Description
Contractors fight rusted tank pinholes using the Rolair Replacement Air Tank Assembly to restore structural pressure vessel integrity on worn 6590HMK13S and K18 gas wheelbarrow air compressors. The ASME-certified twin-tank weldment replaces pinholed, corroded, or impact-damaged twin steel tanks without buying entirely new compressor engines. Equipment mechanics swap engines and pumps onto factory-aligned saddle brackets. The bare replacement tank excludes wheels, engine, and pump, requiring hardware transfer from damaged units.
ASME Hydrostatic Bench Burst Limits
Hydrostatic pressure certification testing verifies the dual steel pressure vessels sustain 300 PSI proof testing without seam leakage, holding a maximum allowable working pressure rating of 200 PSI. Factory pneumatic leak tests confirm all threaded 1/2-inch and 3/8-inch NPT bungs hold airtight seals under high-vibration engine cycling. Transferring a running nine-horsepower Honda engine onto the pre-welded saddle plate shows zero resonance cracking across thirty-thousand cycle shaker trials.
Heavy-gauge ASTM certified pressure-vessel steel forms the twin cylindrical tanks and reinforced structural base saddles, robotic-welded along all seams to meet ASME Section VIII standards. An integrated front steel roll bar and rear engine mounting deck provide factory-drilled bolt slots for Honda gas engines and Rolair K18 pumps. Sized as an OEM direct-fit assembly, the bare replacement tank weighs 64 lbs, measuring 44 inches long, 18 inches wide, and 16 inches high.
Key Features of Rolair TANK-6590
Equipment repair shops and framing contractors buy Rolair Replacement Air Tanks to rebuild corroded gas wheelbarrow compressors. Compare commercial compressor replacement air tank pricing to restore structural pressure vessel safety on jobsite equipment.
- Direct OEM replacement weldment fits Rolair 6590HMK13S and K18 gas wheelbarrow compressor frames perfectly cleanly.
- ASME Section VIII National Board certified steel pressure vessels guarantee commercial jobsite safety up to 200 PSI cleanly.
- Pre-drilled heavy-gauge steel engine and pump saddle deck ensures exact belt pulley alignment with Honda gas engines.
- Industrial green powder coat finish protects exterior steel from abrasive gravel, wet jobsite mud, and road deicing chemicals.
- Integrated front axle bracket and dual rear wheelbarrow handles accommodate factory flat-free wheels and rubber grips.
Compressor Rebuild Negative Selection Filter
The pre-welded engine saddle features slotted mounting holes that permit precision engine sliding to establish proper V-belt tension. Do not purchase this specialized twin-tank weldment for stationary vertical compressors, non-Rolair frame configurations, or electric direct-drive units lacking belt pulleys. Routine maintenance requires purging accumulated water condensation through both lower tank brass drain valves daily, inspecting saddle weld points after rough trailer transit, and applying thread sealant on all air line bungs.
Factory Warranty Hardware Manifest
Rolair backs this replacement air tank weldment with a 1-Year limited manufacturer warranty covering pressure vessel weld integrity, ASME certification compliance, and mounting bracket welds. The factory delivery crate includes one complete twin-tank weldment with pre-welded engine saddle and front bumper plate.
