Searching for the perfect power core for your CNC router? Our CNC Router Air Cooled Spindle is exactly what you need. As a leading Air Cooled CNC Router Spindle China supplier, our Factory-direct products offer an unbeatable advantage in both performance and price. This air cooled cnc router spindle is designed for applications like woodworking, advertising, and mold making. Check out our Air Cooled CNC Router Spindle For Sale to elevate your engraving efficiency.
■ Product Description

■ Technical Parameters
| Model | STF60-103-4.5-ER32 |
| Power | 4.5kW |
| Voltage | 220/380V |
| Current | 15.2/9.1A |
| Poles | 2 |
| Torque | 2.39Nm |
| Speed | 18000rpm |
| Frequency | 300Hz |
| Cooling | Air |
| Tool interface | ER32 |
■ 4.5KW Air Cooled Spindle Motor Advantages

Powerful Heavy-Duty Cutting Capability
The 4.5kW power segment is in the high-power range, providing high torque output. It can easily handle deep cutting and high-speed nesting of high-hardness panels and thick solid wood, significantly boosting material removal rate and production efficiency.

Exceptional Structural Rigidity
The square casing design ensures extreme stability during spindle mounting. In prolonged, high-load, heavy-cutting tasks, it effectively resists lateral cutting forces and maintains extremely low radial runout, thereby guaranteeing machining precision and significantly extending tool life.

Convenience of Air-Cooled System
Uses an integrated fan for cooling, eliminating the need for external pumps, water tanks, and hoses. Installation is quick and maintenance is simple, making it particularly suitable for industrial environments with high dust levels, varying ambient temperatures, or inconvenient water line maintenance.

High-Speed Compatibility
Capable of high speeds ranging from 18,000 to 24,000 RPM. Built on a foundation of high torque, it can still meet the finishing requirements for surface quality.

High Reliability and Continuous Operation Capability
Suitable for industrial-grade continuous operation. Stable heat dissipation and robust bearing configuration ensure stable performance and long-term durability during prolonged work hours.
■ Application Scenarios

Industrial-Grade Wood Nesting Centers
Applicable to the extremely high-efficiency panel cutting, slotting, and drilling for panel furniture and custom home production lines, easily handling wood-based panels of any thickness.

Heavy-Duty Solid Wood Engraving and Shaping
Performing large-volume, deep-layer relief carving, routing, and complex 3D shape processing on solid wood, thick artificial wood, and high-density materials.

Fast Processing of Thick Non-Metallic Panels
Suitable for fast, single-pass cutting of extremely thick acrylic, epoxy resin, high-density foam, and other materials.

Medium-Intensity Light Metal Processing
Can be used for larger tool sizes and high feed rates in milling and drilling of soft metals like aluminum alloys and copper sheets, serving as the core power for light metal machining centers.
■ Adapted Equipment
● High-Performance CNC Nesting Machines/Machining Centers
Industrial-grade machining centers for panel furniture, equipped with automatic tool change systems and automatic loading/unloading platforms, used for high-intensity, high-automation production.
● Large Gantry Engraving Machines
Large working table sizes (such as 2040 or larger), used for large-format, heavy-duty material engraving and cutting.
● Heavy-Duty Wood Engraving/Milling Machines
Dedicated to the high-precision, high-rigidity processing of complex wooden molds and shaped parts.
● Medium Industrial CNC Milling Machines
Used for high-efficiency, high-reliability milling operations on general materials (including soft metals like aluminum and copper).
■ 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.