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Everything You Need to Know About the 2.2 kW Air Cooled Spindle

When it comes to precision CNC machining, the 2.2 kW air cooled spindle is one of the most popular choices among small to medium-sized workshops.

Whether you’re working with wood, plastic, or soft metals, this spindle offers a great balance of power, durability, and cooling efficiency.

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What Is a 2.2kW Air Cooled Spindle?

A 2.2kW air cooled spindle is a high-speed motor used in CNC router machines to drive cutting tools. It is cooled by a built-in fan, eliminating the need for a water pump or cooling tank. This makes it easy to install and maintain, especially for users in dry or mobile environments.

Everything You Need to Know About the 2.2 kW Air Cooled Spindle

Key Features

  • Power Rating: 2.2 kW (3.0 HP)

  • Cooling Type: Air cooled with integrated fan

  • Speed Range: 6,000 – 24,000 RPM

  • Collet Size: ER20 (accepts up to 13mm bits)

  • Voltage: 220V, single-phase or three-phase options

  • Bearings: High-speed, low-noise ceramic or angular contact bearings

  • Runout Tolerance: ≤ 0.01mm

  • Weight: Around 6-8 kg

Advantages of a 2.2 kW Air Cooled Spindle

  • No water system required – easier installation

  • Compact and lightweight – ideal for desktop CNCs and small routers

  • Low maintenance – no water pipes or pump cleaning

  • Stable performance – works well under long-time operation

  • Excellent for wood engraving, acrylic cutting, PVC milling, and even light aluminum machining

Applications and Industries

The 2.2kw air cooled spindle is widely used in:

  • Woodworking (furniture carving, cabinetry, sign making)

  • Advertising (acrylic board, PVC, foam cutting)

  • DIY CNC machines for hobbyists and creators

  • Light metal processing for aluminum and brass plates

  • Education and training workshops for CNC practice

Why Choose a 2.2kW Air Cooled Spindle?

If you’re looking for a cost-effective, durable, and easy-to-use spindle for your CNC machine, this model is a solid choice. It’s powerful enough to handle tough jobs while staying cool without complicated systems. Plus, it’s widely supported by VFDs and compatible with most CNC kits.

Ready to Upgrade Your CNC Router?

The 2.2 kw air cooled spindle offers outstanding performance for a wide range of materials and applications. Whether you’re upgrading your CNC machine or building a new one, this spindle delivers a perfect mix of affordability and reliability.

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