China Suppliers Factory NXX-46B Inclined Bed CNC Lathe with Rotary Turret for High-Precision Machining
Machine Structural Features
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Dedicated to the high-performance CNC machining sector, we proudly introduce this precision machine tool equipped with an integrated cartridge spindle system. The spindle incorporates a 'front-3-rear-2' layout of imported precision-grade bearings, coupled with a direct-drive spindle servo motor. This configuration guarantees exceptional machining accuracy, robust structural rigidity, and superior speed stability, meeting the stringent requirements of heavy-duty cutting operations. The machine bed is cast from premium-grade cast iron using a resin-sand molding process. Featuring a 30° slant bed architecture and a dense internal reinforcement rib layout, it delivers outstanding overall rigidity and vibration damping, while simultaneously optimizing ergonomic accessibility and chip evacuation efficiency.
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The X and Z axes are driven by high-performance servo motors direct-coupled to precision pre-tensioned ball screws via flexible couplings. In combination with high-rigidity, high-precision linear guideways and an integrated computerized automatic lubrication system for forced oiling of both guides and screws, the system achieves rapid traverse speeds up to 30m/min. This ensures precise positioning with minimal thermal deformation during high-speed operations.
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Hydraulic system incorporates Taiwanese-branded variable displacement pumps, hydraulic motors, and solenoid valves, integrated with an independent air-cooling unit to ensure low-noise operation and stable oil temperature control. The turret system offers options for hydraulic or servo-driven rotary turrets, featuring robust structural rigidity and bi-directional logic indexing (shortest path tool selection). With a rapid tool-change time of only 0.3–0.5 seconds and a tool capacity unrestricted by workpiece dimensions, it is particularly optimized for the heavy-duty machining of disk-type components.
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The entire machine is encased in a fully enclosed guarding system with streamlined aesthetics and superior waterproof sealing. The lightweight sliding doors operate effortlessly and are integrated with a safety interlock mechanism, ensuring a perfect balance between operator safety and ergonomic convenience.
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 Rotary Turret | Servo Rotary 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
QWhat is the difference between the NXX-46B and NXX-46BL models?
AThe NXX-46BL is the long-bed variant, offering a larger max. swing over bed (Φ500mm vs Φ480mm), a greater max. turning diameter for disk/shaft components (Φ480/φ220mm vs Φ380/φ125mm), and a heavier machine weight (3100kg vs 2950kg). Both models share the same spindle bore, speed range, turret type, and repeatability accuracy specifications.
QWhat type of spindle bearing configuration does this CNC lathe use?
AThe integrated cartridge spindle adopts a 'front-3-rear-2' layout of imported precision-grade bearings, combined with a direct-drive spindle servo motor. This ensures exceptional machining accuracy, structural rigidity, and stable high-speed performance suitable for heavy-duty cutting.
QHow fast is the tool change on the NXX-46B series turret?
AThe servo rotary turret achieves a rapid tool-to-tool indexing time of just 0.3 seconds. It supports bi-directional logic indexing (shortest path tool selection) and holds up to 12 tools, making it highly efficient for complex, multi-step machining operations.
QWhat is the repeatability accuracy of the X and Z axes?
ABoth the X-axis and Z-axis achieve a repeatability accuracy of ±0.0025mm on both the NXX-46B and NXX-46BL models. This is achieved through high-rigidity linear guideways, precision pre-tensioned ball screws, and an integrated automatic lubrication system that minimizes thermal deformation.
QWhat hydraulic components are used and how is oil temperature controlled?
AThe hydraulic system uses Taiwanese-branded variable displacement pumps, hydraulic motors, and solenoid valves. An independent air-cooling unit is integrated to maintain stable oil temperature and ensure low-noise operation throughout continuous production cycles.
QIs the NXX-46B series suitable for heavy-duty disk-type component machining?
AYes. The machine is specifically optimized for heavy-duty machining of disk-type components. The 30° slant bed architecture with dense internal reinforcement ribs provides superior rigidity and vibration damping, while the unrestricted tool capacity turret and rapid traverse rates up to 30m/min ensure high productivity and precision for demanding applications.