China CNC Turn-Mill Center NXX-46E with Servo Power Turret - Leading Suppliers and Factory Solutions
Structural Features
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Spindle & Bed Construction: This series focuses on reinforcing the rigidity, precision, and load-bearing capacity of core components. It features a monoblock sleeve-type spindle with a "three-front, two-rear" imported precision bearing layout. Driven by a high-performance servo motor, the spindle system ensures high-precision rotational accuracy, high-rigidity support, and consistent speed output to meet heavy-duty machining demands. The bed is constructed from a one-piece cast iron structure with a 30° slant bed design, utilizing premium cast iron and resin sand casting technology. The interior is reinforced with a dense rib-plate configuration, providing exceptional structural rigidity and superior vibration dampening, while offering excellent operator visibility and natural chip evacuation.
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X/Z-Axis Guidance and Drive System: The X/Z axes utilize high-rigidity, high-precision linear guideways paired with precision pre-stretched ball screws. These are directly coupled to servo motors via flexible couplings. Supported by a computer-controlled automatic centralized lubrication system, the guideways and ball screws receive forced lubrication to effectively guarantee high positioning accuracy, suppress thermal deformation, and achieve rapid traverse rates of up to 30 m/min.
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Hydraulic System: The core of the hydraulic station integrates premium Taiwanese components, including a variable displacement pump, high-torque hydraulic motor, and electromagnetic valves. A forced air-cooling module ensures smooth, quiet operation and effective oil temperature control for consistent performance.
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Turn-Mill & Power Turret: The machine features a servo-driven spindle synchronized with a servo power turret, expandable with radial (side) or axial (end) live tooling heads. These heads utilize imported precision gear transmissions, delivering superior rigidity, minimal noise, and high operational accuracy.
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Machining Performance: This configuration significantly enhances machining rigidity, operational stability, and indexing accuracy. With 360° arbitrary spindle indexing (C-axis) and multi-functional capabilities — drilling, tapping, and milling on both side and end faces — complex and large-scale workpieces can be processed with high efficiency in a single setup (Done-in-One).
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Full Enclosure & Safety: The entire machine is encased in a fully enclosed protection system featuring a sophisticated industrial design with excellent sealing and waterproof performance. The sliding operator doors are engineered for effortless movement. For maximum operator protection, the system is equipped with a reliable safety interlock, ensuring a secure and user-friendly working environment that meets rigorous safety standards.
Product Display
Key Technical Specifications
| Item | Unit | NXX-46E | NXX-46EY | NXX-52DEY | |
| Max. Swing Over Bed | mm | Φ460 | Φ480 | Φ480 | |
| Max. Machining Length | mm | 180 (Radial) | 300 | 400 | |
| Max. Swing Over Tool Carrier | mm | Φ160 | Φ380 | Φ440 | |
| Max. Workpiece Dia. (Disk/Shaft) | mm | Φ240/Φ160 | Φ400/φ380 | Φ350/φ350 | |
| Spindle Bore Diameter | mm | Φ56 | Φ56 | Φ62 | |
| Max. Bar Capacity | mm | Φ45 | Φ45 | Φ51 | |
| Spindle Speed Range | r/min | 0–4000 | 0–4000 | 0–3000 | |
| Spindle Speed Steps | Step | CV | CV | CV | |
| Spindle Nose Type | Flange Type A2-5 | Flange Type A2-5 | Flange Type A2-6 | ||
| Main Motor Power | Kw | 5.5 | 7.5 | 11 | |
| Bed Slant Angle | ° | 30 | 30 | 30 | |
| X-axis Rapid Traverse Rate | m/min | 24 | 24 | 30 | |
| Z-axis Rapid Traverse Rate | m/min | 30 | 30 | 30 | |
| Y-axis Rapid Traverse Rate | m/min | 30 | 12 | ||
| X-axis Max. Travel (Unidirectional) | mm | 560 | 480 | 460 | |
| Z-axis Max. Travel | mm | 330 | 380 | 550 | |
| Y-axis Max. Travel | mm | 110 | 110 | ||
| X/Z-axis Servo Motor Power | KW | 1.5 | 2.4 | 3.1/2.4 | |
| Tailstock Quill Diameter | mm | Φ80 | |||
| Tailstock Quill Travel | mm | 80 | |||
| Tailstock Taper | mm | 5# | |||
| Tailstock Body Travel | mm | 480 | |||
| Spindle Radial/Axial Run-out | mm | ≤0.003 | ≤0.003 | ≤0.003 | |
