DBM Series

Q: What is the DBM 2550 used for?

The DN Solutions DBM 2550 is a double-column bridge machining center designed for heavy-duty cutting of large molds, dies, aerospace structural components, turbine housings, and large weldments. Its 206.7″ X-travel and 48,400-lb table capacity handle workpieces that exceed the envelope of any standard vertical machining center.

Q: What other models are in the DBM series?

The DBM series includes the DBM 2030, DBM 2540, and DBM 3050 — ranging from mid-size double-column work up to the DBM 3050's larger table. Choose by X-travel and table load requirements.

The DN Solutions (formerly Doosan Machine Tools) Heavy Duty DBM Series Bridge Mill features a 50 taper, 8,000 rpm RAM type spindle with up to 74 horsepower and 745 ft-lbs of torque. The DBM offers an expanded work envelope to take on the biggest mold and die applications and introduces an automatic attachment changer capable of handling right angle heads, extensions, high-speed spindle attachments, and universal heads.

What Is the DN Solutions DBM 2550?

The DN Solutions DBM 2550 is a fixed cross-rail double-column bridge machining center built for heavy-duty cutting of large structural parts, molds, and dies. Its built-in 8,000 RPM spindle delivers 73.8 HP and 744.6 ft-lbs of torque through a 380×380mm ram — the largest cross-section in its class — mounted on eight anti-friction guides for rigidity and vibration damping. A 5,000×2,000mm table holds up to 48,400 lbs, and 206.7″ of X-axis travel accommodates the largest workpieces in aerospace, energy, and mold/die work. Ellison Technologies is an authorized DN Solutions distributor serving manufacturers across our multi-state territory; browse the full line of machining centers to compare models.

Mold, Die, and Large Tooling

The DBM 2550's 206.7″ X-travel and 48,400-lb table capacity make it the standard choice for machining large injection molds, progressive dies, and forming tools — including automotive stampings dies, plastic injection tooling, and forging tooling. The 380×380mm box guideway ram maintains rigidity across the full Z-stroke, which means consistent surface finish from roughing to finish passes without repositioning the part. Five-face machining via the automatic 90° angle head attachment completes multiple faces in a single setup, eliminating the fixturing overhead that typically inflates cycle time on large tooling.

Aerospace and Structural Components

For aerospace structural components — wing ribs, fuselage frames, engine mounts, large bulkheads — the DBM 2550 delivers ±0.007mm/m positioning accuracy (with linear scales) and ±0.003mm repeatability across more than 17 feet of travel. The Renishaw RMP600 spindle probe handles in-process part measurement on the machine, eliminating a separate CMM step. TSC at 290 psi keeps cutting tools cool during titanium and Inconel passes without interruption. For long-term machine reliability, Ellison's spindle rebuild team supports DN Solutions bridge mills across our service territory.

Energy and Heavy Industry

Large turbine housings, pump bodies, valve manifolds, and heavy rotating components for the energy and oil & gas sector fit the DBM 2550's work envelope with room to spare. The 22,000kg table load rating handles the heaviest castings and weldments, and the optional 70 bar (1,000 psi) high-pressure TSC supports through-coolant tooling for the deep-bore work common in energy sector parts. Shops running high-volume energy components often pair bridge mills with robotic automation for lights-out tending between shifts.

FAQ Section

What is the DBM 2550 used for?

The DN Solutions DBM 2550 is a double-column bridge machining center designed for heavy-duty cutting of large molds, dies, aerospace structural components, turbine housings, and large weldments. Its 206.7″ X-travel and 48,400-lb table capacity handle workpieces that exceed the envelope of any standard vertical machining center.

How does the DBM 2550 differ from a standard VMC for large part work?

Where a VMC has a fixed column and limited X-travel, the DBM 2550's bridge design moves the table under a fixed crossbeam, delivering 206.7″ of X-travel on a 5,000×2,000mm table. The fixed cross-rail design also keeps spindle mass constant throughout the cut, reducing dynamic deflection on long-reach operations. See the full bridge mills lineup to compare travel and table configurations.

What spindle power does the DBM 2550 have?

The built-in ram spindle produces 73.8 HP (55 kW) and 744.6 ft-lbs (1,009 Nm) of torque at a max speed of 8,000 RPM. The 380×380mm ram cross-section — largest in its class — provides the structural rigidity to use that power at full depth on hard materials.

Can the DBM 2550 machine five faces in one setup?

Yes. The DBM 2550 includes a C-axis with 1° Curvic coupling and an automatic attachment changer (AAC) that stores a 90° angle head alongside the standard ram spindle. Five-face machining runs under program control — no manual head swap, no re-fixturing.

What accuracy does the DBM 2550 hold over long travels?

With linear scale feedback on X, Y, and Z, the DBM 2550 achieves ±0.007mm/m positioning accuracy and ±0.003mm repeatability. Spindle thermal compensation and ballscrew bearing cooling maintain those tolerances across full production shifts.

What other models are in the DBM series?

The DBM series includes the DBM 2030, DBM 2540, and DBM 3050 — ranging from mid-size double-column work up to the DBM 3050's larger table. Choose by X-travel and table load requirements.