USED DOOSAN DNM750II – 2018

The Doosan DNM750II is a large-capacity vertical machining center designed to deliver exceptional machining performance, rigidity, and productivity for manufacturers that require a generous work envelope without moving into a larger and more expensive horizontal machining platform. Built by Doosan Machine Tools, now operating as DN Solutions, the DNM750II is part of the highly successful DNM Series and has become a popular choice among aerospace suppliers, heavy equipment manufacturers, mold makers, energy companies, and contract machining facilities. The machine combines a rigid cast iron structure, high-speed spindle technology, precision guideways, and advanced CNC controls to provide excellent machining accuracy and long-term reliability.

The DNM750II is designed to perform milling, drilling, tapping, boring, contouring, pocketing, and finishing operations on a wide range of materials including aluminum, steel, stainless steel, cast iron, titanium, brass, and engineering plastics. Its large travel capacity allows manufacturers to machine oversized workpieces, multiple-part fixtures, and large production components while maintaining tight tolerances and excellent surface finishes. The machine’s rigid construction minimizes vibration during aggressive cutting operations and helps extend tool life while improving part quality.

A typical 2018 Doosan DNM750II features a 12,000 RPM CAT 40 spindle, 30-position side-mount automatic tool changer, Fanuc i-Series CNC control, through-spindle coolant capability, and a spacious work envelope measuring over 64 inches in X-axis travel. The machine offers the speed and efficiency of a 40-taper machining center while providing a work area comparable to many larger machines. This combination makes it particularly attractive for manufacturers requiring flexibility across a broad range of part sizes.

Industries such as aerospace, automotive, energy, oil and gas, mold manufacturing, defense, agricultural equipment, and industrial machinery production commonly utilize the DNM750II because of its versatility and productivity. The machine is equally effective for prototype work, low-volume custom projects, and high-volume production environments.

One of the primary reasons the 2018 Doosan DNM750II remains highly desirable in the used CNC market is its combination of large travels, modern CNC technology, and excellent reliability. Buyers can acquire a highly capable machining center with substantial machining capacity while achieving significant savings compared to purchasing a new machine.

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DOOSAN DNM750II – AXIS

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

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DOOSAN DNM750II – AXIS TRAVELS / WORK ENVELOPE

Specification	Value
X-Axis Travel	64.2″
Y-Axis Travel	30.0″
Z-Axis Travel	25.6″
Maximum Work Envelope	64.2″ x 30.0″ x 25.6″

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DOOSAN DNM750II – CAPACITY / TABLE

Specification	Value
Table Length	64.2″
Table Width	29.9″
Maximum Table Load	3,300 lbs
T-Slots	5

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DOOSAN DNM750II – SPINDLE

Specification	Value
Spindle Speed	12,000 RPM
Spindle Taper	CAT 40
Spindle Motor	21 HP
Drive Type	Direct Drive
Spindle Cooling	Integrated Chiller

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DOOSAN DNM750II – TOOL CHANGER

Specification	Value
Tool Capacity	30 Tools
Tool Changer Type	Side Mount Automatic Tool Changer
Tool-to-Tool Time	Approx. 1.3 Seconds
Maximum Tool Weight	17.6 lbs
Maximum Tool Diameter	4.9″

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DOOSAN DNM750II – CONTROL SYSTEM

Specification	Value
CNC Control	Fanuc i-Series
Programming Capability	Conversational and G-Code
Connectivity	USB and Ethernet
Memory	Expanded CNC Memory
Display	Color LCD Screen

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DOOSAN DNM750II – COOLANT / DUST / WATER MANAGEMENT

Specification	Value
Coolant System	Flood Coolant
Through Spindle Coolant	Equipped on Many Machines
Coolant Pressure	Up to 20 Bar
Chip Removal	Chip Conveyor
Enclosure	Fully Enclosed

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DOOSAN DNM750II – POWER REQUIREMENTS

Specification	Value
Voltage	220V
Phase	3 Phase
Power Requirement	Approx. 43 kVA
Air Requirement	90 PSI Shop Air

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DOOSAN DNM750II – DIMENSIONS

Specification	Value
Length	Approx. 151″
Width	Approx. 137″
Height	Approx. 125″
Weight	Approx. 29,760 lbs

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DOOSAN DNM750II – GENERAL INFORMATION

Specification	Value
Manufacturer	Doosan Machine Tools
Machine Type	Vertical Machining Center
Year	2018
Construction	Meehanite Cast Iron
Country of Origin	South Korea

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INDUSTRIES THAT USE DOOSAN DNM750II

The Doosan DNM750II is widely utilized by manufacturers requiring a large machining envelope combined with high productivity and precision.

Industries commonly using the Doosan DNM750II include:

• Aerospace Manufacturing
• Defense Manufacturing
• Oil and Gas Industry
• Energy Equipment Manufacturing
• Agricultural Equipment Manufacturing
• Heavy Equipment Manufacturing
• Mold and Die Manufacturing
• Tool and Fixture Manufacturing
• Industrial Machinery Manufacturing
• Automotive Manufacturing
• Contract Machining
• Robotics Manufacturing
• Transportation Equipment Manufacturing
• Precision Engineering Companies
• General Machine Shops

Its large table capacity and extensive axis travels make it particularly suitable for oversized components and multi-part fixturing applications.

