China Suppliers NXX-46ESY: Precision Slant-Bed Twin-Spindle Turn-Mill Center from Leading Factory
Machine Structural Features
Core Spindle System
Heavy-Duty Integral Sleeve Spindle:
Engineered for sustained heavy-cutting conditions, the spindle features a robust integral sleeve-type design. It integrates a "Three-Front, Two-Rear" configuration of imported precision bearings, powered by a rear-mounted servo motor. This combination delivers a consistent output of high speed, high precision, and exceptional rigidity.
Robust Bed Architecture:
Utilizing a 30° slant-bed layout, the machine base is cast from high-quality resin-sand cast iron. The internal structure features a dense reinforcement ribbing system, delivering a superior combination of high rigidity, exceptional vibration damping, ergonomic operator convenience, and efficient automatic chip evacuation.
High-Speed Precision Feed System
High-Performance Linear Motion System:
The X and Z axes are equipped with high-rigidity, heavy-duty linear guideways and precision pre-tensioned ball screws. Driven by direct-coupled servo motors and supported by an automatic forced lubrication system, the axes achieve rapid traverse speeds of up to 30 m/min while ensuring superior positioning accuracy and minimal thermal deformation.
Advanced Y-Axis Servo Power Turret:
Equipped with a high-precision Y-axis box-way dual-side servo power turret, this system offers exceptional reliability and low failure rates. It supports rapid, nearest-path tool indexing for maximum efficiency. The turret disk is designed for flexible tool loading, unaffected by additional live tool attachments or workpiece dimensions, ensuring superior adaptability for diverse machining tasks.
Top-Tier Turn-Mill Capabilities
Integrated Multi-Tasking Machining Cell:
This represents the ultimate highlight of the machine. By integrating rear-mounted servo main and sub-spindles, a Y-axis servo power turret, and imported precision gear-driven live tooling (for both radial and axial milling), we have built a complete, high-performance turn-mill unit.
⭐ Key Advantage: This system significantly enhances machining rigidity, thermal stability, and indexing precision. It supports infinite C-axis indexing and dynamic workpiece handover (on-the-fly) between main and sub-spindles, effectively eliminating secondary setup errors. Complex geometries, large components, and parts with strict concentricity requirements can be completed—from turning and milling to drilling and tapping—in a single setup. This ensures maximum machining accuracy while drastically shortening the overall manufacturing cycle.
Reliable Auxiliary Systems
Advanced Hydraulic & Safety Systems:
The hydraulic station utilizes high-performance variable displacement pumps and core components from top-tier Taiwanese brands, equipped with an integrated air-cooling system. This ensures exceptionally quiet operation and precise oil temperature control even during extended shifts.
The machine features a stylish, fully enclosed protective housing that is completely waterproof and chip-proof. For maximum operator protection, the sliding doors are equipped with safety interlocks, ensuring a secure and user-friendly working environment.
The machine features a stylish, fully enclosed protective housing that is completely waterproof and chip-proof. For maximum operator protection, the sliding doors are equipped with safety interlocks, ensuring a secure and user-friendly working environment.
