THE LAB at Ambrell tested a cap sealing application for a client. It involved sealing a 1.5” (38.1 mm) diameter cap with foil to a plastic bottle within one second. The target temperature for this cap sealing application was 250-300 ºF (121-149 ºC). THE LAB determined that an EASYHEAT^TM 2 kW, 150-400 kHz induction heating power supply with a single turn helical coil of rectangular tube would meet the requirements of the client. 

In the latest application video from THE LAB at Ambrell, a cap sealing application is tested. Cap sealing with induction is a non-contact heating method that welds the foil laminate to the lip of the container, commonly plastic or glass. In this case, the client had been using a cap sealing device that wasn't delivering enough power for this large plastic container, so the heating wasn't fast enough to meet their throughput requirements. Consequently, they turned to THE LAB for a proper induction solution.

A company from the food industry came to THE LAB at Ambrell to see if induction might be a fit for their cap sealing (bonding) application. The application involved heating aluminum foil inside a plastic bottle. Induction's speed and repeatability were of particular interest to the client. Induction is an especially good fit for high volume production applications like this cap sealing application, which we'll discuss again later in this post. 

A client in the beverage industry needed to heat aluminum caps for a cap sealing application. The application involved reusable caps on aluminum cans. THE LAB at Ambrell determined that an EKOHEAT^® 45 kW, 50-150 kHz induction heating system equipped with a custom coil and remote workhead would work well for this heating application.