Shrink film: POF, 15 microns, 200, 500 and 550 mm

Shrink film on this page is POF shrink film, 15 microns thick, in widths of 200, 500 and 550 mm. The film is clear, so the packed product stays visible. The roll length is 1259 m for 200 mm and 1335 m for 500 mm and 550 mm.

This shrink film is the type used by the shrink wrapping machines in our shop. Before your first order, you name your machine and we confirm that the roll suits it.

Choose the width by the size of the product you pack. Below the product, a table shows the film type, thickness and width range of each machine.

POF shrink film: what it is and how it works

Rolls of clear POF shrink film in several widthsPOF shrink film is a clear polyolefin film that contracts tightly around a product when heated in a shrink tunnel or under the hood of a heat shrink machine. It is centre-folded: a half tube, folded along its length, the form that L-sealers use. The film on this page is 15 microns thick and comes in widths of 200, 500 or 550 mm. Roll length is 1259 m for 200 mm and 1335 m for 500 mm and 550 mm.

Polyolefin shrink film is clear, so the product stays visible under the heat shrink wrap.

Each width is a separate choice on the product page.

Shrink film is stretched during production. When you apply heat, the film contracts and pulls tight around the product. This process keeps dust off the product and holds items together in a group.

Compared with PVC, POF stays flexible in the cold, and it contains no chlorine, so sealing it does not give off the corrosive fumes that PVC shrink film does. PE shrink film is thicker and is used for heavy bundles, such as packs of bottles. POF is used for single products and small groups, such as boxes, cosmetics, books, printed matter and toys.

Polyolefin shrink film shrinks in both directions: along the length as it comes off the roll and across the width. This means it pulls tight on every side of the pack, not just the top and bottom. The amount it shrinks depends on the temperature of the hot air in the tunnel or under the hood. That is why the tunnel or hood temperature is set for the film, not for the product inside.

Once polyolefin shrink film has been shrunk, it cannot be shrunk again. If a pack comes out with a burnt patch, an open seal or a hole, it cannot be fixed by running it through the heat again. The film must be cut off and the product rewrapped with new film.

Machines that use this shrink film

POF shrink film is listed as the film type on every shrink wrapping machine page in our shop. The T5040 takes POF 0.015–0.019 mm thick and up to 570 mm wide, the T4535 POF 15–25 microns and 100–550 mm wide, and AUTOSHRINK POF 0.01–0.03 mm and 200–550 mm wide. The B4255 takes POF rolls up to 250 mm across and 600 mm wide. The 15 micron film and all three widths lie inside the ranges of the T5040, T4535 and AUTOSHRINK.

The F7060 and A450 machines take POF or PVC film, and the V4530 tunnel shrinks POF or PE film that a sealer has closed around the product.

These machines are the B4255, F7060, T5040, T4535, A450, the V4530 tunnel, SHRINKCOMBO and AUTOSHRINK.

Like the B4255, AUTOSHRINK takes rolls up to 250 mm across (its manual). The F7060 and A450 pages give no film thickness.

The V4530 is a tunnel that shrinks POF or PE film after a sealer, such as the A450 in the SHRINKCOMBO, has closed the film around the product. Before your first order, you name your machine in a Get offer or Add to inquiry request on the product card, and we confirm that the roll suits it.

The A450 maker’s manual gives a film thickness range of 0.015 to 0.10 mm, so the 15 micron film is the thinnest it lists for that model. This matches the lowest thickness named on the T5040 and T4535 pages.

The size of the product must also fit the machine, not just the film. The B4255 has a sealing area of 420 × 550 mm and takes products up to 200 mm high. The F7060 has a sealing size of 700 × 600 mm. The T5040 has a sealing area of 500 × 400 mm, and the A450 can pack products where the width plus the height is under 420 mm. For AUTOSHRINK, the largest pack is 500 × 400 × 120 mm, with the width plus height up to 400 mm. If a tunnel is used, check that the wrapped pack fits the tunnel entrance: 450 × 230 mm on the T5040 and 450 × 250 mm on AUTOSHRINK. The V4530 tunnel takes products up to 1400 × 350 × 200 mm.

Film types and sizes for each machine

The table below lists our shrink wrapping machines with the film type, thickness and width given on each machine’s page. Use it to check which shrink film sizes match your machine.

To use the table, first find your machine in the left column. Then compare the film type, thickness and width listed for that machine with the POF shrink film on this page: 15 microns thick, in widths of 200, 500 or 550 mm. If a cell says see the product page, that machine’s page gives no figure for it. For the SHRINKCOMBO, which is the A450 side sealer and the V4530 tunnel sold together, the A450 row decides which film to use, as the tunnel only shrinks film that has already been sealed.

