2.2KW Air Cooled Spindle Motor,18000rpm,ER20
Upgrade your CNC machine, starting with a powerful motor. Our 2.2KW Air Cooled Spindle Motor is key to enhancing your equipment's performance. This Air Cooled CNC Spindle Motor is designed for applications requiring higher torque and speed. As a dedicated 2.2 kw Air Cooled Spindle Motor Factory, we offer more than just a product For Sale; we provide comprehensive technical support to ensure your machine is powerfully equipped.
■ Product Description

■ Technical Parameters
| Model | STF47-110B-2.2-ER20 |
| Power | 2.2kW |
| Voltage | 220/380V |
| Current | 7.9/4.6A |
| Poles | 2 |
| Torque | 1.17Nm |
| Speed | 18000rpm |
| Frequency | 300Hz |
| Cooling | Air |
| Tool interface | ER20 |
■ Product Advantages

High Precision and High Stability
Spindles designed for automation typically have superior internal structure and bearing configuration compared to standard engraving spindles, featuring lower radial runout and higher balance, suitable for precision-demanding machining tasks.

Compact and Short Overhang Design
The "flying edge" or short nose design means the tool clamping point is closer to the spindle bearings, which greatly increases cutting rigidity and reduces vibration and deformation during cutting.

Air-Cooled Convenience, Low Maintenance Cost
Uses an integrated fan for cooling, eliminating the need for an external water circulation system. Maintenance is simple, reliability is high, and it is suitable for continuous operation in industrial settings.

2.2kW Practical Power
The power is moderate, sufficient to meet the finishing, drilling, and light milling needs for most medium-to-light duty materials (such as wood, plastics, and aluminum).
■ Application Scenarios

Light ATC CNC Machines
Suitable for entry-level automated production lines equipped with a small tool magazine (tool carousel) and requiring automatic tool change for multi-process operations.

Electronics Industry PCB/Drilling
Used for high-speed, high-precision micro-drilling and cutting of circuit boards; its short nose design helps enhance accuracy.

Precision Woodworking and Furniture Component Processing
High-precision drilling, slotting, and shaping of solid wood and panels, especially in scenarios requiring frequent tool and drill bit changes.

Medical/Educational Model Manufacturing
Fine milling of materials such as plastics, resin, and light alloys, demanding high cutting quality and geometric accuracy.
■ Adapted Equipment
● Small Automatic Tool Change (ATC) Engraving Machines
CNC engraving machines equipped with a small tool magazine (4-8 tools).
● Multi-functional Drilling/Milling Centers
Machining equipment dedicated to multi-station, multi-function processing of panels or parts.
● Precision Desktop CNC Machines
Machining platforms used for small parts and high-precision models.
● Light Automation Integration Equipment
Used as an executing unit on automated production lines for secondary fine machining or drilling of parts.
■ FAQ
Q: How to choose the right power?A: It depends on the material you're processing.
2.2kW: Suitable for engraving materials like acrylic and PVC.
3kW - 4.5kW: Most common, used for nesting and engraving various wood panels.
6kW and above: Ideal for heavy cutting, like cutting solid wood.
Q: What should be noted when using an air-cooled spindle?A: Keep it clean, don't overload it, and check if the fan is spinning correctly.
Q: How to match an air-cooled spindle with an inverter?A: The inverter's power, voltage, and frequency must match the spindle's specifications.
Q: Is it normal for an air-cooled spindle to get hot during use?A: Slight warmth is normal. However, if it feels very hot to the touch, the fan may be broken or the spindle could be overloaded.
Q: What is the typical lifespan of an air-cooled spindle?A: The lifespan of an air-cooled spindle mainly depends on its bearings. With proper maintenance and without overloading, a good spindle can last for thousands or even tens of thousands of hours.