Harder & Steenbeck EVO 2024 0.45mm Fineline Aircap — Seal & Needle Cap, Precision Replacement Tip

The Harder & Steenbeck EVO 2024 0.45mm fineline aircap with seal and needle cap is a precision replacement tip designed to restore fine-line spray performance on compatible Harder & Steenbeck and Giraldez airbrushes.

This spare part is engineered to fit a wide range of Harder & Steenbeck and related airbrush models, offering an easy way to recover crisp detail and predictable spray patterns without having to buy a new airbrush. It includes a 0.45 mm fineline aircap plus a seal and needle cap to ensure a reliable nozzle seat and protect the needle when stored or during transport. The component is intended for hobbyists, professional artists, and technicians who need an exact-fit replacement that matches factory tolerances.

Which airbrush models are compatible with this fineline aircap?

The 0.45 mm fineline aircap has broad compatibility across several Harder & Steenbeck and Giraldez series. It fits current and legacy models where the design calls for the fineline cap profile and the 0.45 mm nozzle geometry. Before ordering, confirm your airbrush accepts screw-on fineline caps or uses the same cap/needle interface.

• Suitable for ULTRA 2024 and EVOLUTION 2024 models
• Fits Giraldez Infinity series and Kyiv Infinity models
• Compatible with Ultra 2006–2023, Evolution 1998–2023, Infinity 2007–2023
• Replaces worn or damaged fineline cap assemblies on matching airbrushes

How does the 0.45 mm fineline cap affect spray behavior?

A 0.45 mm fineline cap balances fine detail capability with decent material flow, making it a versatile choice for line work, small-area coverage, and controlled blending. The cap shape directs airflow around the needle and nozzle to produce a consistent fan and centered atomization. Use medium-thin paints and proper pressure settings for best results.

• 0.45 mm orifice for fine lines and controlled coverage
• Aircap profile promotes centered, stable atomization
• Works well with thinned paints and typical hobby air pressures

What’s included and how do I install or maintain the part?

The item ships as a fineline aircap paired with a seal and a needle cap to secure and protect the nozzle and needle tip. Installation is straightforward: remove the old cap, check the needle seat and nozzle for debris, then screw the new cap in until snug without overtightening. Regular cleaning and using the needle cap when storing the brush will prolong service life.

• Includes fineline aircap, rubber seal, and protective needle cap
• Hand-tighten onto the nozzle; avoid excessive force
• Clean nozzle and needle before fitting to ensure proper seating

Who is this replacement part for? Artists and technicians who own Harder & Steenbeck Ultra, Evolution, or Infinity family airbrushes—or Giraldez and Kyiv Infinity variants—will benefit from this cap when the original aircap is damaged, clogged, or lost. It’s ideal for people who prioritize maintaining factory-level precision and want a direct-fit spare that restores consistent spray performance. If you need a different nozzle size or a specialized cap profile, check model-specific compatibility charts before purchasing.