ER20 80mm 2.2KW Round Air Cooled
110V/220V/380V
10000-24000 RPM
5.5KG
Air cooled
ER20
2.2KW
8.5A
Ф80mm*308mm
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The Zhong Hua Jiang ER20 2.2kW Ø80mm round air-cooled spindle motor is intended for CNC router manufacturers, equipment distributors and professional workshops. The motor is sold separately from the VFD and is designed for 400Hz spindle operation.
Request a Quote for the 2.2kW ER20 Spindle
For new router builds or replacement projects, verify the mounting diameter, 110V/220V/380V motor variant, ER20 collet size, VFD rating and required spindle clearance before ordering.
The ER20 collet interface, 2.2kW rating, 400Hz operating frequency and 10,000–24,000 RPM range make this spindle suitable for wood, MDF, acrylic, PVC and other plastics. Light-duty aluminum or brass machining depends on the machine, cutter, feed rate and workholding.

CNC Router Machine Catalogue 2025.pdf
The Zhong Hua Jiang ER20 2.2KW air cooled spindle motor is built for buyers who need a practical balance of power, precision, cooling efficiency, and easy installation. It is a suitable spindle choice for CNC router upgrades, replacement spindle projects, small production workshops, CNC machine assembly, and spare-parts distribution.
Request Factory-Direct Spindle Pricing
The air-cooled design operates without a water pump, reservoir or coolant circulation plumbing. Allow sufficient airflow around the spindle and select the correct VFD, mount and electrical connections for the machine.
For wholesalers and OEM machine builders, Zhong Hua Jiang can discuss motor voltage variants, volume quotations, packaging, identification labels and replacement-spindle sourcing.

| Voltage | 110V / 220V / 380V variants | Select one rated motor voltage and confirm VFD input/output compatibility. |
| Speed | 10,000–24,000 RPM | Use a compatible VFD and suitable tooling for the application. |
| Power | 2.2kW | Motor-only product; a compatible 400Hz VFD is required and is not listed in the motor package. |
| Electric Current | 8.5A (listed rating) | Verify the rated motor nameplate for your ordered voltage configuration. |
| Frequency | 400Hz | Check the VFD rated output and spindle operating parameters before use. |
| Weight | Approx. 5.5kg | Confirm shipping weight for the selected motor configuration. |
| Connection | ER20 collet interface | Confirm the required ER20 collet and tool-shank diameter for your job. |
| Cooling | Air-cooled | Keep ventilation paths clear; no water pump or cooling circuit is required. |
| Usage | CNC routers and engraving machines | Wood, MDF, acrylic, PVC, plastic, and suitable light-duty nonferrous work. |
| Spindle size | Ø80 × 308mm | Confirm the full spindle drawing and clamp clearance before installation. |
Confirm Voltage, Dimensions and Availability
Purchase note: This page describes the round Ø80mm spindle motor only. The 400Hz VFD, Ø80mm mount and additional ER20 collets should not be assumed included unless they are specified in your quotation. Confirm the physical size and selected voltage option before purchasing.

This 2.2KW ER20 spindle motor is suitable for CNC users who process wood, acrylic, MDF, PVC, PCB materials, plastics, plexiglass, and soft metals such as aluminum or brass. It is commonly used in CNC router machines, engraving machines, woodworking equipment, sign-making machines, small production lines, and maintenance or retrofit projects.
Discuss Your CNC Router Application
The 2.2kW round spindle combines an ER20 collet interface, a Ø80mm mounting body and air cooling. With a correctly matched VFD and suitable tool, it can support CNC routing, engraving and light milling across a range of nonferrous materials.
Request ER20 2.2kW Spindle Specifications
The spindle motor is designed for easy VFD speed control and practical daily operation. With a compatible 400Hz VFD, users can adjust spindle speed according to material type, tool size, and machining requirements.
The ER20 collet connection provides secure tool holding and supports larger tools than compact ER11 spindle models. This improves versatility for engraving, cutting, and light milling applications.
The motor requires an appropriately rated VFD with a 400Hz output capability. CNC controller interfaces depend on the chosen VFD and controller wiring; check the control signal and motor parameters before commissioning.
The product is listed in 110V, 220V and 380V motor versions, with a published 8.5A current rating and 400Hz operating frequency. These are separate voltage configurations rather than one universal-voltage motor. Match the selected motor nameplate to the VFD output.
The spindle supports a speed range of 10,000–24,000 RPM, helping users choose suitable cutting conditions for wood, acrylic, plastic, PCB, and soft metal materials.
Air cooling removes the need for a separate water pump and circulating coolant system. The spindle dimensions are Ø80 × 308mm and the listed weight is approximately 5.5kg; confirm mounting clearance and airflow for your router.

