Static charge is not only an electronics assembly problem. In processes that handle plastic film, paper, laminates, labels, foils, or other moving webs, static can cause sticking, dust attraction, misfeeding, operator shocks, and quality problems. These applications often need ionization because grounding alone cannot remove charge from insulating materials.
Why moving material builds charge
When two surfaces contact and separate, charge can transfer from one to the other. Rollers, unwind stands, slitting machines, conveyors, and packaging lines create many such contact points. If the material is an insulator, the charge remains on the surface and may increase as speed rises.
How an AC static eliminator helps
An ionizing bar produces ions of both polarities near the charged surface. The surface attracts the opposite polarity ions and neutralizes the charge. Marvel Products’ Static Eliminator AC Bar is designed for charge elimination on moving surfaces and is supported by a high-voltage power source.
Installation points to consider
- Place the bar near the charged surface and after the point where static is generated.
- Keep the operating distance within the recommended range.
- Clean the emitters periodically because dust reduces ion output.
- Check whether charge is actually reduced with a static charge meter.
For related products, see Marvel Products’ Static Eliminators category. A correctly placed ionizing bar can improve material flow, reduce contamination, and make the process easier to control.