Machine Type Film on its page Film thickness Film or roll width
B4255 chamber machine, seals and shrinks in one place POF see the product page rolls up to 600 mm wide, up to 250 mm across
F7060 2-in-1 hood machine PVC or POF see the product page see the product page
T5040 semi-automatic L-sealer and tunnel POF 0.015–0.019 mm film up to 570 mm
T4535 automatic L-bar sealer and tunnel POF 15–25 microns 100–550 mm
A450 automatic side sealer POF or PVC see the product page see the product page
V4530 shrink tunnel POF or PE see the product page see the product page
SHRINKCOMBO A450 side sealer and V4530 tunnel as A450 and V4530 as A450 as A450
AUTOSHRINK automatic side sealer and tunnel line POF 0.01–0.03 mm 200–550 mm, rolls up to 250 mm across

How to choose shrink film width and thickness

To choose the right film width, measure the largest product you plan to pack: width, height and length. The film must go around the width and the height of the product and leave enough for the seal. The length of the product decides how much film one pack uses.

If the film is too narrow, it will not close around the product or the seal may pull open while the film shrinks. If the film is too wide, you will have more trim, which is film you pay for but do not use. The 200 mm width is for small products, while the 500 mm and 550 mm widths are for larger products or groups. The right width is found by making a test pack on your machine.

The 15 micron film is thin and suits light products with smooth faces. Heavy products or those with sharp corners need a thicker film, which punctures less easily, but only the 15 micron film is sold here. To find out how many packs you get from a roll, divide the roll length, 1259 m for 200 mm or 1335 m for 500 mm and 550 mm, by the film one pack uses. This is the product length plus the margin in front of and behind it for the seal.

When you pack a group of products together, measure the whole group as one block, with the items positioned as they will stand on the machine. The film wraps around the outside of the group, not each product separately.

When working out the film used per pack, always include the height as well as the length. On the A450, the maker’s manual advises leaving a length of film in front of and behind each product of about the product’s height. This means a tall product will use more film than a flat one of the same length. If your products vary a lot in size, using only one film width for all of them often leads to excess trim on small items. In many cases, using the 200 mm film for small products and a wider film for large ones reduces waste and cost.

How shrink film moves through the machine

The machine first seals the film around the product. Sealing time and temperature must match the film: too long burns the knife and the film, too short leaves a weak seal or uncut film.

After sealing, the pack goes into a tunnel or stays under the hood. In a tunnel, the temperature and the belt speed work together and are set to the film. POF shrink film needs a higher tunnel temperature than PVC. The B4255 and F7060 pierce the film with a needle wheel so that air can escape as the film shrinks. If air cannot escape, the seal can open.

With an L-sealer and a tunnel, such as the T5040 or T4535, the product is first enclosed in the film. The L-shaped sealing bar then seals and cuts the film around the product. After sealing, the pack moves onto a conveyor and runs through the tunnel, where hot air causes the film to shrink tightly around the product.

In a chamber or hood machine such as the B4255 or F7060, the seal and the shrink happen in one place. For side sealers such as the A450 or AUTOSHRINK, the machine seals along the side and across the front and back of each product, then a tunnel shrinks the film.

A cold machine needs a longer sealing time for the first packs.

On the F7060, the shrink temperature is set between 100 and 150 °C and the sealing time between 0.4 and 0.6 seconds, depending on the film type and thickness.

For the B4255, the correct sealing time is found by running two or three empty cycles, then increasing the time in small steps until the film seals and cuts properly. The shortest time that gives a clean seal is kept for production. The machine is preheated by lowering and raising the hood two or three times before the first pack.

On the V4530 tunnel, preheat the tunnel before the first pack. Start with the belt speed in the middle of its range, then find the tunnel temperature that shrinks the film at that speed. Once the right temperature is found, write it down for the next time you run the same product. If you need to run the belt faster, the temperature must be raised as well. On the T4535, always place the product in the middle of the conveyor under the sealing arm, set the guide rails to the product width, and watch that the film feeds straight. This keeps the film even on both sides of the pack.

Shrink film faults and their causes

Common faults in shrink film packs include dog ears, holes, wrinkles and ballooned packs. Dog ears are corners of film that stick out, caused by too little heat or too much film around the pack. Holes or burn-through come from too much heat or a belt that runs too slowly. Wrinkles and loose film result from too little heat or a belt that runs too fast.

A ballooned pack or an opened seal means air could not escape during shrinking. Change one setting at a time and check a test pack before a new run.

A narrower film or more heat in the tunnel reduces dog ears.

