USED DOOSAN DNM 750 II

The Doosan DNM 750 II is a large-capacity CNC vertical machining center (VMC) engineered for high-speed, high-precision machining of large and heavy components. It is one of the most capable machines in the DNM series, designed specifically for manufacturers who require extended travels, strong spindle performance, and consistent accuracy in demanding production environments.

Built with a rigid Meehanite cast iron structure and wide roller-type linear guideways, the DNM 750 II provides exceptional stability and vibration damping, even during aggressive cutting operations. The machine is equipped with a BIG-PLUS CAT 40 spindle, typically running at 12,000 RPM with approximately 21 HP power, delivering a strong balance of torque and speed for both heavy roughing and fine finishing.

With axis travels of approximately 1,630 × 762 × 650 mm (64″ × 30″ × 25.6″), the DNM 750 II offers a large working envelope suitable for oversized parts, multi-part fixtures, and complex setups. It also features a large table (1630 × 760 mm) with a load capacity of up to 1,500 kg, making it ideal for heavy workpieces.

Advanced features such as adaptive feedrate control, tool load monitoring, spindle cooling, and probing readiness enhance productivity, accuracy, and tool life. The DNM 750 II is widely used in aerospace, die & mold, automotive, and general engineering industries.

DOOSAN DNM 750 II SPECIFICATIONS

WHY BUY USED DOOSAN DNM 750 II

Buying a used Doosan DNM 750 II is a strong investment for shops that need large machining capacity and high-performance capabilities without the high cost of a new machine.

One of the biggest advantages is its large work envelope. Compared to smaller VMCs, the DNM 750 II allows machining of bigger parts or multiple components in a single setup, significantly improving efficiency and reducing setup time.

Another key benefit is its powerful spindle system. The 12,000 RPM BIG-PLUS spindle provides excellent rigidity and cutting performance, allowing the machine to handle both heavy-duty cutting and high-speed finishing across a wide range of materials.

The machine is also designed for high productivity. With rapid traverse rates up to ~30 m/min and a fast 30-tool automatic tool changer, it minimizes idle time and supports continuous production.

Additionally, features like thermal compensation, adaptive feed control, and tool monitoring help maintain accuracy during long machining cycles, reduce tool wear, and prevent part scrap—making it ideal for both job shops and high-volume production environments.

HOW MUCH DOES A USED DOOSAN DNM 750 II COST?

The cost of a used Doosan DNM 750 II depends on factors such as year, condition, spindle hours, and included options.

Typically, used machines range between $70,000 and $160,000. Older models or base configurations are priced on the lower end, while newer machines with larger tool magazines, probing systems, and high-speed spindle options command higher prices.

Machines equipped with features such as through-spindle coolant, 4th-axis capability, Renishaw probing, and chip conveyors tend to have higher resale value due to increased productivity and automation readiness.

Overall, the DNM 750 II offers excellent value for manufacturers needing a large, powerful, and production-ready vertical machining center.