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ER32 7.5KW Square Air Cooled
220V/380V
10000-18000 RPM
17.9kg
Air Cooled
ER32
7.5KW
14.7A
430x122x110mm
The Zhong Hua Jiang ER32 7.5kW square air-cooled CNC spindle motor is designed for CNC routers, machining equipment and engraving machines used by manufacturers, OEM integrators and industrial workshops. The published product variants include 220V and 380V options, an ER32 collet interface and a speed range of 10,000–18,000 RPM.
This is a spindle motor-only product, not a motor-and-inverter package. A correctly matched external variable frequency drive (VFD) is needed for operation. Confirm voltage, current, frequency and mounting requirements against the selected motor nameplate before installation.
Request ER32 7.5kW Spindle Motor Pricing
Video content illustrates spindle motor equipment. The specifications and accessories shown may differ by model; use the 7.5kW ER32 specifications on this page when selecting a replacement or ordering a production batch.
CNC Router Machine Catalogue 2025.pdf
Download the Zhong Hua Jiang catalogue for an overview of CNC spindle motor categories, VFDs and related equipment. Contact the sales team to confirm the specification of the 7.5kW ER32 model.
The square-body 7.5kW spindle is intended for higher-power routing, engraving and milling systems. Compared with smaller ER11, ER20 and ER25 spindle models, its ER32 tooling interface can accommodate an appropriately selected range of tool-shank diameters. Tool and collet selection must follow the chuck and collet manufacturer’s specifications.
Air cooling removes the need for an external water pump, water tank and coolant hoses. The mounting arrangement, cooling-air clearance, machine rigidity and operating duty must nevertheless be checked for the finished CNC assembly.
Common use cases include wood and MDF routing, acrylic fabrication, plastic sheet machining and selected nonferrous-metal operations. Feasibility and cutting performance depend on spindle speed, cutter geometry, tool overhang, machine rigidity and feed settings; this motor is not a stand-alone promise of suitability for every metal-cutting operation.
For machine manufacturers and distributors, send your required voltage, approximate order quantity, mounting drawing, tooling size and application to request a model-specific quotation.
Request OEM / Distributor Spindle Specifications
| Voltage | 220V / 380V options | 1 × 7.5kW square air-cooled spindle motor |
| Speed | 10,000–18,000 RPM | 1 × pre-soldered aviation cable and 2 × wrenches |
| Rated Power | 7.5kW | External compatible VFD required; not included in this motor-only listing |
| Published Current | 14.7A | Confirm the current rating on the selected voltage version and nameplate |
| Rated Frequency | 300Hz | Set up the VFD according to the supplied spindle nameplate |
| Published Weight | 17.9kg | Confirm shipping weight separately from motor weight |
| Tool Holding | ER32 | Select a collet matched to the actual tool shank diameter |
| Cooling | Air cooled | Keep airflow paths clear during use |
| Application | CNC routers and engraving machines | Confirm the mounting layout and machine capacity |
Published motor dimensions: 430 × 122 × 110mm. The source also includes a conflicting 149 × 122mm dimension in another paragraph; use the product drawing and current mechanical drawing to verify mounting, bolt-hole pattern, spindle-nose location and Z-axis clearance before fabrication.
Power-supply clarification: the listing advertises 220V/380V variants and a published current value of 14.7A. These are variant-specific electrical selection matters, not permission to operate one motor interchangeably at both voltages. Match VFD output characteristics and protection parameters to the exact selected motor.
Confirm 220V / 380V Motor and VFD Compatibility
Typical equipment includes CNC wood routers, cabinetry machines and engraving stations. Confirm cutter diameter, cutting depth, feed rate and dust extraction for your installation.
The spindle may be integrated into machines for acrylic signmaking and plastic-sheet routing. Tool selection and chip evacuation are important for avoiding melting and edge damage.
Selected aluminum and brass applications may be considered when machine rigidity, spindle load, cutting forces and appropriate tooling are accounted for. Submit material, tool size and process requirements for a suitability review.
This ER32 spindle combines a 7.5kW rated-power class, square mounting body and forced-air cooling for integration into suitable CNC machines. Its motor speed is set using an external VFD rather than a built-in control unit.
The ER32 interface supports interchangeable collets selected for specific cutter-shank diameters. Verify the clamping range, nut, torque and maximum tool diameter before use; ER32 describes the collet family, not one fixed included collet size.