A weak seal or uncut film is a sign that the sealing time is too short. If the sealing wire smokes, the sealing time is too long for the film, or there is film residue on the wire.

If film residue builds up on the sealing wire or knife, it causes smoke and leads to poor seals. Clean the wire or knife right after sealing, while it is still hot, using a dry cotton cloth. Never scrape a Teflon-coated knife with metal or sharp tools, as this can damage the coating and cause the film to stick to the knife. The B4255, F7060 and A450 manuals all give this instruction.

On the F7060, if the fan is running but the film does not shrink properly, either raise the shrink temperature or make the shrinking time longer. On the A450, when products touch each other on the infeed, they are wrapped together as one pack. To avoid this, leave a gap between products so each is wrapped separately.

On the A450, raising the sealing temperature in one big jump can burn the heating parts (maker’s manual), so raise it step by step and check a pack after each change. If a pack opens on one side only, check that the film is feeding straight before changing the heat. A film that feeds crooked will leave less film on one side, and that side is likely to pull open during shrinking. When a fault appears, keep one faulty pack and write down the settings it was made with. After each change, compare the next pack with the faulty one to see which adjustment fixed the problem.

Storing shrink film rolls

Store shrink film rolls in their box in a dry room, away from sunlight, heaters and hot machines. Do not press or dent the film edges, as a damaged edge tears or feeds unevenly. Let rolls from a cold store reach room temperature before use. Always use the oldest rolls first.

Heat can start the shrink before the film is used.

Keep the boxes of film rolls off the floor, on a shelf or a pallet, so that floor water or cleaning water cannot reach them.

When carrying a roll, avoid knocking its edges and never drop it on an edge. Before putting a roll on the machine, check both edges for damage. If the outer turn is damaged, cut it away rather than feeding it into the machine. After a shift, put a started roll back into its box or cover it, as dust on the film will end up inside the clear pack. Write the delivery date on each box so the oldest rolls are easy to find and use first.

What affects the cost per pack

The cost of shrink film per pack depends on the width you choose, the amount of film each pack uses and the trim the machine cuts off. The price for each width is shown on the product card.

A narrower film for small products uses less film per pack, but if the width is only just enough, you risk open seals and packs that have to be wrapped again.

For a quote, use Get offer, or use Add to inquiry to collect several products into one request.

On side sealers, the trimmed film is wound up as waste: the A450 uses a waste film wheel and AUTOSHRINK has motorised scrap recovery. The size of the roll of trim at the end of a shift shows how much film is wasted. By checking this, you can see if a narrower film would save material or if the settings can be improved to reduce trim.

The F7060 manual asks for as little film around the pack as possible. To find the real cost per pack, count the number of packs made from one full roll, including test packs. Divide the roll length by this number to get the real film used per pack. This gives a more accurate cost than just using the product length and margin, as it includes any film lost to setup and trimming.

Checklist before ordering shrink film

Before ordering shrink film, check the machine and the film range in the table above. Calculate how many rolls you need based on the packs per day and the film each pack uses.

Plan storage for the rolls in a dry and cool place. Shrink film here is for products and small groups. For whole pallets, use stretch wrap, which is in its own category.

Measure the smallest and largest product you pack, and make a test pack to confirm the right film width. This helps you avoid excess trim or failed seals.

Before you order, check that your product fits within the pack size given on your machine’s page. If your machine uses a tunnel, also check that the wrapped pack will pass through the tunnel entrance. Decide whether one film width is enough for all your products or if you need two widths for small and large items.

Keep a settings sheet for each product, listing the film width, sealing time, sealing temperature and, for tunnels, the tunnel temperature and belt speed. This lets the next run start with the correct settings. Order the next rolls by the number of packs the first roll gave, test packs included. Keep a spare roll of each width you use, so production does not stop if a roll runs out during a shift.

Questions about shrink film

Which machines in your shop take this shrink film?

Every shrink wrapping machine in our shop names POF film on its page. The 15 micron film and all three widths lie inside the film ranges of the T5040, T4535 and AUTOSHRINK; name your machine and we confirm that the roll suits it before the first order.

Which shrink film width should I order?

Choose the width based on your product size. Use 200 mm for small products and 500 or 550 mm for larger items or groups. Measure your product and allow room for the seal.

How many packs can I make from one roll?

Divide the roll length by the film one pack uses, which is the product length plus the margin in front of and behind it for the seal. The roll is 1259 m for 200 mm width and 1335 m for 500 mm and 550 mm widths.

What does 15 microns mean for shrink film?

15 microns means the film is 0.015 mm thick. This is the lowest thickness listed for the T5040 and T4535 machines and is suitable for light products with smooth faces.