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Water-based liquid coating of trailers

Rimorchi Bertoja, in collaboration with its long-standing partner WAGNER, has installed innovative application equipment already set up for transitioning to completely water-based coating cycles, as part of its journey towards total production sustainability. The highlight of this application system is the cleaning solution, specifically designed to reduce consumption and waste.

Efficient coating processes with AirCoat equipment

Read the full report to learn more about the liquid coating system in the production process of Rimorchi Bertoja.

  • Manual application is carried out using WAGNER GM 4100 AirCoat guns. This technology combines the advantages of both airspray and airless atomisation, ensuring excellent finishing quality, lower spray pressure than airless solutions, faster application, and reduced overspray.
  • 2 Intellimix units for primer application and under-body coating, and 1 TwinControl unit for solvent-based epoxy paint.
  • Both systems are equipped with Leopard 35-70 high-pressure piston pumps, with a volumetric flow rate of 70 cm³/DH for the catalyst and the paint product. A distinctive feature of this mixing system is the ability to carry out the cleaning of the guns independently.


Source: M. Fumagalli “A cutting-edge, flexible application system promoting the sustainable development of Rimorchi Bertoja” in IPCM no. 96 (Nov/Dec 2025), pp. 66-72

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liquid coating booth

Inside one of the 2 coating booths, which can accommodate medium-sized parts measuring up to 13.5 x 2.5 m.

intellimix units for mixing and dosing

The 2 WAGNER Intellimix units for paint mixing and dosing.

high-pressure piston pumps

Both systems (Intellimix & TwinControl) are equipped with Leopard 35-70 high-pressure piston pumps, with a volumetric flow rate of 70 cm³/DH for the catalyst and the paint product.

coated trailer by rimorchi bertoja

A red-coated trailer ready for delivery: Rimorchi Bertoja is well-known for its high degree of product customisation, including coating in any color requested by customers.

Applied products

Leopard 35-70

Leopard 35-70

High-pressure piston pump

TwinControl 35-70

TwinControl 35-70

Electronic mixing and dosing system

GM 4100AC

GM 4100AC

AirCoat manual gun

 

Previously, the amount of mixed paint and the cleaning of pumps and pipes depended on the operator’s experience, as mixing was done manually. […] Today, with these automatic mixing machines, the cleaning process involves only the pipes and guns, while the pumps remain primed with fresh product, resulting in considerable time savings and reduced waste.

Mirco Franchi

Purchasing Manager at Rimorchi Bertoja

More information

logo by rimorchi bertoja

About the company

Rimorchi Bertoja is a manufacturer of special trailers and semi-trailers for heavy transport. It develops customised solutions with 2 to 12 axles for special and exceptional applications, including earth-moving machinery, mining equipment, industrial plants, bulky construction materials, prefabricated buildings, tanks, boats, oversized loads, and vehicles for the logistics and military sectors.

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