The Bobcat B409 pairs a 0.009” orifice with a 40° spray angle — delivering an 8” production-width pattern at the second-smallest orifice in the Bobcat lineup. It’s the right configuration when materials are thin enough that the 0.011” still delivers more fluid per pass than the finish requires, or when you need very precise mil thickness control on thin sealers, stains, or fine waterborne coatings.

At approximately 9 oz/min at 1000 PSI, the B409 delivers significantly less material per pass than the B411 (13 oz/min) or B413 (17 oz/min) — giving you the control needed for very thin coatings on fine wood surfaces, detailed metal components, and any application where overapplication is a quality issue rather than just a waste issue.

The 40° angle keeps the 8” fan for efficient component coverage — narrower angles are available at 0.009” (B309 at 6”) for tighter work, or you can step up to B411 or B413 when moving to heavier materials on the same production line.

Fluid Tip

36-409

0.009” orifice · 40° angle · ~8” pattern

Second-smallest orifice in the Bobcat lineup at 40° — precise fluid delivery for thin sealers, stains, and fine waterborne coatings at full 8” production fan width. Field-replaceable tip.

Air Cap

26-101

AAA HVLP air cap · ≤18 PSI at handle

Same air cap as all Bobcat configurations — refines airless atomization with a small volume of HVLP air. At 0.009”, even lighter fluid pressure produces excellent atomization on thin materials.

Gun Type

AAA

Air Assist Airless · 1500 PSI max

Requires AAA pump (e.g., Peak 14:1). Airless fluid pressure provides primary atomization; HVLP air at cap refines the pattern.

Repair Kits

When should I choose B409 over B411 or B413?

Choose B409 when your material is thin enough that the B411 is still delivering too much per pass — visible runs, blotching on porous wood, or difficulty controlling mil thickness on vertical surfaces. Typical use cases: wood sealers, dye stains, and very thin waterborne topcoats. If you’re spraying lacquers or standard enamels in production, B411 or B413 are more appropriate.

What fluid pressure works best with 0.009”?

Start at 350 PSI and increase until atomization is consistent. The 0.009” orifice is small enough that thin sealers and waterborne coatings typically atomize well at 350–600 PSI. Higher pressure than necessary on a small orifice can cause over-atomization and excessive mist. Do not exceed 1500 PSI.

Is there a 0.009” option with a wider pattern?

Yes — the B509 uses the same 0.009” orifice at 50° for a 10” pattern. For thin materials on larger flat panels, B509 gives you more coverage per pass at the same fluid delivery rate. Call or text 586-210-0555 to confirm which is right for your substrate geometry.

Can I swap tips to a larger orifice without buying a new gun?

Yes — all 36-series tips are field-replaceable. If your production needs a larger orifice for heavier coatings, order the 36-411 or 36-413 and swap it in. Call or text 586-210-0555 to order.

What repair kit does the Bobcat use?

10-137 covers routine maintenance — all o-rings and the seat. 10-138 is the complete kit adding the air valve assembly and needle seal cartridge. CET stocks both for same-day shipment.

Where can I find the Bobcat parts manual?

The full parts manual with exploded diagram, tip flow chart, and all replacement part numbers is available via the download button below. CET includes documentation with every order.