New paint supply system for industrial applications

This paint supply method has already proved beneficial in the automotive painting world, but Dürr has gone one step further and enhanced it for use in other industries for the first time. The EcoSupply P Core is now adaptable wherever different paint colors are applied in small quantities, such as in the construction, woodworking or automotive supplier industries. This system efficiently recovers unused paint, minimizing rinsing agent consumption and speeding up color changes.

Each color change in the supply line results in paint and rinsing agent waste during the painting process. This can involve disproportionately high costs, particularly with very small quantities. This is because current paint supply systems clean the hoses using solvent and compressed air to remove all paint and rinsing residues left behind before preparation of the next color run can begin. This process is laborious and time-consuming, with longer and thicker hoses resulting in higher paint losses.

Pigging technology reduces paint consumption

 For pigging technology, Dürr uses a fitting body tailored to the internal diameter of the hoses – the so-called pig – to make the process more efficient and reduce paint and rinsing agent consumption. The paint, flowing through the pigging hose, pushes the pig from the source to the target module. This process removes any rinsing agent residue in the hose. Distributor stations, with the option of integrating up to four into one pigging line, provide the connection to the application technology. After the paint application, compressed air blows the pig back towards the source module. In the process, the paint left in the hose is transported back into the paint container. Rinsing agent then flows through the pigging hose towards the destination module. After cleaning, the process repeats.

Faster color changes and simplified maintenance

 The EcoSupply P Core comes in single-pass and circulating versions and is suitable for applying both water and solvent-based paints. In both instances, reduced effort makes for faster color changes. Additionally, the modular design simplifies maintenance, allowing flexible configuration of individual components to adapt to user requirements and integrate into existing systems. Thus, the new system can also integrate with other Dürr systems, such as the EcoSupply2 Core paint supply station.