Tronair 12-3100-1000 – 2-Bottle Oxygen/Nitrogen Cart

The Tronair 12-3100-1000 is a 2-bottle transport cart built to safely hold and move two high-pressure oxygen or nitrogen cylinders used in aircraft servicing. It provides a stable, mobile platform to support supply bottles for oxygen system recharging, nitrogen tire or strut inflation, or other maintenance tasks requiring onboard gas supplies.

This cart supports standard 9” diameter high-pressure bottles rated for up to 3,500 PSI (241.3 bar). This ensures compatibility with most aviation oxygen and nitrogen cylinders used for aircraft servicing.

Yes. Thanks to its welded-steel frame, durable powder-coat finish, and 14” wheels, the cart is rugged enough for ramp transport yet still maneuverable for use in the hangar.

No. The 12-3100-1000 is a cart-only unit. It does not include regulators, hoses, or boosters. To service aircraft oxygen or nitrogen systems, you must pair the unit with a compatible regulator or booster kit.

The cart holds two high-pressure bottles and weighs approximately 45 lbs (20 kg) itself. Its frame measures approximately 43” high, 30” wide, with 14” wheels, making it compact yet stable for handling heavy bottles.

With two bottles, your crew can service multiple oxygen or nitrogen demands – such as topping off more than one aircraft, or completing multiple tasks before needing to swap cylinders. This reduces downtime and increases throughput compared to single-bottle carts. Dual-bottle carts are especially useful for busy FBOs, hangars, or maintenance shops handling multiple aircraft back-to-back. This is a widely accepted advantage of 2-bottle oxygen/nitrogen carts.

The cart has a chain to secure bottles in place during transport, preventing them from tipping or falling during movement. It also uses soft rubber (or solid) tires, which help protect hangar floors and improve stability during handling.

Yes. The 45-lb weight and wheel size make it manageable for a single user to push or steer the cart, especially when the bottle weight is balanced. Its design is intended for use on hangar docks or ramp surfaces without the need for heavy lifting equipment.

Yes. The cart is explicitly designed for use with either oxygen or nitrogen cylinders, providing technicians with flexibility whether topping off aircraft oxygen systems or servicing nitrogen-dependent components, such as tires, struts, or accumulators.

Routine maintenance should include periodic inspection of the frame for corrosion or damage, checks of the bottle restraint chain, and ensuring wheel bearings and tires remain in good condition. Keep the cart clean and avoid chemical exposure that might degrade the finish. Proper maintenance ensures the cart remains reliable over years of frequent use.

Tronair carts – including this model – are outfitted for standard North American CGA-style cylinder connectors. For non-North American bottles, you must verify cylinder and valve compatibility or acquire appropriate adapters.

Always secure cylinders with the provided chain before moving the cart. Ensure valves are closed, and dust caps are in place. Avoid rough surfaces or abrupt stops that could destabilize the load. Also, avoid overloading the cart with more than two bottles. Following safe-handling procedures protects personnel and prevents bottle damage or accidental leaks.