China NXX-46D Slant Bed CNC Lathe with Rotary Turret, Hydraulic Tailstock - Top Suppliers from Factory
Structural Features
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.
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.
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.
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.
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
What are the spindle bearing configuration and run-out accuracy of the machine?
The spindle is supported by imported precision bearings in a '3+2' (front-triple, rear-double) layout, driven by a high-performance servo system. It achieves radial and axial run-out accuracy of ≤0.003 mm and face flatness accuracy of ≤0.01/Φ100 mm.
What rapid traverse speed and repeatability can be achieved on the X and Z axes?
Both X and Z axes achieve rapid traverse rates of up to 30 m/min with a repeatability accuracy of ±0.0025 mm, supported by high-rigidity linear guideways, pre-tensioned ball screws, and continuous forced lubrication.
How fast is the turret indexing time?
The machine accommodates hydraulic or servo rotary turrets with bi-directional shortest-path tool selection, delivering adjacent tool-to-tool indexing in just 0.3 to 0.5 seconds.
What are the key technical differences between the NXX-46D and NXX-52D models?
The NXX-46D features a Φ56 mm spindle bore, Φ45 mm bar capacity, 0-4000 r/min speed range, 7.5 kW main motor, and MT 4# tailstock. The NXX-52D offers an expanded Φ62 mm spindle bore, Φ51 mm bar capacity, 0-3000 r/min speed range, 11 kW main motor, and MT 5# tailstock.
Does the machine support machining of long-shaft workpieces?
Yes, the machine includes a robust hydraulic-controlled tailstock with a programmable/automatic quill, 80 mm quill travel, and 480 mm body travel, designed specifically for long-shaft workpiece stability.
What bed structure and angle are utilized in this series?
The machine utilizes an integrated premium cast iron base with a 30° slant-bed design crafted via resin-sand casting with reinforced internal ribbing for optimal chip evacuation and vibration damping.