CNC Slant Bed Lathe NXX-52D from China: Precision Turret, Hydraulic Tailstock, Top Suppliers & Factory Quality
Structural Features
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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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Machine Bed: 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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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, specifically engineered to meet the rigorous demands of heavy-duty disk-type workpiece machining.
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Tailstock: 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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Protection Guard: 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
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What is the difference between the NXX-46D and NXX-52D CNC lathe models?
The primary differences lie in the spindle bore diameter (Φ56mm vs. Φ62mm), max. 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), tailstock spindle taper (MT4 vs. MT5), total power consumption (11 Kw vs. 14.5 Kw), and machine weight (3300 kg vs. 3500 kg). The NXX-52D is designed for heavier and larger workpiece machining requirements.
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What type of spindle bearing arrangement is used in the NXX-D series CNC lathes?
The spindle system uses a 'front-three-rear-two' (triplex-front, duplex-rear) arrangement of imported precision-grade bearings. This configuration, combined with a direct-drive spindle servo motor, delivers exceptional rotational accuracy, dynamic rigidity, and speed stability, making it ideal for heavy-duty cutting operations.
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What is the maximum rapid traverse rate for the X and Z axes?
Both the X-axis and Z-axis support a maximum rapid traverse rate of 30 m/min on both the NXX-46D and NXX-52D models. This is achieved through high-rigidity linear guideways, precision pre-tensioned ball screws, and high-performance servo motors connected via flexible couplings.
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How many tool stations does the standard turret support, and how fast is tool indexing?
The standard turret is a 160-10 Station Hydraulic Indexing Turret, supporting up to 10 tools. The tool-to-tool indexing time is 0.5 seconds, with bi-directional shortest-path indexing. Optional hydraulic or servo indexing turrets are also available to meet different machining demands.
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What repeatability accuracy can be expected from the NXX-D series CNC lathes?
Both the NXX-46D and NXX-52D achieve a repeatability accuracy of ±0.0025 mm on both the X-axis and Z-axis. The spindle radial/axial run-out is ≤0.003 mm, ensuring high precision and consistency across production runs.
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What safety and protection features are included in the NXX-D series CNC lathes?
The machines are equipped with a fully-enclosed aesthetic protection guard that provides excellent waterproof and chip-proof performance. The sliding doors operate smoothly and incorporate safety interlocking protection to prevent accidental opening during operation, ensuring comprehensive safety for both the operator and the equipment.