USED DOOSAN DNM400II – 2015

The Doosan DNM400II is a high-performance vertical machining center designed to deliver precision, productivity, and long-term reliability for modern manufacturing operations. Manufactured by Doosan Machine Tools, now known globally as DN Solutions, the DNM Series quickly became one of the company’s most successful machining center platforms due to its combination of robust construction, advanced CNC technology, and competitive operating costs. The DNM400II was specifically developed to provide manufacturers with a versatile machining solution capable of handling everything from prototype work to high-volume production machining.

The DNM400II is engineered for a wide variety of machining operations including milling, drilling, tapping, boring, contouring, and finishing. The machine is capable of machining aluminum, steel, stainless steel, cast iron, brass, copper, titanium, and engineering plastics while maintaining excellent dimensional accuracy and repeatability. Its rigid cast iron structure helps absorb cutting forces and vibration, resulting in improved surface finishes, extended tool life, and greater process stability.

The 2015 Doosan DNM400II typically features a CAT 40 spindle, high-speed rapid traverse rates, precision linear guideways, automatic tool changer, and a Fanuc CNC control system. The machine was designed to maximize productivity through efficient axis movement, fast tool changes, and dependable spindle performance. Its compact footprint allows manufacturers to maximize floor space utilization while still maintaining a generous work envelope suitable for a broad range of machining applications.

Industries such as aerospace, automotive, medical device manufacturing, defense, electronics, mold making, industrial equipment manufacturing, and contract machining commonly utilize the DNM400II because of its versatility and reliability. The machine is equally effective for low-volume custom work and continuous production environments where uptime and repeatability are critical.

One of the primary reasons the 2015 Doosan DNM400II remains highly desirable in the used CNC market is its reputation for dependable performance and strong value. Buyers can acquire a relatively modern machining center with proven technology and excellent productivity while avoiding the significant investment associated with purchasing new equipment. This combination of capability, reliability, and affordability continues to make the DNM400II one of the most popular vertical machining centers in the used CNC marketplace.

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DOOSAN DNM400II – AXIS

Specification	Value
Number of Axes	3 Axis
Simultaneous Axis Control	3 Axis
Positioning Type	CNC Controlled

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DOOSAN DNM400II – AXIS TRAVELS / WORK ENVELOPE

Specification	Value
X-Axis Travel	30″
Y-Axis Travel	17.7″
Z-Axis Travel	20.1″
Maximum Work Envelope	30″ x 17.7″ x 20.1″

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DOOSAN DNM400II – CAPACITY / TABLE

Specification	Value
Table Length	35.4″
Table Width	17.7″
Maximum Table Load	1,100 lbs
T-Slots	3

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DOOSAN DNM400II – SPINDLE

Specification	Value
Spindle Speed	12,000 RPM
Spindle Taper	CAT 40
Spindle Motor	20 HP
Drive Type	Direct Drive
Spindle Cooling	Integrated Cooling System

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DOOSAN DNM400II – TOOL CHANGER

Specification	Value
Tool Capacity	30 Tools
Tool Changer Type	Side-Mount Tool Changer
Tool-to-Tool Time	Approx. 1.2 Seconds
Maximum Tool Diameter	3.1″
Maximum Tool Weight	17.6 lbs

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DOOSAN DNM400II – CONTROL SYSTEM

Specification	Value
CNC Control	Fanuc Oi-MD
Programming Capability	Conversational and G-Code
Connectivity	Ethernet and USB
Display	High-Resolution Color LCD
Memory	Expanded CNC Memory

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DOOSAN DNM400II – COOLANT / DUST / WATER MANAGEMENT

Specification	Value
Coolant System	Flood Coolant
Through Spindle Coolant	Optional
Chip Removal	Chip Conveyor Optional
Enclosure	Fully Enclosed
Coolant Capacity	Approx. 60 Gallons

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DOOSAN DNM400II – POWER REQUIREMENTS

Specification	Value
Voltage	220V / 240V
Phase	3 Phase
Power Requirement	Approx. 30 kVA
Air Requirement	Shop Air Required

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DOOSAN DNM400II – DIMENSIONS

Specification	Value
Length	Approx. 105″
Width	Approx. 90″
Height	Approx. 105″
Weight	Approx. 11,000 lbs

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DOOSAN DNM400II – GENERAL INFORMATION

Specification	Value
Manufacturer	Doosan Machine Tools
Machine Type	Vertical Machining Center
Year	2015
Construction	Cast Iron
Country of Origin	South Korea

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INDUSTRIES THAT USE DOOSAN DNM400II

The Doosan DNM400II is utilized across a wide range of manufacturing sectors that require precision machining, dependable production capability, and flexible CNC operations.

Industries commonly utilizing the Doosan DNM400II include:

• Aerospace Manufacturing
• Automotive Manufacturing
• Medical Device Manufacturing
• Defense Manufacturing
• Electronics Manufacturing
• Mold and Die Manufacturing
• Tool and Fixture Manufacturing
• Robotics Manufacturing
• Industrial Equipment Manufacturing
• Energy Industry Suppliers
• Contract Machining
• Precision Engineering Companies
• Agricultural Equipment Manufacturing
• Research and Development Facilities
• General Machine Shops

Its balance of speed, accuracy, and reliability makes it suitable for both prototype and production environments.

