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Heavy-Wall Steel Motor Housing Manufacturer
Jiangsu Yufeng Electric Co., Ltd. is a professional manufacturer of heavy-wall steel motor housings, integrating stamping, welding assembly, machining, and surface treatment into one production system. With 40 years of industry focus and an annual capacity exceeding 5 million units, we supply robust housings for large industrial motors, mining equipment, compressors, and heavy-duty fans. Our full-process factory in China ensures consistent quality and traceability from raw material to finished product.
Our heavy-wall series is designed for applications where standard housings cannot withstand extreme torque, vibration, or impact loads. We offer two standard configurations—inner diameters of 260 mm and 343 mm—and support custom designs to match your motor's performance and mounting requirements.
Product Range and Positioning
We manufacture two primary heavy-wall steel motor housing models, each engineered for high-stress environments:
| Model | Inner Diameter | Height | Wall Thickness | Typical Applications |
|---|---|---|---|---|
| Inner Diameter 260 Heavy-Wall Motor Housing With Base | 260 mm | 360 mm | 5 mm | Large industrial motors, mining crushers, compressors, heavy-duty fans |
| Inner Diameter 343 Heavy-Wall Motor Housing With Base | 343 mm | 450 mm | 6 mm | Extra-large industrial motors, mining ball mills, marine propulsion, large compressors, power plant generators |
Both models include a welded terminal block for secure electrical connections, a lifting lug for safe handling, and a mounting foot for stable installation. These features are standard, but we can adapt them to your specific layout.
Application Fit and Engineering Value
Heavy-wall steel motor housings are specified when motors operate under high mechanical stress or in harsh environments. The thick wall provides superior compression resistance, impact resistance, and deformation resistance compared to standard sheet metal housings. Our engineering team, with an average of over 20 years of experience, works with you to optimize the housing structure for your motor's torque, vibration, and mounting constraints.
We serve industries such as mining, marine, power generation, and heavy manufacturing. For example, the 343 mm model is suitable for shield machine main drive motors, where reliability is critical. We also support custom modifications like additional mounting points, alternative terminal block positions, or special surface treatments.
Materials and Workpiece Considerations
We use high-strength steel coils that are slit and formed to meet your dimensional and mechanical requirements. The material grade is selected based on the application's load and environmental conditions. For corrosive environments, we can apply electrophoretic coating or powder coating as a protective finish. Our in-house surface treatment lines ensure uniform coverage and adhesion.
If your application requires stainless steel for corrosion resistance, we also offer Stainless Motor Housing options. For lighter-duty applications, our Steel Motor Housing series may be more cost-effective.
Critical Specifications and Accuracy
Key specifications for heavy-wall housings include inner diameter tolerance, concentricity, and surface finish. We use precision machining and custom gauges to control critical dimensions, ensuring that the housing fits your stator and rotor assembly correctly. Our quality system, certified to ISO 9001:2015, includes 100% process control for critical characteristics, with full traceability to raw material batches and production operators.
For automotive and new energy vehicle applications, we implement additional process controls aligned with IATF 16949 standards, though our heavy-wall series is primarily for industrial use.
Configuration Options and Customization
We offer several configuration options to match your installation and assembly needs:
- Base type: Standard mounting foot or custom base plate for confined spaces.
- Terminal block: Position and size can be adjusted for cable entry and connection.
- Lifting lug: Optional additional lugs for heavier motors.
- Surface treatment: E-coating, powder coating, or bare steel for further processing.
- Machining: Additional drilling, tapping, or milling for sensors, brackets, or cable glands.
We also produce other motor housing types, such as Steel Tube Motor Housing and Part Of Motor, to cover a wide range of motor sizes and applications.
Quality Assurance and Acceptance Testing
Our quality process starts with incoming material inspection and includes in-process checkpoints at stamping, welding, machining, and surface treatment stages. We use customized gauges and inspection instruments to verify dimensions and critical characteristics. Each batch is traceable, and we maintain a closed-loop system for defect analysis and corrective action.
Before shipment, finished housings undergo final inspection to ensure they meet your specifications. We can provide inspection reports and certificates upon request, supporting your incoming quality control.
Installation, Maintenance, and Serviceability
Our heavy-wall housings are designed for easy installation and maintenance. The welded lifting lug facilitates hoisting, and the mounting foot simplifies alignment. The terminal block allows for secure and accessible electrical connections, reducing downtime during maintenance.
We provide documentation including dimensional drawings, material certificates, and inspection reports. Our team is available for technical support during installation and throughout the product's life.
Information We Use to Configure Your Solution
To prepare a precise quotation and configuration, please provide the following details:
- Product drawings or detailed specifications (inner diameter, height, wall thickness, material grade).
- Estimated annual demand or quantity per batch.
- Special technical requirements (protection level, precision tolerances, surface treatment).
- Application environment (indoor/outdoor, temperature, humidity, corrosive exposure).
- Any specific mounting or connection requirements.
With this information, we typically provide a quotation within 2–3 working days. For standard custom projects, samples can be delivered within 3–10 working days; complex projects may require up to 15 days for first articles.
Frequently Asked Questions
What is the lead time for heavy-wall motor housing samples?
For standard custom designs, samples are typically ready within 3–10 working days. More complex configurations may take up to 15 days for first-article samples.
Can you customize the mounting foot or terminal block position?
Yes, we can adjust the base design, terminal block location, and lifting lug configuration to match your motor assembly and installation constraints.
What surface treatments are available?
We offer electrophoretic coating (e-coating) and powder coating. These provide corrosion resistance and improve durability in harsh environments.
Do you provide quality documentation?
Yes, we can supply material certificates, dimensional inspection reports, and other quality documents as required by your quality assurance team.
Can you handle small batch orders?
Absolutely. We support multi-variety, small-batch production, which is ideal for R&D trials and pilot runs.
