NMX‑ATC‑N2 / Rev 01 / IS 4923 · UHP GRADE‑I N2 / Noida · India 2026 · Product Page

NMX-ATC-N2 · DELIVERED

Aircraft tyre nitrogen charging rig. Set. Fill. Done.

Name: Aircraft Tyre Nitrogen Charging Rig
Brand: Neometrix

A trolley the wheel bay can push to any aircraft: twin 150 bar UHP-nitrogen cylinders, dual-stage regulation, and a digital charging controller that fills to the set pressure, stops itself, and sounds the buzzer — no over-inflation, no guesswork, no air line. Delivered to a DRDO establishment; built to your tender specification.

Enquire — charging rig Capability sheet (PDF)

Trolley-mounted aircraft tyre nitrogen charging rig with twin cylinders, dual-stage regulators, digital controller and clip-on chuck beside an aircraft wheel

Fig · 01 Trolley-mounted rig — representative configuration of the delivered system

Delivery Set-Point

0–10bar

N2 Storage

150bar

Nitrogen Purity

99.99%

Cylinders

2× 40 L

Charging Hose

ISO 9001 / 14001 / 45001 Delivered — DRDO establishment GeM registered supplier Noida · India

Overview

Aircraft tyres run on nitrogen for a reason.

Dry nitrogen carries no moisture to corrode the wheel from inside, no oxygen to feed a brake-heat fire, and a far steadier pressure across the temperature swing from a soaked runway to a frozen cruise. That is why airworthiness practice worldwide prescribes nitrogen inflation — and why every air force wheel bay needs a clean, controlled way to deliver it.

Digital nitrogen tyre inflation controller with LCD display and clip-on chuck connected to an aircraft wheel valve

Fig · 02 Digital charge control — set-point in, buzzer out; no operator judgement in between

The rig replaces the two failure modes of manual inflation at once. Over-inflation is engineered out: the operator keys the target pressure into the electronic controller, an automatic pneumatic valve fills, checks, and tops the tyre against a ceramic-sensor measurement, and the unit stops itself at set-point — LCD showing set and actual side by side, in bar or psi, with a buzzer to confirm. Contamination is engineered out by the gas itself: commercial 40 L cylinders of UHP Grade-I nitrogen at 99.99% purity, regulated in two stages from 150 bar storage to a stable 0–10 bar delivery.

And because it is all mounted on a braked, castor-wheeled steel trolley with a 7 m hose and clip-on chuck, one technician services a full undercarriage without dragging the aircraft to a shop air point — on the flightline, in the hangar, or at a dispersal.

The tyre pressure your maintenance manual demands, delivered by a machine that stops itself at set-point.

Delivered · In Service

Supplied to a DRDO establishment, Pune

Designed, built, and delivered against a defence R&D tender (2017), together with its companion 22 kW workshop screw-compressor package — tender specification to acceptance test.

Controlled · By Design

Set-point charging, automatic shutoff

Electronic control with a ceramic pressure sensor takes the operator out of the accept/stop decision — fill and top-up to set-point are automatic, with the result confirmed on the LCD and by buzzer.

Simple · To Sustain

Commercial cylinders, standard spares

Runs on commercially refillable nitrogen cylinders; delivered with spare regulators, charging adapters to your aircraft's end connection, and a tool kit — no exotic consumables anywhere in the rig.

System

Three pressure stages, one decision.

From 150 bar in the cylinder to the exact set-point in the tyre — the architecture keeps the operator's only job at the keypad, not the valve.

FIG · 03SYSTEM SCHEMATIC · PRESSURE CASCADE

Fig · 03 Cylinder → dual-stage regulation → digital charge control → tyre

Sys · 01

Nitrogen Supply

Two 40 L cylinders at 150 bar of UHP Grade-I nitrogen (99.99%) — commercial, refillable anywhere, carried upright on the trolley — one regulator per cylinder.

Sys · 02

Dual-Stage Regulation

Stage one drops 150 bar storage to a 35 bar interstage; stage two delivers a stable 0–10 bar to the controller — delivery stays stable as cylinder pressure decays.

Sys · 03

Digital Charge Control

Electronic gauge with ceramic sensor, micro-controlled pneumatic valve, LCD showing set and actual pressure with bar/psi conversion and confirm function, buzzer at set-point — 230 V operation.

