Manufacturing Processes

INERGY uses the plastic blow molding process for tanks and filler pipes.

The raw plastic material is in pellets and has to be melted to go through the extrusion head of the blow molding machine to form the parison.

The mold is in two shells.




The parison goes down between the two shells of the mold, they close onto the parison and air is injected into the system. The plastic material, with the air pressure, will be projected to the surface of the mold and take its form.

Molds open, product comes out and exceeding material is eliminated.

The fuel tank has to cool down before assembly of the components. Post-cooling devices can be used for this step to accelerate this process.

When the product is cooled down, it is going through a finishing machine to weld components (including the filler pipe) onto the tank. Special Finishing Machines have been developed by INERGY to optimize and robotize this process.

Finally, the last step of production is equipping the fuel system with lines and the fuel deliver module.


Quality checks of every product are carried out at each step of the manufacturing process.

Innovative processes developed by INERGY, such as blowing simultaneously two tanks or the tank and filler pipe, 3D blow molding, etc. aim to gain substantially in productivity, competitive advantages by respecting the same standards of quality for the benefit of our customers.

With our customers increasing the focus of our product performance after their products have left our shipping docks, INERGY has developed feedback and continuous improvement systems to interact with our customers’ organization. This information is fed back into the product development process and shared openly with our suppliers and customers.

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