Automotive OEM

Electrostatic spraying offers the highest transfer efficiency.
There are two methods for applying waterborne paint electrostatically:

1. External charge – ions are emitted from electrodes and attach to paint droplets as they exit the sprayer.
2. Internal charge – the paint is charged directly inside the sprayer before application.

While external charge systems are more cost-effective to install, they are typically 5 to 10 percentage points less efficient than internal charge systems.

Internal charge sprayers not only deliver higher transfer efficiency, but also offer greater reliability in wet environments and reduce equipment contamination.

Transfer efficiency (TE) is influenced by multiple factors and settings.
Generally, a shorter application distance improves TE, as do lower rotary bell speeds, higher paint flow rates, slower robot movement, and higher electrostatic voltage. However, these conditions can lead to a wetter film build, increasing the risk of sagging or bubbling.

To overcome this challenge, the Great Transfer Efficiency (GTE) bell system is engineered to deliver exceptionally high TE while maintaining superior finish quality.

Color change performance is evaluated based on two key metrics: time and paint waste.
The time required to flush the paint, clean the circuit, and refill with the next color depends on several factors—such as hose length, gear pump and regulator size, distance between components, and hard-to-clean dead volumes.

Paint waste is directly related to the volume of paint within the circuit.
To minimize this, we’ve engineered compact regulators, fast-rotating gear pumps, and pressure sensors with reduced channel volumes. Our fully integrated circuits shorten the distance between all functions in the color change block, further reducing waste.

Solvent waste is reduced by minimizing internal volumes and designing smooth, easy-to-clean surfaces that eliminate dead zones.
Adjusting air/solvent blow pressure and cycle count based on paint type also improves cleaning efficiency.

Our UPside CCV system achieves a color change in just 15 seconds, with only 43 cc of paint waste.
And with our innovative PaintSave system, Sames pushes performance even further—reaching 12 seconds and just 18 cc of waste.

Explore our technologies to learn how we help you save time, reduce waste, and boost efficiency.

When one of our customers adopted a two-component adhesive, it introduced a new requirement: thorough surface cleaning to remove dust and oil.
At the time, no suitable system existed to meet this need. In response, Sames collaborated closely with the customer to develop a fully robotic cleaning solution tailored to their production environment.

This is a perfect example of how we tackle today’s manufacturing challenges—through close collaboration and innovation to help our customers improve their processes.
It’s what drives us every day.