China NXX-36AS CNC Lathe: Twin-Spindle, Twin-Gang Precision Machine from Leading Suppliers and Factory
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
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What is the key difference between the NXX-26AS and NXX-36AS models?
The main differences lie in machining capacity and size. The NXX-36AS offers a larger max. swing over bed (Φ500mm vs Φ400mm), greater max. turning length (200mm vs 100mm), larger spindle bore (Φ45mm vs Φ36mm), and a larger bar capacity (Φ35mm vs Φ25mm), making it more suitable for larger workpieces. The NXX-26AS features a 65° slant bed angle and higher X-axis rapid traverse (30m/min vs 24m/min).
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What advantages does the twin-spindle and twin-gang configuration offer?
The twin-spindle and twin-gang configuration enables simultaneous machining on both the main and sub-spindles with dynamic synchronization. All processes can be completed in a single setup, which eliminates cumulative errors from secondary handling, ensures superior geometric tolerances, and significantly improves production efficiency and part consistency.
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What type of guideway system is used, and how does it affect performance?
Both models use high-precision linear guideways combined with pre-tensioned ball screws directly coupled via flexible couplings. This configuration, driven by high-performance servo motors, achieves rapid traverse speeds of up to 30m/min and positioning repeatability of ±0.0025mm, along with superior thermal compensation for consistent accuracy during long production runs.
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How does the hydraulic system maintain stable performance during continuous production?
The hydraulic unit incorporates a Taiwan-branded variable displacement pump combined with a high-efficiency air-cooling system. This design ensures ultra-quiet operation and stable temperature control throughout continuous production cycles, preventing thermal drift and maintaining consistent hydraulic pressure for reliable clamping and axis performance.
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What tooling system do the NXX-AS series machines use, and how many tools can be mounted?
Both the NXX-26AS and NXX-36AS use a T-type gang-type tooling system as standard. Each machine supports a maximum tool capacity of 16 tools, with O.D. tool size of 20×20mm and boring bar diameter up to Φ25mm. The gang tooling module ensures ultra-fast indexing and interference-free operation for versatile machining tasks.
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What safety and ergonomic features are included in the machine design?
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 to prevent accidental opening during operation. The 45° inclined bed design also improves operator ergonomics and chip evacuation efficiency, contributing to a safer and cleaner working environment.