BT50 / CAT50
Spindle Motor Power	35 kW (46.9 hp)
Tool Capacity	60+1 tools (ATC)
Pallet Count	2 pallets (standard)
B Axis Indexing	1° increments (0.001° optional)
Rapid Traverse Rate	60 m/min
Positioning Accuracy	± 0.003 mm
CNC Control	Fanuc 31iB (Siemens 840D optional)
Machine Weight	~25,000 kg (55,115 lb)
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Strengths & Limitations

Strengths

630mm pallet and 900mm³ machining envelope covers large transmission cases, turbine housings, and aerospace structural brackets
35 kW BT50 spindle provides aggressive stock removal capability for production machining of large cast iron and steel components
Dual-pallet cycling maintains high spindle utilization for production environments — load/unload during machining
1,000 kg table load capacity handles heavy fixtures and large workpieces common in energy and automotive production
60+1 tool ATC provides sufficient capacity for complex prismatic part programs with many tool changes

Limitations

25,000 kg machine weight requires heavy foundation engineering and significant site preparation time
$500K-$750K requires production volume justification — not a general-purpose investment
Doosan's 630mm HMC service experience in North America is less extensive than Mazak, Makino, or Okuma in this segment
8,000 RPM base spindle speed limits the DMC 630 for high-speed aluminum machining — consider the 10K option for aluminum production

Best For

Automotive tier-1 suppliers machining large transmission cases, differential housings, and engine blocks in grey iron and aluminum Energy equipment manufacturers machining large pump bodies, valve housings, and turbine components in steel and cast iron Aerospace subcontractors machining large structural brackets and landing gear components requiring 4-face access Large hydraulic component manufacturers producing manifolds, cylinders, and hydraulic motor housings in multi-face operations Job shops running high-value large prismatic parts requiring consistent multi-face machining with HMC productivity

Frequently Asked Questions

01 What is the maximum part size the DMC 630 can machine?

The DMC 630's machining envelope is 900 x 900 x 900 mm, but the practical part size is limited by the 630 x 630 mm pallet footprint and the 1,000 kg pallet load limit. Parts should fit within a cube of approximately 600 x 600 x 600 mm to allow for fixture height and clearance for spindle approach. For parts approaching the maximum envelope, Doosan's application engineers review fixture design and approach paths during machine selection.

02 How does the DMC 630 compare to the Makino a81nx?

Both are 630mm pallet HMCs competing in the production machining segment. The Makino a81nx has a strong reputation for thermal stability, precision, and Makino's excellent North American service network. The Doosan DMC 630 typically prices 15-25% lower with similar core specifications. Shops requiring Makino's premium precision and service levels, or running critical aerospace work requiring Makino's thermal management capabilities, are better served by the a81nx. For value-driven production machining of automotive parts, the DMC 630 is competitive.

03 Can the DMC 630 be equipped with a pallet pool for lights-out operation?

Yes. Doosan offers pallet pool systems for the DMC 630 in 4, 6, 8, and larger pallet configurations. The pallet pool enables unattended overnight machining of multiple fixture setups, managed through Doosan's automation control with job queue management. This configuration is increasingly common in automotive tier-1 production where 24/7 machining of prismatic part families reduces per-part cost.