How mobile is the nitrogen trolley?

The powder-coated steel trolley measures 690 x 645 x 1,150 mm, weighs approximately 75 kg with hose and gauges fitted, and rolls on industrial-grade swivel casters with pneumatic wheels for maneuvering through narrow aisles, aircraft bays and outdoor sites.

Who manufactures the Portable Single Cylinder Nitrogen Trolley with Booster?

The Portable Single Cylinder Nitrogen Trolley with Booster is designed and manufactured by Neometrix Engineering Pvt Ltd, Noida, India, for defence, aerospace, and industrial customers.

Portable Single Cylinder Nitrogen Trolley with Booster / Haskel Booster · 75:1 · to 415 Bar / ISO 4413 · ISO 7241 / Noida · India

PSCNT · HASKEL BOOSTER · 75:1 RATIO

Portable Single Cylinder Nitrogen Trolley with Booster, rated to 415 bar (6,000 PSI).

A mobile, powder-coated steel trolley that uses a two-stage Haskel pneumatic booster to raise nitrogen from a standard single-cylinder charge of 200-250 bar up to 415 bar, delivering precise, pulsation-free output at a 75:1 boost ratio. Fitted with a 15 m stainless-steel braid hose, ISO 7241 quick-disconnects and dual redundant relief protection, it is built for field service, aerospace accumulator charging and workshop leak-test duty.

Request proposal Specifications

Portable Single Cylinder Nitrogen Trolley with Booster — compact nitrogen gas booster and cylinder charging trolley for aircraft tyre and strut servicing by Neometrix

Fig · 01Portable Single Cylinder Nitrogen Trolley with Booster · as manufactured

Designed to component standards:

ISO 4413 ISO 7241

Boost Ratio

75: 1

Max Outlet

415bar

Drive Pressure

6–16bar

Hose Length

15m SS braid

Trolley Weight

≈75kg

Overview

Cylinder pressure, boosted on demand.

The Portable Single Cylinder Nitrogen Trolley with Booster is engineered to provide a rapid, on-demand source of high-pressure nitrogen for field and workshop use. It leverages a single, standard nitrogen cylinder and a two-stage Haskel pneumatic booster to elevate gas pressure from a typical 200-250 bar cylinder charge up to a maximum of 415 bar (6,000 PSI).

Portable Single Cylinder Nitrogen Trolley with Booster — side view of nitrogen supply and pressure regulation unit by Neometrix

Fig · 02 Booster and pressure regulation unit · side view

690 × 645 × 1,150 mm footprint on swivel casters navigates narrow aisles and confined test bays.

Mounted on a robust powder-coated steel trolley fitted with industrial-grade swivel casters, the unit combines portability with the performance of stationary boosters — ideal for maintenance teams, R&D labs and mobile service fleets. Its compact footprint carries all necessary controls and gauges within easy reach.

High boost ratio & precision control: the 75:1 boost ratio delivers precise pressure increments. An adjustable high-pressure regulator allows users to set pressures in approximately 1 bar increments, essential for delicate leak tests and burst evaluations.

Dry, filtered drive supply: a built-in 40 µm sintered filter in the drive air inlet ensures contaminant-free operation, extending booster life and preventing damage to sensitive valves and seals. The trolley is air-driven with no electricity requirement, making it inherently suited to explosive and flammable-zone areas.

Architecture

Two modules, one trolley.

The system comprises two tightly integrated subsystems — a pneumatic drive module and a nitrogen boost module — built around the single-stage, balanced-piston Haskel booster cylinder.

Sub · 01

Regulator & Filter Assembly

Ensures consistent, particle-free drive air to the Haskel booster through a 40 µm stainless steel sintered filter, reducing wear on internal components.

Sub · 02

Vent & Isolation Valves

Provide safe depressurization without disconnecting hoses, facilitating rapid cycle times between test rigs and cylinder swap-outs.

Sub · 03

Haskel Booster Cylinder

Single-stage, balanced-piston design offers smooth, pulsation-free output across the full 75:1 boost ratio, from cylinder charge to 415 bar outlet.

