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

1. SUBMIT FORM 2. CHECK YOUR EMAIL 3. CLICK EMAIL LINK TO BUILD YOUR PERSONALIZED QUOTE

High-Performance Machining for Large Parts

The DNM 750 II is a high-speed, high-precision vertical machining center (VMC) engineered for large-part manufacturers who demand reliability, power, and accuracy. With a rigid Meehanite cast iron bed, direct-coupled 12,000 rpm spindle, and adaptive feedrate control, this machine excels in high-volume environments across aerospace, die/mold, and general machining sectors. Designed to support heavier workpieces with enhanced thermal stability, the DNM 750 II delivers dependable cutting performance—even in challenging applications.

Key Capabilities & Design Highlights

Every aspect of the DNM 750 II is optimized for durability and performance. Its extra-wide linear roller guides and oversized pre-tensioned ball screws (45mm on all axes) provide unmatched structural integrity and feed precision. The 30-tool double arm ATC ensures quick changeovers, while the Big Plus CAT 40 spindle system enhances tool-to-spindle contact for vibration-free cutting.

Travel: X: 64.2", Y: 30", Z: 25.6"
Spindle Power: 21 hp (15.6 kW), 12,000 rpm, 122 ft-lbs torque
Table Capacity: 3,306 lbs, 64.2" x 29.9" surface area
Rapid Traverse: Up to 1,181 ipm
High-precision repeatability down to 0.0002"

Intelligent Thermal & Tool Monitoring Systems

To ensure consistent performance over long cycles, the DNM 750 II integrates an oil-jacket spindle chiller and ball nut cooling system. It’s also equipped with Adaptive Feedrate Control and Tool Load Monitoring—both of which dynamically adjust operations to avoid tool wear, optimize speeds, and protect part integrity. These systems are ideal for shops running unattended or requiring close-tolerance production.

Built-In Automation and Probing Readiness

Operators benefit from a portable manual pulse generator (MPG) for fine manual positioning and full Renishaw probe readiness, including an OMI-2T optical receiver and GUI software. Whether you're probing parts or setting tools, the DNM 750 II helps reduce setup time and increases spindle uptime.

FAQ Section

What industries is the DNM 750 II best suited for?

The DNM 750 II is ideal for aerospace, die/mold, medical device, and general precision machining industries. With its large travels, high-torque spindle, and adaptive control systems, it excels in handling complex parts, hard materials, and tight tolerances. Shops requiring high-volume part production or frequent changeovers benefit from its reliable automation features, including tool load monitoring, Renishaw probing compatibility, and a 30-tool ATC.

How does the DNM 750 II maintain accuracy during long cycles?

Thermal distortion is a common challenge in precision machining, especially during long runs. The DNM 750 II combats this using an oil-jacket spindle chiller and ball nut cooling on all axes. These systems regulate temperature changes in the spindle and drive systems, reducing the risk of thermal growth. Combined with Meehanite castings and roller guides, these features provide high dimensional stability even during aggressive cuts.

What makes the spindle system unique on the DNM 750 II?

The DNM 750 II features a 12,000 rpm direct-coupled Big Plus CAT 40 spindle. The Big Plus design ensures simultaneous contact at both the flange and taper of the tool holder, increasing rigidity and reducing vibration. This setup improves surface finish, tool life, and overall machine stability—critical for high-speed machining or when cutting difficult materials like titanium or hardened steel.

What are the benefits of Adaptive Feedrate Control and Tool Load Monitoring?

Adaptive Feedrate Control (AFC) continuously adjusts the machine's feedrate based on spindle load, which prevents tool overloading and optimizes cutting efficiency. Tool Load Monitoring (TLM), on the other hand, detects underload and overload conditions to identify worn or broken tools. Together, these systems protect your investment, reduce part scrap, and help maintain consistent quality in unattended or lights-out machining environments.

Is the DNM 750 II suitable for heavy parts and fixturing?

Absolutely. With a robust table supporting up to 3,306 lbs and fully enclosed guarding for safe chip and coolant containment, the DNM 750 II is built for large-part applications. Its heavy-duty roller guides and reinforced casting support high static and dynamic loads, making it ideal for demanding workholding setups, rotary tables, or multi-part fixturing scenarios.

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.