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. Combined with the box‑type structure and a highly rigid frame, the machine delivers ample rigidity and strength, enabling it to handle heavy‑duty cutting operations while maintaining outstanding positioning accuracy. The crossbeam can be raised or lowered at will, featuring a highly ergonomic operating design. The crossbeam’s clamping and releasing mechanism employs hydraulic release and mechanical (spring) clamping.
2. The base adopts a box‑type structure with thick ribbed walls and multi‑layer ribbing, minimizing thermal deformation and enabling it to withstand both static and dynamic torsional and deformation stresses, thereby ensuring high bed rigidity and excellent stability. The columns feature a specially designed symmetrical box‑type structure, providing robust support for the slide table during heavy cutting operations—perfectly embodying superior rigidity and precision.
3. The Z-axis square guide rails feature an extra-large cross-section (180 mm × 180 mm) to enhance cutting performance and ensure high cylindrical accuracy. The slide column is made of alloy steel and undergoes annealing treatment.
4. High-precision, high-rigidity spindle head; this machine is equipped with a FANUC high-power spindle servo motor (with a power rating of 37/45 kW).
5. The spindle bearings are either the U.S.-made TIMKEN CROSS ROLLER bearings or the European PSL cross-roller bearings, featuring a large inner diameter of φ330 to deliver exceptional axial and radial load capacity. These bearings ensure reliable performance during prolonged heavy‑duty cutting, offering outstanding precision, stability, low friction, excellent heat dissipation, and robust spindle support—making them ideal for machining large workpieces and asymmetrical components.
6. GTP 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 solenoid valves, ensuring smooth and stable gear changes.

7. Characteristics of crossed roller bearings:

• 1) Double-row crossed roller bearings occupy the same space as single-row roller bearings, yet their load application points are not reduced.
• 2) Takes up little space, with a low bed frame height for easy operation.
• 3) The center of gravity is low, resulting in reduced centrifugal force.
• 4) A Teflon bearing retainer is used, resulting in low inertia and enabling operation even at low torque.
• 5) Uniform heat conduction, low wear, and long service life.
• 6) High rigidity, high precision, vibration-resistant, and easy to lubricate.

8. The X and Z axes employ FANUC AC servo motors coupled directly to large-diameter ball screws (C3‑grade precision, preloaded to eliminate thermal expansion and enhance rigidity), eliminating the cumulative errors associated with belt drives and delivering exceptional repeatability and positioning accuracy. The support bearings are high‑precision angular contact ball bearings.
9. ATC Tool Magazine: Equipped with an automatic tool‑changing mechanism, the magazine holds 12 tools. The tool holder type is a 7/24 taper BT‑50; each individual tool can weigh up to 50 kg, and the magazine’s maximum load capacity is 600 kg. An integrated coolant system ensures effective cooling, extending tool life and reducing machining costs.
10. Electrical Cabinet: The electrical cabinet is equipped with an air conditioner, effectively reducing the internal temperature and ensuring system stability. The external wiring section features protective corrugated tubing that is resistant to heat, oil, and water.
11. Lubrication System: This machine features an automatic pressure‑relief lubrication system that employs centralized oil delivery. Utilizing an advanced pressure‑relief, intermittent lubrication system, it provides timely and precise oil supply to each lubrication point—on a timed, metered, and pressurized basis—ensuring that every lubrication location receives the correct amount of lubricant at the right time. This guarantees reliable, long‑term operation without maintenance concerns.
12. The X and Z axes feature symmetric box-type structures with hardened guideways; after heat treatment, wear-resistant strips (Turcite‑B) are bonded to the sliding surfaces, forming a high‑precision, low‑friction precision slide assembly.
13. Dimensions of the ball screw:

• X-axis (X-axis) ---- Ø63mm
• Z-axis ---- Ø63mm

Machine Tool Technical Parameters