Sub · 04

High-Pressure Valve Stack

High-cycle stainless steel valves accommodate thousands of operations per hour with minimal maintenance, routing gas through the boost circuit.

Sub · 05

Gauges & Regulator

Three SS-316 gauges monitor drive, inlet and outlet pressures; an adjustable micrometer-style knob on the high-pressure regulator provides fine control.

Sub · 06

Delivery Hose & Quick-Connects

15 m × 6 mm OD stainless-steel braid hose, 400 bar working pressure, terminated with ISO 7241 quick-disconnect fittings for tool-free change-over.

Dual Redundant Relief

405 bar primary, 430 bar backup

Primary safety relief valve set at 405 bar; secondary burst disc at 430 bar provides catastrophic backup protection against overpressure.

Over-Pressure Gauge Stops

15% over-range mechanical pin stops

Each inlet and outlet gauge features a 15% over-range mechanical stop that protects gauge internals from shock loading, reducing downtime from gauge failure.

Lockout & Compliance

Key-lock isolation, ISO 4413 aligned

Key-operated drive air isolation prevents unauthorized use. Design practice meets the requirements of ISO 4413 for hydraulic system safety.

Key Features

Engineering highlights.

Feature · 01

75:1 Haskel Boost Ratio

Two-stage Haskel pneumatic booster lifts a 200-250 bar nitrogen cylinder charge to 415 bar with precise, pulsation-free output.

75:1 · 415 bar · Pulsation-Free

Feature · 02

Filtered Drive & Relief Protection

40 µm sintered inlet filter shields booster internals; a 405 bar relief valve plus 430 bar burst disc prevent downstream overpressure risk.

40µm Filter · Dual Relief

Feature · 03

15 m Hose & Quick-Disconnects

15 m SS-braided delivery hose with ISO 7241 quick-disconnect couplers enables safe, leak-free nitrogen servicing at range without tools.

15 m · ISO 7241

Feature · 04

Color-Coded Control Panel

Front panel marks inlet, outlet, purge and vent connections with color-coded handles and pictograms for error-free field ops under pressure, even in low light.

Ergonomic · Color-Coded

Feature · 05

Rugged Mobility

690×645×1,150 mm footprint on pneumatic swivel casters with a textured handle enables full mobility in tight aircraft bays and maintenance aisles.

690×645×1150 mm · Casters

Feature · 06

Air-Driven, Electricity-Free

No electricity requirement makes the trolley inherently safe in explosive and flammable-zone areas; a single 200 bar N2 bottle sustains multiple charge cycles per sortie.

Pneumatic Drive · Hazardous-Area Ready

Gallery

Product views.

Portable Single Cylinder Nitrogen Trolley with Booster — view 1

Portable Single Cylinder Nitrogen Trolley with Booster — view 2

Portable Single Cylinder Nitrogen Trolley with Booster — view 3

Portable Single Cylinder Nitrogen Trolley with Booster — view 4

Portable Single Cylinder Nitrogen Trolley with Booster — view 5

Portable Single Cylinder Nitrogen Trolley with Booster — view 6

Fig · Gallery6-view photo documentation — Portable Single Cylinder Nitrogen Trolley with Booster

Specifications

Technical parameters.

Boost Ratio	75 : 1
Drive Pressure	6 bar (min.), up to 16 bar operating range
Drive Air Filtration	40 µm stainless steel sintered filter
Drive Flow Demand	60 SCFM
Max Outlet Pressure	415 bar (6,000 PSI)
Outlet Pressure Accuracy	±1% FS after stabilization
Inlet Pressure Gauge	0–280 bar (±2 bar)
Outlet Pressure Gauge	0–4,000 bar (±20 bar)
High-Pressure Regulator	0–415 bar, micrometer adjustment
Hose Specification	15 m × 6 mm OD, 400 bar WP, stainless steel braid
Trolley Dimensions	690 × 645 × 1,150 mm (L × W × H)
Weight	≈ 75 kg (with hose and gauges)
Materials	Powder-coated mild steel frame; SS-316 valves, fittings and gauges
Operating Temperature Range	−20°C to +60°C

Applications

Where it applies.

