7.5kW Air Cooled ER32 300Hz Spindle Motor
When standard power isn't enough, our High Power Air Cooled Spindle series opens up new possibilities. This 7.5kw Air Cooled Spindle, for instance, provides relentless power for large-scale, heavy-load industrial automation lines. It is a true productivity tool designed for the most demanding manufacturing environments.
■ Product Description
■ Technical Parameters
| Model | STF60-135B-7.5-ER32 |
| Power | 7.5kW |
| Voltage | 220/380V |
| Current | 26.2/15.3A |
| Poles | 2 |
| Torque | 3.98Nm |
| Speed | 18000rpm |
| Frequency | 300Hz |
| Cooling | Air |
| Tool interface | ER32 |
■ Product Advantages
Ultra-Strong Sustained Heavy Cutting Capability (7.5kW)
The power is in the ultra-large power segment, providing extremely high sustained torque and power reserve. It effortlessly handles deep cutting, large-volume milling, and high-speed nesting of super-hard materials, which is key to achieving maximum industrial efficiency and material removal rate.
Ultimate Rigidity from Flying Edge Structure
The short nose (flying edge) design brings the tool clamping point infinitely close to the spindle bearings, providing top-tier anti-bending rigidity. In high-feed, heavy-load cutting tasks, this minimizes spindle and tool vibration, ensuring ultra-high machining precision and tool life.
Maintenance-Free and Reliability of the Air-Cooled System
Uses an integrated fan for forced cooling, completely eliminating the maintenance needs of external water circulation systems, offering extremely high reliability. It is particularly suitable for operation in complex industrial environments requiring 24/7 continuous running.
High Compatibility and High Efficiency
The powerful 7.5kW motor can drive larger diameter tools. When paired with the appropriate collet (such as ER32 or ER40), it meets diverse needs, from large-volume roughing to semi-finishing.
■ Application Scenarios
Ultra-High Efficiency Panel Furniture Machining Centers
Applicable to the largest custom home factories equipped with ATC systems, performing extreme speed, continuous operations like panel cutting, slotting, and drilling.
Heavy-Duty Solid Wood and High-Density Material Deep Processing
Performing deepest-layer, maximum-volume routing, relief carving, and complex 3D shaping on the thickest solid wood, high-hardness artificial wood, and heavy high-density panels.
Large Mold and Prototype Manufacturing Roughing
Used for large-volume, high-strength roughing of large resin, artificial wood, and high-density foam molds, serving as the ultimate power for determining roughing efficiency.
High-Speed Heavy Cutting of Medium-Intensity Metals
Can serve as the core of a high-performance light metal machining center, used for large-feed, large-diameter tool power milling of soft metals like aluminum alloys and copper.
■ Adapted Equipment
● Flagship Automatic Tool Change (ATC) Machining Centers
Ultra-large CNC machines equipped with tool magazines and automatic loading/unloading systems, used for the highest-intensity, most complex multi-process automated production.
● Ultra-Heavy-Duty CNC Nesting Centers
Used as the main cutting unit for continuous, high-intensity, heavy-load production in the panel furniture industry, typically with a gantry structure.
● Large Gantry High-Rigidity Engraving/Milling Machines
Used for roughing and semi-finishing of large-format, high-precision, heavy-duty materials.
● Automated Integration Workstations
Used as the power unit on automated assembly lines for continuous, super-heavy-load, multi-functional processing of products.
■ 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.