Advanced dynamic balancing technology helps reduce vibration during high-speed operation, lowers operating noise, and improves machining stability during engraving, cutting, and milling.

The spindle uses four upgraded steel bearings and an all-copper rotor coil design to support stable electrical performance and longer service life under regular CNC workshop use.
| Our Spindle Motor | Other Spindle Motor |
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| Illustrated runout: <0.005mm | Illustrated comparison: 0.05mm |
Runout figures in the images are illustrative measurements, not an unconditional performance guarantee for every unit or cutting tool. Ask for the measurement method, collet information and test documentation for precision-critical OEM projects.
The comparison illustration highlights a runout measurement below 0.005mm for one example. Actual assembled tool runout depends on the spindle, ER20 collet, tool, measurement position and operating condition. Ask for inspection results if your application has a specified tolerance.
Compare Runout Measurements Under the Same Test Conditions

The listed pre-soldered aviation cable supports motor wiring. To install the spindle, machine builders should confirm the Ø80mm mounting bore, clamp rigidity, connector pinout, grounding and VFD parameter setup.
Motor and VFD matching: Confirm the actual motor voltage, 8.5A nameplate rating, 400Hz output frequency, required spindle start/stop interface and motor control parameters. The correct 110V, 220V or 380V configuration depends on the machine electrical system.
Physical compatibility: Check the Ø80mm spindle body and 308mm length against the spindle clamp, Z-axis travel, tool clearance and machine frame. Confirm whether an existing mount and cable connector can be reused.
Tool holding: Select the ER20 collet that matches the cutter shank. Inspect collet cleanliness, locking-nut condition and tool runout; avoid applying collet clamping force to undersized shanks.
Airflow and materials: Keep the spindle ventilation passages clear of dust and chips. Verify cutting parameters for wood, plastic, acrylic and light-duty soft metal machining rather than assuming the same setup for every material.
Discuss VFD Matching and OEM Requirements
| 1x | 1 × ER20 2.2kW Ø80mm round air-cooled spindle motor |
| 1x | 1 × pre-soldered aviation cable, as shown in the listed motor package |
| Note | A compatible 400Hz VFD is needed for operation but is not included in this motor-only package. |
Distributors, CNC machine builders and professional workshops can request quotations for selected voltage versions, replacement motors, export packing and OEM procurement. Confirm the current order quantity, production schedule and accessories with the sales team.
Confirm Package Contents and MOQ
Besides the Zhong Hua Jiang 2.2KW ER20 80mm air cooled spindle motor, we offer a complete air cooled spindle motor range for different CNC machine sizes, tool requirements, and production workloads. This helps distributors and machine builders select suitable models for compact engraving machines, standard CNC routers, and higher-power industrial applications.
Round Air Cooled Spindle Motor Kits
Square Air Cooled Spindle Motor Kits

Huajiang was founded in 2000 , starting with the production of CNC engraving spindle motors, and later expanding into VFDs, CNC router machines, and related CNC accessories.
To develop international markets and serve global CNC users, we established the Zhong Hua Jiang brand in 2018.
We hold registered patents for our air cooled spindle motor series, including patent No. 200730184245.5 .
With more than 20 years of manufacturing experience, Zhong Hua Jiang supports global buyers with stable product quality, technical support, and export service.
Our products are exported worldwide, including customers in the United States, Germany, and other industrial markets.

