CNC Slant Bed Lathe NXX-52D from China Suppliers - Precision Indexing Turret & Hydraulic Tailstock Factory Equipment
Structural Features
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The spindle system features a high-precision, high-rigidity cartridge-type design, specifically optimized for heavy-duty machining. The structural configuration utilizes a 'front-three-rear-two' (triplex-front, duplex-rear) arrangement of imported precision-grade bearings. Combined with a direct-drive spindle servo motor, the system achieves exceptional rotational accuracy, dynamic rigidity, and speed stability, ensuring superior machining quality and high efficiency even under heavy cutting conditions.
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The machine bed is constructed from premium monolithic cast iron using a resin-sand precision casting process with a 30° slant layout. The internal structure is reinforced with high-rigidity ribbing, significantly enhancing the machine's natural frequency and damping characteristics. This design offers outstanding anti-vibration performance. Furthermore, the slanted bed provides the operator with an unobstructed view and easier access, while ensuring gravity-assisted chip removal for enhanced efficiency and workplace safety.
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The feed mechanism operates through the synergy of high-rigidity linear guideways and precision pre-tensioned ball screws. Both X and Z axes are directly driven by high-performance servo motors via flexible couplings, eliminating backlash and enhancing transmission efficiency. An intelligent centralized lubrication system provides forced lubrication and cooling to the guideways and ball screws, supporting rapid traverse rates of up to 30 m/min while maintaining exceptional positioning accuracy and thermal stability.
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Hydraulic system integrates premium Taiwanese components, including variable displacement pumps, hydraulic motors, and solenoid valves, complemented by a high-efficiency air-cooled radiator. This setup ensures low-noise operation and precise oil temperature control, guaranteeing reliable hydraulic movements. The machine offers a choice of hydraulic or servo indexing turrets, featuring a robust construction with rapid tool changes (0.3 – 0.5 sec) and bi-directional shortest-path indexing. This configuration is specifically engineered to meet the rigorous demands of heavy-duty disk-type workpiece machining.
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The tailstock is hydraulically driven, enabling automatic quill extension and retraction. It offers superior rigidity and ease of adjustment, significantly expanding the machine's capability for processing long-shaft workpieces.
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Machine is equipped with an aesthetic fully-enclosed protection guard, providing excellent waterproof and chip-proof performance. The sliding doors operate smoothly and are integrated with safety interlocking protection. This design not only enhances the machine's overall appearance but also provides comprehensive safety assurance for both the operator and the equipment.
Product Display
Key Technical Specifications
| Item | Unit | NXX-46D | NXX-52D | ||
| Max. Swing Over Bed | mm | Ф450 | Ф450 | ||
| Max. Machining Length | mm | 500 | 500 | ||
| Max. Swing Over Turret Carriage | mm | Φ220 | Φ220 | ||
| Max. Turning Dia. (Disk / Shaft) | mm | Φ450/Φ220 | Φ450/Φ220 | ||
| Spindle Bore Diameter | mm | Φ56 | Φ62 | ||
| Max. Bar Capacity | mm | Φ45 | Φ51 | ||
| Spindle Speed Range | r/min | 0-4000 | 0-3000 | ||
| Spindle Speed Steps | Step | CV | CV | ||
| Spindle Nose | Flange Type A2-5 | Flange Type A2-5 | |||
| Main Motor Power (Spindle) | Kw | 7.5 | 11 | ||
| Bed Slant Angle | ° | 30 | 30 | ||
| X-axis Rapid Traverse Rate | m/min | 30 | 30 | ||
| Z-axis Rapid Traverse Rate | m/min | 30 | 30 | ||
| Max. X-axis Travel (Single Direction) | mm | 500 | 500 | ||
| Max. Z-axis Travel | mm | 550 | 550 | ||
| X/Z Axis Servo Motor Power | mm | 1.3 | 1.3 | ||
| Tailstock Quill Diameter | mm | Φ80 | Φ80 | ||
| Tailstock Quill Travel | mm | 80 | 80 | ||
| Tailstock Spindle Taper | MT | 4＃ | 5＃ | ||
| Tailstock Body Travel (Manual/Hydraulic) | mm | 480 | 480 | ||
| Spindle Run-out (Radial/Axial) | mm | ≤0.003 | ≤0.003 | ||
| Spindle Face Flatness / Spindle Nose Run-out | mm | ≤0.01/Φ100 | ≤0.01/Φ100 | ||
| Repeatability Accuracy | X-axis | mm | ±0.0025 | ±0.0025 | |
| Z-axis | mm | ±0.0025 | ±0.0025 | ||
| Standard Turret Type | 160-10 Station Hydraulic Indexing Turret | 160-10 Station Hydraulic Indexing Turret | |||
| Max. Number of Tools | pcs | 10 | 10 | ||
| Tool-to-Tool Indexing Time | S | 0.5 | 0.5 | ||
| Tool Size | O.D. Tool | mm | 25×25 | 25×25 | |
| Boring Bar Diameter | mm | Φ32 | Φ32 | ||
| Total Power Consumption | Kw | 11 | 14.5 | ||
| Machine Weight (Approx.) | kg | 3300 | 3500 | ||
| Overall Dimensions (L×W×H) | mm | 2700×1810×1880 | 2700×1810×1880 | ||
Frequently Asked Questions
Q What is the key difference between the NXX-46D and NXX-52D CNC slant bed lathe models?
The primary differences lie in the spindle bore diameter (Φ56mm vs Φ62mm), maximum bar capacity (Φ45mm vs Φ51mm), spindle speed range (0–4000 r/min vs 0–3000 r/min), main motor power (7.5 Kw vs 11 Kw), and total power consumption (11 Kw vs 14.5 Kw). The NXX-52D is better suited for heavier-duty applications requiring a larger bore and higher torque output.
Q Why does the machine use a 30° slant bed design instead of a flat bed?
The 30° slant bed design improves chip evacuation through gravity, gives the operator a clearer and more ergonomic view of the cutting zone, and enhances structural rigidity. This layout also contributes to better vibration damping and improved machining accuracy, especially during heavy-duty cutting operations.
Q What type of turret system is standard, and can it be upgraded?
The standard configuration includes a 160-10 Station Hydraulic Indexing Turret with a tool-to-tool indexing time of 0.5 seconds. The machine also supports an optional servo indexing turret, offering bi-directional shortest-path indexing and faster change times of 0.3–0.5 seconds, making it suitable for high-efficiency disk-type workpiece machining.
Q How does the centralized lubrication system benefit the machine's performance and longevity?
The intelligent centralized lubrication system delivers forced lubrication and cooling directly to the linear guideways and ball screws. This minimizes friction, reduces thermal deformation, and ensures consistent positioning accuracy. It also extends the service life of critical mechanical components and supports rapid traverse rates of up to 30 m/min with maintained thermal stability.
Q Is the tailstock suitable for processing long-shaft workpieces?
Yes. The hydraulically driven tailstock features automatic quill extension and retraction, with a quill diameter of Φ80mm and a travel of 80mm. The tailstock body travel (manual/hydraulic) extends up to 480mm, providing excellent support rigidity and ease of adjustment for long-shaft workpiece applications on both the NXX-46D and NXX-52D models.
Q What safety and protection features are included with the machine?
The machine is equipped with a fully-enclosed aesthetic protection guard that provides comprehensive waterproof and chip-proof performance. The smooth-operating sliding doors are integrated with safety interlocking mechanisms to prevent accidental access during operation. These features ensure a safe working environment for operators while also protecting the machine's internal components from coolant and swarf contamination.