The Doosan NHP 4000 is a high-performance horizontal machining center designed for precision manufacturing, high productivity, and reduced cycle times. Unlike vertical machining centers, the NHP 4000 features a horizontal spindle orientation, which allows for efficient chip evacuation and multi-face machining in a single setup. This significantly improves productivity and reduces manual intervention, making it ideal for automotive, aerospace, and general engineering applications.
The machine offers axis travels of approximately 560 mm in X, 640 mm in Y, and 660 mm in Z, with a pallet size of 400 x 400 mm and a maximum workpiece weight of around 400 kg. It is equipped with a high-speed BIG PLUS CAT 40 spindle capable of reaching up to 15,000 RPM, supported by a powerful 30 kW motor, making it suitable for both high-speed and precision machining applications.
A key highlight of the NHP 4000 is its productivity-focused design, including rapid traverse rates of up to 60 m/min, tool-to-tool change times as low as 0.9 seconds, and an automatic pallet changer system that minimizes idle time. It is commonly fitted with a Fanuc 31i-B control, ensuring reliability and advanced machining capabilities. With its compact footprint and high-speed performance, the NHP 4000 is an excellent choice for shops looking to transition into horizontal machining while maintaining efficiency and accuracy.
DOOSAN NHP 4000SPECIFICATIONS
DOOSAN NHP 4000 – AXIS
4-Axis Horizontal Machining Center
Axes: X, Y, Z, B (rotary pallet)
Designed for high-speed, multi-face machining
DOOSAN NHP 4000 – AXIS TRAVELS
X-Axis Travel: 560 mm
Y-Axis Travel: 640 mm
Z-Axis Travel: 660 mm
B-Axis Rotation: 360° indexing
DOOSAN NHP 4000 – CAPACITY
Maximum Pallet Load: ~400 kg
Max Workpiece Size: Ø630 x 900 mm
Suitable for small to medium components
High rigidity structure for precision
DOOSAN NHP 4000 – SPINDLE
Spindle Speed: Up to 15000 RPM
Spindle Taper: BT40 (Big Plus)
Spindle Motor Power: ~30 kW
High-speed spindle with strong torque
DOOSAN NHP 4000 – TABLE
Pallet Size: 400 x 400 mm
Dual Pallet System (APC)
High precision rotary indexing
Suitable for multi-side machining
DOOSAN NHP 4000 – TOOL TURRET
Tool Magazine Type: Automatic Tool Changer (ATC)
Tool Capacity: 40–60 tools (expandable up to 275)
Tool Change Time: ~0.9 sec
Tool Holder Type: BT40
DOOSAN NHP 4000 – FEEDRATES
Rapid Traverse Rate: Up to 60 m/min
High acceleration up to 1G
Cutting Feed Rate: Programmable
Smooth high-speed axis movement
DOOSAN NHP 4000 – COOLANT & CHIP MANAGEMENT
Through Spindle Coolant (~215–230 PSI)
Flood Coolant System
Chip Conveyor with center-through evacuation
Overhead wash and base flushing system
DOOSAN NHP 4000 – CONTROL SYSTEM
CNC Control: FANUC 31i / Siemens
High-speed processing capability
Adaptive feedrate and tool monitoring
Supports advanced machining cycles
DOOSAN NHP 4000 – POWER & AIR REQUIREMENTS
Power Supply: ~30–40 kVA
Voltage: 3 Phase Industrial Supply
Air Pressure Requirement: ~5–6 bar
Stable power recommended
DOOSAN NHP 4000 – DIMENSIONS
Machine Footprint: Approx. 4950 x 2300 mm
Machine Height: ~2690 mm
Machine Weight: ~9700 kg
Compact footprint for HMC
DOOSAN NHP 4000 – GENERAL INFORMATION
Type: Horizontal Machining Center (HMC)
Manufacturer: Doosan Machine Tools
High productivity with reduced idle time
Designed for precision and automation
Ideal for batch and mass production
INDUSTRIES THAT USE DOOSAN NHP 4000
Automotive Industry
Aerospace Industry
General Engineering
Oil & Gas Industry
Industrial Equipment Manufacturing
Electronics Industry
TYPICAL PARTS DOOSAN NHP 4000 CAN PRODUCE
Transmission Housings
Valve Bodies
Pump Components
Gear Housings
Precision Aluminum Parts
Multi-face Machined Components
WHY CHOOSE DOOSAN NHP 4000
High-speed machining with 15000 RPM spindle
Dual pallet system for continuous production
Reduced setup time with multi-face machining
Excellent chip evacuation design
High accuracy and repeatability
Ideal for high productivity manufacturing
WHY BUY USED DOOSAN NHP 4000
Buying a used Doosan NHP 4000 is a smart investment for shops aiming to increase productivity without the high capital cost of a new horizontal machining center. One of the biggest advantages of this machine is its ability to significantly reduce setup time. With its pallet system and horizontal configuration, it enables multi-face machining in a single setup, reducing repositioning and improving workflow efficiency.
Another key benefit is productivity. The NHP 4000 is designed for high-speed machining with rapid axis movement and extremely fast tool change times, allowing shops to complete more parts in less time. Its superior chip evacuation system also improves tool life and surface finish, which can reduce tooling costs and improve overall part quality.
Cost efficiency is a major factor as well. A used NHP 4000 offers advanced features such as pallet changers, large tool capacity, and automation readiness at a fraction of the cost of a new machine. The use of widely adopted Fanuc controls ensures easy integration into existing shop environments, along with readily available spare parts and trained operators. For shops transitioning from vertical to horizontal machining, the NHP 4000 provides an accessible and highly productive solution with proven performance in industrial applications.
HOW MUCH DOES A USED DOOSAN NHP 4000COST?
The cost of a used Doosan NHP 4000 depends on factors such as manufacturing year, machine condition, and most importantly, cutting hours. Since horizontal machining centers are typically used in high-production environments, cutting time plays a critical role in determining wear on key components like the spindle, pallet system, and guideways.
For machines manufactured before 2000, availability is extremely limited, but when found, prices generally range from $25,000 to $50,000. These machines often have very high cutting hours exceeding 30,000–45,000 hours and may require refurbishment, especially in pallet changers and spindle systems.
Machines built between 2000 and 2010 are more commonly available and typically range from $50,000 to $110,000. These units usually have cutting hours between 12,000 and 30,000 hours. Machines with lower usage, proper maintenance records, and functioning pallet systems tend to command higher prices within this range.
For newer machines from 2010 to 2025, prices generally range from $110,000 to $220,000 or more. Machines with lower cutting hours—typically under 10,000–12,000 hours—and advanced features such as larger tool magazines, automation systems, and high-pressure coolant setups can reach the higher end of this range.
Ultimately, the best value comes from balancing machine age with cutting hours, as a well-maintained machine with moderate usage often delivers better long-term reliability than a newer machine that has been heavily used in continuous production environments.