Turbine Spray Gun Air Cap Sets

Each air cap set includes a fluid nozzle, needle, and air cap. The nozzle and needle must be the same size — together they meter how much material reaches the air stream — while the air cap can go one size up or down from that pairing to fine-tune atomization. Size by what you spray, not by the gun: thin materials like dyes, stains, and clear lacquers want a smaller nozzle; heavy latex, primers, and filled coatings want a larger one.

Fuji’s Air Cap Quick Reference Sheet (PDF) maps every size against the materials it suits.

• 0.8 mm: Ideal for ultra-fine applications such as inks, dyes, and touch-up work. Best suited for artists and highly detailed projects.
• 1.0 mm: Perfect for fine finishing tasks, including water-based lacquers, sealers, and stains. This is a versatile choice for most clear finishes.
• 1.3 mm: Offers a slightly higher output, making it suitable for automotive enamels, catalyzed lacquers, and latex paints on cabinetry and trim.
• 1.5 mm: Provides medium output, ideal for spraying walls, ceilings, and larger surfaces with materials like primers and oil-based paints.
• 1.8 mm: Designed for high output applications, including thick coatings like epoxy, adhesives, and multi-fleck paints.
• 2.0 mm: Very high output — industrial primers, texture coatings, and heavy latex on large surfaces.
• 2.5 mm: The largest turbine size — industrial primers, texture coatings, and heavy latex on large surfaces.

T-Model and M-Model guns ship with a 1.3 mm air cap set and take sizes from 0.8 mm to 2.5 mm. The G-XPC ships with a 1.4 mm set and takes 0.7 mm to 2.2 mm.

Turbine and compressor air caps do not interchange. If you run a gun off a shop compressor, you want the compressor air cap sets.