Doosan PUMA 480 Turning center

DOOSAN PUMA 480
Heavy Duty Turníng Center 
Massive yet responsíve Turning Centers without compromise. The most powerful machines in their class.

PUMA 480 seríes mainly focus íts capacity on heavy duty cutting,
wíde range of cuttíng coverage along with rapid positíoning and fast bí-directional turret-índexíng.

PUMA 400 Series Headstock and Turret Features

The PUMA 400 Series is built with exceptional durability and rigidity to handle heavy-duty machining operations. Below is an overview of key features related to the headstock, spindle, and turret systems, which contribute to the machine's precision, surface finish, and overall performance.

Headstock Construction:

Material: The headstock casting is made from meehanite (a high-quality material), which is ribbed on the outside to enhance heat dissipation. This ensures the system remains stable under heavy loads and high operational temperatures.

Spindle Support:

The spindle is supported by a heavy-duty cartridge type system, using a double row of cylindrical roller bearings in the front and rear.

Between these bearings, duplex angular thrust bearings provide additional support to ensure smooth rotation under heavy loads.

Large contact surface of cylindrical roller bearings ensures high rigidity and superior surface finishes.

Bearing Type: The spindle bearings are precision class Y4 and are permanently grease-lubricated, ensuring consistent performance and reliability over time.

Spindle Speed and Power Torque Diagram:

Spindle Speed Range: The spindle operates at speeds ranging from 300 to 3,000 rpm with various power-torque curves depending on the application. This range allows for flexibility in machining materials of varying hardness.

Turret System:

Heavy-Duty 12-Station Turret:

The large 12-station turret is a critical part of the machine's versatility and performance.

It features a large diameter Curvic coupling to provide excellent rigidity during operations such as heavy stock removal, fine surface finishes, and long tool life.

The turret is designed for quick indexing, with indexing occurring bi-directionally, allowing for non-stop operation with minimal downtime.

Hydraulic Clamp:

The turret's hydraulic clamp provides high clamping force, ensuring the tool is securely held during machining.

This system is powered by a high-torque hydraulic motor, making the turret indexing extremely reliable and ensuring accurate tool positioning.

Tool Attachment: Tools are securely attached to the turret by wedge clamps, which ensure tool stability even under heavy machining conditions.

Tooling and Collet System:

Preci-Flex Adapter Application:

The Preci-Flex rotary tool holders are available for the milling versions of the PUMA 400 series.

This Preci-Flex system utilizes the existing ER collet taper in the rotary holders for enhanced rigidity and precision.

Angular Milling Head:

The angular milling head is precision-ground relative to the taper, ensuring maximum rigidity and accuracy during angular milling operations.

The Preci-Flex adapter locks firmly onto the spindle, providing stability and minimizing tool deflection, crucial for high-precision machining.

Collet Application:

The rotary tool holders are compatible with ER collet tapers, and the system provides strong and precise tool holding capabilities for a wide range of applications.

Guideways and Structural Rigidity:

Guideways Construction:

The guideways are made from fine grain meehanite cast iron, which is induction-hardened and precision-ground to provide a smooth and rigid surface.

These guideways are designed to insulate stability and absorb vibrations, ensuring precise machining and excellent surface finishes.

Induction hardening improves the wear resistance of the guideways, extending the life of the machine.

Precision and Accuracy:

The machine features rigidity accuracy and prevention of twisting, which ensures consistent performance even with heavy cutting conditions. The guideways and spindle assemblies are engineered to minimize deflection and distortion, even during prolonged machining sessions.

Performance Specifications:

Rapid Traverse Rates:

The X-axis travel is 16 m/min, while the Z-axis travels at a maximum of 20 m/min for efficient movement.

Cutting Feed Rates:

The cutting feed rate can be adjusted up to 18 m/min, enabling the machine to handle various materials and cutting depths effectively.

Machine Durability and Precision:

The heavy-duty structure and components of the PUMA 400 Series are designed for long-term operation without compromising on precision or surface finishes. The machine is built to handle continuous heavy workloads while maintaining the highest standards of accuracy and reliability.

