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ER20 2.2KW Square Air Cooled
110V/220V
10000-24000 RPM
8kg
Air Cooled
ER20
2.2KW
8.6A
280X117X132mm
The Zhong Hua Jiang ER20 2.2kW square air-cooled CNC spindle motor is designed for CNC router builders, professional workshops, maintenance suppliers and equipment distributors. Its square mounting housing, ER20 collet interface and 400Hz VFD operation make it suitable for CNC engraving, profiling, routing and appropriate light milling.
This product is a standalone spindle motor, not a motor-and-VFD kit. The published model offers 110V and 220V configurations, a 10,000–24,000 RPM operating range and an ER20 collet system. Specify the required voltage, mating VFD and mounting drawing when requesting a quotation.
Request ER20 2.2kW Square Spindle Motor Pricing
The video introduces Zhong Hua Jiang air-cooled spindle equipment. Confirm the delivered spindle dimensions, ER20 collet configuration and mounting arrangement before retrofitting an existing CNC machine.
CNC Router Machine Catalogue 2025.pdf
The square-bodied spindle is suited to equipment that accepts its flat-sided mounting layout. Compared with a round clamp arrangement, the mounting-hole positions and installation clearances must be checked against the machine structure; the two mounting types are not directly interchangeable.
The ER20 tool-holding interface allows compatible collets to be selected for different cutter shank sizes. Applicable work includes wood and MDF routing, acrylic and selected plastic processing, signage, panel profiling and controlled light-duty machining of suitable nonferrous materials.
A compatible VFD provides spindle speed control. Motor output voltage, current, 400Hz frequency, acceleration and protective parameters must be matched to the exact motor nameplate by a qualified installer.
Ask for Square ER20 Motor Details and OEM Pricing
| Specification | Published product details |
|---|---|
| Product type | Square air-cooled CNC spindle motor (motor only) |
| Brand | Zhong Hua Jiang |
| Model | ER20 2.2kW Square Air Cooled |
| Rated power | 2.2kW |
| Voltage options | 110V / 220V configurations |
| Operating speed | 10,000–24,000 RPM |
| Frequency | 400Hz |
| Rated current | 8.6A (published model summary; verify nameplate) |
| Collet interface | ER20 |
| Cooling | Air cooled |
| Overall dimensions | 280 × 117 × 132mm (published model summary) |
| Published weight | 8kg (verify variant and shipment details) |
| VFD | Compatible 400Hz VFD required; not included in the motor-only packing list |
For machine integration, confirm the exact motor nameplate, electrical version, mounting-hole pattern and clearance dimensions before procurement. A motor supplied under a different configuration may have different mechanical or electrical data.
| Voltage | 110V/220V | 1 pc 2.2kW square spindle motor (motor-only supply) |
| Speed | 10,000–24,000 RPM | The technical packing reference mentions one aviation cable and two wrenches; confirm final accessories. |
| Power | 2.2KW | Compatible 400Hz VFD is required separately |
| Electric Current | 8.6A (published model summary) | |
| Frequency | 400Hz | |
| Weight | 8kg (published model summary) | |
| Connection | ER20 | |
| Cooling | Air Cooled | |
| Usage | CNC routers and engraving machines |
The dimensions above refer to the complete square housing, not to an 80mm round clamping diameter. Share the installation drawing with your machine integrator to verify hole spacing, spindle axis height and Z-axis travel.
Request ER20 Motor Drawing and Electrical Data
Use this square ER20 spindle for appropriate wood engraving, signs, cabinet components, panels and MDF profiles. Select cutter size, feed rate, spindle speed and dust extraction for the material and machining depth.
Acrylic letters, plastic panels and signage can be routed with cutters selected for chip evacuation and heat control. Avoid excessive rubbing, melting and chip recutting by matching the tool path and cutting conditions to the material.
Light-duty engraving or cutting of suitable nonferrous metals may be possible when machine rigidity, fixturing, cutting geometry, feed and cooling or lubrication are appropriate. The spindle is not represented as a heavy-duty metalworking machine spindle.
Discuss Your CNC Material and Cutter Requirements
The ER20 interface accepts suitably matched ER20 collets and nuts. Check tool shank diameter, collet engagement and maximum permissible tool load rather than assuming any ER-style collet will fit.
