Shrink Packaging System Replacement Parts

Shrink packaging systems have a shrink chamber for sealing and shrinking materials around products. These all-in-one systems seal once the lid is closed. When the seal cycle is complete, the blower fan engages and heats the shrink film for shrinking. Once the shrinking is complete, the lid opens, and the product can be removed.

With several working parts that engage and disengage throughout the operating cycle, with enough use, some will wear out. Having spare parts on hand and ready to be replaced can play a crucial role in the longevity of your shrink packaging system. Maintaining wearable parts also reduces costly downtime and lowers maintenance costs for other parts.

Wearable parts are important to have on hand, and non-wearable items can wear out over time, so access to them is critical. In this post, we will discuss some commonly ordered shrink packaging system parts. The names may be different depending on the brand of machine you are working on.

If you are already experiencing issues with your shrink packaging system, try troubleshooting using our handy guide.

WEARABLE PARTS

Now, let’s examine the different parts of the shrink packaging system. First, let’s explore the “wearable” parts. These parts should be kept on hand and replaced when they show signs of wearing out.

Band Ribbon—The band ribbon is the main sealing component for centerfold shrink film. It is considered a wearable item and should be cleaned daily after usage. Unplug the machine and wipe down the band ribbon after usage to remove film buildup.

Seal Pad – This is the rubber cushion opposite the band ribbon. Teflon tape goes over the seal pad to protect it, and it should be replaced when showing wear to increase its life.

Teflon Tape – Used to cover the seal pad and protect it from the hot band ribbon. The Teflon tape is the most wearable part of the machine. Once burns or tears are noticed, it should be replaced.

Compensator Blocks – These blocks are located at each end of the band ribbon and hold it in place.  

Transit Channel – This is the groove where the band ribbon is held in place. Over time, the channel will be unable to hold the band ribbon in place during the sealing process. It is considered a wearable item and will need to be replaced every third to fifth band ribbon.

Fuses – Fuses keep excessive current from damaging the machine. They are a commonly replaced wearable item. Incoming power surges can cause fuses to blow out and must be replaced. If not replaced, they will shut down production.

Torsion Bar – The torsion bar opens the chamber lid after completing a seal. The torsion bar is used every time the lid is opened and closed. It will need to be replaced after enough wear.

Brass Corner Block—The block sits in the bend of the L bar sealer. It is used with the transit channel to hold the band ribbon in place. If enough film builds up, it will need to be replaced over time.

NON-WEARABLE PARTS

Non-wearable parts last longer but can wear out with usage or become damaged by external factors. Some non-wearable parts are easy to replace with minimal effort. Other parts that may not be listed here can take longer to replace and be more difficult to access.

Contactors – The contactors engage and disengage on different cycles during the heating and sealing process. There are at least two, if not three, in most shrink packaging systems. They can be changed quickly when needed.

Fan Blade – The fan blade engages during the shrinking process. Items can fall through the holding basket and chip or break the blade.

Fan Motor – Used to rotate the fan blade in the shrink chamber. This item takes longer to replace, but rarely goes out.

Heater Bank – This is used for heating the chamber. The heater bank is essential for proper shrinking. It takes longer to replace, but does not go out often.

Temperature Control – Used to adjust temperature settings for proper shrinking. It is easily replaced and important to maintain consistent shrink rates.

Transformer—This is the only one found in the machine and only needs to be replaced if electrical issues arise or an improper power supply is used.

Power Cords — Can get run over or accidentally cut and need replacing. They are easy to access and replace if needed.

Conclusion

When purchasing a shrink packaging system, it is essential to have access to replacement parts. These parts can prevent stoppages in production. You can rely on U.S. Packaging & Wrapping when purchasing machines and parts. We can also help troubleshoot your machine if you purchase it from us. For mor information, visit our website at uspackagingandwrapping.com or contact us at 1-800-441-5090.