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Quality AssuranceStable product quality and reliable spindle performance. Strict inspection before shipment. | Patents and CertificationsPatented air-cooled spindle motor designs. CNC spindle motor manufacturing know-how. | Additional Brand ValueRecognized Zhong Hua Jiang brand value. Trusted by users in global markets. |
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Reasonable PriceDirect factory supply for competitive pricing. High cost-performance ratio for B2B procurement. | Responsive Technical SupportProfessional technical support. Fast response for pre-sales and after-sales questions. | Fast and Reliable DeliveryEfficient delivery for standard spindle motors. Order tracking and export shipping support. |
LEADING CNC MACHINE / CNC SPINDLE MOTOR MANUFACTURER SINCE 2000
Our Zhong Hua Jiang CNC router machines, including models such as 3018, 3020, 3040, and 6090, are designed for precision engraving, cutting, and small production applications.
We supply air cooled and water cooled CNC spindle motors for different power ranges, machine structures, materials, and machining requirements.
Our CNC accessories include limit switches, Z probes, emergency stop buttons, and other components that improve CNC machine safety, accuracy, and user convenience.
We provide double-shielded cables and shielded chain cables to support reliable connections, reduce signal interference, and improve CNC system durability.
Our stepper motors help CNC machines achieve precise motion control and stable operation for engraving, cutting, and automation applications.


The motor is commonly used for CNC engraving or routing wood, MDF, acrylic, PVC, plastics and suitable PCB materials. Light-duty aluminum or brass work requires suitable tooling, machine rigidity and correctly chosen feeds and speeds.
Yes. CNC router manufacturers, equipment distributors, spare-parts resellers and repair workshops can request bulk quotations. Specify the required voltage, quantity, ER20 tooling requirements and delivery market.
Branding, packing and configuration requests can be discussed for OEM or distributor orders. Engineering approval is required before changes to voltage, connectors, bearings or mounting features.
MOQ depends on the voltage option, standard or custom specification and packaging. Contact sales with your target quantity for a quotation.
The published reference is 3–7 working days for standard products and 10–20 days for large/custom orders; actual production, availability and shipping dates are confirmed with the sales quotation.
The stated warranty period is 12 months. Confirm the applicable warranty coverage, usage requirements and claims procedure in the purchase documentation.
Zhong Hua Jiang supports inquiries about mounting, VFD matching, electrical connections, spindle settings and technical troubleshooting. Distributor service arrangements can be discussed.
No. This motor-only listing shows the spindle motor and an aviation cable. A compatible 400Hz VFD must be selected separately or ordered as part of a different kit.
The listed dimensions are Ø80mm × 308mm, with a weight of approximately 5.5kg. Confirm final measurements using the product drawing for the particular variant.
The stated operating frequency is 400Hz. Use a correctly configured VFD rather than connecting the high-frequency spindle directly to mains power.
The listing shows 110V, 220V and 380V motor variants. They are separate configurations; specify one version for your machine and check compatibility with the VFD output.
The listed range is 10,000–24,000 RPM. Safe operating conditions depend on the selected motor, VFD settings and tool manufacturer recommendations.
ER20 identifies the tool-holding collet series. Select the exact collet bore to match your cutter shank and confirm the tool size before machining.
It may be suitable where the Ø80mm body, overall length, power, voltage and wiring match the existing machine. Check clearance and the connector before retrofitting.
Only the motor and pre-soldered aviation cable are explicitly listed in the motor-only packing table. Confirm any clamp, collet set, wrench or additional cable separately.
The motor uses air cooling, so it does not require a water tank, pump or coolant circulation circuit. Maintain adequate ventilation and protect openings from dust buildup.
Light-duty nonferrous engraving or milling may be possible with correct cutters and feeds, but results depend strongly on machine rigidity, tool reach, chip removal and cutting parameters.
Provide the machine supply voltage, required motor voltage, compatible VFD output range, control interface, wiring arrangement and expected duty cycle.
Runout is checked with suitable gauges at a defined measurement location and with a specified collet/tool setup. Ask for the test method and unit-specific report if tolerances are critical.
Speed control is supplied through a compatible VFD. Whether the controller can command the VFD depends on the controller output, VFD input and wiring configuration.
Verify voltage mix, Ø80mm body dimensions, ER20 collet requirements, label/packaging needs, replacement parts, minimum quantities and expected shipping schedule.
Zhong Hua Jiang accepts OEM and bulk-supply inquiries. Share machine drawings, electrical requirements, quantity, destination and accessory needs to discuss a suitable supply configuration.
Get a Wholesale Quote for the ER20 2.2kW Motor
Contact Zhong Hua Jiang for the required motor voltage, order quantity, VFD compatibility, ER20 tooling requirements, export destination and OEM supply details. The sales team can confirm the current specification and packaging for your order.
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