DN Solutions' DNM series vertical machining center help optimize the production process

Saturday - 21/06/2025 20:42

DNM Series of Vertical Machining Center DN Solutions (DNM 4500, DNM 5700, DNM 6700), With many technological improvements optimizing accuracy, the new DNM series not only enhances productivity but is also environmentally friendly and always trusted in modern industries: Mold processing, Mechanical manufacturing, Automotive and aviation, Electronics and medical.

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Global Standard Vertical Machining Center DN Solutions (formerly Doosan Machine Tools) has launched its new DNM Series of maching centers (DNM 4500, 5700, 6700), enhanced versions of its global bestselling DNM II Series that are designed to machine parts with even higher productivity and accuracy. By applying the concept of Reliability Beyond Expectations, DI’s new DNM Series realizes greater productivity, operator convenience, and eco-friendliness, exceeding yet again the users' expectations.

- The New DNM Series offers larger cutting space, table size and maximum load while maintaining the same footprint as the previous DNM II Series, as well as a faster tool change time for improved productivity. The New DNM Series is equipped with direct-coupled type spindles (8000 / 12000 rpm, 18.5/11 kW) – and a thermal error compensation system, which are essential for stable machining, as standard features. Furthermore, the lubrication of the axis travel system has been changed from oil to grease type, greatly reducing maintenance costs and improving the work environment.

- Highest Machining Capacity of the Class The New DNM Series offers a cutting space 6% larger than that of previous models, with increased X and Y travel distance, for the same machine footprint. Table size has been enlarged by 14% to facilitate the processing of larger work pieces with more complex shapes and more space for additional rotary table, while the maximum table load has been increased by 25% to accept heavier workpieces. Increased spindle power and torque compared to the previous models boast maximized cutting capacity. In addition, the direct drive spindle provides improved acc/dec rates which reduce spindle start/stop time and improves the productivity of rigid tapping.

- Standard Direct-coupled Spindle for Higher Productivity The New DNM Series adopts the direct-coupled type spindle (8000 r/min, 18.5/11 kW) in place of the belt-driven type as a standard feature, greatly reducing vibration and noise from the spindle during high-speed operation. Tool change time is reduced by 14% compared to the previous models and idling time is further reduced with improved spindle and feed shaft acceleration and deceleration performance. Direct-coupled spindles can also reduce thermal displacement by about 40%, enabling more stable machining. In addition, Doosan's unique themal error control system substantially reduces the influence of heat on machining accuracy.

- Friendliness to the Environment and the Operator Unlike previous models which used slideway oil, the New DNM Series employs the grease lubrication system, improving work environment and reducing the annual maintenance cost by 55%. Dispensing with the inconvenience of oiling the machine every three days, users only need to grease it once every three months. In addition, since the slideway oil does not mix with the coolant, no oil skimmer is required and no unpleasant odors are generated.

- Convenience The New DNM Series features the Auto Recovety function, thus resolving the problem of Changer Arm stoppage during operation and enhancing the operator's convenience. In addition, E.O.P (Easy Operation Package) function can be observed through pop-up windows and Multi Machine Monitor function is provided as standard to maximize operator's convenience.

Specifications

Item	Unit	DNM 4500	DNM 5700	DNM 6700
Max. spindle speed	r/min	8000 {8000, 12000}
Max. spindle motor power	kW	18.5 /11 {8000 r/min : 15/11} {12000 r/min : 18.5/11}
Tooling taper	TAPER	ISO #40, 7/24 TAPER
Table size	mm	1000 x 450	1300 x 570	1500 x 670
Max. table loading capacity	kg	600	1000	1300
Travel (X/ Y/ Z)	mm	800 / 450 / 510	1050 / 570 / 510	1300 / 670 / 625
NC system	-	DOOSAN FANUC i

Popular Applications of DNM DN Solutions
DN Solutions DNM CNC milling machines are renowned for their high precision, powerful performance, and superior durability. Thanks to these advantages, the series is widely applied in various manufacturing and industrial fields.

- Mold Machining:
The machine allows for extremely smooth and highly precise machining of mold surfaces, meeting the stringent requirements of the plastic injection and metal casting industries.
Stable operation ensures consistent quality among mold products.
Additionally, its speed and effective thermal compensation capabilities help shorten machining time and optimize production costs.

- Mechanical Manufacturing:
DN Solutions DNM series CNC milling machines are suitable for producing highly complex machine parts that require absolute precision.
Durable operation, along with a quick tool change system, helps optimize production cycles in industrial lines.
Notably, the machine provides excellent support for machining difficult-to-cut materials such as hardened steel and titanium alloys.

- Automotive and Aerospace:

DN Solutions DNM machines meet the requirements for machining engine components, transmission systems, and chassis with high precision and tight tolerances.
Fast cutting speeds and the ability to maintain dimensional stability during long-term operation ensure the industry's stringent standards are met.
Furthermore, thanks to its ability to integrate 4-5 axis rotary tables, DNM also supports the machining of complex geometric parts in the aerospace sector.

- Electronics and Medical:
DN Solutions DNM CNC milling machines enable the production of electronic components with compact sizes and intricate profiles, meeting micro-precision requirements.
In the medical industry, DNM is used to machine surgical instruments and medical device components that demand extremely high surface quality.
Excellent temperature and vibration control capabilities ensure that output products meet international safety and quality standards.