Oxipack leak detection BV

Wilgenkade 17, 3992 LL Houten

Hall map

interpack 2017 hall map (Hall 5): stand A35

Fairground map

interpack 2017 fairground map: Hall 5


Serge Smit

+31 6 39431175


Visit us

Hall 5 / A35



08:00 - 09:00

New inline non destructive leak detection solution (flexible packages with fluid)

Our range of products

Product categories

  • 01  Packaging machines and devices
  • 01.05  Inspection and control
  • 01.05.02  Leackage test systems/devices

Our products

Product category: Leackage test systems/devices

Inline leak detection for flexible pouches filled with fluids

Inline leak detection of flexible liquid pouches at Interpack 2017

Are you familiar with flexible pouches containing juice or squeezed fruits, sometimes having a spout? These are also used to contain liquid snacks for cat or dog. Until recently it was not possible to test this kind of pouches for micro-leaks. Now Oxipack has devised a solution. The demo version can test 60 pouches per minute inline. This scoop will be presented at the Interpack packaging exhibition in Düsseldorf, from 4-10 May.

Especially for Interpack a small demo version is designed. It is the first leak detector in the world that can fully automatically  test 60 flexible fluid packages per minute for leaks inline. Serge Smit, managing director of Oxipack, explains the concept behind this type of leak detection. "This flexible packaging does not contain detection gasses. So leak detection methods based on gas detection will not work. Next, these  pouches contain almost no air, only juice, fruit of fluid. There is no 'headspace'  that is normally used to measure air pressure differences. For this reason, Oxipack has developed a revolutionary new leak testing method to test his kind of flexible liquids packaging. The demo version shows that it is also possible to check 100% of the packaging  automatically (inline).

Leak detection 2.0
At the question if the branches needs this kind of developments, Smit looks quite amazed. "Food manufacturers have been searching for years to find a solution! There is a tremendous need. Last week a food manufacturer overheard we were preparing this demo for the exhibition. He immediately made an appointment to see the test setup for himself. And another large manufacturer informed if it is possible to test sauces and soups for airtightness as well. The answer is: yes, indeed! So this is truly an example of leak detection 2.0.”
Oxipack invented yet another revolutionary measurement process to accomplish this. Smit: "No longer the pressure change is measured in the immediate area of the packaging, but the pressure in the package itself. If this pressure does change, it must be a result of leaking fluid or product. And that can be measured. We can do this in open space, without using an enclosed gauge. That’s why it can be done so fast.”

The demo machine will show that it is possible to test flexible liquid pouches  for leaks. Within a compilation of less than three yards, leaky pouches are detected at high speed. Pouches enter and leave the detection unit, dashing to and from in a U-shape. Already the capacity amounts to 60 packs per minute. In an actual arrangement integrated into the packaging line, much higher speeds are feasible, such as 120 per minute.

Highly accurate leak detection
The measurement process is fully automatic, fast and very precise as well. Oxipack can detect tiny leaks up to 10-50 microns, upward of one hundredth of a millimeter. The accuracy of the measurements depend upon the viscosity of the liquid content. Test cycles have proved micro leaks up till 10 microns can be detected when the pouches contain water. During the Interpack trade show, customized calibrated leak demo’s will be used. Fair visitors can see for themselves how these leaky containers are detected and ejected at full speed.

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Product category: Leackage test systems/devices

Testing flexible packaging for leaks

The Stationary Leak Tester has been specially developed for off-line sample testing of flexible packaging. Using this equipment you can manually test packaging that has small amounts of air in it or packaging that contains inert gas. As modified atmosphere packaging (MAP) with a protective atmosphere. These could be packets of grated cheese, nuts, part-cooked bread, coffee pods or pet food.

By carrying out systematic tests for leaks, you minimise the percentage of leaking packaging, prevent complaints about poorly sealed packets and reduce food wastage.