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TYPICAL PARTS DOOSAN DNM750II CAN PRODUCE

The Doosan DNM750II is capable of manufacturing a broad range of medium-to-large precision components across numerous industries.

Typical parts include:

• Aerospace Structural Components
• Aircraft Brackets
• Mold Bases
• Mold Cavities
• Production Fixtures
• Welding Fixtures
• Hydraulic Manifolds
• Pump Components
• Valve Bodies
• Gearbox Housings
• Agricultural Equipment Components
• Energy Industry Components
• Machine Bases
• Robotics Frames
• Automotive Tooling
• Industrial Machinery Components
• Aluminum Structural Parts
• Stainless Steel Components
• Prototype Components
• OEM Production Parts

The machine’s large work envelope allows manufacturers to machine larger parts in a single setup, reducing handling and improving accuracy.

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WHY CHOOSE DOOSAN DNM750II

The Doosan DNM750II stands out because it offers a large machining envelope while maintaining the speed and efficiency of a 40-taper machining center. Many manufacturers need the capacity to machine large workpieces but do not require the higher tooling costs associated with 50-taper machines. The DNM750II effectively bridges this gap.

One of the machine’s biggest advantages is its travel capacity. With over 64 inches of X-axis travel and 30 inches of Y-axis travel, the machine can accommodate large fixtures, oversized components, and multiple-part production setups. This flexibility helps manufacturers maximize machine utilization and reduce setup time.

The machine also benefits from a high-speed 12,000 RPM spindle and fast tool-changing capability. These features help reduce cycle times and improve overall productivity, particularly when machining aluminum and other materials requiring high spindle speeds.

Another significant advantage is the Fanuc control platform. Fanuc controls are widely recognized for reliability, ease of programming, and global service support. This simplifies training and integration into existing production environments.

For manufacturers seeking a large-format machining center with modern technology, excellent reliability, and strong machining performance, the Doosan DNM750II remains one of the best choices available.

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WHY BUY USED DOOSAN DNM750II

Purchasing a used 2018 Doosan DNM750II allows manufacturers to acquire a large-capacity machining center while avoiding the substantial cost associated with purchasing new equipment. For many companies, used machinery provides the fastest and most cost-effective path toward expanding production capacity.

One of the biggest advantages of buying used is cost savings. A used DNM750II can often be acquired for significantly less than a new machine while still providing years of productive service. The resulting savings can be invested in tooling, automation systems, rotary tables, fixtures, inspection equipment, or additional CNC machinery.

Another major benefit is immediate availability. New machine purchases frequently involve factory lead times that can extend several months. Used machines are often available for inspection and installation within a much shorter timeframe, allowing manufacturers to respond quickly to customer demand.

The DNM750II’s reputation for reliability further enhances its value. Doosan machining centers are known throughout the manufacturing industry for their durable construction and dependable operation. Many machines continue operating successfully for years when properly maintained.

The machine’s large work envelope also contributes to excellent return on investment. Shops can consolidate multiple setups, process larger workpieces, and increase throughput without investing in more expensive machine platforms.

Strong parts availability, widespread service support, and continued market demand help maintain resale value and reduce ownership risk. For manufacturers seeking large-format machining capability at a practical price point, the used 2018 Doosan DNM750II remains an outstanding investment.

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HOW MUCH DOES A USED DOOSAN DNM750II COST?

A used 2018 Doosan DNM750II typically sells for between $65,000 and $120,000, depending on machine condition, spindle hours, installed options, tooling packages, maintenance history, and regional demand.

Machines near the lower end of the range generally have higher production hours or fewer optional features. Machines near the upper end often include valuable upgrades such as through-spindle coolant, probing systems, rotary tables, chip conveyors, spindle chillers, tool setters, and extensive tooling packages. Many machines from this generation were equipped with productivity-enhancing options that can substantially increase overall package value.

Machine condition remains the most important pricing factor. Buyers typically evaluate spindle condition, axis accuracy, machine geometry, lubrication systems, coolant systems, and maintenance records before determining value. Machines with documented service histories and lower spindle hours generally command premium pricing.

Tooling and accessories can significantly impact overall value. CAT 40 tooling, vises, fixture systems, probes, rotary tables, and inspection equipment may add thousands of dollars to a machine package while reducing startup costs for the buyer.

Market demand also affects pricing. Industries such as aerospace, energy, defense, and heavy equipment manufacturing frequently seek large-capacity machining centers like the DNM750II, helping support strong resale values. The machine’s large travels and production capability make it attractive to shops looking to expand capacity without moving to significantly more expensive machine platforms.

Compared to purchasing a new large-format vertical machining center, a used 2018 Doosan DNM750II offers substantial savings while still delivering modern CNC technology, excellent productivity, and proven reliability. For manufacturers seeking a versatile large-capacity machining center, the DNM750II remains one of the strongest values available in the used CNC equipment market.