The published operating range is 10,000–18,000 RPM with a listed rated frequency of 300Hz. Enter motor nameplate values in the compatible VFD, and set up acceleration/deceleration ramps, rotation direction and protection parameters for the actual system.
The square profile suits a corresponding flat-surface CNC mounting arrangement. Compare the 430 × 122 × 110mm published envelope with your Z-axis assembly and check the mounting-hole layout against a current drawing.
The air-cooled design simplifies systems that would otherwise require an external coolant loop. Maintain the manufacturer-recommended air path and keep dust from obstructing the motor cooling passages.
Electrical versions are offered as 220V / 380V options. CNC controller and PLC integration depends on the selected VFD, its supported inputs or communications, the machine control design and qualified electrical installation.
Bearing design, balance and runout should be confirmed for the specific ER32 7.5kW variant. For production procurement, request the applicable inspection data and define the measurement location, test tool, operating conditions and acceptance criteria.
Discuss ER32 7.5kW OEM Integration
Product illustrations may depict other frequency or speed variants. For this ER32 7.5kW listing, refer to the 300Hz and 10,000–18,000 RPM published specification and the delivered motor nameplate.
Rotor balancing is important for vibration management at operating speed. Finished machining quality also depends on tool balance, collet cleanliness, machine structure and correct VFD setup.
The product listing describes a four-bearing spindle configuration. Bearing type, service conditions and expected life should be confirmed for the ordered version; bearing lifetime varies with installation, load, speed, temperature and maintenance.
Routine checks should cover abnormal vibration, operating noise, motor temperature, cooling-air flow and collet wear. Stop operation if the motor exhibits unexpected behavior.
Runout figures shown in promotional comparisons are illustrative and may not represent every shipped unit. Request an inspection report for the specific motor and specify measurement position, gauge setup, tooling and rotational condition for procurement acceptance.
| Spindle Runout Measurement Example | Comparison Example |
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| Request model-specific runout inspection results | Values depend on motor, tool, gauge and test conditions |
Confirm the bolt pattern and provide adequate support for the motor mass and Z-axis acceleration. Wiring and protective grounding should be completed by qualified personnel using the correct connector pinout and matched VFD. Do not operate the motor directly from an unsuitable mains supply.
Ask for Spindle Drawings and Inspection Data
| 1x | 1 × 7.5kW ER32 square air-cooled CNC spindle motor. |
| 1x | 1 pre-soldered aviation cable and 2 wrenches (as listed in the standard package). |
| A compatible 300Hz-capable VFD is required and is not part of the motor-only packing list. |
The source packing list identifies one 7.5kW spindle motor, a pre-soldered aviation cable and two wrenches. Verify the final packing list and the supplied ER32 collet size before order confirmation. The VFD is not listed as a bundled item.
For repeat orders, machine builders may request a packaging plan and configuration review covering labeling, connector arrangements, documentation and model identification.
Request 7.5kW Spindle Motor Packing Details
Compare ER11, ER20, ER25 and ER32 spindle options when selecting motors for CNC machine product lines. The models below are separate product listings with different power, geometry and electrical specifications.
ER32 6KW Air Cooled Spindle Motor Round Air Cooled Spindle Motor Kits Square Air Cooled Spindle Motor Kits
ER32 6KW Air Cooled Spindle Motor Round Air Cooled Spindle Motor Kits Square Air Cooled Spindle Motor Kits
Huajiang states that it began manufacturing CNC engraving spindle motors in 2000 and subsequently expanded its range to include variable frequency drives, CNC router machines and associated components. Zhong Hua Jiang is the brand used for international CNC product supply.
The company’s original profile references an air-cooled spindle design patent, No. 200730184245.5. Buyers seeking patent or certification documents for a specific purchasing jurisdiction should request the relevant documentation.
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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 machine builders and distributors |
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Reasonable PriceDirect factory sales Factory-direct quotations for industrial buyers | Full Time ServiceProfessional technical support Product selection and order communication | Fast and Reliable DeliveryLead time confirmed per quotation Shipment tracking where available |
For industrial enquiries, send the spindle version, application, order volume, required documents and destination country. Quotations should confirm the agreed specifications, delivery schedule, packing details and commercial terms.
Request Factory-Direct 7.5kW Spindle Quotation
CNC router systems for engraving, cutting and machining, including models in the company’s published product portfolio.
