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.
| Item | Unit | NXX-46D | NXX-52D | |
| Max. Swing Over Bed | mm | Φ 450 | Φ 450 | |
| Max. Machining Length | mm | 500 | 500 | |
| Max. Swing Over Cross Slide (Carriage) | mm | Φ 220 | Φ 220 | |
| Max. Workpiece Dia. (Disk / Shaft) | mm | Φ 450 / Φ 220 | Φ 450 / Φ 220 | |
| Spindle Bore Diameter | mm | Φ 56 | Φ 62 | |
| Max. Bar Capacity | mm | Φ 45 | Φ 51 | |
| 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 | Φ 80 | Φ 80 | |
| Tailstock Quill Travel | mm | 80 | 80 | |
| Tailstock Spindle Taper (MT) | MT | MT 4 | MT 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 / Φ 100 | ≤ 0.01 / Φ 100 | |
| 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 | Φ 32 | Φ 32 | |
| 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 | |
The main differences lie in their spindle capabilities and motor power. The NXX-46D features a spindle speed of up to 4000 r/min, a spindle bore of Φ56mm, and a 7.5 Kw main motor. The NXX-52D offers a larger spindle bore of Φ62mm, a main motor power of 11 Kw, and a spindle speed of 3000 r/min, making it better suited for larger bar capacities.
The machine uses a monolithic cartridge-type spindle unit supported by imported precision bearings in a '3+2' layout (front-triple, rear-double). This design delivers high rigidity, rotational precision, and heavy load capacity during high-speed machining.
The machine features a 30° integrated slant-bed base cast from premium resin-sand iron. This construction optimizes structural rigidity, provides excellent vibration damping, facilitates easy chip evacuation, and improves operator ergonomics.
The machine features either a hydraulic or servo rotary turret supporting bi-directional shortest-path tool selection. It delivers a lightning-fast tool-to-tool indexing time of 0.3 to 0.5 seconds, which is optimal for highly efficient heavy-duty component machining.
Yes, it features a hydraulic-controlled tailstock with a fully programmable/automatic quill. This structural configuration ensures excellent stability and ease of operation when processing long-shaft workpieces.