The rated motor output is 2.2kW. Machining capability also depends on spindle torque over the speed range, machine rigidity, cutter geometry and cutting parameters.
The motor requires a properly selected VFD and cannot be connected directly to normal mains supply. A qualified electrician should configure motor voltage, current, frequency limits and protective settings.
The manufacturer publishes 110V and 220V alternatives. They are separate configurations; do not assume one unit automatically supports both voltages or that VFD mains input equals motor output voltage.
The square body is intended for compatible mechanical mounting. Verify the published 280 × 117 × 132mm dimensions, the hole pattern and equipment clearance before selecting a replacement spindle.
Air cooling avoids water pumps, cooling tanks and coolant plumbing, but still needs unobstructed ventilation and suitable dust-control practices around the motor.
The product is identified as a four-bearing spindle. Bearing performance and service life depend on the actual supplied components, operating speed, loads, temperature and maintenance.
GRBL and other CNC controllers can be used with compatible VFD control interfaces when start/stop signals, speed reference, grounding and electrical isolation are designed and configured correctly.
The spindle range uses balancing processes intended to reduce vibration at high rotational speed. Actual noise, surface finish and tool life are affected by cutter balance, spindle bearings, workholding and machine structure.
The published comparison images show illustrative spindle runout measurements. Measurement location, installed collet, tool shank, instrument, operating conditions and tolerance acceptance criteria should be agreed for precision-critical procurement.
| Our Spindle Motor | Other Spindle Motor |
 |  |
| Illustrated reading: below 0.005mm | Comparison reading: 0.05mm |
The comparison figures do not establish a guaranteed runout for every spindle or a statistically representative comparison with other manufacturers. Request test data and acceptance criteria for the exact purchased motor if a numerical tolerance is required.
The technical reference describes a pre-soldered aviation lead and mentions two wrenches. Confirm connector pinout, cable length, protective earth connection, wrench inclusion and mounting-hole positions on the final quotation.
Ask About Spindle Runout and Installation Drawings
This is a motor-only product. The package table identifies a 2.2kW square air-cooled spindle and an aviation cable, and specifies an external 400Hz VFD requirement. An inverter, round spindle clamp, collet set or drill-bit assortment must not be assumed included.
| 1x | 2.2KW square air cooled spindle motor |
| 1x | Pre-soldered aviation wire for quick installation |
| The air cooled spindle motor should be equipped with a 400Hz VFD |
Two wrenches are mentioned in the technical reference rather than the separate motor-only packing table; confirm the exact accessories with the seller before ordering.
Request Motor-Only Packing List and Bulk Quotation
Compare related spindle motors by power, collet interface, square or round housing, voltage configuration and intended cutting duty. Each linked product has its own dimensions and included accessories.
ER11 0.8KW Air Cooled Spindle Motor
ER11 1.5KW Air Cooled Spindle Motor
ER20 2.2KW Round Air Cooled Spindle Motor
ER20 3KW Round Air Cooled Spindle Motor
ER11 1.5KW Square Air Cooled Spindle Motor
ER20 3KW Square Air Cooled Spindle Motor
ER25 4KW Square Air Cooled Spindle Motor
ER32 5KW Square Air Cooled Spindle Motor
ER32 6KW Square Air Cooled Spindle Motor
ER32 7.5KW Square Air Cooled Spindle Motor
Round Air-Cooled Spindle Motor Kits
Square Air-Cooled Spindle Motor Kits
Huajiang reports manufacturing CNC engraving spindle motors since 2000 and later expanding into VFDs and CNC router equipment. The Zhong Hua Jiang brand was established in 2018 to serve international markets.
The company references air-cooled spindle motor patents, including patent number 200730184245.5. For purchasing or regulatory requirements, request current supporting documentation, product-specific certificates and inspection records.
 | ||
Quality AssuranceStable product quality and strict inspection before shipment. | Patents and CertificationsPatented air-cooled spindle motor designs and manufacturing know-how. | Additional Brand ValueRecognized Zhong Hua Jiang brand value in global CNC markets. |
 | ||
Reasonable PriceFactory-direct supply for competitive B2B purchasing. | Responsive Technical SupportProfessional support for installation, VFD setup, and troubleshooting. | Fast and Reliable DeliveryEfficient delivery, export packing, and order tracking support. |
OEM machine builders, wholesalers, equipment distributors and maintenance suppliers can discuss exact electrical versions, technical drawings, inspection documentation, branded packaging, volume pricing and shipment plans. Commercial terms depend on the agreed order.
