Choosing the right air cap for your Devilbiss spray gun: a comprehensive guide

Selecting the right air cap for your Devilbiss spray gun can be challenging, especially with the wide range of types available. In this blog, we give you an overview of the most important air cap variants, so you always make the right choice. Whether you are looking for a precise finish or a large-area coating, here you will find all the information you need to choose the ideal air cap for your application.

1. Conventional air atomisation

Conventional air caps use high pressure to create a fine spray of material. Some of the most common conventional air caps include:

• #65R: Ideal for general industrial and metal finishing applications, used with the Ransburg REA manual electrostatic spray gun.
• #65V: Specifically for metal and soft-touch coatings, compatible with the Ransburg Vector and Solo.
• #98V: developed for coating wood, metal and plastics, widely used in the automotive and aerospace industries.

2. HVLP (High Volume Low Pressure)

HVLP technology allows a greater volume of air at a lower pressure, resulting in higher transfer efficiency. Some of the common HVLP air caps are:

• #200: perfect for smaller jobs such as repairs and coatings in the aviation and automotive industries.
• #205: Suitable for repair work and for painting wood and metal.
• #505: Ideal for medium-sized surfaces that require precise control over the paint flow, such as in wood and plastic processing.

3. Trans-Tech

Trans-Tech air caps combine the advantages of conventional atomisation and HVLP technology. These offer higher atomisation energy with optimised efficiency. Here are some of the relevant types:

• #510+: suitable for wood and metal coatings and for precise work on small to medium surfaces.
• #522: Ideal for large-area coatings, particularly in the aerospace and automotive industries.
• #590: For applications with low material consumption, such as in the cosmetics and metal industries.

4. Detailed overview of special air caps

Over time, various special air caps have been developed that have been optimised for specific applications:

• T30 vs. T40: The T30 is better suited for small to medium coatings, while the T40, with its larger spray pattern, is optimal for larger areas.
• #470: Designed for ceramic applications and wet-on-wet enamelling, particularly suitable for sanitary ware.
• #480: Delivers precise atomisation with lower material consumption, ideal for small to medium applications.

5. Summary of all air cap types

There are a variety of DeVilbiss air caps, including conventional, HVLP and Trans-Tech caps. Each of these types is designed for different applications and materials. This blog serves as a comprehensive guide to choosing the right air cap. The main types are listed below:

• Conventional: #65R, #65V, #98V, #430, #470
• HVLP: #200, #205, #505, #500R, #590HV
• Trans-Tech: #510+, #522, #515, #590, #523, T30, T40

Further information

For more details on the specific caps and their applications, view our complete Devilbiss air cap guide.