Machine tool characteristics

1. This machine tool is manufactured using high-grade cast iron and a box-type structural design. After appropriate annealing to relieve internal stresses, the material exhibits exceptional toughness. Coupled with its box‑type structure and highly rigid body, the machine delivers ample rigidity and strength, enabling it to withstand heavy cutting operations while maintaining outstanding repeatability and precision.
2. The base and the spindle housing are integrated into a monolithic box-type structure, featuring thick ribbed walls and multi-layered stiffening ribs, which effectively suppress thermal deformation and withstand both static and dynamic torsional and deformation stresses, ensuring high bed rigidity and excellent stability.
3. The column adopts a honeycomb‑type symmetrical box‑section structure, with thick‑walled internal stiffeners and stress‑relief circular‑hole stiffeners, providing robust support for the sliding table during heavy cutting operations and ensuring high rigidity and precision of the machine bed.
4. High-precision, high-rigidity spindle head: This machine is equipped with a FANUC high-power spindle servo motor (rated power 18.5/22 kW).
5. The spindle bearings are selected from the SKF/NSK series, offering exceptional axial and radial load capacities to ensure reliable performance during prolonged heavy‑duty cutting. They deliver outstanding precision, stability, low friction, excellent heat dissipation, and robust spindle support rigidity, making them ideal for machining large workpieces and asymmetrical components.
6. X/Z Axis: Employs FANUC AC servo motors coupled directly to large-diameter ball screws (C3-grade accuracy, preloaded to eliminate thermal expansion and enhance rigidity), eliminating cumulative errors associated with belt drives. This design delivers exceptional repeatability and positioning accuracy, while the support bearings are high-precision angular contact ball bearings.
7. The X and Z axes are equipped with ultra-heavy-duty linear guideways featuring high rigidity and a low coefficient of friction, enabling high-speed feed rates while minimizing guideway wear and preserving machine tool accuracy over time. These linear guideways offer a low friction coefficient and excellent dynamic response, delivering superior machining precision and supporting heavy‑load cutting operations.
8. Two‑speed transmission characteristics:

• 1). No noise and no heat transfer to the spindle
• 2). Vibration-free transmission to the spindle ensures cutting quality.
• 3). The gearbox and the spindle utilize a separate lubrication system.
• 4). High transmission efficiency (exceeding 95%)
• 5). Gear shifting is controlled by a gear selector fork, ensuring stable gear changes.

9. Electrical Cabinet: The electrical cabinet’s heat exchanger ensures efficient heat dissipation, maintaining system stability. The external wiring section is equipped with a protective corrugated conduit that is resistant to heat, oil, and water.
10. Lubrication System: This machine features an automatic pressure‑relief lubrication system that employs centralized oil supply and an advanced pressure‑relief, intermittent lubrication mechanism. It delivers oil to each lubrication point at the prescribed intervals, in specified quantities, and under set pressure, ensuring timely and adequate lubrication for every location and enabling long‑term operation without maintenance concerns.

Machine Tool Technical Parameters