China NXX-46BL Slant Bed CNC Lathe with Rotary Turret - Reliable Suppliers & Factory Solutions
Key Structural Features
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.
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.
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.
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.
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 | Kw | 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 | s | 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
What are the primary differences between the NXX-46B and NXX-46BL models?
The NXX-46BL offers expanded machining capacity with a larger swing over bed (Φ500 mm vs. Φ480 mm), maximum machining length (360 mm vs. 320 mm), and higher X/Z axis servo motor power (1.8 kW vs. 1.3 kW), making it suitable for larger workpiece applications.
What type of spindle design is used for high-precision turning?
Both models feature a monolithic cartridge-type spindle configured with a 3-front, 2-rear imported precision bearing arrangement, driven by a 7.5 kW servo motor, providing radial and axial run-out within ≤0.003 mm.
What is the capacity and indexing speed of the tool turret?
The standard system comes with a 12-station servo indexing turret capable of bidirectional shortest-path tool selection, delivering fast tool-to-tool indexing in just 0.3 seconds.
What are the benefits of the 30° slant bed structure?
Cast with high-quality resin sand iron and dense internal ribbing, the 30° slant bed design significantly dampens vibrations, increases rigidity, and provides superior chip evacuation during continuous heavy-load operations.
What axis rapid traverse speeds and repeatabilities are achieved?
The machines achieve rapid traverse rates of up to 24 m/min on the X-axis and 30 m/min on the Z-axis, with a high positioning repeatability of ±0.0025 mm on both axes.
What safety systems are integrated into the machine?
The machine is built with a fully enclosed splash guard and smooth-operating sliding doors integrated with a safety interlocking mechanism to ensure maximum operator safety and environment cleanliness.