ER11 65mm 0.8KW Round Water Cooled
110V/220V
10000-24000 RPM
3kg
Water Cooled
ER11
0.8KW
6A
Ф65mm*267mm
| Availability: | |
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CNC Router Machine Catalogue 2025.pdf
Are you searching for an efficient and reliable solution to power your CNC woodworking, engraving, milling, or DIY crafting projects? Zhong Hua Jiang ER11 0.8KW water cooled spindle motor is a compact, quiet, and high-precision spindle solution for small CNC routers and engraving machines.
This round water cooled CNC spindle motor is designed for hobbyists, students, makers, and small workshops that need stable cutting performance in a compact machine. With 0.8KW power, ER11 collet compatibility, 110V/220V voltage options, and 10000-24000 RPM speed range, it is suitable for engraving, carving, drilling, and light milling tasks.
Compared with air-cooled spindle motors, the water-cooling structure helps maintain lower operating temperature and quieter performance during long-duration CNC work. It is a practical upgrade for compact CNC router models such as 3018, 3020, 3040, and similar engraving machines.
Zhong Hua Jiang water cooled spindle motors are built with durable materials, precision bearings, and stable electrical components to support accurate machining on wood, acrylic, MDF, PVC, PCB, plastics, and soft metals such as aluminum, brass, and copper.


| Voltage | 110V/220V | 1 pcs 0.8KW Round Spindle Motor. |
| Speed | 10000-24000 RPM | 1 pcs Pre-soldered aviation wire for quick installation. |
| Power | 0.8KW | This spindle should be equipped with 400Hz VFD. |
| Electric Current | 6A | |
| Frequency | 400Hz | |
| Weight | 3KG | |
| Connection | ER11 | |
| Cooling | Water Cooled | |
| Usage | Engraving Machines |

The ER11 0.8KW water cooled CNC spindle motor is suitable for compact CNC engraving, routing, and light milling applications. It is commonly used for wood carving, acrylic sign making, MDF cutting, PCB engraving, PVC processing, plastic machining, and soft metal work.
Zhong Hua Jiang ER11 65mm 0.8KW Water Cooled Spindle Motor is designed for precise, quiet, and stable CNC engraving. It uses an ER11 collet system for secure tool holding, supports 10000-24000 RPM speed control, and works with a 400Hz VFD for smooth spindle operation.
The water-cooled structure provides efficient heat dissipation for continuous machining, helping reduce thermal expansion and maintain cutting accuracy. With upgraded bearings, low vibration, and compact round body design, this spindle is ideal for desktop CNC machines and small production workshops.
The ER11 0.8KW water cooled spindle motor supports VFD speed control, making spindle speed adjustment simple for different materials, tools, and machining conditions.
Equipped with an ER11 collet, the spindle provides secure tool clamping, lower runout, and consistent precision for engraving, carving, drilling, and light milling.
The spindle can be integrated with common CNC control systems and compact CNC router platforms, allowing stable operation across a 10000-24000 RPM speed range.
Supporting 110V/220V input options and 6A current, the spindle is built for stable electrical performance and dependable long-term CNC use.
With 400Hz VFD control, the spindle allows smooth speed regulation for different materials, helping improve surface finish and cutting consistency.
The water-cooling system helps dissipate heat efficiently, reduce noise, and support extended CNC operations. Its compact round body is suitable for small CNC routers requiring stable spindle performance.

Innovative dynamic balancing technology helps reduce vibration, lower operating noise, and improve stability during high-speed CNC machining.

The spindle uses upgraded steel bearings and an all-copper rotor coil to support longer service life. Under suitable cooling and correct VFD settings, it is designed for stable daily CNC operation.
| Our Spindle Motor | Other Spindle Motor |
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| Runout less than 0.005mm | Runout 0.05mm |
Further precision processing helps keep spindle runout less than 0.005mm, delivering up to 10 times better precision than ordinary spindle motors.
10 TIMES PRECISION RUNOUT OFF

Equipped with pre-soldered aviation wire and power wire, the spindle supports faster installation and easier connection to a compatible VFD system.
Whether you are a hobbyist or a professional CNC workshop, Zhong Hua Jiang provides water cooled spindle motor solutions for engraving, carving, cutting, and light milling. If the standard configuration does not meet your machine requirements, our sales and engineering team can help customize a suitable spindle motor solution.
Besides the Zhong Hua Jiang 0.8KW ER11 water cooled spindle motor, we offer 1.5KW, 2.2KW, and 3KW water cooled spindle motor models, plus matching spindle motor VFD kits for different CNC router sizes and production needs.


Huajiang was founded in 2000, starting in the production of CNC engraving spindle motors, then expanded production to VFD (Variable Frequency Drive) and engraving machines.
To explore and develop more market, we established the brand Zhong Hua Jiang in 2018.
We have a registered patent for our series of air cooling spindle motor. The patent No: 200730184245.5.
We have 20 years manufacturing experience in this field.
We have been exporting our products worldwide, including to well-known companies in the USA and Germany.

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Quality AssuranceSuperior quality performance Strict quality control | Patents and CertificationsSeveral patents for air-cooled spindle motors | Additional Brand ValueBrand value highly recognized by the market |
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Reasonable PriceDirect factory sales Highly cost performance | Full Time ServiceProfessional technical support Close and quick customer service | Fast and Reliable DeliveryFast and efficient delivery Real-time tracking and updates |
Our Zhong Hua Jiang CNC router machines, including models like 3018, 3020, 3040, and 6090, are designed for precision engraving and cutting projects.
Power your CNC projects with air-cooled and water-cooled spindle motors designed for stable machining across diverse materials.
Enhance CNC operation with limit switches, Z probes, emergency stop buttons, and other precision accessories.
Double-shielded cables and shielded chain cables help reduce signal interference and improve connection reliability.
High-performance stepper motors provide precise motion control and robust operation for CNC machines.


It works well with wood, acrylic, MDF, plastics, PCB boards, PVC, plexiglass, and soft metals such as aluminum, brass, and copper. For soft metals, correct feed rate, tool selection, cooling, and VFD settings are important.
Yes. This spindle should be used with a compatible 400Hz VFD. The VFD controls spindle speed, start/stop behavior, and stable operation across the 10000-24000 RPM range.
A water pump, water tube, water tank, or closed-loop chiller is typically required. Stable coolant circulation helps prevent overheating and supports long-duration CNC machining.
Yes. Zhong Hua Jiang has over 20 years of R&D and manufacturing experience, and we welcome global distributors, resellers, and wholesalers. We offer factory-direct pricing, stable supply, and export support.
Yes. We provide OEM and ODM services for logo, packaging, voltage specification, collet type, cable configuration, and bearing configuration according to project needs.
We are flexible with order quantities. For standard products such as the ER11 65mm 0.8KW Water Cooled CNC Spindle Motor, small trial orders are accepted before bulk purchase. OEM orders can be discussed based on project details.
For standard kits, typical lead time is 3-7 working days after payment. For large or customized orders, production usually takes 10-20 days, depending on quantity and customization requirements.
All spindle motors, power converters, and accessories are covered by a 12-month warranty. Each product is inspected before shipping, and we provide technical support and replacement for quality-related parts during the warranty period.
Yes. Zhong Hua Jiang offers lifetime technical support by email, video call, or online chat. Our engineers can assist with installation, VFD parameter setup, cooling system guidance, and troubleshooting.
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