Induction Sealing Coils
iFoiler cap sealing systems offer interchangeable sealing coils to help you deliver high quality packaging. When you switch from a flat top container to a spouted bottle, easily swap coils without tools. Disconnect the power supply, unscrew a couple thumb screws, pop off a bracket, and swap the Universal Coil for an inFinity tunnel.
Universal Sealing Coil
The universal sealing coil is used in the majority of sealing applications. First innovated by Pillar 30 years ago, for use with flat caps and child-resistant closure (CRC) caps from 15 to 150 mm. The universal coil produces an electromagnetic field above the induction seal to heat the foil, melt the sealant, and ultimately seal the bottle.
The universal sealing coil is the best choice of coil for products which have flat caps. To maximize efficiency, the sealing coil should be angled to the diameter of your product’s cap. When properly adjusted, the indicator line on the coil should be set just past one edge of the cap as the conveyor brings it under the coil. Then, when the bottle exits the sealing coil, the line on the discharge end should be just past the opposite side of the cap. This ensures that the foil is adequately exposed to the electromagnetic field from the sealing coil, ensuring a secure seal.
The universal coil is also capable of sealing child resistant caps. The benefits of CRC caps also create a larger gap between the sealing coil and foil. To optimize sealing CRC caps with a universal coil packagers typically reduce line speeds. Pillar recommends the inFinity Tunnel coil or a higher powered sealer.