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TYPICAL PARTS DOOSAN DNM400II CAN PRODUCE

The Doosan DNM400II is capable of producing a broad range of precision-machined components requiring excellent accuracy and repeatability.

Typical parts include:

• Aerospace Brackets
• Aircraft Components
• Medical Device Components
• Surgical Equipment Parts
• Mold Inserts
• Tooling Components
• Production Fixtures
• Custom Jigs
• Hydraulic Manifolds
• Pneumatic Components
• Robotics Parts
• Electronic Housings
• Heat Sinks
• Automotive Components
• Precision Aluminum Components
• Stainless Steel Components
• Titanium Components
• OEM Production Parts
• Prototype Components
• Industrial Machinery Parts

The machine’s high-speed spindle and rigid construction make it suitable for both roughing and finishing operations.

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WHY CHOOSE DOOSAN DNM400II

The Doosan DNM400II remains one of the most popular machining centers in its class because it delivers an excellent combination of productivity, reliability, and affordability. Manufacturers appreciate the machine’s ability to perform a wide range of machining operations while maintaining consistent part quality.

One of the machine’s greatest strengths is its high-speed direct-drive spindle. The 12,000 RPM spindle allows operators to efficiently machine aluminum and other materials while still providing sufficient torque for steel and stainless-steel applications. Combined with rapid axis movements and fast tool changes, the machine helps reduce cycle times and increase throughput.

The DNM400II also benefits from a rigid cast iron structure and precision linear guideways that contribute to excellent machining stability. These features help maintain accuracy during demanding machining operations while reducing vibration and improving surface finish quality.

Another significant advantage is the Fanuc control platform. Fanuc controls are widely recognized for reliability, operator familiarity, and global support availability. This simplifies training, programming, and maintenance while helping manufacturers maximize machine utilization.

Strong aftermarket support, excellent parts availability, and proven long-term durability further enhance the machine’s appeal. For manufacturers seeking a dependable vertical machining center with strong productivity characteristics, the Doosan DNM400II remains an outstanding choice.

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WHY BUY USED DOOSAN DNM400II

Purchasing a used 2015 Doosan DNM400II allows manufacturers to acquire a modern machining center while significantly reducing capital expenditures. For many shops, purchasing used equipment provides the most cost-effective path to increasing production capacity and improving operational efficiency.

One of the primary advantages of buying a used DNM400II is the substantial cost savings compared to purchasing a new machine. These savings can be reinvested into tooling, automation systems, workholding equipment, quality control systems, or additional CNC machinery. This flexibility often helps manufacturers grow more efficiently while maintaining healthy cash flow.

The DNM400II’s reputation for reliability is another major benefit. Doosan machines are widely respected for their robust construction and dependable performance. Many units continue operating successfully for years with proper maintenance and routine servicing.

The machine’s versatility further enhances its value. It can support a broad range of machining applications across multiple industries, allowing shops to maximize utilization and pursue a wider variety of customer projects. This flexibility often translates directly into increased revenue opportunities.

Another important factor is the availability of service support and replacement parts. Because the DNM Series remains popular worldwide, many support providers continue to offer parts, service, and technical assistance for these machines.

For manufacturers seeking modern machining capability, strong productivity, and excellent return on investment, the used 2015 Doosan DNM400II remains one of the strongest values available in the used CNC machine market.

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HOW MUCH DOES A USED DOOSAN DNM400II COST?

A used 2015 Doosan DNM400II typically sells for between $28,000 and $55,000, depending on machine condition, spindle hours, installed options, maintenance history, tooling packages, and regional market demand.

Machines near the lower end of the price range generally have higher operating hours, fewer optional features, or cosmetic wear from production use. Machines near the upper end often include valuable options such as through-spindle coolant, probing systems, chip conveyors, rotary tables, upgraded software packages, and extensive tooling packages.

Machine condition remains one of the most important pricing factors. Buyers commonly evaluate spindle condition, axis accuracy, lubrication systems, machine geometry, maintenance records, and overall appearance before determining value. Machines with documented maintenance histories and lower spindle hours generally command premium pricing because they present less ownership risk.

Tooling and accessories can significantly impact the final selling price. CAT 40 tool holders, vises, fixture systems, rotary tables, probes, and inspection equipment may add thousands of dollars in value while reducing startup costs for the buyer.

Regional demand also influences pricing. Areas with strong aerospace, automotive, medical, and contract manufacturing industries often support higher resale values for versatile machining centers such as the DNM400II.

Compared to purchasing a new vertical machining center with similar capabilities, a used 2015 Doosan DNM400II offers substantial savings while still delivering modern CNC technology, dependable performance, and excellent productivity. For manufacturers looking to expand machining capacity efficiently, the DNM400II remains one of the best investments available in the used CNC equipment market.