Main Technical Specifications
| Item | Unit | NXX-46ESY | |
| Max. Swing Diameter Over Bed | mm | Φ500 | |
| Max. Machining Length | mm | 420 | |
| Max. Swing Diameter Over Turret Sub-plate | mm | Φ500 | |
| Max. Turning Diameter (Disk/Shaft) | mm | Φ260/Φ260 | |
| Spindle / Sub-spindle Bore Diameter | mm | φ56/φ56 | |
| Max. Bar Capacity (Main / Sub-spindle) | mm | Φ45/φ45 | |
| Spindle Speed Range | r/min | 0-4000 | |
| Spindle Speed Steps | Steps | CV | |
| Spindle / Sub-spindle Nose | Flange Type A2-5/A2-5 | ||
| Main / Sub-spindle Motor Power | Kw | 11 | |
| Slant Bed Angle | ° | 30 | |
| X-axis Rapid Traverse Rate | m/min | 30 | |
| Z1 / Z2-axis Rapid Traverse Rate | m/min | 30 | |
| Y-axis Rapid Traverse Rate | m/min | 30 | |
| X-axis Max. Travel (One-way) | mm | 330 | |
| Z1 / Z2-axis Max. Travel | mm | 540/580 | |
| Y-axis Max. Travel | mm | 110 | |
| X-axis Servo Motor Power | Kw | 3.1 | |
| Z1 / Z2-axis Servo Motor Power | Kw | 2.4/2.4 | |
| Spindle / Sub-spindle Radial & Axial Runout | mm | ≤0.003 | |
| Spindle / Sub-spindle Flatness Accuracy | mm | ≤0.01/Φ100 | |
| Main / Sub-spindle Handover Concentricity | mm | ≤0.01 | |
| Live Tooling Spindle Taper Runout | mm | ≤0.006 | |
| Repeatability Accuracy | X-axis | mm | ±0.0025 |
| Z-axis | mm | ±0.0025 | |
| C-Axis Repeatability | mm | 0.01 | |
| Standard Turret Type | Servo Power Turret | ||
| Max. Tool Capacity | pcs | 12 | |
| Tool Indexing Time (Adjacent) | S | 0.3 | |
| Tool Size | O.D. Tool | mm | 25×25 |
| Boring Bar Diameter | mm | Φ40 | |
| Live Tooling Type | ER25/ER32 + Y-axis | ||
| Live Tool Motor Power | Kw | 3.1+0.75+2.4 | |
| Max. Live Tool Speed | r/min | 3000-6000 | |
| Max. Clamping Capacity | mm | Φ16/Φ20 | |
| Max. Tapping Capacity | mm | M10/14 | |
| Total Power Capacity | Kw | 37 | |
| Machine Weight (Approx.) | kg | 5500 | |
| Machine Dimensions (L×W×H) | mm | 3210×2050×2250 | |
? Frequently Asked Questions
Q What makes the NXX-46ESY spindle system suitable for heavy-duty machining?
The NXX-46ESY features a heavy-duty integral sleeve spindle with a "Three-Front, Two-Rear" configuration of imported precision bearings driven by a rear-mounted servo motor. This design ensures high speed, high precision, and exceptional rigidity, making it ideal for sustained heavy-cutting operations.
Q What is the maximum rapid traverse speed of the NXX-46ESY?
The X, Z1/Z2, and Y axes all achieve a maximum rapid traverse speed of 30 m/min. This is made possible by high-rigidity linear guideways, precision pre-tensioned ball screws, and direct-coupled servo motors with an automatic forced lubrication system.
Q Can the NXX-46ESY complete complex parts in a single setup?
Yes. The integrated turn-mill unit combines rear-mounted servo main and sub-spindles, a Y-axis servo power turret, and precision gear-driven live tooling. This enables turning, milling, drilling, and tapping to be completed in a single setup, eliminating secondary setup errors and significantly reducing the manufacturing cycle.
Q What is the repeatability accuracy of the X and Z axes?
Both the X-axis and Z-axis achieve a repeatability accuracy of ±0.0025 mm, ensuring consistent and precise machining results across production runs.
Q How does the Y-axis servo power turret improve machining flexibility?
The Y-axis box-way dual-side servo power turret supports rapid nearest-path tool indexing with an adjacent indexing time of just 0.3 seconds. It accommodates up to 12 tools and is compatible with ER25/ER32 live tooling, allowing flexible tool loading regardless of additional live tool attachments or workpiece dimensions.
Q What safety and environmental protection features does the NXX-46ESY include?
The machine is equipped with a fully enclosed, waterproof, and chip-proof protective housing. Sliding doors feature safety interlocks for maximum operator protection. The hydraulic station uses high-performance variable displacement pumps with an integrated air-cooling system, ensuring quiet operation and stable oil temperature control during extended production shifts.