ER20 3KW 100mm 4 Bearings 220V/380V Quiet Water Cooled CNC Spindle Motor for CNC Router Engraving Machine

 3KW ER20 Water Cooled Spindle Motor Video

 Zhong Hua Jiang CNC Catalogue PDF Download

  CNC Router Machine Catalogue 2025.pdf

 ER20 3KW Water Cooled Spindle Motor for Sale

The Zhong Hua Jiang ER20 100mm 3KW water cooled spindle motor is designed for CNC router engraving, milling and cutting applications that require stable torque, low noise and high precision. It supports 220V/380V input options, 400Hz operation, 10A current and a 10,000–24,000 RPM speed range when matched with a suitable VFD.

This Φ100mm round CNC spindle motor uses an ER20 collet interface for secure tool holding and broad cutter compatibility. The water-cooled structure helps control temperature during long machining cycles, making it suitable for woodworking, acrylic cutting, plastics, PCB engraving and light soft-metal machining.

For B2B buyers, OEM users, machine builders and distributors, this 3KW water cooled spindle motor provides a practical balance of cutting capacity, precision, service life and factory-direct supply support.

 Technical Specifications of ER20 3KW Water Cooled Spindle Motor

Key specifications include 3KW rated power, ER20 collet connection, Φ100mm round body, 220V/380V voltage options, 10A current, 400Hz frequency, 10,000–24,000 RPM speed range, water cooling, 8.8KG weight and required 400Hz VFD speed control.

 Applications & Use Cases for CNC Routers

Wood CNC Machining

Acrylic CNC Machining

Soft Metals CNC Machining

 Features of ER20 3KW Water Cooled CNC Spindle Motor

Zhong Hua Jiang ER20 100mm 3KW Water-Cooled Spindle Motor features an intelligent control system and is designed for simple, user-friendly operation, suitable for users of all skill levels.

This is a Φ100mm round water-cooled spindle motor with ER20 collet chuck. It delivers 3KW of power, supports 10000–24,000 RPM speed range, and achieves runout less than 0.005mm. Equipped with four upgraded high-precision steel bearings for up to 3× longer lifespan than standard models, it incorporates advanced dynamic balancing technology for minimal noise and vibration.

The water-cooled design provides excellent heat dissipation, significantly lower operating temperatures, and much quieter performance, making it ideal for long-duration, high-precision engraving and cutting. 

Key Features of the ER20 3KW Water Cooled Spindle Motor

User-Friendly VFD Control

Zhong Hua Jiang ER20 3KW quiet water cooled Spindle Motor features an intelligent control system, designed for ease of operation, making it accessible for users of all skill levels.

High-Precision ER20 Collet System

Equipped with an ER20 collet, ensuring secure tool holding, minimal runout, and precise machining for consistent results.

VFD / PLC Speed Control Compatibility

Integrated with program logic controller (PLC) compatibility, allowing easy adjustments for speed (10,000–24,000 RPM) and other parameters to suit various project needs.

Reliable Electrical Components

All electrical components, supporting 220V/380V and 10A current, are branded for stability and reliability, ensuring long-lasting performance.

Accurate 10,000–24,000 RPM Speed Regulation

Features precise speed control with a range of 10,000–24,000 RPM, enabling smooth and accurate operation for diverse CNC applications.

Optimized Φ100mm Water-Cooling Design

The specially designed water-cooling system for the Φ100mm spindle body ensures efficient heat dissipation with reduced noise, enhancing durability and performance for extended CNC operations.

 Advantages of 3KW Water Cooled Spindle Motor

Advanced Dynamic Balance Design

Innovative & advanced dynamic balancing technology

Effectively reduce the noise

Increase stability in the working process

Extended Working Life

Authentic 4pcs upgraded

Superior durability steel bearings

All copper lengthening coil of rotor

Working life can reach 2 years for 8 hours / day

Our Spindle Motor	Other Spindle Motor
Runout less than 0.005mm	Runout 0.05mm

High Accuracy & Concentricity

Further processing for spindle motor

Runout of the spindle motor is less than 0.005mm

10 times precision beyond normal spindle motor

 10 TIMES PRECISION RUNOUT OFF 

Easy and Fast Installation

Equipped with pre-soldered aviation wire and power wire for quick installation

 Package of ER20 3KW Water Cooled Spindle Motor

Whether you're a hobbyist or a professional CNC workshop, we have the ideal Zhong Hua Jiang water cooled spindle motor solution for you. Our water cooled spindle motors support a wide range of projects, from intricate engravings to heavy-duty cuts, suitable for various skill levels. If the standard configuration doesn't meet your needs, please feel free to contact our professional sales team to customize the perfect water cooled spindle motor solution for your projects.

