Faulty spray pattern
Clogged or damaged nozzle components may cause faulty spray patterns. In most of the cases, these contaminations can be easily removed – the comprehensive SATA guideline „Cleaning and Maintenance of Paint Spray Guns” demonstrates how: www.sata.com/firstaid. Below survey illustrates possible malfunctions your paint spray gun may show during daily operation – and what to do to remove these defects.
For regular spray pattern supervision we recommend SATA cert. |
|
Defect | Possible Cause | Corrective Action | |
Spray pattern is not large enough | Air drillings and air passages are clogged | Clean the air cap with cleaning solution using a suitable cleaning brush; afterwards blow dry thoroughly | |
Angular or S-shaped spray fan | Horn air drillings are clogged | Thoroughly clean the air cap with suitable cleaning utensils; replace the nozzle set if necessary | |
Half-moon shaped spray fan | Horn drillings are contaminated on one side or front drillings are clogged | Clean the air cap with cleaning solution using a suitable cleaning brush; afterwards blow dry thoroughly | |
Lopsided spray fan
| Fluid tip (fluid tip pin) and/or air cap damaged | Make sure that fluid tip and air cap are undamaged; replace nozzle set, if required | |
Splitting spray fan | The atomisation pressure is too high | Adjust the inlet pressure in line with the requirements of the paint material being used | |
| The material viscosity is too low | Properly adjust viscosity; use smaller nozzle size, if necessary | ||
