Model A2005771 Heavy-Duty Machining Center Spindle
Engineered for High-Power, High-Stability Production Milling
The A2005771 electric spindle is a robust power unit designed for demanding applications in machining centers, delivering exceptional torque and rigidity for heavy cutting operations on steel, cast iron, and alloys. With a substantial 120mm outer diameter, 11 kW of power, and 12 N·m of torque, it is built to maximize material removal rates while maintaining precision and stability under significant load.
Technical Overview & Design Philosophy
Built as a core component for industrial machining centers, the A2005771 prioritizes structural integrity and thermal management. Its high rigidity (Axial: 105 N/µm, Radial: 210 N/µm) is achieved through a robust bearing configuration and optimized housing design. The integrated high-capacity cooling system ensures consistent performance and protects critical components during continuous, high-power operation, making it ideal for prolonged production cycles.
Core Performance Advantages
- High Power & Exceptional Torque: 11 kW rated power and 12 N·m of torque provide formidable force for aggressive milling, face milling, and deep cavity machining.
- Superior Rigidity & Accuracy: Exceptionally high axial and radial stiffness minimizes tool deflection, ensuring dimensional accuracy and superior surface finish even during heavy cuts. The precise taper (runout ≤ 2.0µm @ 25mm) guarantees reliable tool positioning.
- Industrial-Grade Bearing System: Features a heavy-duty bearing setup (Front: 7007×2, Rear: 71910×4) with grease lubrication, engineered for longevity and smooth operation under load.
- Advanced Thermal Control: Requires a high-performance oil or water cooling system (>6 L/min, >1 kW chiller) to effectively manage heat, ensuring thermal stability and protecting spindle life.
- Designed for Automation: Equipped with a standard BBT30 tool holder, high drawbar force (2500-3000 N), and configured for PNP/NO tool change signals, enabling seamless integration into automated pallet systems.
- Configurable Interface: Encoder type and other interface options can be selected to match your specific CNC control system for optimal compatibility.
Detailed Technical Specifications
| Category | Parameter | Specification |
|---|---|---|
| General & Ordering | Spindle Designation | Motorized Spindle |
| Model | A2005771 | |
| Mounting Orientation | Vertical | |
| Warranty | 1 Year | |
| Performance | Maximum Speed | 27,000 rpm |
| Rated Power | 11 kW | |
| Rated Torque | 12 N·m | |
| Radial Stiffness | 210 N/µm | |
| Axial Stiffness | 105 N/µm | |
| Taper Runout | ≤ 2.0 µm @25mm; ≤ 8.0 µm @250mm | |
| Dynamic Balance Grade | G0.4 | |
| Mechanical Interface | Tool Holder | BBT30 |
| Drawbar Force | 2500 – 3000 N | |
| Bearing Specification | 7007 × 2, 71910 × 4 | |
| Lubrication | Grease | |
| Spindle Weight | 26 kg | |
| System Interfaces & Requirements | Drive | Built-in Motor |
| Encoder Signal | Sine Wave / 128-tooth | |
| Tool Change Signal | PNP / NO (Normally Open) | |
| Cooling Method | Configurable: Oil or Water Coolant Flow > 6 L/min, Chiller Temp = Ambient + (0~2)°C, Max. Inlet Temp 30°C, Cooling Power > 1 kW | |
| Air Seal Pressure | 2 – 7 bar | |
| Clean Air Pressure | 2 – 7 bar | |
| Tool Release Pressure | 5 – 7 bar | |
| Tool Release Air Volume | 174 cm³ |
Primary Applications
This spindle is engineered for heavy-duty machining tasks, including:
- Heavy roughing and finishing of steel and cast iron components
- Mold and die manufacturing for large tools
- Production milling of structural parts in aerospace and heavy machinery
- Any high-power milling application demanding utmost rigidity and stability
Value Proposition
The A2005771 is built to be the reliable powerhouse at the center of your production. It transforms your machining center’s capability, enabling faster cycle times, longer tool life through reduced vibration, and consistent part quality. Its robust design and configurable options provide a tailored, high-performance solution for serious manufacturing environments.
Power Your Production Line. Contact our engineering team to discuss configuration options and integration details for the A2005771 Heavy-Duty Spindle, and to request a formal quotation.