China NXX-46D Slant Bed CNC Lathe with Rotary Turret & Hydraulic Tailstock | Suppliers & Factory Solutions
Structural Features
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This CNC machine features a monolithic cartridge-type spindle unit designed for high rigidity, high precision, and heavy-duty machining. The spindle is supported by imported precision bearings in a '3+2' (front-triple, rear-double) layout, driven by a high-performance spindle servo system. This configuration ensures exceptional rotational accuracy, superior rigidity, and high load capacity during high-speed operations. The bed structure utilizes an integrated premium cast iron base with a 30° slant-bed design, crafted using resin-sand casting and a reinforced rib-and-plate internal structure, offering outstanding structural rigidity and vibration damping, while simultaneously optimizing operator ergonomics and chip evacuation paths.
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X and Z axes feature high-rigidity precision linear guideways paired with pre-tensioned ball screws, directly coupled to the servo motors via flexible couplings. The system is equipped with an intelligent automatic lubrication system providing continuous forced lubrication to the rails and screws. This configuration achieves superior positioning precision, minimizes thermal deformation, and enables rapid traverse rates of up to 30 m/min.
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Hydraulic station is equipped with premium Taiwanese variable displacement pumps, hydraulic motors, and solenoid valves, integrated with a high-efficiency air-cooled heat exchanger to ensure low noise levels and stable oil temperatures. The machine offers a choice of hydraulic or servo rotary turrets, both featuring exceptional rigidity and rapid indexing. Supporting bi-directional shortest-path tool selection, the system achieves a tool-to-tool time of 0.3–0.5 seconds, making it ideally suited for the heavy-duty machining of disk-type components.
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Hydraulic-controlled tailstock features a fully programmable/automatic quill, ensuring a robust structure and effortless operation. This configuration significantly expands the machine's capability for processing long-shaft workpieces while maintaining superior stability.
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The machine is equipped with an aesthetically pleasing, fully enclosed guarding system that provides superior coolant and chip containment. The sliding doors are designed for effortless operation and are integrated with safety interlocking devices, ensuring an optimal balance between operator protection and convenience.
Product Display
Technical Specifications
| Item | Unit | NXX-46D | NXX-52D | |
| Max. Swing Over Bed | mm | Ф450 | Ф450 | |
| Max. Machining Length | mm | 500 | 500 | |
| Max. Swing Over Cross Slide (Carriage) | mm | Φ220 | Φ220 | |
| Max. Workpiece 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 (Stepless for Servo) | Step | CV | CV | |
| Spindle Nose Type | Flange Type A2-5 | Flange Type A2-5 | ||
| Main Motor Power | Kw | 7.5 | 11 | |
| Bed Slant Angle | 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) | MT | 4＃ | 5＃ | |
| Tailstock Body Travel | mm | 480 | 480 | |
| Spindle Radial & Axial Run-out Accuracy | mm | ≤0.003 | ≤0.003 | |
| Spindle Face Flatness Accuracy | 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 | ||
| Number of Tool Stations (Max.) | pcs | 10 | 10 | |
| Tool-to-Tool Indexing Time (Adjacent) | 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 models?
The primary differences lie in the spindle bore diameter (Φ56mm vs. Φ62mm), max bar capacity (Φ45mm vs. Φ51mm), spindle speed range (0–4000 vs. 0–3000 r/min), main motor power (7.5Kw vs. 11Kw), and total power consumption (11Kw vs. 14.5Kw). The NXX-52D is suited for heavier workpieces requiring larger bar stock capacity.
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What type of spindle bearing configuration is used in these CNC lathes?
Both models use imported precision bearings arranged in a '3+2' layout — three bearings at the front and two at the rear. This configuration is specifically designed to maximize rotational accuracy, rigidity, and load-bearing capacity during high-speed and heavy-duty machining operations.
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What is the tool-to-tool indexing time for the turret system?
The standard 160-10 Station Hydraulic Indexing Turret achieves a tool-to-tool time of 0.5 seconds for adjacent stations. With the optional servo rotary turret upgrade, indexing time can be reduced to as fast as 0.3 seconds, significantly improving cycle times for disk-type component machining.
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How does the automatic lubrication system benefit machine longevity?
The intelligent automatic lubrication system continuously delivers forced lubrication to all linear guideways and ball screws on both X and Z axes. This reduces friction, minimizes thermal deformation, prevents premature wear, and helps maintain the machine's positioning accuracy of ±0.0025mm over extended periods of operation.
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Can these machines handle long-shaft workpieces effectively?
Yes. Both models are equipped with a hydraulic-controlled tailstock featuring a fully programmable and automatic quill with a travel of 80mm and a body travel of 480mm. This robust tailstock design significantly enhances the machine's capability for stable, accurate machining of long-shaft workpieces.
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What safety and enclosure features are included with the machine?
The machine comes with a fully enclosed guarding system providing superior coolant splash and chip containment. The easy-to-operate sliding doors are integrated with safety interlocking devices that prevent the machine from operating when the guard is open, ensuring compliance with operator safety standards while maintaining convenient access for setup and inspection.