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Zhong Hua Jiang ER20 2.2kW water-cooled CNC spindle kit includes an 80mm motor, matching VFD, mounting clamp, pump, 5m hose, ER20 collets and wiring for CNC router integration.
ER20 80mm 2.2KW Round Water Cooled kit
110V/220V/380V
10000-24000 RPM
5.2KG
Water Cooled
ER20
2.2KW
8.5A
Ф80mm*289mm
This video provides a general spindle demonstration. Check the specifications and exact supplied configuration for this ER20 2.2kW kit.
CNC Router Machine Catalogue 2025.pdf
The Zhong Hua Jiang ER20 2.2kW water-cooled spindle motor VFD kit combines an 80mm round CNC spindle with a 2.2kW variable frequency drive and the accessories listed in the package table below. Designed for CNC router manufacturers, equipment resellers and professional workshops, it supports spindle replacements and new CNC machine builds.
The ER20 toolholding system accommodates interchangeable collets for different cutter shank sizes. The product listing identifies a spindle speed range of 10,000–24,000 RPM, a Φ80mm mounting diameter and a water-cooled housing intended for operation with a properly maintained coolant circulation system.
The documented kit contains a mounting clamp, water pump, 5m hose, ER20 collet assortment, drill bits, aviation cable, power cable and two wrenches in addition to the motor and inverter. Buying these items as one configured set can simplify component selection, subject to confirming the electrical ratings of every supplied item.
For distributor sourcing, production-machine assembly or repeat orders, tell Zhong Hua Jiang the required voltage version, VFD input supply, CNC controller model, installation envelope and expected quantity. Final specifications, accessories and delivery details should be checked against the written quotation.
Request ER20 2.2kW Water-Cooled Kit Quote
The published package includes one Φ80mm 2.2kW round spindle, one 2.2kW VFD, one Φ80mm clamp, a water pump, 5m of hose, 13 ER20 collets described as 1–13mm, ten drill bits described as 0.8–3mm with 1/8-inch shanks, aviation and power wires, and two wrenches. The spindle is listed as Φ80 × 289mm and approximately 5.2kg.
| 1x | Ф80mm2.2KW Round Spindle Motor |
| 1x | 2.2KW VFD Inverter |
| 1x | Ф80mm Clamp Mount |
| 1x | Water Pump |
| 1x | 5 Meter Water Hose |
| 13x | Collets ER20(1mm-13mm) |
| 10x | Drill Bits(0.8-3mm, 1/8" Shank) |
| 1x | Aviation wire |
| 1x | Power wire |
| 2x | Wrenches |
| Spindle motor Size: Ф80mm*289mm | |
| Spindle Weight: 5.2kg |
Check the following compatibility factors before integrating the package into a new CNC router or replacing an existing spindle.
| Buyer Check | Purchase / Installation Details |
|---|---|
| Spindle and clamping | 2.2kW ER20 water-cooled spindle, Φ80mm round body and Φ80mm clamp |
| Motor dimensions and weight | Published Φ80 × 289mm, approximately 5.2kg spindle-only |
| Voltage options | 110V / 220V / 380V listed; confirm the exact ordered version |
| Published current | 8.5A shown; verify against the motor nameplate for each variant |
| Spindle speed | 10,000–24,000 RPM; observe actual tool and motor operating limits |
| VFD | One 2.2kW inverter supplied; confirm input supply, output and rated-frequency settings |
| Frequency | Related standalone 2.2kW motor page states 400Hz; verify supplied unit |
| Cooling | One pump and 5m hose listed; pump voltage and flow rate require confirmation |
| ER20 collets | Thirteen pieces listed, spanning 1–13mm; request individual size list |
| Controller and wiring | Verify command interface, wiring, grounding and protective controls |
Confirm Motor Voltage, VFD and Pump Ratings
The application photographs show representative CNC working materials. Cutting performance depends on the actual machine, spindle settings, tooling, workholding and material.