 Recommended Water Cooled Spindle Motor Models

Besides the Zhong Hua Jiang 3KW ER20 water cooled spindle motor, we offer a variety of other water cooled spindle motor models to suit diverse CNC project needs. Our lineup includes the 0.8KW water cooled spindle motor for compact precision tasks, the 1.5KW water cooled spindle motor for high-performance engraving and cutting on wood, acrylic, and soft metals, the 2.2KW water cooled spindle motor for professional projects, and specialized air-cooled spindle options for enhanced versatility.

ER11 0.8KW Water Cooled Spindle Motor

ER11 1.5KW Water Cooled Spindle Motor

ER20 2.2KW Water Cooled Spindle Motor

ER11 1.5KW Water Cooled Spindle Motor Kits

ER20 2.2KW Water Cooled Spindle Motor Kits

ER20 3KW Water Cooled Spindle Motor Kits

 Company Profile: CNC Spindle Motor Manufacturer

CNC Spindle Motor Manufacturer Since 2000

 Why Choose Zhong Hua Jiang

Quality Assurance Superior quality performance Strict quality control	Patents and Certifications Several patents for air-cooled spindle motors	Additional Brand Value Brand value highly recognized by the market
Reasonable Price Direct factory sales Highly cost performance	Full Time Service Professional technical support Close and quick customer service	Fast and Reliable Delivery Fast and efficient delivery Real-time tracking and updates

LEADING CNC MACHINE/CNC SPINDLE MOTOR

MANUFACTURER SINCE 2000

 Our CNC Product Range

CNC Router Machines

Our state-of-the-art Zhong Hua Jiang CNC router machines, including models like the 3018, 3020, 3040, and 6090, guarantee precision, efficiency, and reliability, essential for high-quality engraving and cutting projects.

CNC Spindle Motors

Power your CNC projects with our advanced spindle motors, including air-cooled and water-cooled options, designed to meet rigorous performance standards for diverse materials.

CNC Accessories

Enhance your CNC operations with our precision accessories, such as limit switches, Z probes, and emergency stop buttons, perfect for ensuring safety and accuracy.

Electrical Wires

Ensure reliable and safe connections with our double-shielded cables and shielded chain cables, designed to minimize signal interference and enhance durability.

Stepper Motors

Drive your CNC machine with our high-performance stepper motors, offering precise control and robust operation for consistent project outcomes.

 Product Certification

 Customer Feedback

 FAQ: ER20 3KW Water Cooled Spindle Motor

1. What is the ER20 3KW water cooled spindle motor used for?

It is used on CNC routers and engraving machines for wood, MDF, acrylic, plastics, PCB boards and light soft metals. The 3KW power, ER20 collet and 10,000–24,000 RPM speed range make it suitable for high-speed engraving, cutting and milling tasks.

2. What VFD should be used with this 3KW CNC spindle motor?

This spindle motor should be used with a compatible 400Hz VFD. Correct VFD parameter setup is important for speed control, motor protection and stable long-term operation.

3. What are the main specifications of this spindle motor?

The main specifications are 3KW power, ER20 connection, Φ100mm round body, 220V/380V voltage options, 10A current, 400Hz frequency, 10,000–24,000 RPM speed range, water cooling and 8.8KG weight.

4. Why choose a water cooled spindle instead of an air cooled spindle?

A water cooled spindle provides stronger heat dissipation and lower operating noise during long machining cycles. It is a good choice for workshops that need stable continuous cutting, fine engraving and cleaner acoustic performance.

5. Can this ER20 3KW spindle motor cut aluminum or brass?

Yes, it can process soft metals such as aluminum and brass when paired with the correct cutter, feed rate, spindle speed, cooling method and CNC machine rigidity. For heavy metal cutting, confirm the full machine configuration before ordering.

6. Do you support OEM, ODM and bulk orders?

Yes. Zhong Hua Jiang supports OEM branding, distributor supply, bulk purchasing and customized spindle motor solutions. Voltage, packaging, accessories and spindle configurations can be discussed according to project requirements.

7. What is included in the package?

The standard package includes one 3KW round water cooled spindle motor and one pre-soldered aviation wire for quick installation. The spindle should be matched with a suitable 400Hz VFD.

8. What warranty and technical support are available?

Zhong Hua Jiang provides a 12-month warranty for spindle motors and related products, plus technical support for installation, VFD parameter setup and troubleshooting.