Four Decades of Precision Engineering
In the competitive landscape of electrical transformer manufacturing equipment, few companies can claim the depth of experience and technical expertise that Shanghai Tongli Electrical Engineering Equipment Factory brings to the table. Founded in 1984, this Shanghai-based manufacturer has dedicated over four decades to the research, development, and production of specialized equipment for the transformer industry.
Company Profile at a Glance
| Attribute | Details |
|---|---|
| Company Name | Shanghai Tongli Electrical Engineering Equipment Factory |
| Established | 1984 |
| Location | Shanghai, China |
| Factory Size | 10,000+ square meters |
| Employees | 50–100, including 20+ engineering and technical personnel |
| Business Type | Manufacturer |
| Export Ratio | 70%–80% |
| Annual Sales | $5 million–$10 million |
| Certification | ISO9001 Quality Management System |
Comprehensive Product Portfolio
Tongli's product range extends beyond coil winding machines to cover the full spectrum of transformer manufacturing equipment:
- DYJ High & Low Voltage Winding Machines: Manual and semi-automatic models for small to medium transformer coils
- DYJz Automatic Wire Guiding and Winding Machines: CNC/PLC controlled for high-precision production
- PRJ Foil Winding Machines: For aluminum foil and copper foil winding applications
- SKJ Cut-to-Length Lines: Precision silicon steel sheet processing
- BW Corrugated Tank Fin Forming Machines: For transformer tank manufacturing
- Slitting and Shearing Machines: Silicon steel processing equipment
Manufacturing Infrastructure
The company's 10,000+ square meter modern factory is equipped with more than 100 types of professional processing facilities, including high-tech metal cutting and CNC machining equipment. The infrastructure is organized into dedicated departments for design, production, quality control, and R&D—with regular equipment upgrades ensuring manufacturing capabilities remain at the cutting edge.
Global Footprint
With an export ratio of 70%–80%, Tongli has established a strong international presence. The "Tongli" brand has earned recognition and trust from transformer manufacturers worldwide, with products shipped to markets across Asia, the Middle East, Africa, South America, and beyond. The company's commitment to quality is reflected in its long-standing client relationships and repeat business from international buyers.
Commitment to Innovation
Engineering talent forms the backbone of Tongli's competitive advantage. With over 20 engineering and technical personnel—representing approximately one-third of the workforce—the company maintains a strong focus on product innovation and continuous improvement. Recent advancements include servo-driven wire guiding systems, PLC-based intelligent winding programs, and enhanced man-machine interface designs that simplify operator training and reduce setup times.
Client-Centric Philosophy
Tongli's business philosophy, "Integrity Basis and Quality First," has guided the company since its founding. This commitment translates into practical benefits for clients: OEM customization capabilities, 1-year comprehensive warranty, lifelong spare parts supply, and free first-time commissioning and training with every machine purchase.
Conclusion: For transformer manufacturers seeking a reliable, experienced equipment partner with proven global delivery capability, Shanghai Tongli represents a compelling choice backed by 40 years of continuous operation and thousands of satisfied customers worldwide.
