Automatic EI-50 Lamination Stacking Machine for LED Driver and Lighting Transformer Core Assembly, ±0.1 mm Accuracy, 250 Stacks/Min, PLC Control, CE

Automatic EI-50 Lamination Stacking Machine for LED Driver and Lighting Transformer Core Assembly

The EI-50 automatic lamination stacking machine inserts E & I silicon steel laminations into transformer coil bobbins under PLC control. Built for 10-50 VA cores used in LED drivers and lighting transformers, it holds ±0.1 mm stacking accuracy at speeds up to 250 stacks per minute, supplying the consistent, low-loss cores that lighting power supplies demand for stable output and long service life.

Why Lighting Transformers Punish a Bad Core

LED driver and lighting transformers work long hours in enclosed fixtures where heat has nowhere to go. Excess core loss from loose laminations, burrs or uneven stacking becomes fixture heat, flicker and premature driver failure - and it shows up in the field, not on the production floor. Because lighting products are shipped by the millions, even a small percentage of core-related returns erodes the margin of the entire program. The EI-50 stacking machine controls lamination placement, compression and count on every cycle, so each core leaves the line with the same low-loss, low-noise stack quality.

Key Specifications

Stack Quality That Shows in the Fixture

✅ Lower No-Load Loss – ±0.1 mm stacking accuracy and gentle lamination handling preserve the insulation coating, cutting interlaminar eddy currents that would otherwise become heat inside the fixture.

✅ Quiet Operation – Uniform stack compression eliminates loose sections, so cores do not buzz audibly in enclosed luminaires.

✅ Consistent Output Characteristics – A stable effective air gap keeps magnetizing current and secondary voltage uniform from batch to batch, protecting downstream driver calibration.

✅ Exact Lamination Count – The PLC counts every sheet, so every core matches the specified stack height and impedance design.

✅ High-Volume Ready – Up to 250 stacks per minute matches the pace of high-volume lighting production with one operator.

✅ Automatic Jam Detection – The PLC stops the cycle on a misfeed before material or tooling is damaged.

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

Applications

Sized for 10-50 VA cores, the EI-50 suits manufacturers of LED driver transformers, electronic ballast and lighting power transformers, small isolation transformers, doorbell and signaling transformers, and general-purpose control transformers for household and commercial lighting systems. Both cardboard and plastic bobbins are supported, and the machine works as a standalone station or inside a larger winding and assembly line.

Why Choose Us?

We are a direct manufacturer offering competitive factory pricing and CE certified quality assurance. Our equipment has served globally renowned customers including GE Vernova and Eaton (USA) as well as leading enterprises such as CATL and Chint Electric, and is exported to more than 20 countries and regions. Delivery within 1-15 working days, professional after-sales technical support, and a 12-month warranty. The full EI series from EI-19 to EI-300 is available to match your production requirements.