Sys · 04

Trolley & Delivery

Welded steel-tube trolley to IS 4923 (YSt 310) on solid-rubber swivel castors with brakes; 7 m high-pressure hose with clip-on nozzle and quick-connect adapters matched to your aircraft's valve fitting.

Holding a tyre-inflation or wheel-bay equipment tender? Send it across — clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference configuration, as delivered.

The parameters below reflect the configuration supplied against the DRDO tender. Pressure range, cylinder count, adapters, and mounting are re-scoped against your specification.

Full specification — expand

System	Trolley-mounted aircraft tyre nitrogen charging rig with digital set-point control
Trolley	Welded hollow steel tube to IS 4923 (YSt 310) · solid-rubber swivel castors with brakes · upright twin-cylinder carriage
Nitrogen Supply	2 × 40 L compressed nitrogen cylinders at 150 bar · UHP Grade-I, 99.99% purity · commercially refillable
Regulation	Dual-stage · Stage 1: 150 bar inlet → 35 bar · Stage 2: 35 bar → 0–10 bar delivery · one dual-stage regulator per cylinder
Charge Controller	Electronic pressure gauge with ceramic sensor · micro-control circuit · electronically controlled pneumatic valve · metallic cabinet
Operator Interface	LCD showing set and tyre pressure · bar / psi convert function · confirm function · buzzer at set-point · 230 V, 50 Hz supply
Delivery	7 m high-pressure flexible hose (¼″) with clip-on nozzle · quick-connect charging adapters per aircraft end connection · 210 bar WP cylinder-to-controller link hose
Instrumentation	4″ analogue pressure gauge in addition to the electronic display · stage gauges on regulators
Spares & Tools	Spare castor set, regulators, and charging adapter · spanner tool kit — delivered with the rig
Companion Package	Workshop air package delivered on the same programme: 22 kW screw compressor, 117 CFM (3.31 m³/min) at 10 bar, 300 L receiver with relief valve, filtration and water separation, 15 m delivery hose
Status	Delivered to a DRDO establishment, Pune (2017) · configurable to customer tender specification

PDF · 1 page

Tyre Nitrogen Charging Rig — Capability Sheet

Tender Response

Send your specification — clause-by-clause compliance matrix

Variants

One trolley, many tender names.

Tenders call this equipment a nitrogen tyre inflator, tyre inflation trolley, N2 servicing cart, wheel charging unit, or tyre charging rig. Whatever the wording, the architecture on this page is configured to the clauses of your specification — including the ranges below.

Var · 01

High-Pressure Delivery

Fighter main and nose gear pressures above the 0–10 bar reference range — engineered with a booster stage and matched regulation to the aircraft's servicing schedule.

Var · 02

Self-Generating Nitrogen

Cylinder-free operation from an on-board PSA nitrogen generator with booster — the architecture of our universal self-generating nitrogen service carts, applied to tyre charging.

Var · 03

Struts & Accumulators

The same set-point charging discipline extended to oleo struts and hydraulic accumulators — multi-outlet manifolds and aircraft-specific adapters on one trolley.

Var · 04

Workshop Air Package

The companion 22 kW screw-compressor package — 117 CFM at 10 bar with a 300 L receiver — for wheel-bay and general shop air alongside the nitrogen rig.

Applications

Where it serves.

Every wheel bay, every flightline — anywhere tyres must be at book pressure with dry nitrogen.

A · 01Air force stations — scheduled tyre pressure checks and top-ups on the flightline

A · 02Wheel bays and tyre shops — post-build inflation of assembled wheels

A · 03Naval and army aviation — dispersed operations without fixed gas infrastructure

A · 04MRO facilities — nitrogen servicing during scheduled maintenance

A · 05Defence R&D and test establishments — instrumented, repeatable inflation

A · 06Civil operators and flying schools — nitrogen discipline without a gas farm

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 Why nitrogen instead of shop air?

Three reasons written into airworthiness practice: dry nitrogen carries no moisture into the wheel to corrode it from inside; it carries no oxygen to support combustion when brake heat soaks into the wheel after a rejected take-off; and its pressure tracks temperature more predictably than humid air, so the pressure set on the ground is still the right pressure after a cold soak at altitude.

Q · 02 How does the automatic charging work?

