The ASTURO needle-air cap-nozzle set for K1/A LEGEND, item 00261, is a group of technical spare parts designed to restore or correctly configure the compatible spray gun item 00260. The set includes three essential components for spray gun operation: the needle, which controls opening and product dosing; the nozzle, which determines material flow; and the air cap, which contributes to spray pattern formation and atomisation quality. The correct interaction of these elements is essential for obtaining regular spraying, good surface finish and consistent coating application.

The product is available in different sizes corresponding to nozzle diameters 0.8 mm, 1.0 mm, 1.2 mm, 1.4 mm, 1.7 mm, 1.9 mm, 2.2 mm and 2.5 mm. This range allows the spray gun configuration to be adapted to different application needs. Smaller diameters are generally suitable for thinner materials, more controlled details and finishes requiring greater precision, while larger diameters are better suited to higher-viscosity materials, greater flow rate and applications requiring heavier or faster coverage.

From an operational point of view, the needle-air cap-nozzle set is one of the most important elements in controlling spray quality. It is not just a simple mechanical spare part, but a functional group that directly affects the behaviour of the spray gun. Correct nozzle diameter selection helps improve atomisation, reduce application defects and make the spray pattern more stable. On the contrary, a combination that is not suitable for the material being used can cause atomisation problems, irregular spray pattern, excessive product consumption, runs, overspray or uneven finish.

In this product, the concepts of precision and resolution should not be interpreted in the traditional metrological sense, but as delivery precision, spray pattern control and atomisation regularity. The nozzle diameter is in fact a concrete technical parameter that directly influences the behaviour of the gun. Correct size selection allows the painter to adapt the spray gun to the type of coating, material viscosity, surface to be treated and the desired aesthetic or functional result.

This set is suitable for professional use in body shops, the wood industry, industrial maintenance, finishing of metal components, technical coating and automotive work. It can be used both for routine maintenance and for restoring the original performance of the spray gun when wear parts no longer guarantee correct spray quality. A worn needle or nozzle, or a damaged air cap, can compromise the spray fan, generate asymmetry in the spray pattern and reduce the overall quality of the process.

For correct use, it is advisable to replace the components as a complete set, especially when consistent functional matching between needle, air cap and nozzle must be maintained. During assembly, it is important to ensure perfect cleanliness of the seats, avoid impacts or deformation of the more delicate parts and make sure tightening is correct without excessive force. After installation, a preliminary test on a sample panel allows the operator to check spray fan width, atomisation uniformity and correct material flow before applying to the final workpiece.

The ASTURO needle-air cap-nozzle set for K1/A LEGEND is therefore an essential technical solution for users who want to keep their spray gun efficient, adapt its configuration to different materials and achieve consistent professional spray quality. Thanks to the availability of several diameters, the product offers operating flexibility and supports bodywork specialists, painters and technicians who require control, reliability and continuity in coating applications.