China NXX-36AS Twin-Spindle CNC Lathe Factory | High-Precision Suppliers for Advanced Machining
Machine Structural Features
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Our high-rigidity cartridge-type spindle system features an integrated monoblock structure, paired with a precision-grade imported bearing layout in a 'front-3-rear-2' configuration. Driven by a dedicated rear-mounted servo motor, it delivers exceptional speed stability and heavy-duty cutting capability, making it ideal for high-precision machining scenarios. The base is constructed from high-strength cast iron using a resin-sand casting process. The 45° inclined bed design, combined with a dense reinforcement rib layout, significantly enhances structural rigidity and vibration dampening while optimizing ergonomic operation and chip evacuation efficiency.
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Each X/Z axis is directly coupled with pre-tensioned ball screws via flexible couplings and driven by high-performance servo motors. Combined with high-precision linear guideways and an intelligent centralized lubrication system, the machine achieves high-speed (30m/min rapid traverse) and high-precision positioning with superior thermal compensation. The T-type gang tooling module supports versatile tool configurations, ensuring ultra-fast indexing and interference-free operation.
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The innovative twin-spindle and twin-gang configuration supports simultaneous machining and dynamic synchronization between the main and sub-spindles. By completing all processes in a single setup, the system effectively guarantees superior geometric tolerances and eliminates cumulative errors from secondary handling.
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The hydraulic unit incorporates a famous Taiwan-branded variable displacement pump and a high-efficiency air-cooling system, ensuring ultra-quiet operation and stable temperature control during continuous production.
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The machine features a fully enclosed guarding structure with a modern, aesthetic design and superior sealing performance. The lightweight sliding doors are equipped with a safety interlock mechanism, perfectly balancing operational convenience with workplace safety.
Product Display
Main Technical Specifications
| Item | Unit | NXX-26AS | NXX-36AS | |
| Max. Swing Over Bed | mm | Φ400 | Φ500 | |
| Max. Turning Length | mm | 100 (Unidirectional) | 200 (Unidirectional) | |
| Max. Swing Over Tool Slide | mm | Φ125 | Φ200 | |
| Max. Machining Diameter (Disk / Shaft) | mm | Φ350 / Φ125 | Φ450 / Φ200 | |
| Main & Sub-spindle Bore Diameter | mm | Φ36 | Φ45 | |
| Max. Bar Capacity (Main & Sub-spindle) | mm | Φ25 | Φ35 | |
| Spindle Speed Range (Main & Sub-spindle) | r/min | 0–5000 | 0–5000 | |
| Spindle Speed Steps (Main & Sub-spindle) | Step | CV | CV | |
| Spindle Nose (Main & Sub-spindle) | Flange Type A2-4 | Flange Type A2-4 | ||
| Main & Sub-spindle Motor Power | Kw | 7.5 | 5.5 | |
| Slant Bed Angle | Angle | 65° | 45° | |
| X1 / X2 Axis Rapid Traverse Rate | m/min | 30 | 24 | |
| Z1 / Z2 Axis Rapid Traverse Rate | m/min | 30 | 30 | |
| Max. X1 / X2 Axis Travel (Bi-directional) | mm | 1000 | 1000 | |
| Max. Z1 / Z2 Axis Travel | mm | 350 | 355 | |
| X1 / X2 Axis Servo Motor Power | Kw | 1.5 | 1.3 | |
| Z1 / Z2 Axis Servo Motor Power | Kw | 1.5 | 1.8 | |
| Runout Accuracy (Main & Sub-spindle) | mm | ≤0.003 | ≤0.003 | |
| Spindle Face Flatness (Main & Sub-spindle) | mm | ≤0.01 / Φ100 | ≤0.01 / Φ100 | |
| Coaxiality of Main & Sub-spindle (for Synchronization) | mm | ≤0.01 | ≤0.01 | |
| Repeatability | X1 / X2 Axis | mm | ±0.0025 | ±0.0025 |
| Z1 / Z2 Axis | mm | ±0.0025 | ±0.0025 | |
| C-axis Repeatability (Main & Sub-spindle) | mm | 0.01 | 0.01 | |
| Standard Turret Type | Gang-type Tooling | Gang-type Tooling | ||
| Max. Tool Capacity | pcs | 16 | 16 | |
| Tool Size | O.D. Tool | mm | 20×20 | 20×20 |
| Boring Bar Diameter | mm | Φ25 | Φ25 | |
| Total Power Capacity | Kw | 22 | 18 | |
| Machine Weight (Approx.) | kg | 3500 | 4600 | |
| Floor Space | mm | 2600×1800×2170 | 3350×1810×2260 | |
Frequently Asked Questions
Q1: What is the key difference between the NXX-26AS and NXX-36AS models?
The NXX-26AS features a 65° slant bed angle, a max swing over bed of Φ400mm, and a spindle motor power of 7.5 Kw, while the NXX-36AS has a 45° slant bed, a larger max swing of Φ500mm, and a spindle motor power of 5.5 Kw. The NXX-36AS also supports a larger max bar capacity (Φ35mm vs. Φ25mm) and greater machine weight (4600 kg vs. 3500 kg), making it more suitable for larger workpiece machining.
Q2: What is the advantage of the twin-spindle and twin-gang configuration?
The twin-spindle and twin-gang configuration allows simultaneous machining and dynamic synchronization between the main and sub-spindles. All processes are completed in a single setup, which eliminates cumulative errors from secondary handling and guarantees superior geometric tolerances and dimensional consistency.
Q3: What type of guideways and ball screws are used on these CNC lathes?
Both models use high-precision linear guideways combined with pre-tensioned ball screws that are directly coupled to servo motors via flexible couplings. This configuration achieves a rapid traverse rate of up to 30 m/min and positioning repeatability of ±0.0025 mm, ensuring both speed and accuracy.
Q4: How does the hydraulic system ensure stable and quiet operation?
The hydraulic unit incorporates a Taiwan-branded variable displacement pump combined with a high-efficiency air-cooling system. This design minimizes noise levels and maintains stable oil temperature during continuous production cycles, contributing to long-term reliability and consistent machining performance.
Q5: What safety features are included in the machine guarding structure?
The machines feature a fully enclosed guarding structure with a modern aesthetic design and superior sealing performance. The lightweight sliding doors are equipped with a safety interlock mechanism that prevents operation when the door is open, ensuring operator safety while maintaining convenient access for workpiece loading and inspection.
Q6: What is the maximum tool capacity and tool size supported by the gang-type tooling system?
Both the NXX-26AS and NXX-36AS support a maximum tool capacity of 16 tools using a gang-type tooling system. The O.D. tool size is 20×20 mm, and the boring bar diameter is Φ25 mm. The T-type gang tooling module supports versatile tool configurations and ensures ultra-fast indexing with interference-free operation.