ER25 3.5kW Air Cooled Spindle Motor 220V
Looking for a powerful and versatile spindle? Our 3.5KW Air Cooled Spindle is the perfect choice. This 3.5 kw spindle offers an extra reserve of power, making it more capable when processing hardwoods and non-ferrous metals. The core 3.5 kw spindle motor is specially reinforced to ensure stable output even under high loads.
■ Product Description
■ Technical Parameters
| Model | STF47-110B-3.5-ER25 |
| Power | 3.5kW |
| Voltage | 220/380V |
| Current | 12.1/7.2A |
| Poles | 2 |
| Torque | 1.59Nm |
| Speed | 18000rpm |
| Frequency | 300Hz |
| Cooling | Air |
| Tool interface | ER25 |
■ Product Advantages
Superiority of the ER25 Collet
The ER25 collet, compared to ER20 or smaller collets, can securely clamp larger diameter tools (typically up to 16mm). This allows the spindle to handle larger cutting depths and deeper slotting, significantly boosting the efficiency of roughing operations.
Flying Edge Structure and High Rigidity
The short nose design pulls the tool clamping point closer to the spindle bearings, which greatly enhances the bending rigidity at the spindle nose. This effectively suppresses vibration during medium-to-heavy cutting, which is crucial for guaranteeing machining precision and tool life in automated ATC systems requiring continuous, long-term operation.
Robust Cutting Torque (3.5kW)
Provides ample cutting force, supporting higher feed rates and cutting depths, ensuring a high material removal rate for medium-hardness materials.
Built for Automatic Tool Changer (ATC) Systems
This flying edge spindle structure is inherently suitable for integration into ATC systems, making it the ideal core power unit for automated production lines. It achieves multi-process, continuous production through rapid tool changes.
Air-Cooled Convenience and High Reliability
Uses an integrated fan for cooling, completely eliminating the maintenance needs of external water circulation systems. Reliability is extremely high, making it particularly suitable for continuous operation in industrial settings where it avoids downtime caused by water circuit failures.
■ Application Scenarios
Automated Panel Furniture Heavy Processing
Applicable to CNC nesting machines and machining centers equipped with ATC systems, performing high-efficiency, large-diameter tool operations like panel cutting, slotting, and drilling, thereby boosting nesting efficiency.
Complex 3D Shape Roughing
Performing medium-depth, large-volume routing and roughing on solid wood, thick MDF, and artificial wood; the ER25 collet is particularly well-suited for roughing tools.
High-Precision Component and Prototype Manufacturing
Multi-process automatic tool change milling and drilling of materials such as resin, engineering plastics, and light alloys, demanding high cutting quality and geometric accuracy.
Precision Processing of Light Metal Materials
Can be used for milling and drilling of soft metals like aluminum alloys and copper sheets, with high rigidity ensuring machining stability.
■ Adapted Equipment
● Medium Automatic Tool Change (ATC) CNC Machining Centers
Woodworking or advertising industry machines equipped with tool magazines, requiring the use of large-diameter tools for moderate cutting and multi-process automated production.
● High-Performance CNC Nesting Centers
Used as the main cutting unit for continuous, high-efficiency production in the panel furniture industry.
● General High-Rigidity CNC Milling Machines
Used in small workshops, laboratories, or for precision part prototyping, requiring the spindle to have high rigidity, high precision, and an auto tool change function.
● Automated Integration Workstations
Used as the power unit on automated assembly lines for continuous, multi-functional, large-volume 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.
