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 80mm round air-cooled CNC spindle motor kit combines an ER20 spindle with a 2.2kW variable frequency drive (VFD) and the mounting and wiring accessories listed below. It is designed for CNC router manufacturers, machine builders, workshop operators, equipment distributors and replacement-spindle buyers.
Select the appropriate voltage configuration for the destination market, then verify VFD input and output ratings, spindle dimensions, machine mounting and available tool-shank sizes. Zhong Hua Jiang accepts inquiries for kit configurations, distributor supply and OEM requirements.
Request ER20 2.2kW VFD Kit Pricing
Quick B2B Purchase Summary
Product: ER20 2.2KW Air Cooled CNC Spindle Motor Kit with VFD
Typical buyers: CNC router factories, equipment distributors, maintenance suppliers, engraving machine builders, and industrial workshops
Main applications: Woodworking, acrylic engraving, MDF cutting, PVC machining, PCB engraving, and light-duty soft metal processing
CNC applications differ in workpiece material, cutter diameter, spindle duty, mounting space and electrical supply. Confirm the machine configuration and select a compatible VFD setup before operating the 2.2kW ER20 spindle.

CNC Router Machine Catalogue 2025.pdf
This 2.2kW ER20 round CNC spindle kit combines a high-frequency motor with VFD speed control, an Ø80mm mounting interface and air cooling. It is intended for woodworking, MDF routing, acrylic machining, suitable plastics and selected light-duty nonferrous-metal applications.
The motor is listed in 110V, 220V and 380V versions, with a 10,000–24,000 RPM published speed range, 400Hz rated frequency and 8.5A listed current. These are selectable configurations, not a claim that one motor or VFD accepts every supply voltage.
The air-cooled motor does not require a separate water pump, coolant tank or water lines. Allow ventilation around the spindle and keep air passages clear of machining dust. Compare duty cycle, workspace environment, machine rigidity and material requirements when choosing between air-cooled and water-cooled systems.
Ask About ER20 Spindle and VFD Specifications

| Product type | 80mm round air-cooled CNC spindle motor kit with VFD |
| Rated spindle output | 2.2kW |
| Collet interface | ER20 |
| Published voltage versions | 110V / 220V / 380V — select compatible motor and VFD |
| Speed range | 10,000–24,000 RPM |
| Rated frequency | 400Hz |
| Published current | 8.5A |
| Spindle housing diameter | Ø80mm |
| Spindle size (product overview) | Ø80 × 308mm |
| Spindle weight (product overview) | 5.5kg |
| Cooling method | Air-cooled |
| VFD | 2.2kW unit listed in kit; input/output ratings depend on selected version |
The listed 5.5kg weight and Ø80 × 308mm size are from the product overview. Confirm the exact motor nameplate, overall dimensions and VFD compatibility for the selected configuration before placing a production order.
| 1x | Φ80mm 2.2KW ER20 Round Air Cooled Spindle Motor |
| 1x | 2.2KW VFD Inverter |
| 1x | Φ80mm Clamp Mount |
| 13x | ER20 Collets |
| 10x | Drill Bits (0.8-3mm, 1/8" Shank) |
| 1x | Aviation Wire |
| 1x | Power Wire |
| 2x | Wrenches |
| Spindle Motor: Ø80mm round ER20 series — confirm exact length before ordering | |
| Spindle Weight: 5.5kg (product overview; confirm exact ordered configuration) | |

Product illustrations may show alternative spindle configurations. For an exact replacement, request a dimensioned drawing and confirm the ER20 collet, 80mm housing, motor length and mounting accessories.
The ER20 2.2kW spindle kit is intended for compatible CNC routers, engraving machines, signage workshops, woodworking equipment and machine maintenance. Cutting feasibility depends on the machine frame, cutter, workholding, programmed feeds and operating conditions.
The ER20 2.2KW air cooled spindle motor kit is designed for users who need efficient cooling, reliable tool holding, smooth speed regulation, and stable machining performance. It is suitable for new CNC machine assembly, spindle replacement, and distributor stock programs.
The 2.2kW VFD provides speed control when correctly matched to the ordered motor. Before installation, check rated voltage, motor current, maximum frequency, acceleration/deceleration parameters, grounding and any CNC-controller start/stop wiring.
The ER20 collet interface supports interchangeable ER20 collets for compatible tool-shank diameters. The packing list identifies 13 ER20 collets; confirm their individual sizes and the supplied nut before purchase. ER20 and ER16 collets are not interchangeable.
The product is offered with 110V, 220V and 380V voltage configurations. Motor voltage, VFD supply input, VFD output and nameplate current must all match. Confirm the exact input supply and any single-phase or three-phase requirements in the quotation.
Confirm the Right Voltage and VFD
The fan-cooled design transfers heat to surrounding air without a separate water-cooling loop. Maintain airflow clearance and remove dust accumulation when operating the spindle in woodworking or plastics-processing environments.

