Engineered specifically for CNC applications, our CNC Air Cooled Spindle delivers robust power for your automated machining. This air cooled cnc spindle is optimized for seamless integration with various numerical control systems. Its efficient air-cooling design ensures the spindle air cooled cnc maintains optimal working temperature and accuracy during long engraving and cutting tasks. Choosing our air spindle cnc means choosing stability and efficiency.
■ Product Description

■ Technical Parameters
| Model | STF60-103-7.5-ER40 |
| Power | 7.5kW |
| Voltage | 380V |
| Current | 15.3A |
| Poles | 2 |
| Torque | 3.98Nm |
| Speed | 18000rpm |
| Frequency | 300Hz |
| Cooling | Air |
| Tool interface | ER40 |
■ Product Advantages

Maximum Tool Compatibility (ER40)
The ER40 collet is one of the largest clamping diameter specifications among the common ER series (typically clamping up to 26mm). It can securely grip all kinds of extra-large diameter roughing tools and drills. This gives it a decisive advantage in heavy-duty nesting and rough milling tasks that require large tools for fast material removal.

Ultra-Strong Heavy Cutting Power (7.5kW)
Provides outstanding sustained torque and robust power reserves, easily driving large tools clamped by the ER40 at high speeds and high feed rates. This ensures extremely high material removal rates and industrial production efficiency.

Ultimate Structural Rigidity and Stability
The square casing design, combined with optimized internal structure, maintains top-tier anti-vibration and radial runout accuracy even under the high power output of 7.5kW. This stability is crucial for performing prolonged heavy cutting and guaranteeing final part precision.

Reliability and Convenience of the Air-Cooled System
Uses an integrated fan for forced cooling, completely eliminating all maintenance hassles of water-cooled systems (water quality, pump, antifreeze). This significantly boosts the equipment's reliability and uptime in industrial environments requiring 24/7 continuous operation.

Industrial-Grade Bearing Configuration
Specifically designed for high load and long life, ensuring stable performance and low maintenance requirements during sustained, high-intensity work.
■ Application Scenarios

Ultra-Large Scale Panel Nesting Centers
Applicable to large custom home factories, construction template industries, etc., requiring the use of extra-large diameter nesting cutters for high-speed, large-volume cutting and slotting to achieve maximum production capacity.

Ultra-Heavy-Duty Solid Wood and Foam Shaping
Performing deepest-layer, maximum-volume 3D surface roughing on solid wood, thick artificial wood, and high-density foam, suitable for large mold manufacturing and sculpture.

Deep Processing of Thick, Heavy Composite Materials
Fast, deep milling of extremely thick engineering plastics, high-density epoxy resin, and other heavy composite materials.

High-Load Aluminum Milling
Can serve as the core of a light metal machining center, used for large-diameter tool, high-feed rate power milling of soft metals like aluminum alloys and engineering plastics.
■ Adapted Equipment
● Ultra-Large Gantry Machining Centers
Dedicated to heavy milling, nesting, and deep cutting of extra-large format materials.
● Heavy-Duty Industrial Nesting Machines
Especially automated production lines that require extra-large diameter tools for single-pass cutting of thick panels.
● Large Mold Manufacturing CNC Machines
Equipment used for rapid material removal (roughing) of large resin and artificial wood molds, where roughing efficiency is extremely critical.
● Customized Heavy-Duty Multi-Station Machinery
Custom production lines that require multiple spindles to work simultaneously, with stringent demands on the power and clamping capability of each spindle.
■ 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.