Air Cap Size Guide

When choosing between an HVLP (High Volume Low Pressure) turbine system and a compressor-driven spray gun, consider the following:

Choose an HVLP Turbine System if:

• You primarily work with wood, metal, or artistic projects.
• Portability is important; you need to work in multiple locations.
• You prefer a compact system that’s easy to store when not in use.

Choose a Compressor-Driven Spray Gun if:

• You already own or plan to invest in a suitable air compressor.
• Your workspace can accommodate a stationary compressor setup.
• Your workspace can accommodate a stationary compressor setup.
  

Note: Both systems are capable of handling various finishes. Your decision should be based on your specific project needs, workspace, and mobility requirements. At this time Spray System Store only sells HVLP systems through our web site, certainly get in touch if you want other Fuji Spray equipment, we can source it for you.

Fuji Spray also has a PDF Guide to help you choose which HVLP System to pick.

Selecting the right HVLP turbine system depends on your specific needs, including the types of coatings you use, project sizes, and desired finish quality.

Considerations for Choosing:

• Project Size & Frequency:  Larger or more frequent projects benefit from higher-stage turbines due to increased power and efficiency.
• Coating Types:  Thicker materials like latex or high-viscosity paints require turbines with higher PSI outputs.
• Noise Sensitivity:  If a quieter work environment is essential, consider models with advanced noise reduction features like the Q5 PLATINUM.
• Portability:  For on-site work or frequent transportation, the compact Semi-PRO 2 or Mini-Mite 4 PLATINUM offer greater mobility. 

Here’s a breakdown of the four Fuji Spray turbine models:

• Best For:  Professionals handling diverse projects requiring rapid application and the ability to spray almost any fluid without dilution.
• Power:  Generates up to 11.5 PSI, offering unparalleled performance in its class.
• Features:  Features a digital control panel with six power settings, a Clean Filter indicator, and a sleek, ergonomic design.
• Spray Gun:  Typically paired with the T70 (bottom-feed) or T75G (gravity-feed) spray guns.

• Best For:  Users seeking maximum versatility and control for a wide range of coatings, including high-viscosity materials.
• Power:  Generates up to 9.5 PSI, the highest for low-pressure systems.
• Features:  Includes a Variable Speed Control Dial to adjust motor speed, enhancing precision and reducing overspray.
• Spray Gun:  Typically paired with the T70 (bottom-feed) or T75G (gravity-feed) spray guns.

• Best For:  Professionals requiring more power for a variety of coatings, including some thicker materials.
• Power:  Generates up to 9 PSI, offering faster coverage and better atomization.
• Features:  Equipped with a Heat Dissipation Box to prolong motor life and a Noise Reduction Cover for quieter operation.
• Spray Gun:  Typically paired with the T70 (bottom-feed) or T75G (gravity-feed) spray guns.

• Best For:  DIY enthusiasts and hobbyists working with clear finishes like lacquers and shellacs.
• Power:  Generates up to 6 PSI, suitable for thinner materials.
• Features:  Compact and portable with dual washable filters for easy maintenance.
• Spray Gun:  Comes with the M-Model spray gun, available in bottom-feed or gravity-feed configurations.

Also consult the Fuji Spray Which HVLP Spray Gun Guide.

Have a spray gun already and not sure which one it is? Use Fuji Spray's Spray Gun Identification Guide.

Feed Styles: Bottom-Feed vs. Gravity-Feed

• Bottom-Feed (T70,M-Model 7001):  Ideal for larger projects, these guns have the fluid cup beneath the gun, allowing for higher capacity (up to 1 quart). This setup is well-balanced and reduces the need for frequent refills, making it suitable for extensive spraying tasks. 
• Gravity-Feed (e.g.,T75G,M-Model 7002G,G-XPC):  With the cup above the gun, gravity-feed models are perfect for smaller jobs and tight spaces. They offer better maneuverability and are easier to clean, making them a favorite for detailed work like cabinetry.

• T-Model (T70 & T75G):  These are Fuji’s premium spray guns, known for their lightweight design (20% lighter than standard HVLP guns) and ergonomic Stay-Cool handles. They feature a side-mounted Pattern Control Knob for easy adjustments and provide excellent atomization for a professional finish. This model comes with a 1.3 mm Air Cap Set. T-Model spray gun air cap sets.

• M-Model (7001 & 7002G):  Often bundled with Fuji’s 2-stage systems, M-Models are budget-friendly and versatile. They come in both bottom-feed and gravity-feed options and include rear-mounted controls for fluid and fan adjustments. While slightly heavier, they offer reliable performance for hobbyists and occasional users. This model comes with a 1.3 mm Air Cap Set. M-Model spray gun air cap sets.

• G-XPC Spray Gun: A gravity-feed gun features a side-mounted, swiveling 400cc cup, allowing for spraying in any direction, including ceilings. It’s compact, making it ideal for confined spaces, and includes a side-mounted fan control for precise pattern adjustments. This model comes with a 1.4 mm Air Cap Set. G-XPC air cap sets.

Each air cap set includes a fluid nozzle, needle, and air cap. It’s essential that the fluid nozzle and needle match in size, while the air cap can be adjusted one size up or down to fine-tune atomization. Factors like material viscosity, ambient conditions, and desired finish quality may influence your choice. It’s often beneficial to experiment with different air cap sizes to achieve the best results for your specific project. 

For a more detailed overview and visual guide, you can refer to the Fuji Spray Air Cap Quick Reference Sheet.

• 0.8 mm:  Ideal for ultra-fine applications such as inks, dyes, and touch-up work. Best suited for artists or detailed projects using the GXPC or Sunless spray guns. 
• 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 and 2.5 mm: These sizes are for very high output needs, suitable for industrial primers, texture coatings, and heavy latex applications on large surfaces.

T-Model and M-Model Fuji Spray guns come with a 1.3 mm air cap set. The G-XPC comes with a 1.4 mm air cap set.