01Industrial leak testing of hydraulic manifolds, piping assemblies and high-pressure valves

02Aerospace accumulator charging and traceable, flight-certified pressure top-ups

03Field service and commissioning of oil-and-gas valves, pipelines and wellheads

04Laboratory research requiring a pulsation-free source for fatigue and burst testing

05Landing-gear strut and hydraulic accumulator pre-charging in aircraft bays

06Topping up weapons-system nitrogen reservoirs during defence maintenance sorties

In Depth

Testing sequence.

Operation Procedure

Setup & safety checks: verify cylinder valve cleanliness and remove any protective caps. Check all hose ferrules for damage; ensure quick-disconnect couplers lock securely.
Pressurization sequence: open the booster inlet valve; set drive air regulator to approximately 6-8 bar to start priming. When the outlet gauge reads cylinder pressure, close the inlet and gradually increase drive pressure until the desired test pressure is reached.
Testing & fine adjustment: use the micrometer regulator to adjust ±1 bar around the target. Monitor gauge stability for at least 30 seconds before starting timed leak tests.
Depressurization & changeover: close the drive air supply; open the front-panel vent to release residual pressure. Disconnect the test hose via the quick-disconnect for unit-under-test swap-out.
Maintenance: monthly lubrication of booster piston seals with Haskel-approved grease; quarterly inspection of the drive filter element, with replacement if pressure drop exceeds 0.5 bar.

Safety Notes

Dual redundant relief: primary relief at 405 bar, secondary burst disc at 430 bar for catastrophic backup
Mechanical pin stops on inlet and outlet gauges protect gauge internals from shock loading
Key-operated drive air isolation prevents unauthorized use
Design practice aligned with ISO 4413 for hydraulic system safety

Downloads

Catalog & drawings.

General catalog and engineering design drawings for the Portable Single Cylinder Nitrogen Trolley with Booster, available as PDF.

Engineering Design — Drawing 1

PDF

Design 02

Engineering Design — Drawing 2

PDF

Design 03

Engineering Design — Drawing 3

FAQ

Common questions.

Q01 What pressure can this trolley reach?

The two-stage Haskel pneumatic booster raises a standard 200-250 bar nitrogen cylinder charge to a maximum outlet pressure of 415 bar (6,000 PSI) at a 75:1 boost ratio, adjustable in approximately 1 bar increments via the micrometer regulator.

Q02 What drive air supply does the booster need?

A minimum 6 bar drive air supply, with an operating range up to 16 bar and a drive flow demand of approximately 60 SCFM. Drive air is filtered through a 40 µm sintered stainless steel filter before entering the booster.

Q03 How is the trolley protected against overpressure?

Dual redundant relief protection: a primary safety relief valve set at 405 bar and a secondary burst disc rated at 430 bar, plus mechanical over-range stops on each gauge to prevent shock-load damage.

Q04 What hose and connector fittings are supplied?

A 15 m stainless-steel braided hose (6 mm OD, 400 bar working pressure) terminated with ISO 7241 quick-disconnect fittings, enabling tool-free change-over between test rigs and cylinders.

Q05 How mobile is the trolley on site?

The powder-coated steel trolley measures 690 × 645 × 1,150 mm, weighs approximately 75 kg with hose and gauges fitted, and rolls on swivel casters with pneumatic wheels through narrow aisles, aircraft bays and outdoor sites.

Q06 What applications is it used for?

Industrial leak testing, aerospace accumulator and landing-gear strut charging, field service and pipeline/wellhead commissioning, and laboratory fatigue or burst-testing research.

Q07 Who manufactures this trolley?

Neometrix Engineering Pvt Ltd, Noida, India, supplying defence, aerospace and industrial customers worldwide.

Ready to configure your trolley?

Discuss hose lengths, gauge ranges, cylinder compatibility and delivery schedule for your Portable Single Cylinder Nitrogen Trolley with Booster with our engineering team.

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