These features ensure the PUMA 400 Series excels in precision machining for a wide variety of applications, offering both high productivity and exceptional surface quality.

PUMA 400 Series Machine Features: Lubrication, Tooling, and Precision

The PUMA 400 Series offers advanced features aimed at improving machine efficiency, reducing maintenance, and ensuring high precision. Below is an overview of the key lubrication, tooling, and drive systems that ensure the machine's long-lasting performance and high-quality results.

Lubrication System:

Automatic Lubrication:

The automatic lubrication system ensures that all critical components such as guideways, ball screws, and the tailstock quill are lubricated continuously.

A maintenance-free piston distributor delivers precise amounts of lubricant to each point, reducing wear and ensuring smooth operation.

Low-level alarm: This feature prevents the machine from restarting without sufficient lubricant, preventing damage and reducing downtime.

Coolant Management:

The system features a high-pressure flush that effectively removes chips from drilled holes and reduces the need for repetitive drill cycles.

The coolant tank has a large 280-liter capacity, keeping the coolant clean and extending its life. A belt skimmer is used to remove waste oil from the coolant tank, keeping the system clean and preventing heat transfer.

The system's hydraulic oil temperature is carefully regulated using an integrated cooling system, ensuring optimal performance of the hydraulic components.

Durability and Waste Reduction:

The coolant tank and chip pan are separate and designed for easy cleaning, ensuring that the environment around the machine remains clean.

The design minimizes grime buildup and offensive odors within the machine, maintaining a cleaner work environment.

The guideways and other critical components are protected to prevent coolant leakage, ensuring reliability during operation.

Ball Screw and Drive Systems:

Ball Screws for Precision:

Both the X-axis and Z-axis are driven by preloaded ball screws, supported by precision-class P+ angular contact thrust bearings at both ends.

These ball screws are selected for their high accuracy, allowing for high rapid traverse rates and high feed thrust. This ensures minimal backlash and optimal precision in machining operations.

Tailstock and Quill:

The tailstock body is mounted on the same guideway surface as the headstock, ensuring stable and accurate operations.

It features a large diameter quill, connected to the ball screws without intermediate connections. This system improves backlash performance and ensures quiet and responsive movement.

Drive Motors:

The machine uses AC servo motors for each axis, which provide high torque and precise motion control.

The tailstock quill is equipped with auto lubrication for smooth, low-noise, and efficient operation.

The system minimizes backlash, ensuring stable and accurate positioning for demanding machining tasks.

Spindle and Power Transfer System:

High-Speed Spindle Drive:

The machine utilizes a two-speed gear box to provide both high spindle speeds and low-end torque.

The spindle is driven by a 37kW spindle motor that is directly coupled to the gearbox, which features precision ground gears to ensure quiet operation at high speeds.

The gearbox and spindle are isolated to reduce heat transfer and vibration, ensuring smooth operation and high-quality surface finishes.

Spindle Speed and Torque:

The two-speed gear system allows the machine to provide both high-speed operation for fine machining and low-end torque for heavy cutting operations.

The vibration-free operation of the spindle, combined with high-quality surface finishes, ensures optimal results even under demanding conditions.

Tooling and Setup Features:

Tool Setter:

The automatic tool setter reduces setup times by automatically measuring the tool length and adjusting the machine's parameters to suit the selected tool. This ensures precise tool management, minimizing errors during machining.

Preloaded Ball Screws for High Precision:

The ball screws used in both the X-axis and Z-axis are preloaded to ensure high accuracy and minimize backlash, resulting in more precise machining.

The angular contact thrust bearings at both ends provide additional rigidity, allowing for heavy-duty machining without compromising performance.

Tool Management:

The tool management system allows for quick indexing and changing of tools, reducing downtime and improving the overall efficiency of the machine.

Tool life is extended due to the precision and stability provided by the robust turret and tooling system.

