DNM Series

The DNM Series delivers the most value for your investment as the best-in-class vertical machining center fully equipped with the most standard features built-in. This powerfully productive machine features a BIGPLUS spindle, dual chip augers, FANUC 0i-M controls with DN Solutions (formerly Doosan Machine Tools) Easy Operation Package (EOP), through-spindle coolant, spindle chiller, and more. Get the machine that will give you the power to MAKE MORE.

Spindle Taper: CAT 40

Spindle RPM: 12,000 RPM

X Axis Travel: 20.5"

View DNM 4000

Spindle Taper: CAT 40

Spindle RPM: 8,000 RPM

X Axis Travel: 31.5"

View DNM 4500 4th GEN

Spindle Taper: CAT 40

Spindle RPM: 15,000 RPM

X Axis Travel: 31.5"

View DNM 4500S 4th GEN

Spindle Taper: CAT 40

Spindle RPM: 8,000 RPM

X Axis Travel: 41.3"

View DNM 5700 4th GEN

Compact Footprint, Full-Sized Capabilities

The DNM 4000 delivers full production power in a compact vertical machining center optimized for space-limited shops. It inherits core design principles from larger DN Solutions machines—such as a rigid one-piece Meehanite cast iron bed, direct-coupled 12,000 RPM spindle, and roller linear guideways—while offering a slim layout ideal for cellular manufacturing. With 520 x 400 x 480 mm travels (X/Y/Z) and a 400 kg table load capacity, this machine handles a wide range of components in aerospace, medical, die/mold, and general precision industries. Its reduced floor space of 2,858 mm x 1,650 mm allows tight shop layouts without sacrificing performance.

High-Speed Direct Drive Spindle with Integrated Cooling

At the heart of the DNM 4000 is a 12,000 RPM, 11/18.5 kW (15/25 hp) direct-coupled spindle capable of delivering 118 Nm of torque. The beltless design eliminates vibration and power loss, ensuring efficient high-speed cutting and excellent surface finish. The spindle is supported by a cartridge-type bearing system and paired with an oil jacket chiller to regulate thermal effects during extended runs. Whether roughing aluminum or finishing hardened steel, the DNM 4000 maintains tight tolerances with consistent accuracy thanks to smart thermal monitoring that compensates for spindle heat growth in real time.

Tooling and Motion for Agile, High-Cycle Operations

The cam-type, double-arm ATC accommodates 20 CAT 40 tools, enabling fast tool exchanges with a 1.3-second tool-to-tool and 2.6-second chip-to-chip time. The ATC supports up to 5 kg tool weight, 90 mm tool diameter (125 mm with adjacent pots empty), and 270 mm tool length. Motion is powered by servo-driven, pre-tensioned 32 mm ball screws directly mounted to the axes, eliminating backlash and optimizing feed precision. With rapid traverse rates of 48 m/min (1,889 ipm) on all axes and AICC II lookahead on the FANUC control, the machine is tuned for fast-paced, reliable production.

Intelligent Automation and Protection Systems

Standard features include through-spindle coolant (20 bar), air blast, bed flushing, and a 200-liter coolant tank to maintain clean chip evacuation. The machine is Renishaw probe-ready, allowing easy integration of part or tool probing. A tool load monitoring system protects against tool breakage and detects wear using real-time spindle and axis load data, while adaptive feedrate control (AFC) automatically adjusts feed based on cutting load, optimizing cycle times and extending tool life. The eco-friendly grease lubrication system requires fewer maintenance intervals and reduces overall lube costs.

Built for Long-Term Accuracy

Every structural element of the DNM 4000 contributes to rigidity and precision:

Roller linear guideways (25–35 mm) spaced for optimal load distribution
Heavy ribbed column and saddle castings resist torsion and deflection
Preloaded ball screws with angular contact bearings for thermal stability
Fully enclosed guarding and telescopic covers to contain chips and coolant

Combined, these features ensure micron-level accuracy and repeatability over years of operation, even in high-duty-cycle environments.

FAQ Section

What types of parts are ideal for the DNM 4000?

The DNM 4000 is ideal for small to medium parts requiring precision, fast cycle times, and flexible tooling. It performs especially well in high-volume part production for aerospace brackets, medical components, tooling plates, and precision housings. The 400 kg load capacity and compact footprint make it a versatile fit for job shops and automation cells.

How does the DNM 4000 maintain accuracy during long shifts?

Thermal growth can impact dimensional accuracy over time. The DNM 4000 combats this with an oil-cooled spindle jacket, smart thermal monitoring software, and preloaded ball screws. These features, paired with a vibration-dampening cast iron frame and precision bearings, ensure that even after hours of operation, your part tolerances remain tight.

Can the DNM 4000 be used in automated cells?

Yes. With probe-ready integration, tool monitoring, and adaptive feedrate control, the DNM 4000 is well-equipped for unattended machining. Its fully enclosed guarding, coolant flushing, and chip management systems make it compatible with pallet changers and robotic loading systems. You can confidently add it to a lights-out manufacturing setup.

What’s the difference between the DNM 4000 and larger DNM models?

While larger DNM models offer extended travels and higher tool capacity, the DNM 4000 delivers equivalent speed, rigidity, and accuracy in a smaller package. It shares the same spindle, ATC design, control software, and structural rigidity—but optimized for lower part volumes or smaller part geometries where floor space and efficiency are key.

How user-friendly is the DNM 4000 for new operators?

The machine is equipped with a FANUC 0i-Plus control and an intuitive iHMi touchscreen interface. It includes EZ Guide conversational programming, tool and part probing readiness, and detailed visual menus. Operators can easily program, set up, and monitor jobs even if they are new to G-code or CNC environments.

Whether it’s a replacement part or an accessory to boost your productivity, we offer a wide selection of products from a large variety of vendors to bring you the best accessories at the best price.