Cartesian Robot for Painting

Lesta LEBOT C is a cartesian painting robot designed to automate industrial finishing systems on parts, even large ones. The Lesta LEBOT C cartesian painting robot consists of a gantry crane fitted with a chain drive for translation, fully customizable in length, width and depth, so it can paint large parts while keeping a smaller floor footprint than a traditional anthropomorphic robot.

The chain used to move the carriage provides structural rigidity and execution precision, while the wrist transmission is a belt-driven linear guide, designed to achieve the highest possible execution speed even on repetitive painting cycles.

Cartesian painting robot: window and door frame painting

A typical application of the Lesta LEBOT C cartesian robot is painting windows and door frame profiles in wood or metal, a sector where path repeatability and edge precision are critical for finish quality. For these applications the cartesian robot is often paired with the Image Match 2D accessory, which automatically recognizes the part’s position using machine vision, eliminating the need for precise manual positioning before painting.

Automatic programming with EasyPROG

The EasyPROG programming system, available on the Lesta LEBOT C cartesian robot, automatically generates the optimal gun path on the part’s profile, reducing system setup time every time the type of frame or profile to be painted changes. This makes the Lesta cartesian painting robot particularly suited to production that alternates different batches of windows, doors and profiles, without having to manually reprogram the cycle for every variant.

Compared to manual painting, the cartesian robot for painting keeps the same paint thickness and finish on every part of the batch, reducing overspray and material waste. This matters for those producing frames and profiles in series, where even small variations between parts can compromise the aesthetic uniformity of the final batch, especially on long, narrow surfaces where manual application tends to be less consistent.

Gantry structure and system integration

Thanks to its gantry structure, the Lesta LEBOT C cartesian painting robot can be configured with very long travel strokes, keeping the same precision along the entire rail: a feature that also makes it suitable for lines with multiple work stations, or for systems where the part to be painted exceeds the size manageable by a floor- or wall-mounted anthropomorphic robot.

This cartesian painting robot can be integrated into any type of industrial painting and finishing system, both liquid and powder. For painting doors, windows and wooden frames, the dedicated page on industrial door painting covers Lesta’s solutions for this sector in more detail, while for profiles and metal structures more details can be found on the page about industrial metal painting.

ATEX version and management systems

Available in ATEX version too. This makes the Lesta LEBOT C cartesian painting robot a suitable choice also for plants working with flammable paints or powders, where certification for potentially explosive atmospheres is an essential requirement.

The Lesta LEBOT C cartesian painting robot can also be integrated with plant management systems such as Lesta Recipe Manager and Lesta Production Manager, to automatically recall the correct painting recipe at every part change and keep track of production, further reducing manual intervention on the line.

For anyone evaluating the purchase of a cartesian robot for painting windows, doors, profiles or other large parts, the Lesta technical team is available to help configure the travel stroke, accessories and programming system best suited to their production cycle.