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Metropack is a French testing laboratory providing technical assistance to the packaging industry and its users.

The company specialises in physical, mechanical and atmospheric restraint testing to help its customers prevent damage and avoid overpacking of their goods during the distribution cycle.

Metropack's needs and objectives

As the industry has progressed, the company has strived to keep up with new developments and challenges posed by the new landscape of globalisation and international transport.

Following this line of innovation and attention to new trends, Metropack has detected the need to improve its packaging testing laboratory. In particular, the company seeks to simulate more realistically the vibrations experienced by packaging during the distribution cycle.

Metropack came to the conclusion that by purchasing a new packaging testing machine it could offer added value to its customers.

The solution for Metropack: an ad hoc Vertical Vibration System

After analyzing Metropack's needs and requirements, it was decided to design a new Vertical Vibration System.

Among the main features, the system includes an actuator with a stroke of up to 200 mm and control software capable of simulating:

  • Recorded random signals.
  • Random vibrations according to international standards: ISTA, ASTM, ISO, IEC and Mil Std, as well as customised test procedures.
  • Capable of generating non-Gaussian, non-stationary random vibrations.
  • Random-on-Random.
  • Shock-on-Random.
  • Sine-on-Random
  • Vehicle trip synthesiser software module: just choose the type of truck and the roughness of the road.
  • Shocks: replication of classical shocks and pulses (half-sine, IEC61373).

The installation of the machine took place at Metropack's facilities in Reims. The technical team travelled to the facilities to carry out the commissioning and training in the operation of the equipment.


In the words of Jérôme Pellot, co-founder of the company: "It was apleasure to welcome the technical team from Safe Load Testing Technologies for the commissioning of our new vibration testing system. This machine has an actuator with a stroke of up to 20 cm and a DC accelerometer that will allow us to work at very low frequencies. It will also allow non-Gaussian signals to be injected.Therefore, it will be possible to simulate more realistically the vibrations that the packaging undergoes throughout the distribution cycle".

During transport and distribution, packages are subjected to vibrations. By performing vibration tests, it is possible to check the resistance of the packaging to these constraints. They also offer the possibility to compare the difference in behaviour of various packaging solutions: qualitatively through classical tests or quantitatively through test instrumentation. Indeed, packaging can, through its design, amplify or dampen the movements to which it is subjected.

Thanks to this Vertical Vibration System, Metropack will be able to perform vibration tests, both low frequency and random.

Fixed low-frequency vibration tests are carried out on a mechanical vibration table that recreates the strongest transport frequencies.

Low frequency vibration systems only recreate a part of the transport vibration spectrum. For this reason, it is interesting to perform some random vibration tests as well.

Road, rail and air transport produce random vibrations. This is a combination of frequencies and amplitudes that vary constantly over time. Random vibration tests make it possible to recreate the vibrations encountered in the transport process. These tests are carried out on electrodynamic equipment with a pilot system.

The outlook for packaging testing companies such as Metropack

The packaging testing industry is booming due to globalisation, increasing international shipments and the huge demand for packaging solutions that protect goods while complying with major international standards.

In addition, companies' concern for sustainability is contributing to increased research into new materials that enable the production of recyclable or biodegradable packaging.

With the purchase of this new Vertical Vibration System, Metropack is one step ahead of its competitors, presenting its customers with the latest technologies available on the market and offering more realistic simulations.

Does your company need new packaging testing machines, but don't know where to start? Are you looking to improve your packaging laboratory by following the latest trends and methods?

At Safe Load Testing Technologies, we put our two decades of experience in the packaging industry at your service.

Contact us and we will help you find the solution that best suits your company.