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Product category: Leackage test systems/devices

Testing rigid packaging

How do you test airtight packaging that has a rigid form for leaks? Packaging with a solid, rigid form cannot be tested with the Stationary Leak Tester, the membranes would not fit properly. For this type of rigid packaging that contains air or an inert gas, we have developed a different kind of leak tester that snugly envelopes the shape of the packaging as closely as possible.

What types of packaging?
This model uses specially made to measure mould inserts to test for leaks on a range of rigid products. In this way Nespresso coffee cups, blister packs of tablets, coffee pods or ready meal trays can be simply tested to check if they are airtight.

Even cans of milk powder can be tested
For applications involving, for example, cans of milk powder, a special Can Leak Tester has been developed with a rubber membrane. This membrane exactly mirrors the shape of the can.

The Can Leak Tester also uses pressure differences to test for leaks. With this model a bell jar containing a flexible rubber membrane in the same shape as the can drops down over the packaging. A vacuum is then created in the surrounding space. If the can has a leak this is shown by a change in the pressure in the measuring bell jar. The packaging itself remains intact.


  • For random sample testing.
  • Tests rigid packaging that contains a set quantity of air or inert gas (MAP).
  • The measurement chamber can be precisely customised using various moulds and/or membranes for a variety of packaging.
  • The robust leak tester is ideally suited to testing in an industrial environment.
  • Within thirty seconds a pressure difference of 700 mbar is created. By doing this it is possible to detect leaks right down to 10 µm.
  • Simple to operate: a green light indicates if the packaging is sound and a red light indicates a leak.

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Product category: Leackage test systems/devices

Testing vacuum packed food for leaks

A microscopically small leak in a vacuum package is hard to trace. In some cases micro leaks can only be detected by queezing the package 24 to 48 hours after packaging. Then they feel soft. But Oxipack provides a quick alternative solution!

How it used to go (and sometimes still does)
To eliminate possible leaks in the vacuum packaging, rows of pallets of packaged products often were stored temporarily one or two days and nights. After which a selection was checked manually to feel if there were any soft bags.
This postponed testing represents a substantial production risks. If the person who verifies finds too many leaky packages the consequence might be that all packaging produced in the meantime has to be rejected. In many cases these will then have to be cut open and repacked again if possible, or be discarded as waste. 

Immediately after sealing
At the time we developed our leak detection method for the famous Dutch coffee roaster Douwe Egberts. This invention made it possible to determine whether a package leaks or not – shortly after the vacuuming and sealing. Which is long before anyone might observe this by squeezing the packages.

This method is further developed by Oxipack, resulting in the very reliably operating Vacuum Leak Tester.  Now you can test samples for leaks regularly with this device, right after packaging. As a result the temporary storage can be greatly reduced or even become superfluous. This contributes to a tight Lean Six Sigma supply chain management.


  • The Vacuum Leak Tester has been operating for years now in the coffee industry without any problems.
  • For random sample testing.
  • Testing of vacuum packaging that contains a slight amount of air or inert gas in between the product, for example ground coffee.
  • The measuring chamber and the membrane can be made to precisely fit the packaging that needs to be tested.
  • Within thirty seconds a pressure difference of 700 mbar is created. By doing this it is possible to detect leaks right down to less than > 10 µm.
  • Simple to operate: a green light indicates if the packaging is sound and a red light indicates a leak.

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Product category: Leackage test systems/devices

Inline leak detection

Are you looking for a completely automated inline leak detection method? Oxipack can develop inline leak test systems that can be fully integrated into the packaging production line. Thus for instance 1 out of 60 packages can be tested for a leak in a production line that produces 120 packages per minute.

Full testing of packaging can be carried out as well. We have developed an inline application that allows you to test 60 packages a minute.

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About us

Company details

Oxipack is a specialist in non-destructive leak detection in airtight or vacuum packaging for the food and pharmaceutical industries. With unique, accurate leak test equipment and advise, Oxipack offers support to the packaging industry all around the world. Packaging companies from all over Europe and far beyond, get in touch with Oxipack for efficient leak detection solutions.

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Company data

Target groups
  • Food
  • Confectionery products
  • Bakery products
  • Beverages
  • Pharmaceuticals