The motor design incorporates balancing considerations to support high-speed operation. Actual vibration and machining finish depend on cutter balance, collet condition, spindle bearings, mounting rigidity and feed settings.

The manufacturer describes upgraded bearings and copper windings for the spindle series. Actual service life is affected by loading, cooling, operating speed, installation and maintenance; request the exact bearing configuration for the selected model if required.
Discuss Spindle Application Requirements
| Our Spindle Motor | Other Spindle Motor |
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| Runout of less than 0.005mm | Runout of 0.05mm |
The illustrated comparison refers to runout below 0.005mm for the manufacturer example and 0.05mm for a comparison motor. Actual spindle or assembled-tool runout varies with measurement position, collet, tool shank and method. Ask for inspection data and an agreed tolerance if precision is critical.
Spindle runout is evaluated according to the agreed inspection method.

The listed aviation wire and power wire support installation of the spindle kit. The VFD must be checked and configured to match the ordered motor before operation; do not assume all VFD settings are universally preloaded for every voltage variant.
Request a Detailed Kit Packing List
Verify the supplied VFD parameter settings before first use.
Distributors, machine manufacturers and professional workshops can request a quotation for the 2.2kW round ER20 kit. Specify voltage, quantity, installation dimensions, destination and any needed documentation or kit modifications.
Get a Bulk Spindle Kit Quotation
Other Zhong Hua Jiang spindle kits include ER11 lower-power models, ER20 3kW options and square-body spindle configurations. Compare power, tool-holding interface, cooling design and mounting dimensions rather than selecting by nominal wattage alone.
More round spindle motor options are available for distributor and OEM orders.


Huajiang was founded in 2000, starting with the production of CNC engraving spindle motors and later expanding to VFD inverters, CNC router machines, and related accessories.
To develop broader international markets, we established the Zhong Hua Jiang brand in 2018. Today, we serve CNC machine users, distributors, and industrial buyers in global markets.
We have 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 stable production, quality inspection, and export supply for CNC spindle motor products.
Contact the Zhong Hua Jiang Factory

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Quality AssuranceStable product quality and reliable spindle performance. Strict inspection before shipment. | Patents and Manufacturing ExperiencePatented air cooled spindle motor designs. More than 20 years of CNC spindle motor know-how. | Brand ValueRecognized Zhong Hua Jiang brand value. Trusted by CNC users in global markets. |
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Factory-Direct PriceDirect supply for competitive pricing. High cost-performance ratio for B2B procurement. | Technical SupportProfessional pre-sales and after-sales support. Fast response for installation and parameter questions. | Reliable DeliveryEfficient delivery for standard spindle motor kits. Order tracking and export shipping support. |
Zhong Hua Jiang CNC router machines, including models such as 3018, 3020, 3040, and 6090, are designed for precision engraving, cutting, routing, and small production applications.
We supply air cooled and water cooled CNC spindle motors for different power levels, machining materials, and installation requirements.
Our accessories include limit switches, Z probes, emergency stop buttons, cables, and other CNC components for safer and more accurate machine operation.
Double-shielded cables and shielded chain cables help reduce signal interference and improve connection reliability in CNC equipment.
High-performance stepper motors provide precise movement control for CNC routers, engraving machines, and related automation systems.