Contact Zhong Hua Jiang for Distributor Supply
Engraving and routing equipment, including the 3018, 3020, 3040 and 6090 families, for differing working envelopes and applications.
Spindles with alternative power ratings, cooling systems, shaft interfaces and housings for suitable CNC equipment.
Compatible collets, cable parts, limit switches, Z probes, machine control accessories and emergency-stop equipment.
Shielded power and signal cables selected for the specific drive and controller installation.
Stepper motors and related motion-control components for CNC positioning and replacement requirements.
The documentation shown above belongs to the manufacturer’s product information. For procurement or compliance, verify the issuing organization, certificate holder, model coverage, applicable standard and validity of the requested document.
The image presents customer feedback shared for the Zhong Hua Jiang spindle product range. For this square ER20 model, request documentation related to your specific configuration and machining requirements.
It is intended for compatible CNC routers and engraving machines used for woodworking, sign making, plastics routing, profiling and suitable light milling.
No. This is a standalone square air-cooled spindle motor. A correctly matched 400Hz VFD is required, and an inverter must be ordered separately unless included in a different written quotation.
The model is rated at 2.2kW with a published 10,000–24,000 RPM operating range and 400Hz frequency. Use a correctly programmed VFD and follow the delivered motor nameplate.
The published versions include 110V and 220V. Select the required motor version and verify the VFD mains input and motor output ratings for the installation.
The product summary lists 8.6A. Because some detail tables show a different figure, confirm the delivered motor nameplate and current setting with the supplier before wiring.
The product summary lists 280 × 117 × 132mm. Request a dimensioned drawing for mounting-hole positions, spindle-axis offset and installation clearance.
The product summary lists 8kg. Confirm the weight for the exact ordered version and whether quoted shipping weight includes accessories and packing.
A square spindle uses a different housing and mounting arrangement from an 80mm cylindrical spindle. Verify mechanical fit; a round clamp should not be assumed to suit the square housing.
The ER20 collet system accepts properly matched ER20 collets for a range of tool shank sizes. Choose a collet and nut for the exact shaft dimensions and machining task.
ER11 and ER16 are different collet systems and are not directly interchangeable with ER20. Use collets and nuts designed for the ER20 interface.
These are typical CNC routing applications. Select suitable tools, feeds, depth of cut and dust extraction for the workpiece and machine capability.
Yes, for suitable cutting operations with appropriate cutters, chip removal, speed settings and temperature control. Material behavior varies by grade.
Controlled light-duty machining of suitable nonferrous metals may be possible with appropriate fixturing, tooling, feed and lubrication. Heavy metal removal is not implied.
An appropriately rated VFD can connect to a compatible CNC controller if its speed-control and start/stop interfaces match. Wiring, grounding and isolation must be verified by a qualified installer.
The motor-only packing table identifies one 2.2kW square spindle motor and one pre-soldered aviation cable. A technical section also mentions two wrenches; confirm them in the itemized quotation.
Air cooling avoids a separate water pump, reservoir and hoses. Keep ventilation unobstructed and manage dust and operating temperature.
The website contains an illustrative comparison using that figure, but no test method or per-unit acceptance record is provided. Request written inspection criteria and test results for precision-sensitive use.
Zhong Hua Jiang accepts inquiries from OEM machine builders, wholesalers and distributors. Provide quantities, destination, motor configuration and documentation requirements for a quotation.
The supplier describes flexibility for trial and bulk orders. The MOQ for this exact motor or a customized configuration should be confirmed in the quotation.
Published guidance references approximately 3–7 working days for standard orders and 10–20 days for larger or customized orders. Confirm actual availability and lead time before purchase.
The manufacturer describes a 12-month warranty and ongoing technical support. Ask for the written warranty scope, exclusions, parts policy and support arrangements for your destination market.
Send required quantity, 110V or 220V version, intended VFD, machine mounting drawing, collet or cutter details, destination, inspection needs and any OEM packaging requirements.
