China NXX-46BL Slant Bed CNC Lathe with Rotary Turret - Reliable Suppliers and Factory Solutions
Key Structural Features
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To meet the demands of heavy-duty and high-precision machining, this machine features a monolithic cartridge-type spindle design. It is equipped with a '3-front, 2-rear' configuration of imported precision-grade bearings and driven by a high-performance spindle servo motor. This setup ensures high rigidity, superior accuracy, and consistently stable speeds, effortlessly handling heavy-load tasks. The machine bed is cast from high-quality iron using the resin sand process. The 30° slant bed structure, reinforced with dense internal ribbing, significantly enhances structural rigidity and vibration dampening, while simultaneously optimizing the ergonomic workspace and chip evacuation efficiency.
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The motion axes are equipped with high-rigidity linear guideways and precision pre-tensioned ball screws, which are directly coupled to the servo motors via flexible couplings. This configuration, integrated with an intelligent automated lubrication system, ensures forced lubrication for both rails and screws. This results in superior positioning accuracy, minimized thermal deformation, and achieves rapid traverse speeds of up to 30 m/min.
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Hydraulic station incorporates renowned Taiwanese variable displacement pumps, hydraulic motors, and solenoid valves. Equipped with a high-efficiency air-cooling system, it ensures low operational noise and consistent oil temperature control, providing a reliable power source for long-term continuous operation.
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Available with either hydraulic or servo rotary turrets, the system offers superior rigidity and rapid tool-changing speeds. It supports bi-directional shortest-path tool selection, with an indexing time of only 0.3–0.5 seconds. The tool capacity remains unaffected by workpiece size, making it ideally suited for heavy-duty machining of disk-type components.
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The machine features a fully enclosed splash guard with a modern aesthetic and superior sealing performance. The sliding doors operate smoothly and are equipped with a safety interlocking mechanism, ensuring maximum operator protection and comprehensive equipment safety.
Product Display
Main Technical Specifications
| Item | Unit | NXX-46B | NXX-46BL | |
| Max. Swing Over Bed | mm | Φ480 | Φ500 | |
| Max. Machining Length | mm | 320 | 360 | |
| Max. Swing Over Turret Carriage | mm | Φ125 | Φ220 | |
| Max. Turning Dia. (Disk / Shaft) | mm | Φ380/φ125 | Φ480/φ220 | |
| Spindle Bore Diameter | mm | Φ56 | Φ56 | |
| Max. Bar Capacity | mm | Φ45 | Φ45 | |
| Spindle Speed Range | r/min | 0-4000 | 0-4000 | |
| Spindle Speed Steps | Step | CV | CV | |
| Spindle Nose | Flange Type A2-5 | Flange Type A2-5 | ||
| Main Motor Power (Spindle) | Kw | 7.5 | 7.5 | |
| Bed Slant Angle | Angle | 30 | 30 | |
| X-axis Rapid Traverse Rate | m/min | 24 | 24 | |
| Z-axis Rapid Traverse Rate | m/min | 30 | 30 | |
| Max. X-axis Travel (Single Direction) | mm | 600 | 500 | |
| Max. Z-axis Travel | mm | 425 | 420 | |
| X/Z Axis Servo Motor Power | mm | 1.3 | 1.8 | |
| Spindle Radial & Axial Run-out | mm | ≤0.003 | ≤0.003 | |
| Spindle Facing 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 | Servo Indexing Turret | Servo Indexing Turret | ||
| Max. Number of Tools | pcs | 12 | 12 | |
| Tool-to-Tool Indexing Time | 0.3 | 0.3 | ||
| Tool Size | O.D. Tool | mm | 25×25 | 25×25 |
| Boring Bar Diameter | mm | Φ32 | Φ32 | |
| Total Power Consumption | Kw | 11 | 12 | |
| Machine Weight (Approx.) | kg | 2950 | 3100 | |
| Overall Dimensions (L×W×H) | mm | 2280×1850×1940 | 2350×1875×1940 | |
Frequently Asked Questions
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What is the difference between the NXX-46B and NXX-46BL models?
The NXX-46BL offers a larger max. swing over bed (Φ500mm vs. Φ480mm), a greater max. machining length (360mm vs. 320mm), and a larger max. swing over turret carriage (Φ220mm vs. Φ125mm), making it better suited for machining larger disk-type components. The NXX-46BL also features a higher servo motor power (1.8Kw vs. 1.3Kw) and slightly greater machine weight.
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What type of spindle bearing configuration does this machine use?
The machine adopts a monolithic cartridge-type spindle design equipped with a '3-front, 2-rear' configuration of imported precision-grade bearings. This setup, combined with a high-performance spindle servo motor, delivers high rigidity, superior accuracy, and stable speeds for demanding heavy-load machining tasks.
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What is the tool indexing time and how many tools can the turret hold?
Both the NXX-46B and NXX-46BL support a maximum of 12 tools. The servo indexing turret achieves a tool-to-tool indexing time of just 0.3 seconds, with bi-directional shortest-path tool selection, ensuring highly efficient machining cycles.
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What positioning and repeatability accuracy can be expected from these CNC lathes?
Both models achieve a spindle radial and axial run-out of ≤0.003mm and a spindle facing flatness accuracy of ≤0.01mm/Φ100. The repeatability accuracy for both X-axis and Z-axis is ±0.0025mm, ensuring consistent high-precision output across production runs.
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What are the rapid traverse speeds for the X and Z axes?
The X-axis achieves a rapid traverse rate of 24 m/min, while the Z-axis reaches up to 30 m/min. This is made possible by high-rigidity linear guideways and precision pre-tensioned ball screws directly coupled to servo motors, integrated with an intelligent automated lubrication system.
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What safety and protection features are included on these machines?
The machine is equipped with a fully enclosed splash guard featuring a modern aesthetic and superior sealing performance. The sliding doors operate smoothly and incorporate a safety interlocking mechanism, ensuring maximum operator protection during machining operations and comprehensive overall equipment safety.