Check that the CNC machine has a suitable Ø80mm clamp and enough Z-axis travel and headroom for the supplied motor. Compare the final dimensioned spindle drawing with the machine’s existing mounting interface.
Choose the ordered 110V, 220V or 380V motor version and confirm the VFD input supply, rated output, current capacity, grounding and wiring before delivery. Never connect this high-frequency spindle directly to an ordinary mains outlet.
Specify cutter-shank diameters and required collet sizes when purchasing in volume. Verify the 13 supplied ER20 collets, compatible nut, maximum tool diameter and tool overhang against the required application.
The published kit includes one Ø80mm ER20 spindle, one 2.2kW VFD, an Ø80mm clamp, 13 ER20 collets, 10 drill bits, aviation wire, power wire and two wrenches. Ask for a configuration-specific packing list before ordering.
Request ER20 Kit Compatibility and Bulk Pricing
It is suitable for engraving, routing, milling, and cutting wood, acrylic, MDF, plastics, PCB boards, PVC, plexiglass, and soft metals such as aluminum or brass, depending on tool selection and machining parameters.
The kit includes a 2.2KW ER20 air cooled spindle motor, matched VFD inverter, clamp mount, ER20 collets, drill bits, aviation wire, power wire, and wrenches for easier installation and setup.
Zhong Hua Jiang welcomes inquiries from global distributors, wholesalers, machine builders and replacement-parts suppliers. Please provide target quantity, voltage, destination market and any specific documentation or packaging needs for a quotation.
OEM and ODM options may include labeling, packaging, voltage selection, cables and kit composition. Submit the requested configuration for a feasibility assessment and a written itemized quotation.
Small trial orders and bulk quantities are discussed in the published product information. Confirm the current minimum order quantity for the specific voltage version, stock status and any customization.
Published guidance indicates a typical 3–7 working days after payment for standard kits. Actual production and dispatch dates depend on configuration, quantity and availability and should be confirmed in the sales quotation.
The published product information describes a 12-month warranty. Request the current written warranty terms, coverage and exclusions for the spindle, VFD and accessories before ordering.
The supplier describes technical support for installation, VFD setup and troubleshooting. When contacting the team, include the motor nameplate, VFD model, wiring diagram and fault details where applicable.
This kit uses an Ø80mm round air-cooled spindle. A square-body ER20 spindle is a different product and uses different mounting geometry.
The published kit lists an Ø80mm round spindle and matching Ø80mm clamp. Verify fit, clamp style and motor clearance against your machine before purchasing.
The manufacturer lists 10,000–24,000 RPM. Actual commanded speed depends on correct VFD settings and operating limitations; check cutter speed ratings and machining conditions.
The product listing specifies 400Hz and 8.5A. Program the VFD according to the delivered motor nameplate and the drive manual.
The product listing shows 110V, 220V and 380V options. These are ordering variants; verify the motor rating and compatible VFD input and output before connecting power.
The product overview lists Ø80 × 308mm and 5.5kg. Request a dimensional drawing and confirm the weight of the chosen configuration in your quotation.
Yes. The original kit packing table lists one 2.2kW VFD inverter and one Ø80mm clamp mount in addition to the motor and accessories.
The listed package contains 13 ER20 collets and 10 drill bits described as 0.8–3mm with 1/8-inch shanks. Confirm the individual collet sizes and tool selection for your order.
Integration may be possible through a compatible VFD control input if the controller supports the required speed and run/stop interface. Confirm signals, isolation and wiring with the controller and drive documentation.
Selected light-duty nonferrous-metal milling or engraving may be feasible on a sufficiently rigid CNC machine with suitable tools, fixturing, feeds and chip removal. It is not a blanket claim of heavy-duty metal cutting capability.
No separate water pump or water lines are needed for the air-cooled design. The motor still needs adequate air circulation and dust management.
A drive may arrive with settings, but buyers should verify rated voltage, current, frequency, acceleration limits and control inputs against the delivered spindle before operation.
Agree on the measurement location, reference collet or test bar, inspection method and tolerance. Promotional comparison images do not substitute for batch-specific inspection evidence.
Provide quantity, delivery country, motor voltage, available power supply, desired VFD interface, application materials, collet sizes, packaging needs and any inspection or documentation requests.
Request a Wholesale Quote for the ER20 2.2kW Kit
Contact Zhong Hua Jiang for factory-direct pricing, bulk order support, distributor cooperation, OEM packaging, and technical configuration advice.
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