1.5kW 220V Air Cooled ER20 18000 RPM Spindle Motor
Designed for North America and other 220V regions, our 1.5KW Air Cooled Spindle (220V/ER20) solves voltage compatibility issues. This 1.5 kw spindle 220v air cooled is plug-and-play without a transformer. More importantly, it features a versatile ER20 collet, accepting larger tools than standard collets. If you need a 1.5 kw Spindle 220v Air Cooled 65mm, this is your ultimate upgrade.
■ Product Description

■ Technical Parameters
| Model | STF47-82-1.5-ER20 |
| Power | 1.5kW |
| Voltage | 220/380V |
| Current | 5.8/3.2A |
| Poles | 2 |
| Torque | 0.8Nm |
| Speed | 18000rpm |
| Frequency | 300Hz |
| Cooling | Air |
| Tool interface | ER20 |
■ Product Advantages

High Cost-Effectiveness and Practical Power
The 1.5kW power is sufficient for medium-to-light cutting tasks, while maintaining low purchase and running costs, making it highly cost-effective and a standard configuration for many small and medium-sized CNC machines.

High Rigidity from Square Structure
The square casing design ensures more stable mounting and superior rigidity compared to a round spindle of the same power. It effectively suppresses vibration during high-load or fast movement, improving machining precision and tool life.

Air-Cooled Convenience, Minimal Maintenance
Uses fan cooling, eliminating the need for an external water circulation system. Installation is quick, maintenance costs are extremely low, and it is particularly suitable for cold regions or places where water circuit maintenance is inconvenient.

Good Speed Performance
Typically achieves a high speed of 24,000 RPM, ensuring a smooth cutting surface during fine engraving and non-metallic material processing.

Moderate Size, Strong Compatibility
Suitable for integration into various small and medium-sized CNC engraving machines, advertising machines, or small machining centers.
■ Application Scenarios

Advertising Production and Engraving
Fine engraving, cutting, and slotting of advertising signage materials such as acrylic (PMMA), PVC, double-color board, and ABS.

Light Woodworking
Suitable for lettering, routing, and medium-depth relief carving on wooden crafts and small furniture components.

Non-Metallic Model and Prototype Making
Producing models and prototypes from non-metallic materials such as resin, wax molds, and foam.

Light Composite Material Processing
Medium-intensity milling of certain lightweight composite materials.
■ Adapted Equipment
● Small and Medium CNC Engraving Machines
Specifically refers to 3-axis or 4-axis linkage engraving machines with moderate working table sizes.
● Small Advertising Machines/Plotters
Equipment dedicated to the advertising industry for long-duration, high-precision engraving operations.
● General CNC Platforms
General-purpose milling and drilling platforms used in laboratories, teaching environments, or personal workshops.
● Small Automated Trimming Equipment
Used as an execution component on automated production lines for trimming and drilling plastics or thin sheets.
■ 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.