7.5KW ER32 Square Air Cooled CNC Spindle Motor
The Zhong Hua Jiang 7.5KW ER32 square air cooled CNC spindle motor is designed for industrial CNC routers, engraving machines, milling machines, and heavy-duty cutting applications. It supports 220V/380V power input, 300Hz VFD operation, 10,000–18,000 RPM speed control, and ER32 tool holding for professional workshops, OEM machine builders, distributors, and bulk buyers.
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Zhong Hua Jiang CNC Catalogue PDF Download
CNC Router Machine Catalogue 2025.pdf
7.5KW ER32 Square Air Cooled Spindle Motor for Sale
The Zhong Hua Jiang 7.5KW ER32 square air cooled spindle motor is built for high-power CNC routing, heavy engraving, milling, and cutting applications in professional workshops and industrial production lines.
With 10,000–18,000 RPM speed control, 300Hz VFD compatibility, ER32 tool holding, and a rigid square body, this spindle motor is suitable for wood, MDF, acrylic, plastics, PCB materials, and soft metals such as aluminum and brass when matched with the correct tooling and feed rate.
As a factory-direct CNC spindle motor supplier, Zhong Hua Jiang supports OEM/ODM customization, bulk purchasing, distributor orders, and export documentation for machine builders and B2B buyers.
The air-cooled structure reduces maintenance compared with water-cooled systems and is easier to integrate into CNC router production environments where reliable heat dissipation and stable machining performance are required.
Technical Specifications of 7.5KW ER32 Air Cooled Spindle Motor
Voltage | 220V/380V | 1 pcs 7.5KW Square Spindle Motor. |
Speed | 10000-18000 | 1 pcs Pre-soldered aviation wire and 2 pcs wrenches for quick installation. |
Power | 7.5KW | This spindle should be equipped with 300Hz VFD. |
Electric Current | 14.7A | |
Frequency | 300Hz | |
KG | 17.9KG | |
Connection | ER32 | |
Cooling | Air Cooled | |
Usage | Engraving Machines |
Applications & Use Cases for CNC Router Workshops
Wood
Acrylic
Soft Metals
Features of 7.5KW CNC Air Cooled Spindle Motor
Zhong Hua Jiang ER32 7.5KW Square Air Cooled Spindle Motor is a high-performance component designed to deliver power, precision, and durability to your CNC engraving, milling, and cutting projects. Whether you're a professional workshop operator or a small business owner tackling demanding applications, this spindle motor offers features that are ideal for heavy-duty and industrial use.
Equipped with an ER32 collet for secure holding of larger tools, it delivers speeds from 10,000 to 18,000 RPM with a runout of less than 0.01mm, ensuring high accuracy and stability even during prolonged heavy operation. The air-cooled design efficiently dissipates heat without the need for additional water systems, making it low-maintenance and reliable for robust setups, while its 220V/380V compatibility and intelligent control system simplify integration into various CNC routers.
With four upgraded bearings that extend its lifespan up to three times longer than standard models, this motor excels in tasks like milling wood, acrylic, soft metals, and heavier materials, reducing noise and vibration for smoother, more efficient results. Often bundled with a VFD kit for easy speed control, it's a powerful upgrade for enhancing your machine's performance without complexity.
Key Features for Industrial CNC Routing
User-Friendly Control
Zhong Hua Jiang ER32 7.5KW Air Cooled Spindle Motor features an intelligent control system, designed for ease of operation, making it accessible for users of all skill levels.
High-Precision Collet System
Equipped with an ER32 collet, ensuring secure tool holding, minimal runout, and precise machining for consistent results.
VFD / PLC Speed Control Compatibility
Integrated with program logic controller (PLC) compatibility, allowing easy adjustments for speed (10000-18000 RPM) and other parameters to suit various project needs.
Reliable Electrical Components
All electrical components, supporting 220V/380V and 14.7A current, are branded for stability and reliability, ensuring long-lasting performance.
Accurate Speed Regulation
Features precise speed control with a range of 10000-18000 RPM, enabling smooth and accurate operation for diverse CNC applications.
Optimized Air-Cooling Design
The specially-designed air cooling system (149*122mm, 430mm, 17.5KG) ensures efficient heat dissipation, enhancing durability and performance for extended CNC operations.
Advantages of Zhong Hua Jiang Air Cooled Spindle Motor
Advanced Dynamic Balance Design
Innovative & advanced dynamic balancing technology
Effectively reduce the noise
Increase stability in the working process
Extended Working Life
Authentic 4pcs upgraded
Superior durability steel bearings
All copper lengthening coil of rotor
Working life can reach 2 years for 8 hours / day
| Our Spindle Motor | Other Spindle Motor |
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| Runout less than 0.005mm | Runout 0.05mm |
High Accuracy & Concentricity
Further processing for spindle motor
Spindle motor runout is less than 0.005mm.