Discuss CNC Router Integration
The water-cooled 2.2kW spindle, ER20 clamping system and matching inverter are designed to function as a CNC cutting and engraving drive arrangement. The pump and hose form part of the cooling circuit, which must circulate coolant before the spindle is operated.
A Φ80mm mounting clamp and ER20 collets are identified in the standard kit contents. Confirm Z-axis load capacity, the cutter shank range and the space needed for spindle housing, cable connectors and water lines before selecting this kit as a machine upgrade.
The product description references dynamic balancing, precision bearings and pre-programmed VFD settings. These are supplier-described features; for tolerance-controlled applications, request the current motor drawing, inspection criteria and the relevant VFD and electrical specifications.
One 2.2kW VFD inverter is included. The listing describes its parameters as prepared for the spindle, but electrical commissioning is still required to verify supply voltage, output voltage, motor rated current and frequency, rotation direction and control wiring.
The ER20 collet system offers interchangeable toolholding for different cutter shanks. The kit table lists 13 collets within a 1–13mm range; buyers with defined cutter sizes should request the exact collet breakdown and verify compatibility with each cutting tool.
VFD start, stop and speed control may be integrated with a machine controller through supported control terminals or appropriate interface equipment. Controller compatibility depends on the supplied VFD model and the CNC system, not merely on the ER20 spindle itself.
The published listing offers 110V, 220V and 380V choices and shows 8.5A as a product current value. Rated current, VFD input and output voltage must be confirmed for the selected version; the water pump voltage is not specified in the package table and should be confirmed separately.
The spindle is described for 10,000–24,000 RPM operation. A related standalone 2.2kW ER20 water-cooled spindle listing specifies 400Hz; verify the actual kit spindle nameplate and inverter limits before entering frequency settings or choosing a controller speed scale.
The Φ80mm water-cooled housing is listed at 289mm overall length and approximately 5.2kg spindle weight. Coolant flow, hose connections, a suitable reservoir and leak prevention are necessary considerations for continuous CNC operation.
Request ER20 Spindle Drawings and Specifications
Dynamic balancing, collet seating, tool length and host-machine rigidity all affect vibration and finished surface quality. For close-tolerance work, assess the full rotating tool assembly rather than assuming that spindle construction alone determines accuracy.
Water-cooled spindles still require careful spindle mounting, tool clamping, cable routing and coolant-flow checks. Appropriate feeds and speeds depend on the cutting tool, material and rigidity of the complete CNC machine.
Correct spindle cooling and cutter selection can reduce unnecessary heat load during machining. Inspect collets, keep tools within permitted speed ratings and confirm that the coolant circuit is operating before machining starts.
The supplier describes a four-bearing arrangement with upgraded steel bearings and copper winding construction. The exact bearing series, lubrication and permitted axial and radial loads should be reviewed with the manufacturer where they affect equipment acceptance.
Service life depends on operating conditions including tool balance, load, coolant temperature, maintenance and correct inverter setup. The original descriptive text includes an indicative life statement; request agreed operating conditions rather than treating this as a fixed lifespan.
Use a rigid and correctly aligned mount to avoid additional load from misalignment or machine vibration. Inspect the cable and cooling connections at planned maintenance intervals.
For OEM integration or distributor qualification, confirm application duty, running hours and maintenance practices. Any guaranteed life or performance requirement should be agreed in writing.
| Our Spindle Motor | Other Spindle Motor |
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| Supplier reference: runout <0.005mm (measurement conditions to confirm) | Illustrative comparison: 0.05mm (not an independent test) |
The comparison is a supplier example. Precision acceptance requires an agreed collet, test bar, measuring location and measuring conditions; generic competitor values are not independently verified.
The supplier comparison below displays a runout reference of less than 0.005mm against a generic comparison value of 0.05mm. Test position, reference tooling, measuring method and conditions are not stated; for acceptance, request a defined inspection method and individual test data.
