The Bobcat B721 is the final configuration in the Bobcat lineup — the largest orifice at the widest angle. A 0.021” orifice at 70° delivers approximately 45 oz/min at 1000 PSI across a 14” fan. It is simultaneously the highest-output and widest-fan configuration C.A. Technologies offers on the Bobcat AAA spray gun.

The B721 exists for one specific use case: the thickest practical materials the Bobcat system handles, applied to the largest flat surfaces at the widest fan width. Very high-solid epoxy coatings, ultra-heavy industrial primers, and maximum-viscosity structural finishes on full-width metal panels, very large sheet stock, and wide structural flat surfaces where both 0.021” orifice size and 14” fan width are simultaneously required for production-rate output.

CET recommends calling before ordering the B721 — at 0.021” and 70°, material viscosity, pump system, and substrate dimensions should all be confirmed to ensure this is the right configuration. Call or text 586-210-0555 and we’ll verify before you order.

Fluid Tip

36-721

0.021” orifice · 70° angle · ~14” pattern

Maximum output and maximum width in the Bobcat lineup — ~45 oz/min at 1000 PSI with 14” coverage for the thickest materials on the widest flat surfaces. Field-replaceable tip. Confirm with CET before ordering.

Air Cap

26-101

AAA HVLP air cap · ≤18 PSI at handle

Same air cap as all Bobcat configurations. At 0.021” with the thickest materials, the AAA air assist provides meaningful atomization refinement over pure airless at comparable fluid pressure on wide flat surfaces.

Gun Type

AAA

Air Assist Airless · 1500 PSI max

Requires AAA pump (e.g., Peak 14:1). The thickest materials at 0.021” typically require 900–1300 PSI. Start at 600–800 PSI and increase gradually. Do not exceed 1500 PSI.

Repair Kits

When should I use B721 instead of B719?

Step up to B721 when B719 at 0.019” is consistently under-delivering for your material viscosity at production rates — not just at startup. At ~45 oz/min vs ~36 oz/min, the difference is substantial. The B721 is for the thickest practical coatings through the Bobcat system at maximum fan width. Call or text 586-210-0555 before ordering; we’ll confirm this is the right step for your material.

What is the difference between B721 and B621?

Both use 0.021” at ~45 oz/min. B621 = 60° for 12”; B721 = 70° for 14”. Same orifice, same fluid delivery, different fan width. If B621 is delivering the right atomization on your material and your substrate is wide enough to benefit from 14” per pass over 12”, the B721 is the right move. Same pressure settings, wider fan.

What fluid pressure is needed for very heavy materials at 0.021” and 14”?

Start at 600–800 PSI and increase gradually. The thickest materials at 0.021” at maximum fan width typically require 900–1300 PSI for consistent atomization and full pattern formation. Do not exceed 1500 PSI. If atomization remains inconsistent, call 586-210-0555 — it may indicate a pump output issue rather than a tip issue.

Is the B721 the most powerful configuration in the Bobcat lineup?

Yes — the B721 combines the largest orifice (0.021”) with the widest angle (70°) in the Bobcat system, delivering ~45 oz/min across a 14” fan. It is the highest-output, widest-pattern configuration C.A. Technologies offers on the Bobcat AAA spray gun.

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.