Automatic EI-48 Lamination Stacking Machine for Transformer Core Assembly

The EI-48 automatic lamination stacking machine is engineered for high-volume production of EI-48 low-frequency transformer cores. It precisely inserts E & I silicon steel laminations into transformer coil bobbins under PLC control, completing the core assembly process with exceptional accuracy and consistency. Compared with manual operation, it improves production efficiency by 8-10 times and raises core consistency above 95%, making it the core production equipment for small and medium-sized transformer manufacturers.

Key Specifications

Key Features & Advantages

✅ Compact & Export-Friendly Design – Optimized structure reduces volume and weight, convenient for international shipping via express courier or air freight.

✅ PLC Intelligent Control – Touch-screen PLC allows precise automatic adjustment of lamination quantity and stacking speed; quick parameter changes for different core sizes.

✅ Precision Stacking – Handles 0.3 mm, 0.35 mm and 0.5 mm EI silicon steel sheets smoothly, ensuring consistent stacking accuracy and tight core integration.

✅ Jam-Resistant Operation – Auto-stop function when lamination jams occur, delivering smoother, interruption-free production and less downtime.

✅ Cardboard Bobbin Compatibility – Works seamlessly with cardboard bobbins, a common requirement in North American and European markets.

✅ Durable & Safe – High-strength structural steel frame, dual grounding, overload and short-circuit protection, emergency stop and safety guards.

✅ Easy Maintenance – Modular design simplifies routine maintenance; remote support and video guidance available.

Applications

Widely used in the manufacturing of low-frequency transformers, power transformers, audio transformers, instrument transformers and other electromagnetic components requiring EI-48 core stacking. Full series from EI-19 to EI-300 is available to meet diverse production requirements.

Why Choose Us?

Direct manufacturer with competitive factory pricing and CE certified quality assurance. Our products have served globally renowned customers including GE Vernova and Eaton (USA) as well as leading enterprises such as CATL and Chint Electric, and are exported to more than 20 countries and regions. Fast delivery within 1-15 working days, professional after-sales technical support, 12-month warranty.

Shanghai Liangui Technology Co., Ltd. Was founded in 2019, we are committed to promoting the prosperity and development of the world through technology, focusing on Intelligent Equipment & Automation Solutions to help enterprises to improve production process and minimize the cost.

We are an intelligent equipment & automation solution integration service provider. We have 4 different business divisions and our manufacturing bases are in Shanghai, Guangdong and Jiangsu province. Our company has a professional foreign trade sales team and an experienced technical support team, the principles of our team work is customer first and fast solution. Our business scope includes NDT Testing Equipment, Acoustic Emission Testing Instruments, Mechanical and Electrical Equipment, Dry Ice Cleaning Machine, Industrial Robot etc.

Our NDT testing division is specialized in the R & D, production, sales and technical application services of Acoustic Emission Testing Instruments, Ultrasonic Flaw Detector, Ultrasonic Thickness Gauge, Sensors, Electronic Measurement Software and Hardware, Our NDT testing products mainly used in Industrial Field (Aerospace, Railway, Automotive, Oil & Gas, Manufacturing, Process Industry ) and Power Generation (Renewable, Nuclear, New Reactors, Advanced Reactors, Research Reactors, Gas Combined, Coal, Cogeneration).

Our mechatronics business division is specialized in the R & D, production, sales and maintenance of Mechanical and Electrical Equipment such as High-speed Terminal Welding Machine, Wire Splitting and Twisting Machine, Reflective Light Laminating Machine, Smart EI Automatic Inserting Machine, EI Automatic Shaping Machine and many other products, they are widely used in Wire & Cable Manufacturing industry and Transformer Manufacturing industry. Which has increased the production efficiency in the industry by 30% and saved various costs by nearly 38%.

Our dry ice cleaning business division is specialized in the design, R&D, production and sales of Dry Ice Cleaning Equipment, it is mainly for the needs of Industrial Non-destructive Cleaning, Mold Cleaning Treatment, Precision Processing and Deburring, Dry Ice Cold Chain and so on, we can provide customers with non-standard Customized Automatic Cleaning Solutions. Our company is committed to building a complete dry ice industry chain and has developed a variety of dry ice cleaning equipment, widely used in Injection Molding, Casting, Rubber, Electronics, Stamping, Welding, Electric Power, Chemicals, Textiles, Printing, Food and Beverage, Medicine, Aerospace and Automobile 4S Shops and other market areas.

Our industrial robot and automation business division mainly offer non-standard robotic system integration service, we have provided various automation solutions to our customers in 3C industry (Computer, Communications, Consumer electronics), Household Appliances, Automotive, Medical, Food & Beverage and other industries, which win the trust and support of customers from all over the world with an excellent reputation.