Actual tool-tip runout is influenced by the spindle, ER20 collet, cutter shank, clamping condition and measuring location. A specification should identify the test setup rather than quoting a single value without context.
The published comparison is illustrative; it does not establish that every alternative spindle has a 0.05mm reading. Inspect the actual ordered spindle under an agreed measurement procedure when accuracy is critical.
Request inspection conditions and available measurement records for precision-sensitive orders.
The package lists aviation wiring, power wiring and two wrenches. The supplier also describes the included VFD as programmed; always verify terminal assignments, protective grounding, mains supply, motor parameters and cooling before first use.
Before startup, circulate the coolant, check for hose leaks and verify VFD voltage, frequency and motor direction according to the supplied instructions. Electrical work should be carried out by qualified personnel.
Ask for VFD Commissioning Information
Packaging photographs show examples of spindle shipment and protective packing. Confirm the detailed packing list, individual collet sizes, VFD model, pump voltage, power connector type and packaging needs for the destination market.
The published package details do not identify the pump voltage. Verify this separately from the motor voltage, and confirm the current packing list before placing an order.
Check Kit Contents and Packaging Options
Related water-cooled kits are available for different CNC machine requirements. The linked 1.5kW model uses an ER11 collet system, while the linked 3kW kit is an ER20 model. Select by power demand, spindle diameter, tool shank size, controller and electrical supply.
Compare ER11 1.5kW and ER20 3kW Kits
Zhong Hua Jiang describes its spindle production activities as starting in 2000, followed by expansion into VFD inverters and CNC engraving machines.
The Zhong Hua Jiang brand was introduced in 2018 for its CNC-related product range.
The company references patent No. 200730184245.5 relating to its air-cooled spindle line; the patent should not be interpreted as certification of this water-cooled VFD kit.
The company reports more than 20 years of experience with CNC spindle manufacturing and related equipment.
The manufacturer describes export supply to customers in multiple overseas markets. For a specific project, request the relevant technical and commercial documents.
Product-specific compliance documents and inspection requirements can be requested when evaluating the kit for OEM supply or distribution.
Request OEM / Distributor Quotation
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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 for CNC buyers |
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Reasonable PriceDirect factory sales Cost-conscious factory supply | Full Time ServiceProfessional technical support Close and quick customer service | Fast and Reliable DeliveryShipping options by order Order and shipping communication |
Company certificates and patents may relate to particular product families. For procurement documentation, confirm which records apply to the ordered water-cooled spindle, VFD and accessories.
The company supplies CNC router machines and machining equipment across multiple machine-size categories. Check spindle power, mount diameter and controller requirements when choosing a router platform.
Water-cooled spindle motors use an external coolant circuit, while air-cooled versions use air circulation. Compare environmental conditions, maintenance arrangements, noise requirements and integration space before choosing between them.
CNC accessories include electrical controls and machine accessories. Exact part compatibility depends on the intended machine and its control wiring.
Shielded power and signal wiring can be relevant when connecting variable frequency drives and CNC controllers. Cable size, shielding and earthing should be chosen for the installed electrical system.
Stepper motors provide axis motion for CNC equipment. Coordinate axis travel and rigidity with spindle mass, tool forces and required machining accuracy.
The image shows supplier documentation. Request current model-specific certificates or technical documents needed for your market and intended equipment.
These questions cover specifications, VFD compatibility, water-cooling requirements and purchasing considerations for CNC machine manufacturers, workshops and distributors.
The package lists one 2.2kW Φ80mm spindle, one 2.2kW VFD, a Φ80mm mounting clamp, water pump, 5m hose, thirteen ER20 collets, ten drill bits, aviation and power wires, and two wrenches.
It is listed as a kit with a VFD and cooling components. The package table identifies the included components; check the current quotation for the exact electrical versions and individual accessory specifications.