Machine Design and Reliability:

The PUMA 400 Series is rigorously tested and designed to ensure that coolant leakage is prevented in any operational condition, maintaining a clean environment in the factory.

The machine's design minimizes the need for skim cuts and other setup procedures, improving both speed and accuracy.

All lubrication and coolant systems are fully integrated into the machine's design, enhancing both performance and maintenance ease.

With these advanced features, the PUMA 400 Series ensures optimal performance for high-precision machining with reduced downtime, longer tool life, and a cleaner work environment.

PUMA 480M

PUMA 480 Series Machine Specifications and Features

The PUMA 480 Series is designed for high-precision turning and milling, with features that ensure flexibility and high performance across various machining tasks. Below is a detailed breakdown of the machine's specifications and standard features.

Machine Specifications:

Machine Capacity:

Swing Over Bed:

PUMA 480[L]: 900 mm

PUMA 480M[LM]: 900 mm

Swing Over Saddle:

720 mm (both models)

Recommended Turning Diameter:

380 mm

Maximum Turning Diameter:

650 mm

Maximum Turning Length:

PUMA 480[L]: 1,212 mm

PUMA 480M[LM]: 1,201 mm

Bar Working Diameter:

ø 80 mm (PUMA 480[L])

ø 60 mm (PUMA 480M[LM])

Travel Distance:

X-axis:

362 mm

Z-axis:

PUMA 480[L]: 1,105 mm

PUMA 480M[LM]: 1,155 mm

Spindle and Tooling:

Main Spindle Speed:

1,500 rpm

Spindle Nose:

ASA A1-15

Spindle Bearing Diameter:

240 mm

Spindle Through Hole:

181 mm

Spindle Index Angle:

360°

Tool Positions:

PUMA 480[L]: 10 Tool Stations

PUMA 480M[LM]: 12 Tool Stations

Tool Height (OD Tool):

32 mm x 32 mm (PUMA 480[L])

25 mm x 25 mm (PUMA 480M[LM])

Boring Bar Diameter:

PUMA 480[L]: ø 80 mm

PUMA 480M[LM]: ø 60 mm

Indexing Time (1st Station Swivel):

0.3 sec

Feed and Motor Details:

Feed Rates:

Rapid Traverse:

X-axis: 16 m/min

Z-axis: 16 m/min

Maximum Cutting Feedrate:

X-axis: 500 mm/min

Z-axis: 500 mm/min

Tailstock:

Quill Diameter:

120 mm

Quill Morse Taper:

MT5

Quill Travel:

120 mm

Motors:

Main Spindle Motor:

45 kW

Servo Motors:

X-axis: 7.5 kW

Z-axis: 7.5 kW

Rotary Tool Spindle Motor:

11 kW

Coolant Pump Motor:

0.5 kW

Power Supply and Dimensions:

Electrical Power Supply Rated Capacity:

32 kVA

Machine Dimensions:

Machine Height:

2,170 mm

Machine Length:

3,450 mm

Machine Width:

2,050 mm

Machine Weight:

8,450 kg (PUMA 480[L])

10,500 kg (PUMA 480M[LM])

Standard Features:

Live Center:

Standard

Optional Features:

Available only on M-type models.

Additional Information:

Part Program Length:

The standard program length can vary based on the export conditions. Optional functions may reduce the program length.

Machine Design and Performance Highlights:

The PUMA 480 Series offers high rigidity and precision, designed for both heavy cutting and fine finishing tasks. The powerful main spindle and servo motor system ensure high-speed performance and torque, making it ideal for a variety of complex machining processes.

The tooling system allows for flexibility and ease of operation, with options for up to 12 stations for tool changes, depending on the model. The tailstock quill provides additional support and stability during operations that require precision.

The advanced lubrication and coolant systems ensure efficient and clean operation, extending the life of the machine and components.

The machine's compact yet robust design allows for large machining capacities while maintaining high performance and minimal maintenance needs.

This configuration of the PUMA 480 Series provides an excellent balance of power, precision, and efficiency, making it ideal for industries that require both turning and milling capabilities in a single machine.