The Bobcat B311 combines a 0.011” orifice with a 30° spray angle — producing a 6” pattern at finer fluid delivery than the B313. It’s the configuration for operations running fine lacquers, enamels, or waterborne topcoats on narrow substrates where both material control and fan width need to be reduced simultaneously.

The B311 sits at an intersection: smaller orifice than the B313 (0.011” vs 0.013”) and narrower fan than the B411 (6” vs 8”). At approximately 13 oz/min at 1000 PSI, it delivers less material per pass than the B313 at the same 6” pattern width — giving you the control needed for finer finishes on chair legs, rails, moldings, and narrow metal profiles without switching to a different angle.

If you’re running fine lacquers on narrow furniture components and finding the B313 delivers slightly more material than the finish requires, or the B411 produces a fan that’s slightly too wide for your substrate, the B311 closes that gap. Same gun body, same air cap, same 6 CFM draw.

Fluid Tip

36-311

0.011” orifice · 30° angle · ~6” pattern

Finer orifice than the B313 at the same 30° angle — ~13 oz/min at 1000 PSI for fine lacquers and waterborne coatings on narrow components. 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. The 30° tip geometry controls fan width independently of air cap operation.

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

How does the B311 differ from the B313 and B411?

The B311 is unique in combining a finer orifice (0.011”) with the narrower angle (30°) — approximately 13 oz/min at a 6” pattern. The B313 uses the same 30° angle but a larger 0.013” orifice (~17 oz/min). The B411 uses the same 0.011” orifice but a wider 40° angle (8” pattern). Choose B311 when you need both reduced fluid delivery and a narrower fan simultaneously.

What fluid pressure works best with B311?

Start at 350–500 PSI. Fine lacquers and waterborne coatings at 0.011” typically atomize well at 500–800 PSI. The 30° angle doesn’t change pressure requirements — atomization is driven by the orifice size and fluid pressure, not the fan angle. Do not exceed 1500 PSI.

Can I swap to a wider angle tip without buying a new gun?

Yes — all 36-series tips are field-replaceable. If your production mix includes both narrow profiles and flat panels, keep both a 36-311 and a 36-411 on hand and swap between jobs. Call or text 586-210-0555 to order.

What pump system does the Bobcat require?

The Bobcat requires an AAA pump delivering 350–1500 PSI fluid pressure. The C.A. Technologies Peak 14:1 is the standard pairing — available in cart mount, wall mount, and portable cart configurations. Call or text 586-210-0555 to configure the right system.

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. Most in-stock orders ship same day — stocked at C.A. Technologies’ Colorado facility.

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.