The listed motor is Φ80mm in diameter and 289mm long. Request the current mechanical drawing for precise mounting, cooling fittings and cable clearance.
The product lists approximately 5.2kg for the spindle. This is not the confirmed total weight of the complete packaged kit.
The listing identifies 110V, 220V and 380V options. Confirm the selected motor nameplate and both the input and output voltage ratings of the accompanying VFD.
The page shows 8.5A as a published product value without a version-by-version breakdown. Use the rated current printed on the actual spindle nameplate when setting the VFD.
The standard list contains one 2.2kW variable frequency drive. Ask for its model, mains input rating, motor output rating, rated frequency range and control-interface details before purchase.
The related standalone ER20 2.2kW water-cooled motor listing states 400Hz. Confirm the exact motor nameplate and supplied inverter documentation before configuring frequency and speed limits.
The supplier describes the VFD as pre-programmed. Verify all parameters, wiring, grounding, cooling and the motor rotation direction during commissioning rather than treating it as plug-and-play.
The listed operating range is 10,000 to 24,000 RPM. Follow the actual motor, inverter and cutting-tool limits for the ordered version.
The package table lists thirteen ER20 collets spanning 1–13mm. Ask the sales team to confirm the exact individual sizes and whether a particular collet is required for your cutter shank.
Ten bits are listed, described as 0.8–3mm diameter with a 1/8-inch shank. The individual size assortment and intended material should be confirmed before ordering.
Yes, one water pump is listed. However, the source does not specify its voltage, flow rate or connector, so these details should be matched to the destination power supply.
Yes. The package lists a 5-meter water hose. Confirm hose routing, fitment and any additional fittings, coolant reservoir or chiller needed in the final installation.
The package table lists a pump and hose but does not expressly list a tank or chiller. Ask for a complete packing list if those items are required.
No. Establish proper water circulation before running the spindle and stop operation if the cooling flow fails or leaks are detected.
It may be suitable for routers with the required Φ80mm mount, sufficient Z-axis load capacity, suitable electrical supply and an appropriate CNC controller. Check the host-machine details before retrofitting.
The supplier lists acrylic and plastics among the intended applications. Appropriate cutter design, chip extraction, feed, speed and cooling practices are still required.
Light-duty work on selected nonferrous alloys may be considered when the machine is rigid, tooling is suitable and cutting forces are controlled. The listing does not justify unrestricted heavy metal milling.
Control integration depends on the actual GRBL board, VFD terminal functions, supported speed command and any required interface components. Verify these interfaces before connecting them.
ER20 describes the collet toolholding system. It is not an automatic tool changer; tools are clamped using compatible ER20 collets and the appropriate tightening method.
The supplier comparison illustrates less than 0.005mm, but does not specify the measuring point or conditions. For strict tolerances, define the measurement procedure and request inspection records.
The source describes four upgraded steel bearings. For OEM qualification, confirm the actual bearing series and operating restrictions of the supplied variant.
The packing table lists one aviation wire, one power wire and two wrenches. Confirm cable lengths, plug pinout, grounding and other electrical connection details before installation.
A direct swap is not assured. The Φ80mm body and approximately 5.2kg spindle may require a different mount, Z-axis load assessment and additional clearance, as well as compatible electrics.
Zhong Hua Jiang describes wholesale and distributor cooperation. Provide your required quantity, target markets, voltage versions and packaging specifications to request a quotation.
The supplier describes OEM customization and branding discussions. Availability, minimum quantities and implementation details must be agreed for the specific request.
The supplier discusses standard trial orders and OEM orders but does not establish one universal MOQ for every configuration. Request the applicable MOQ with your specified quantity and options.
The published source describes a 12-month warranty and technical support. Confirm the written coverage, exclusions and service process for the selected spindle, VFD and accessories.
Contact Zhong Hua Jiang with your intended quantity, country, voltage, CNC controller, available Φ80mm mounting clearance, preferred collet sizes and machine application.
