Check your sealing coil alignment for more consistent sealing

One of the most critical elements with induction sealing is ensuring proper sealing coil alignment because the design of the coil itself. Here are some quick checks you can do to ensure that your sealing head is properly aligned.

If you have a dedicated flat coil it must be parallel with respect to the conveyor. That includes front to back as well as side to side. Lower the sealing coil to approximately 1/8-inch from the top of the cap. Then with a bottle on each end of the sealing coil, find the center marks on the ends of the coil. Adjust the sealing coil so the center marks on the end are aligned with the center of the cap.

If you have a universal coil, after you adjust the center-lines, you will need to angle the coil. Simply skew the coil on its center point until the black centerline is approximately - inch outside the edge of the bottle. This is done to seal larger size caps. You may also want to adjust the side rails of your conveyor to ensure a repetitive flow of bottles.

If you have a channel style coil you will have to ensure the sealing coil is parallel with respect to the conveyor. Then adjust your conveyor rails to maintain a repetitive flow of bottles. Lower the sealing head until the black marks on the end of the channel are even with the land surface of the bottle. Then adjust the coil so the travel of the bottles are down the center of the coil and not off to one side.

Perform these checks on a regular basis to ensure and even improve your sealing consistency.

If you're not sure what style of sealing coil you have call the Pillar Technologies Service Department at 262-912-7200 and we will be glad to help you.

E-mail your questions to service@pillartech.com, or call (888) PILLAR-6 (888-745-5276) x309.