The ASTURO K1/S HTE manual gravity feed spray gun kit, art. 00250xxK, is a professional solution for manual painting applications requiring controlled spraying, uniform coating deposition and good transfer efficiency onto the surface. It is a gravity feed spray gun supplied in a plastic carrying case with accessories, designed for use in body shops, furniture finishing, industrial painting and coating operations on ferrous materials, plastics, wood or surfaces treated with water-based or polymer coating systems.

HTE technology, High Transfer Efficiency, optimizes the transfer of coating material to the workpiece, reducing dispersion and improving application yield compared with less efficient systems. In professional use, this means better control of the applied layer, reduced overspray, a cleaner working area and more efficient material consumption. The spray gun is suitable for applications where the aesthetic and functional quality of the finish must remain constant, such as bodywork repair and painting, industrial component finishing, furniture coating, panels, structures, metal parts and manufactured items requiring a homogeneous surface.

The gravity feed system allows the coating material to flow regularly towards the needle-nozzle assembly, supporting continuous delivery and practical use even with moderate quantities of material. The 600 cc nylon cup provides a capacity suitable for professional work on surfaces of different sizes, while maintaining good balance during manual use. The reduced weight of the spray gun helps limit operator fatigue during prolonged applications and allows more stable spray control, especially when constant distance, inclination and travel speed must be maintained.

The stated operating pressure is 2.5 bar, a value consistent with low-pressure application focused on transfer efficiency. Correct air pressure adjustment is essential to obtain regular atomization, a stable spray pattern and uniform product distribution. Pressure that is too low may produce larger droplets, irregular coverage or poor film levelling; pressure that is too high may increase overspray, cause material bounce-back from the workpiece and reduce process efficiency. For this reason, before use it is advisable to check the inlet pressure, the air filter condition, the absence of condensation in the circuit and the compatibility between material, nozzle and spray settings.

The needle and nozzle are made of stainless steel, an important feature for wear resistance, adjustment stability and compatibility with different coating products. The quality of the needle-nozzle assembly directly affects delivery precision, spray pattern geometry and coating uniformity. Proper maintenance of these components helps keep spray performance constant over time, preventing defects such as irregular spraying, flow interruptions, material build-up, streaks, excessive product areas or loss of spray-pattern definition.

The kit is available with different nozzle diameters, to be selected according to the material to be applied, viscosity, surface type and desired coating thickness. Smaller nozzles are generally suitable for more fluid products, light finishes, colours and applications requiring higher precision; larger diameters are more suitable for thicker products, fillers, primers, enamels or materials requiring higher flow. Nozzle selection is one of the most important parameters for coating quality because it affects product flow, atomization fineness, spray pattern width and coverage capability. An incorrect nozzle may cause surface defects, uneven deposition, orange peel, runs, poor coverage or excessive material dispersion.

The 1/4 M air inlet connection allows the spray gun to be connected to standard professional pneumatic circuits. For stable operation, it is advisable to use clean, filtered air, preferably regulated with a condensate separator, especially when working with water-based products or finishing cycles where contamination and humidity may compromise the result. Product temperature and viscosity must be kept consistent with the application cycle, because materials that are too thick or not properly prepared can alter atomization and reduce coating quality.

During use, the operator should keep a constant distance between the spray gun and the surface, keep the spray pattern perpendicular to the workpiece and overlap each pass regularly. Finish quality depends on the combination of pressure, nozzle diameter, viscosity, spray pattern opening, product flow, travel speed and spray angle. In technical or industrial applications, even small path errors, height variations or irregular movements can generate thickness differences, shadows, excessive build-up areas or defects in the coating film. For this reason, the spray gun must be carefully adjusted and tested on a sample surface before final application.

In quality control, this kit supports repeatable and verifiable applications, helping maintain consistent colour, coverage, thickness and surface appearance. In body shops it is suitable for applying colour with good uniformity, while in furniture finishing it can be used on wood, panels and components treated with polymer or water-based products. In industrial and mechanical environments, it can be used for metal components, housings, supports, structures, equipment and parts requiring surface protection or controlled aesthetic finishing.

The supplied carrying case makes transport, protection and organization of the spray gun and accessories easier, making the product suitable for both workshop use and maintenance or finishing tasks at different workstations. After each use, accurate cleaning of the cup, internal passages, nozzle and needle is essential, because dry or partially cured residues can compromise spraying precision in subsequent operations. Regular maintenance reduces downtime, improves result consistency and extends the service life of the spray gun.

The ASTURO K1/S HTE manual gravity feed spray gun kit, art. 00250xxK, is therefore suitable for professionals looking for an efficient, precise and practical painting gun capable of working on different materials and with different coating products. The combination of HTE technology, gravity feed, 2.5 bar operating pressure, 600 cc cup, stainless steel needle and nozzle, reduced weight and carrying case supply makes it suitable for body shops, industrial painting, furniture finishing, maintenance and technical applications where surface quality and process repeatability are essential.