Packaging Leak Test

Compression gauge
Doypack

Our seal strength testers are designed to ensure the strength and integrity of your flexible packaging. Made in France.

  • COFRAC
  • Made in France
  • Dedicated After sale
  • UAgri-food
  • UPharmaceutical
  • UCosmetics
  • UChemistry
  • UFlexible packaging

CompressPack

Our Doypack Compression Tester

The CompressPack is a doypack crusher designed to test the compressive strength and guarantee the quality of welds on a variety of flexible packaging materials, including doypacks, pouches and tubes. Thanks to its advanced features, such as cyclic, manual and explosion testing, it ensures fast, efficient validation in industrial environments. This equipment also enables optimized management of data traceability, with export of results for improved compliance analysis.

  • EIntuitive and user-friendly touchscreen interface
  • ETests variés : résistance, éclatement, écrase doypack
  • ETraçabilité avancée : gestion des lots, identification utilisateur
  • EDetachable control unit for greater flexibility

Specifications

Technical specifications according to selected capacity

↔ Scroll down to see all the models
Specifications L75 L190 L300 L1600 L3000
Minimum force (daN) 2 6 10 50 100
Min. pressure (bar) 0,2 0,2 0,2 0,2 0,2
Standard force (daN) 75 190 300 1 600 3000
Standard pressure (bar) 6 6 6 6 6
Maximum force (daN) 100 250 400 2 100 4 000
Maximum pressure (bar) 8 8 8 8 8
External dimensions (mm) 570×460×650 570×460×650 570×460×693 570×460×727 546×398×710
Maximum sample size (mm) 340×270×185 340×270×180 340×270×160 340×270×120 340×270×110

Feature details

Different types of tests

The resistance test

Perform a stress test by controlling the rise and fall of the pneumatic cylinder to assess the strength of your doypacks.

Cyclic testing

Cycle your packaging to test its integrity and resistance.

The manual test / internal pressure test

Follow these step-by-step instructions to facilitate internal measurements and ensure a reliable and accurate test.

The explosion test

Detect the bursting point of packaging by performing a burst strength test.

The customized test

CompressPack can be configured with a customized program, tailored to specific customer requirements.

The staircase test

Carry out development and qualification testing to determine a product’s compliance values.

Options & Connectivity

Options and Services

Printer

Print test results in real time using the SP743 thermal printer.

CFR 21

Compliance with regulatory standards for the pharmaceutical industry (21 CFR Part 11).

Calibration Kit

Measures the internal pressure of a doypack when it is compressed by the compression tester.

On--site installation

Comprehensive installation and commissioning services at your production site.

User training

Comprehensive training on equipment operation and best testing practices.

Qualification

Equipment calibration and qualification services to ensure metrological compliance.

Business Sectors

Our Main Areas of Expertise

Food & Beverage & Packaging

Stress testing of seams on doypack bags, soup pouches, and pouches for purees and compotes. Leak testing of food packaging during production.

Pharmaceutical & Medical

Verification of the integrity of medication pouches, IV bags, and sterile packaging. CFR 21 Part 11 compliance available.

Cosmetics & Hygiene

Inspection of welds on mask pouches, cosmetic tubes, and single-use sachets. Cyclic tests to validate sealing parameters.

Chemistry & Detergents

Testing the strength of flexible packaging for chemicals, detergents, and household products. Burst test up to 4 000 daN.

Pet Food & Animal Nutrition

Crush and burst tests on animal feed doypacks. Inspection of weld strength on the production line.

R&D & Laboratories

Qualification of sealing parameters, product development, and characterization of welds according to customized protocols.

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Note

Our compression meters are compatible with all types of flexible packaging. Please feel free to contact us to discuss your specific needs.

For any special requests, our team of technicians will conduct a project analysis to offer you the best value for your money.

Applications & Industries

Doypack Compression Tester  : Applications and Industries

Inspecting the strength of welds and the integrity of flexible packaging is a requirement common to many industrial sectors. Whether it’s ensuring the seal integrity of a food pouch, the safety of a pharmaceutical sachet, or the durability of a cosmetic doypack, the CompressPack adapts to the specific requirements of each production environment.

Sector 01

Food industry

In the food industry, the strength of welds is a fundamental food safety parameter. A poorly sealed doypack can break the cold chain, cause contamination, or compromise the best-by date. Conversely, a weld that is too weak may fail during transport or handling.

CompressPack allows you to define and monitor the acceptable resistance ranges for each packaging SKU. The acceptance limit mode instantly alerts the operator to any measurement outside the tolerance range, allowing the operator to take action without interrupting production.

In the pharmaceutical industry, testing the seal integrity of flexible packaging is a critical step in the packaging process. A bag that is not properly sealed compromises the sterility of the product and can lead to contamination ; a defective seal could result in a costly product recall.

CompressPack meets the regulatory requirements for full traceability through batch-based results management and user identification. The CFR 21 option ensures compliance with pharmaceutical industry regulations (21 CFR Part 11). Each measurement is time-stamped, exportable, and can be integrated into your quality management systems.

Sector 02

Pharmaceutical industry

Sector 03

Cosmetic industry

The cosmetics industry is one of the most demanding sectors when it comes to seal repeatability. Cream tubes, mask sachets, serum pouches : each flexible container has its own strength requirements, and even the slightest deviation during production can lead to leaks or non-conformities.

Our compression testers allow you to accurately measure the compressive strength of all your flexible packaging. For high-speed production lines, the CompressPack ensures optimal repeatability thanks to its automatic cyclic tests. It integrates easily into your quality control processes—whether at the start, during, or at the end of production.

In the chemical and industrial packaging sectors, the strength of welds is a fundamental safety parameter. Improperly sealed flexible packaging can cause chemical leaks, which are hazardous to the environment and to workers ; conversely, rigorous inspection ensures the integrity of the packaging throughout the supply chain.

The CompressPack is used at several stages : validation of welding parameters at the start of production, in-line quality control, and qualification of sealing equipment. Robust and precise, it is suitable for flexible packaging with compression forces ranging from a few daN up to 4 000 daN.

Sector 04

Chemical Industry & Packaging

Frequently Asked Questions

Frequently asked questions about the Doypack Compressiometer

01

What is the Doypack Crush Tool, and what is it used for ?

The Doypack Crush Tester is a device designed to test the strength of doypack seals by applying compressive force. It allows for the assessment of weld quality and the detection of any leaks.

02

What are some other names for a Doypack Crush ?

This device is also known as a weld strength tester, a compression press for doypacks or a crush tester for flexible packaging.

03

What types of packaging can be tested with this device ?

The Doypack Crush Tester is primarily designed to test doypacks, but it can also be used for other flexible packaging, such as sealed plastic pouches, liquid pouches, and certain types of flexible aluminum packaging.

04

In which industry are they used ?

The device is widely used in the food, pharmaceutical, cosmetics and chemical industries, in particular to guarantee the tightness and robustness of flexible packaging.

05

What kind of maintenance does this device require ?

Maintenance is minimal< 1 >: simply clean the test surfaces after use, check the condition of the sensors, and ensure that the test pressure is calibrated periodically to guarantee accurate measurements.

06

Is this device suitable for use in a production line ?

The Doypack Crush Tester is primarily designed for laboratory testing or quality control, but it can be integrated into certain production lines for spot checks.