PUMA Series

The PUMA Series is DN Solutions (formerly Doosan Machine Tools) high performance lathe series. Designed for heavy and intermittent cutting, accurate production, and premium surface finishes, this series has a wide variety of models with chuck sizes ranging from 8”-21”, turning lengths up to 120", and options for sub-spindles, y-axis, and milling capabilities. This Series has a box guideway structure which prevents vibration and gives it secure dynamic rigidity. It has the highest spindle speed in its class and also delivers powerful cutting capabilities.

What is the PUMA 5100LB Turning Center?

The DN Solutions PUMA 5100LB represents the pinnacle of heavy-duty horizontal turning center technology, engineered for precision machining of large components up to 650mm (25.6") diameter and 2,082mm (81.97") length. This high-performance lathe features a powerful 45 kW (60 hp) spindle motor delivering 4,038 Nm (2,978 ft-lb) of torque, making it ideal for heavy stock removal and precision finishing operations.

Key Performance Specifications:

Maximum turning diameter: 650mm (25.6")
Maximum turning length: 2,082mm (81.97")
Spindle power: 45 kW (60 hp) with 4,038 Nm torque
Chuck capacity: 24" (610mm) standard with 166.5mm (6.55") bore
Turret configuration: 12-station heavy-duty with 0.25-second indexing

The machine's one-piece 45-degree Meehanite cast bed incorporates a torque-tube design that inhibits thermal deformation while ensuring optimal chip flow and operator accessibility for maximum productivity.

How Does the PUMA 5100LB Compare to Competitive Turning Centers?

Spindle Performance Advantages: The PUMA 5100LB's 45 kW spindle motor provides exceptional torque delivery with full power available from 106 RPM through its 2-speed isolated gearbox. This configuration delivers superior heavy-cutting capability compared to single-speed competitors, while the isolated gearbox prevents vibration transfer to the main spindle for enhanced surface finish quality.

Structural Rigidity Features: The machine employs wide wrap-around rectangular guideways with induction hardening and precision grinding, providing superior long-term accuracy compared to flame-hardened alternatives. Fluoroplastic resin bonded to mating surfaces virtually eliminates guideway wear while providing vibration dampening for improved surface finishes.

Turret Technology Leadership: The 12-station servo turret features a large 320mm (12.6") diameter Curvic coupling with 142 kN (31,920 lb) hydraulic clamping force. This heavy-duty design provides unsurpassed rigidity for extended boring bar applications, with ±0.0005 degree indexing repeatability and bi-directional 0.25-second station-to-station indexing.

Automation Integration Capabilities: Standard preparation for 100mm diameter long boring bars, programmable tailstock positioning, and automatic tool setting systems enable lights-out manufacturing operations. The machine accommodates various automation solutions including bar feeders, part catchers, and robotic loading systems.

When Should Manufacturers Choose the PUMA 5100LB?

Heavy-Duty Machining Requirements: The PUMA 5100LB excels in applications requiring substantial material removal rates on large workpieces. Industries such as oil and gas equipment manufacturing, power generation components, and heavy machinery production benefit from the machine's combination of high torque and rigid construction enabling aggressive cutting parameters.

Precision Large Diameter Applications: For manufacturers producing components requiring tight tolerances on diameters up to 650mm, the PUMA 5100LB's thermal stability systems and precision guideways maintain ±0.002mm (±0.00008") X-axis repeatability and ±0.003mm (±0.00012") Z-axis repeatability throughout extended production runs.

Multi-Operation Efficiency Requirements: The 12-station turret configuration with 1.25" square tool holders and 3.0" boring capacity enables complete machining in single setups. Combined with the programmable hydraulic tailstock and automatic tool setter, setup times reduce significantly while maintaining consistent quality.

High-Pressure Coolant Applications: Standard 4.5 bar (65 PSI) coolant system with optional upgrades to 145 PSI or 1,000 PSI accommodate deep hole drilling, difficult-to-machine materials, and applications requiring superior chip evacuation. The 370-liter coolant tank capacity supports extended unmanned operation.

Industry-Specific Applications and Capabilities

Oil and Gas Equipment Manufacturing: The PUMA 5100LB's large diameter capacity and high torque output excel at machining valve bodies, wellhead components, and pressure vessel parts. The machine's ability to handle heavy workpieces up to 1,300kg on the optional steady rest systems supports large-scale energy sector components.

Power Generation Component Production: Turbine shafts, generator rotors, and other power generation components benefit from the machine's extended turning length capability and thermal stability. The optional 1,000 PSI coolant system enables efficient machining of superalloy materials common in power generation applications.

Heavy Equipment and Construction Machinery: Agricultural equipment, construction machinery, and mining equipment manufacturers utilize the PUMA 5100LB for producing hydraulic cylinders, drive shafts, and structural components requiring both heavy material removal and precision finishing operations.

Aerospace and Defense Applications: While optimized for heavy-duty work, the PUMA 5100LB's precision capabilities support aerospace component manufacturing requiring tight tolerances on large diameter parts. The machine's vibration dampening characteristics ensure surface finish quality meeting aerospace specifications.

FAQ Section

Q: What makes the PUMA 5100LB suitable for heavy-duty applications? A: The PUMA 5100LB features a 45 kW (60 hp) spindle delivering 4,038 Nm of torque, one-piece Meehanite cast bed with torque-tube design, and wide wrap-around guideways providing exceptional rigidity for heavy material removal.

Q: What is the maximum workpiece size for the PUMA 5100LB? A: Maximum turning diameter is 650mm (25.6") with maximum turning length of 2,082mm (81.97"). The standard 24" chuck accommodates workpieces with up to 166.5mm (6.55") through-bore capacity.

Q: How fast is the turret indexing on the PUMA 5100LB? A: The 12-station servo turret provides 0.25-second station-to-station indexing with ±0.0005 degree repeatability. The bi-directional indexing capability minimizes non-cutting time for maximum productivity.

Q: What coolant pressure options are available? A: Standard 4.5 bar (65 PSI) coolant system with optional upgrades to 145 PSI or 1,000 PSI. Higher pressure options improve chip evacuation, tool life, and enable machining of difficult materials with superior surface finishes.

Q: Does the PUMA 5100LB support automation integration? A: Yes, the machine includes standard preparation for automation including robot interface capability, automatic tool setting, programmable tailstock, and long boring bar preparation enabling lights-out manufacturing operations.

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