China Suppliers Factory NXX-46D: Advanced Slant Bed CNC Lathe with Rotary Turret and Hydraulic Tailstock
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, it offers 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, which are directly coupled to the servo motors via flexible couplings. To ensure sustained accuracy, the system is equipped with an intelligent automatic lubrication system that provides 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 lightning-fast 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
Q 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 r/min vs 0–3000 r/min), main motor power (7.5 Kw vs 11 Kw), and total power consumption (11 Kw vs 14.5 Kw). The NXX-52D is better suited for heavier-duty applications requiring larger bore capacity and higher torque.
Q What type of spindle bearing configuration does this CNC lathe use?
The spindle uses imported precision bearings arranged in a '3+2' layout — three bearings at the front and two at the rear. This configuration provides exceptional rotational accuracy (radial/axial run-out ≤0.003mm), superior rigidity, and high load capacity, making it ideal for high-speed and heavy-duty machining operations.
Q How fast is the tool change (indexing) speed on these machines?
Both models feature a 160-10 station hydraulic indexing turret with a tool-to-tool indexing time of 0.5 seconds for adjacent stations. With the optional servo rotary turret, this can be reduced to as fast as 0.3 seconds, supporting bi-directional shortest-path tool selection for maximum efficiency.
Q What is the maximum workpiece size that can be machined on these lathes?
Both the NXX-46D and NXX-52D support a maximum swing over bed of Φ450mm. The maximum workpiece diameter is Φ450mm for disk-type components and Φ220mm for shaft-type components. The maximum machining length is 500mm.
Q Does the machine support long shaft workpiece machining?
Yes. Both models are equipped with a hydraulic-controlled tailstock featuring a fully programmable/automatic quill (Φ80mm diameter, 80mm travel, with 480mm body travel). This significantly expands the machine's capability for processing long-shaft workpieces while maintaining superior stability and ease of operation.
Q What lubrication and cooling systems are included?
The machine is equipped with an intelligent automatic lubrication system providing continuous forced lubrication to the linear guideways and ball screws on both X and Z axes. The hydraulic station integrates a high-efficiency air-cooled heat exchanger using premium Taiwanese variable displacement pumps to ensure stable oil temperatures and low noise levels during continuous operation.