Do I need an air compressor to run a nitrogen generator for tires?

Yes. Pressure swing adsorption works by separating nitrogen out of compressed air, so the KT-N80 needs a compressed air supply feeding it. Air quality matters as much as volume: oil carryover and liquid water shorten molecular sieve life. Check the unit's intake requirements against your compressor's output and against the filtration and drying already installed in the bay.

What nitrogen purity do tires actually need?

The Katool KT-N80 produces up to 95% purity (typical), which is the range tire service equipment is generally built around; tires do not need laboratory-grade gas. What limits the result in practice is purging. A tire already holding shop air must be evacuated, or inflated and deflated repeatedly, or the finished fill ends up as a mixture regardless of generator purity.

Is 80 L/min enough for a busy tire shop?

80 L/min nominal is the KT-N80's rated output. Judge it against tires filled per shift and their volume rather than peak minutes. Shops commonly pair a PSA generator with a storage tank so short bursts of demand draw from stored gas instead of waiting on live production. Light truck and equipment tires consume considerably more per fill than passenger tires.

Is nitrogen better than compressed shop air in tires?

The practical difference is dryness and oxygen content. Shop air carries water vapor, which drives pressure change as tires heat and cool and encourages corrosion at the rim and valve. Dry air is already roughly 78% nitrogen by volume (U.S. Standard Atmosphere), so a nitrogen fill mainly removes what remains. The benefit is largest on tires that sit long or run hot duty cycles.

What maintenance does a PSA nitrogen machine need?

Most routine work is on the air side: drain moisture, service inlet filter elements on schedule, and keep oil and liquid water out of the feed, since both degrade the carbon molecular sieve that performs the separation. Check fittings and hoses for leaks, because losses downstream waste production capacity. Follow the maintenance intervals in the manual supplied with the machine.

Tire Nitrogen Machine

Nitrogen generators for tires replace shop air with dry, high-nitrogen gas at the point of use. This collection carries one machine: the Katool KT-N80, a PSA nitrogen generator rated at 80 L/min nominal output and up to 95% purity (typical), with a digital control panel and heavy-duty frame, at $1,999. It suits tire centers, general repair shops and fleet maintenance bays running steady tire volume.

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Katool Tire Nitrogen Generator with digital display and adjustable hoses for efficient tire inflation

Katool KT-N80 Tire Nitrogen Generator 80 L/min PSA Nitrogen Machine

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Cathodic Nitrogen Generator: The Katool KT-N80 Advantage Features: Advanced Nitrogen Generation: Creates 95%-99.5% pure nitrogen to enhance tire...

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$2,599.00

$2,599.00 - $2,599.00

$2,599.00

$1,999.00

$1,999.00 - $1,999.00

$1,999.00

$600 Off Limited time deal

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Katool KT-N80 Tire Nitrogen Generator 80 L/min PSA Nitrogen Machine

80 L/min PSA nitrogen generator for continuous shop tire service

$1,999.00

How nitrogen tire inflation equipment works

A PSA (pressure swing adsorption) generator pushes compressed air through carbon molecular sieve beds that hold back oxygen and let nitrogen pass. The beds alternate between adsorbing and venting — the “pressure swing” — so the machine produces a continuous stream on site instead of bottled deliveries. Dry air is already about 78% nitrogen by volume (U.S. Standard Atmosphere composition), so what you gain in the tire is the removal of most of the remaining oxygen and, just as usefully, water vapor.

Because PSA machines separate nitrogen out of compressed air, the air feeding the unit matters as much as the unit itself. Oil carryover and liquid water shorten sieve life, so review filtration and drying on the compressed air side and confirm intake requirements against what your bay can actually supply.

Model	Katool KT-N80 (SKU KT-N80)
Method	Pressure Swing Adsorption (PSA)
Output	80 L/min (nominal)
Purity	Up to 95% (typical)
Controls	Digital control panel
Power	Electric power unit
Build	Heavy-duty frame

Choosing a nitrogen generator for tires

Work backwards from the bay, not from the brochure:

Flow vs. pace — compare rated output to how many tires you fill per shift and their volume; equipment and light truck tires draw far more than passenger tires.
Purge method — a tire already holding shop air must be evacuated or cycled, or the finished fill is a mix. This, not the generator, usually sets time per tire.
Purity target — higher purity is produced more slowly. Tire work does not need laboratory-grade gas.
Siting — floor space, electrical supply, ventilation and noise from the supporting compressor.
Consumables — filter elements and sieve life are the real running cost.

The common mistake is buying on the purity figure alone while ignoring compressed air quality and purge time, then wondering why throughput disappoints.

Safety and shop practice

OSHA 1910.177 governs servicing single-piece and multi-piece rim wheels, including trained employees and use of a restraining device during inflation of multi-piece rims; adding nitrogen does not change those requirements. Nitrogen is also a simple asphyxiant — vented gas displaces oxygen — so keep the machine in a ventilated area rather than a closed room.