PET Strapping Roll Replacement Guide for Warehouse Buyers

A replacement PET strapping roll is delivered that is the correct colour and correct band width. The coil will not "seat" on the dispenser when the operator attempts to load it. The other replacement fits the reel but fails to last anywhere near as long as the original. Both issues can begin with an order specification that specifies the band but not the completed roll.

The first step in replacing a roll for warehouse buyers and packaging supervisors is three records: one for the old item, one for the equipment that the roll goes on and one for the amount of strap used for the station. Those records combined reveal what data a supplier can change and what should remain constant without causing any other shift to occur.

Using reliable records, reconstruct the Old Roll.

Look through the last roll label and compare to the latest purchase order or supplier data sheet. Check material, grade number, band width and thickness, surface finish and length marked. If more than one PET grade is applied onsite, indicate which station made the roll. A loose coil from a common stockroom may appear just like the one that you're replacing.

Photograph the entire face of the roll and side profile with the roll off the equipment and anchored. Label and the exposed core. If a roll is only partially used, it can be used to verify the band and core dimensions. Do so using supplier documentation or by using an unused coil to determine the outside diameter and length of a full roll.

See what information on the last order pertains to the strap as opposed to the coil. The numbers next to the core description could be the inside diameter or width. Please request the supplier to clearly specify each dimension on the replacement quotation.

Do not mix the Dispenser Fit with the Band Size.

Use documentation from the dispenser/machine as a starting point. Note the minimum inside diameter, clear width across the roll and the largest outside diameter of a full roll. It is the inside diameter of the core that determines how the roll will seat on the hub. The diameter and width of the face are dependent on the full coil and whether or not it will pass the other parts and fit between the supports.

Check the unwind direction that is approved and the method of securing the coil. When the same item is being used to provide two or more stations, be sure to check each of the models before assuming that a roll that fits one will fit the other. Yalan provides custom dimensions, lengths and core sizes of strapping. When limited space is available, or the replacement core is different than the existing core, request a roll drawing or a dimensioned description.

If a dispenser supports multiple roll type, choose the roll type desired for the warehouse. Replenishment can be easily made from a common roll between compatible stations. Even if a station has a greater clearance, it may still be necessary to make a separate roll at a station where the loading is different.

Select the Roll length around changeovers.

If a longer roll can be used and reliably fed into the station, changeovers can be reduced. Use the amount of strap that is used in a regular shift. Allow for length used in full loops - to make the joint. Measure on a representative sample of load, don't extrapolate from the smallest carton or shortest pallet loop.

Properly differentiate between planned roll length and usable output. When estimating the number of bundles/pallets which a coil will cover, include any loss because of discarding a length at each change. In a package mix, compare the number of candidate rolls for the same package mix and only count the packages that are accepted. This allows buyers to determine if it's worth implementing a roll with more stations or if adding interruptions to the station is worth it for adding inventory.

Plan: differentiate between number of rolls required and number of changes during the shift. If the station begins with a full roll, the initial roll is already set up. Write the starting balance if the shift is started with an opened coil.

Match Grade to the Way the Roll is Used

The PET hand strapping range offered by Yalan is designed for hand strapping operations for the bundling and securing of pallets. For a hand station, check the dispenser, tensioning tool and closure of the approved package. Test to see if the new coil fits in the space and can be accessed and replaced. A roll may meet the band specification and be awkward for the manner in which the bench is set up.

Yalan's PET machine strapping is especially developed for automatic or semi-automatic equipment that is compatible with Yalan. One example is the use of its orange PET machine strapping for repeated production. Discuss with the machine manufacturer the strap limits and roll format. When ordering a repeat roll, tell Yalan about the surface finish; on the strapping range this is known as extrusion and embossing equipment.

Bulk Change Approval: One Full Roll before Bulk Change.

Use the sample label and dimensions to compare to replacement brief. Follow equipment procedure to load and thread the entire coil with responsible operator. Look at how it relaxes when used normally and inspect a sample of packages that have been completed with an approved closure. Re-check after stop/changeover, or later in the coil where unwind conditions may be different from the beginning of the coil.

On the successful roll update the stock record with the supplier's item ref, the stations approved to use it and the quantity per case. Retain photographs with item record for future reference. If the new roll is replacing the existing Purchase Code, item reference should be kept together. If you need a PET roll sample, please provide the equipment type, old roll label, full coil specifications and material consumption. That provides the supplier with sufficient information to make a replacement suggestion the warehouse can look at.

Conclusion

If the band fits the package requirements, it fits on the station and is a suitable length to work with, the PET strapping roll replacement is ready for bulk ordering. Note those attributes under one approved item reference for the next purchase to be made from a specification, as opposed to a photo or a color description.

FAQ

Q1. Can PET rolls of the same band width be interchanged?

Look for the size, thickness, and grade, and the core and full coil size. Once equipment is needed to be replaced, ensure that it is approved on the equipment before ordering it in bulk.

Q2. Is it possible to measure a partially used coil and then order a replacement coil?

Use it to take measurements of core and band, if they are present. See the original label, supplier data or an unopened roll for the complete answer to the question: how wide in diameter is the roll of paper and how long is the roll of paper?

Q3. Is it possible to order a longer roll, using the same core?

Ensure to consult Yalan about the combination you intend to use. Test the dispenser clearance and handling to ensure that the entire coil fits.

Q4. If I change my supplier do I need to keep the old roll label?

Yes, attach it to the replacement item record. It can serve as a reference in case a subsequent order is the same description, but arrives in another roll format.

Q5. What if a roll that is full rolls well, but rolls poorly when it gets near the end?

Make a note of time of fault initiation and check coil and feed setup with responsible operator. Before changing the specification compare the behavior with an approved roll.