The operator keys the target pressure into the controller and clips the chuck onto the tyre valve. A micro-controlled pneumatic valve fills the tyre while a ceramic-sensor electronic gauge measures continuously; the unit tops or holds as needed and stops itself exactly at set-point, sounding the buzzer. The LCD shows set and actual pressure side by side, in bar or psi.

Q · 03 Can it service fighter-aircraft tyre pressures?

The delivered reference configuration regulates to a 0–10 bar set-point, which covers a wide range of aircraft. For higher main-gear and nose-gear pressures, the same rig is engineered with a booster stage and matched regulation — state the aircraft and its servicing schedule in your enquiry and the delivery range is scoped to it.

Q · 04 What keeps the rig supplied with nitrogen?

Standard commercial 40 L cylinders at 150 bar, UHP Grade-I (99.99%) — refillable from any industrial gas supplier or your station's own gas plant. The trolley carries two cylinders, each with its own dual-stage regulator, and cylinders are exchanged on the trolley without tools. A cylinder-free, self-generating PSA variant is available where cylinder logistics are the constraint.

Q · 05 Which aircraft valve fittings does it connect to?

The clip-on chuck and quick-connect charging adapters are matched to your aircraft's end connection at order stage — the delivered rig shipped with adapters made to the customer's specified fitting, plus a spare. Multi-aircraft fleets are served with an adapter set on the same trolley.

Q · 06 Can you build to our tender specification exactly?

That is the standard engagement. Send the specification and we return a clause-by-clause compliance matrix — the delivered rig was itself built and accepted against a defence R&D tender, together with its companion workshop compressor package, and export enquiries are handled the same way with formalities managed as part of the programme.

↗

Nitrogen & gas GSE from Neometrix.

Charging, boosting, and generation equipment engineered and manufactured at our Noida facility.

↗ Boosted N2

Nitrogen Cart with Booster

High-pressure nitrogen charging for struts, accumulators, and tyres — delivered GSE.

↗ Self-Generating

Universal Self-Generating Nitrogen Service Cart

PSA generation on the cart itself — nitrogen servicing without cylinder logistics.

↗ Flightline GSE

Helicopter Washing Rig

Self-contained trailer-mounted washing system — delivered to the Indian Air Force.

Explore our defence & aerospace capability, gas systems range, or browse all Neometrix product lines.

Get a quotation

Send your tyre-inflation
tender specification.

The Defence Programmes desk replies within two working days with a clause-by-clause compliance matrix and a budgetary quotation. Write to [email protected] or use the form.

Enquire — charging rig Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 / 45001 DELIVERED — DRDO ESTABLISHMENT GeM REGISTERED SUPPLIER MADE IN NOIDA · INDIA

Aircraft tyre nitrogen charging rig. Set. Fill. Done.

Aircraft tyres run on nitrogen for a reason.

Supplied to a DRDO establishment, Pune

Set-point charging, automatic shutoff

Commercial cylinders, standard spares

Three pressure stages, one decision.

Nitrogen Supply

Dual-Stage Regulation

Digital Charge Control

Trolley & Delivery

Reference configuration, as delivered.

One trolley, many tender names.

High-Pressure Delivery

Self-Generating Nitrogen

Struts & Accumulators

Workshop Air Package

Where it serves.

Common questions.

Nitrogen & gas GSE from Neometrix.

Nitrogen Cart with Booster

Universal Self-Generating Nitrogen Service Cart

Helicopter Washing Rig

Send your tyre-inflation
tender specification.

Similar Products

Share This Page

Aircraft tyre nitrogen charging rig. Set. Fill. Done.

Aircraft tyres run on nitrogen for a reason.

Supplied to a DRDO establishment, Pune

Set-point charging, automatic shutoff

Commercial cylinders, standard spares

Three pressure stages, one decision.

Nitrogen Supply

Dual-Stage Regulation

Digital Charge Control

Trolley & Delivery

Reference configuration, as delivered.

One trolley, many tender names.

High-Pressure Delivery

Self-Generating Nitrogen

Struts & Accumulators

Workshop Air Package

Where it serves.

Common questions.

Nitrogen & gas GSE from Neometrix.

Nitrogen Cart with Booster

Universal Self-Generating Nitrogen Service Cart

Helicopter Washing Rig

Send your tyre-inflationtender specification.

Similar Products

Share This Page

Send your tyre-inflation
tender specification.