| Spindle Flatness Accuracy | mm | ≤0.01/Φ100 | ≤0.01/Φ100 | ≤0.01/Φ100 | |
| Live Tool Spindle Taper Run-out | mm | ≤0.006 | ≤0.006 | ≤0.006 | |
| Repeatability Accuracy | X-axis | mm | ±0.0025 | ±0.0025 | ±0.0025 |
| Z-axis | mm | ±0.0025 | ±0.0025 | ±0.0025 | |
| Spindle (C-axis) Repeatability | mm | 0.01 | 0.01 | 0.01 | |
| Standard Turret Type | Servo Power Turret | Servo Power Turret | Servo Power Turret | ||
| Max. Tool Capacity | pcs | 12 | 12 | 12 | |
| Tool Change Time (Adjacent) | S | 0.3 | 0.3 | 0.3 | |
| Tool Size | O.D. Tool | mm | 20×20 | 25×25 | 25×25 |
| Boring Bar Diameter | mm | Φ25 | Φ40 | Φ40 | |
| Live Tooling Type | ER25 | ER25/ER32 + Y-axis | ER25/ER32 + Y-axis | ||
| Live Tooling Motor Power | Kw | 3.7 | 3.1+0.75+2.4 | 3.1+0.75+2.4 | |
| Max. Live Tooling Speed | r/min | 3000–6000 | 3000–6000 | 3000–6000 | |
| Max. Collet Capacity | mm | Φ16 | Φ16/Φ20 | Φ16/Φ20 | |
| Max. Tapping Capacity | mm | M10 | M10/14 | M10/14 | |
| Total Power Capacity | Kw | 13 | 19.5 | 24 | |
| Machine Weight (Approx.) | kg | 3500 | 3700 | 4200 | |
| Dimensions (L×W×H) | mm | 2200×1850×1950 | 2330×1970×2300 | 2635×1800×2050 | |
Frequently Asked Questions
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What is the key difference between the NXX-46E, NXX-46EY, and NXX-52DEY models?
The NXX-46E is the base model with a 5.5 Kw main motor, ER25 live tooling, and no Y-axis. The NXX-46EY adds a Y-axis (±110 mm travel), higher motor power (7.5 Kw), and expanded ER25/ER32 live tooling with Y-axis capability. The NXX-52DEY is the most powerful variant, featuring an 11 Kw motor, a larger spindle bore (Φ62 mm), a tailstock, and greater Z-axis travel (550 mm), making it ideal for larger and more complex workpieces.
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What is the advantage of the 30° slant bed design?
The 30° slant bed design, combined with a one-piece cast iron structure and dense internal rib-plate configuration, provides exceptional structural rigidity and superior vibration dampening. This layout also improves chip evacuation (chips fall away naturally from the cutting zone), enhances operator visibility and accessibility, and contributes to longer tool life and better surface finish quality during heavy-duty machining.
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Can these machines perform milling and drilling operations in addition to turning?
Yes. All three models are equipped with a servo power turret and live tooling heads (radial/axial). With 360° arbitrary spindle indexing (C-axis function), the machines support drilling, tapping, and milling on both side and end faces of the workpiece. The NXX-46EY and NXX-52DEY further extend this capability with a Y-axis, enabling off-center milling and complex contour machining — all in a single setup (Done-in-One).
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How is positioning accuracy maintained over long-term operation?
Positioning accuracy is maintained through a combination of precision pre-stretched ball screws, high-rigidity linear guideways, and a computer-controlled automatic centralized lubrication system that provides forced lubrication to all critical components. This minimizes thermal deformation and mechanical wear. The X/Z-axis repeatability accuracy is ±0.0025 mm, and spindle radial/axial run-out is kept at ≤0.003 mm, ensuring consistent precision throughout the machine's service life.
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What safety features are included in these CNC turning centers?
The machines feature a fully enclosed protection system with excellent sealing and waterproof performance. The sliding operator doors are engineered for smooth, effortless operation. A reliable safety interlock system is standard, preventing the machine from operating when the door is open. These measures collectively ensure a secure working environment that meets rigorous international safety standards for CNC machine tools.
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What type of hydraulic system is used, and how is oil temperature managed?
The hydraulic station integrates premium Taiwanese components, including a variable displacement pump, high-torque hydraulic motor, and electromagnetic valves. To ensure long-term stable performance, a forced air-cooling module is incorporated into the system. This module actively manages oil temperature, preventing overheating during continuous operation, which results in smooth, quiet hydraulic performance and extended component service life.