10 times precision beyond normal spindle motor
10 TIMES PRECISION RUNOUT OFF
Easy and Fast Installation
Equipped with pre-soldered aviation wire for quick installation
Installation holes on both sides
Package List of 7.5KW Air Cooled Spindle Motor
Whether you're a hobbyist or a professional CNC workshop, we have the ideal Zhong Hua Jiang Air Cooled Spindle Motor solution for you. Our Air Cooled Spindle Motors support a wide range of projects, from intricate engravings to heavy-duty cuts, suitable for various skill levels. If the standard configuration doesn't meet your needs, please feel free to contact our professional sales team to customize the perfect Air Cooled Spindle Motor solution for your projects.
Recommended Air Cooled Spindle Motor Models
Besides the Zhong Hua Jiang 7.5KW ER32 Air Cooled Spindle Motor, we offer a variety of other spindle motor models to suit diverse CNC project needs. Our lineup includes the 0.8KW/1.5KW air cooled spindle motor for compact precision tasks, the 2.2KW/3KW air cooled spindle motor for high-performance engraving and cutting on wood, acrylic, and soft metals, the 4KW/5KW/6KW air cooled spindle motor for larger-scale professional projects, and specialized water-cooled spindle options for enhanced versatility.
Round Air Cooled Spindle Motor Kits
Square Air Cooled Spindle Motor Kits
Company Profile: CNC Spindle Motor Manufacturer
CNC Spindle Motor Manufacturer
How We Started
Huajiang was founded in 2000, starting with the production of CNC engraving spindle motors and later expanding into VFDs, CNC router machines, and CNC accessories.
To serve more international customers, we established the Zhong Hua Jiang brand in 2018.
What Makes Us Proud
We have registered patent for our series of air cooling spindle motor. The patent No:200730184245.5.
We have 20 years manufacturing experience in this field.
We export CNC spindle motors and CNC router products worldwide, including customers in the United States, Germany, and other major industrial markets.
Why Choose Zhong Hua Jiang Spindle Motors
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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 by the market |
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Reasonable PriceDirect factory sales Highly cost performance | Full Time ServiceProfessional technical support Close and quick customer service | Fast and Reliable DeliveryFast and efficient delivery Real-time tracking and updates |
LEADING CNC MACHINE/CNC SPINDLE MOTOR
MANUFACTURER SINCE 2000
Our CNC Product Range
CNC Router Machines
Our state-of-the-art Zhong Hua Jiang CNC router machines, including models like the 3018, 3020, 3040, and 6090, guarantee precision, efficiency, and reliability, essential for high-quality engraving and cutting projects.
CNC Spindle Motors
Power your CNC projects with our advanced spindle motors, including air-cooled and water-cooled options, designed to meet rigorous performance standards for diverse materials.
CNC Accessories
Enhance your CNC operations with our precision accessories, such as limit switches, Z probes, and emergency stop buttons, perfect for ensuring safety and accuracy.
Electrical Wires
Ensure reliable and safe connections with our double-shielded cables and shielded chain cables, designed to minimize signal interference and enhance durability.
Stepper Motors
Drive your CNC machine with our high-performance stepper motors, offering precise control and robust operation for consistent project outcomes.
Product Certification
Customer Feedback
FAQ: 7.5KW Air Cooled CNC Spindle Motor
1. What materials can the 7.5KW Air Cooled CNC Spindle Motor work with?
The 7.5KW ER32 spindle is suitable for CNC routing, engraving, milling, and cutting on wood, MDF, acrylic, plastics, PCB, PVC, plexiglass, and soft metals such as aluminum or brass when used with proper tooling, feed speed, and cooling strategy.
2. Can I purchase the 7.5KW Air Cooled CNC Spindle Motor in bulk or as a distributor?
Yes. Zhong Hua Jiang supports bulk orders, distributor cooperation, reseller purchasing, and OEM machine-builder supply. We provide factory-direct pricing, stable production capacity, export support, and technical documentation for B2B customers.
3. Do you offer OEM or customization services?
Yes. We provide OEM and ODM services for logo, packaging, voltage requirements, collet configuration, wiring, and selected technical specifications. Our engineering team can help match the spindle motor to your CNC router design and target application.
4. What is your minimum order quantity (MOQ)?
We accept small trial orders for standard 7.5KW air cooled spindle motors before bulk purchasing. For OEM or customized orders, MOQ depends on the requested configuration, packaging, and production requirements.
5. How long is your production and delivery time?
For standard models, typical lead time is 3–7 working days after payment. For large-volume or customized orders, production usually takes 10–20 days depending on quantity and configuration. International shipping support is available.
6. What kind of warranty do you provide for the 7.5KW Air Cooled CNC Spindle Motor?
All spindle motors and related accessories are covered by a 12-month warranty. Each unit is inspected before shipment, and we provide technical support and replacement support for quality-related issues during the warranty period.
7. Do you provide after-sales technical support?
Yes. Zhong Hua Jiang provides lifetime technical support by email, online chat, or video call. Our engineers can assist with installation, VFD parameter setup, wiring checks, and troubleshooting. Distributor documentation and training support are available for qualified partners.