Air-cooled and water-cooled CNC spindle motor models in multiple power classes and tool-holding configurations.
Machinery components and setup accessories selected to match particular CNC platforms.
Double-shielded and moving-chain cable products for suitable CNC machine wiring applications.
Motion-system motors selected for the applicable drive, frame size and machine loads.
The image above is a company-level document display. Certification applicability should be checked against the exact motor model, market, certificate scope and current validity before using documents for product approvals.
Customer feedback displayed here may relate to other products in the Zhong Hua Jiang portfolio. To evaluate the 7.5kW ER32 motor, request model-specific specifications and applicable technical records.
It is a 7.5kW-class CNC spindle motor with a square housing and ER32 collet interface, intended for integration into appropriately designed CNC routers and engraving equipment.
No. This is a motor-only listing. The published packing list includes the spindle motor and specified installation accessories. A compatible external VFD must be selected separately.
The product listing identifies 220V and 380V options. Verify the actual voltage rating of the version being ordered; the same motor must not be assumed to accept both supply configurations.
The published range is 10,000–18,000 RPM. Set actual VFD speed and frequency limits according to the delivered motor nameplate and motor supplier instructions.
The product detail lists 300Hz. Confirm that your VFD can provide the required motor output voltage, power and current as well as the relevant frequency range.
No. Some catalogue graphics illustrate other spindle variants. Use the specified 300Hz, 10,000–18,000 RPM data for this listing and the actual nameplate before programming the drive.
The listing states 14.7A. Because voltage variants are offered, confirm the rated current for the specific motor version before selecting a VFD or protection devices.
The product attributes state 430 × 122 × 110mm. Obtain and check the mechanical drawing for fixing-hole locations, cable clearance and machine installation requirements.
The published product-attribute and specification-table weight is 17.9kg. Verify the actual unit and packaged shipping weights for final machine design and freight planning.
No. ER32 is the collet interface family. Confirm the exact collet sizes included or required for your cutter-shank diameters before ordering.
Wood and MDF routing are among the listed applications. Select cutter type, speed, feed and extraction methods based on the material and CNC machine design.
These are listed application materials. Appropriate tooling, feed settings, chip removal and temperature management are necessary for a satisfactory finish.
Selected soft-metal operations may be feasible, subject to sufficient machine rigidity, suitable cutters, workholding, chip management and the intended removal rate. Provide your cutting conditions for a suitability assessment.
Do not assume this spindle is suitable for steel machining solely from its 7.5kW rating. Suitability requires a review of required torque, spindle speed, tooling, bearing arrangement and machine rigidity.
No. Its cooling design uses air rather than an external water-cooling circuit. Keep motor airflow clear and follow the recommended installation conditions.
Do not connect it directly without the correctly specified motor drive and electrical design. A matched VFD and qualified electrical installation are required.
Control integration is usually handled through the selected VFD. Confirm supported analogue, digital or communication interfaces and the required wiring with your system integrator.
Agree on the test tool, gauge position, operating condition, measuring method and acceptance threshold. Request test evidence rather than treating a promotional comparison graphic as a guarantee.
The product listing refers to a four-bearing configuration. Confirm bearing type and exact configuration for the ordered version before specifying performance or maintenance expectations.
The source packing list describes one 7.5kW square spindle motor, one pre-soldered aviation cable and two wrenches. Verify the final accessory and collet list in the sales quotation.
A power rating alone is not enough to confirm replacement suitability. Compare housing dimensions, mounting holes, voltage, current, VFD requirements, spindle-nose geometry, tool holding and machine loads.
Zhong Hua Jiang lists OEM/ODM and distributor cooperation. Send expected volumes and requirements for branding, configuration or packaging so feasibility and commercial terms can be confirmed.
The product information refers to small trial orders for standard models and varying requirements for customized orders. Confirm the current MOQ for your selected voltage, configuration and destination.
The original published material quotes approximately 3–7 working days after payment for standard products and 10–20 days for larger or customized orders. These are indicative figures; request a current written lead-time confirmation.
The original product content states a 12-month warranty. Request the current warranty terms, coverage, exclusions and after-sales process with your purchase agreement.
Provide your market, expected order quantity, 220V or 380V variant, required collet sizes, intended material and process, delivery destination and any technical documentation requirements.
