How can I get a quotation for the Hydraulic Test Rig HS-748?

You can request a quotation by contacting Neometrix Engineering Pvt Ltd through the website at https://neometrixgroup.com/products/hydraulic-test-rig-hs-748 or by reaching out via email or phone.

Electro-Hydraulic Aircraft Test Rig / HS-748 Aircraft Hydraulic Systems / 207 Bar · 94.5 LPM / Noida · India

HS-748 · ELECTRO-HYDRAULIC TEST RIG

Hydraulic Test Rig HS-748, one rig, two operators, eleven aircraft assemblies.

A self-contained, general-purpose electro-hydraulic test rig built to a tender-document specification for testing HS-748 aircraft hydraulic components — from cut-out valves and pressure relays to main and nose undercarriage jacks. Two fully independent hydraulic systems let two operators work at once, or combine for a single high-flow test.

Request proposal Full specifications

Hydraulic Test Rig HS-748 instrument and gauge panel - electro-hydraulic aircraft component test rig by Neometrix

Fig · 01 Photograph · dual-system pressure gauge and control panel, 19 gauges (Bar & PSI)

Qualification testing supported to:

DEF STAN STANAG MIL-SPEC

Max Output Pressure

207BAR

Max Output Flow

94.5LPM

Pressure Gauges

19NOS.

Reservoir

250L SS304

Power Supply

415V 3-PH

Overview

Built to test the tender document.

A self-contained, general-purpose electro-hydraulic test rig, engineered with safety and user-friendliness as the key design drivers, and built to address every requirement of the governing tender document.

Hydraulic Test Rig HS-748 rear view - reservoir, filtration and accumulator assembly by Neometrix

Fig · 02 Photograph · rear-mounted reservoir, filtration stack and accumulators

With this test rig, two operators can work independently, each on their own fully self-contained hydraulic system, or the two systems can be combined for a single higher-flow test. Every HS-748 aircraft hydraulic component specified in the tender document can be tested on this one rig.

The rig is developed for Hydraulic Oil MIL-H-5606 or equivalent, matching the fluid specification used in the HS-748 aircraft's own hydraulic systems, and is fitted with a static pressure intensifier for ease of operation at high pressures such as the 5000 PSI static pressure relay requirement.

Two operators, two independent systems, eleven aircraft assemblies — one rig built strictly to the tender document.

On the return line, three lines have been provided per the hydraulic circuit, and all pressure gauges read in both Bar and PSI for unambiguous readouts across metric and imperial test procedures.

Components Tested

Eleven HS-748 A/C assemblies.

The complete list of HS-748 aircraft hydraulic components that can be tested on this rig, as specified in the tender document.

Cut-Out Valve

Functional and proof testing of the aircraft hydraulic system cut-out valve.

Pressure Relay

Tested to the required static pressure of 5000 PSI per the tender document.

iii

Down-Lock & Unlock Assembly & Jack

Undercarriage down-lock and unlock assembly and jack function testing.

Main & Nose Jack

Main and nose undercarriage jack proof and function testing.

Accumulators

Hydraulic accumulator charge, proof and function testing.

Relief Valve

Relief valve cracking and reseat pressure calibration.

vii

N.R.V. (Non-Return Valve)

Non-return valve seal integrity and reverse-flow function testing.

viii

Modulator

Modulator valve function and pressure-response testing.

Flow Indicator Valve

Flow indicator valve function verification across the test envelope.

Brake Assembly

Aircraft brake assembly hydraulic proof and function testing.

Steering Selector Valve

Nose-wheel steering selector valve function testing.

Key Features

Dual systems, nineteen gauges.

Every feature is built around the tender document's requirement for two fully independent, fully instrumented test systems.

Both static and dynamic system: the rig supports both static proof-pressure testing and dynamic functional testing.
Static pressure intensifier: for ease of operation and generation of high-pressure test conditions such as the 5000 PSI pressure relay requirement.
MIL-H-5606 hydraulic fluid: the rig is developed for Hydraulic Oil MIL-H-5606 or equivalent.
Three return lines: provided on the return line per the attached hydraulic circuit diagram.
19 pressure gauges: Bar and PSI dual-scale indication — seven per system as required by the tender document, one on the return line, and two on the pneumatic line.

Two independent systems: can also be combined when a single higher-flow test is required.
Flow meter: one 0–30 LPM flow meter is provided.
250-litre SS304 reservoir: fitted with level gauge, filler breather, temperature switch, temperature gauge, drain valve, and related fittings per the circuit diagram.
Minimess pressure measurement ports: provided along with Minimess hoses for connections.
Pressure transmitters: three provided as part of the standard test rig.

Gallery

The rig, in the shop.

Photographs of the completed Hydraulic Test Rig HS-748 — instrument panel, reservoir and accumulator skid, pump/motor assembly, and open cabinet interior.

Hydraulic Test Rig HS-748 - reservoir and accumulator skid, rear view

Hydraulic Test Rig HS-748 - accumulator and filtration assembly, workshop view

Hydraulic Test Rig HS-748 - pump and motor skid with control cabinet

Hydraulic Test Rig HS-748 - close-up of dual-system pressure gauge panel

Hydraulic Test Rig HS-748 - three-quarter view of cabinet, gauge panel and work surface

Hydraulic Test Rig HS-748 - open cabinet interior showing gauges, valves and plumbing

Fig · 03–08 Photographs · full workshop documentation of the completed rig

Downloads

Product catalog.

Datasheet and product catalog for the Hydraulic Test Rig HS-748, available as PDF for procurement and technical review.

Catalog

Hydraulic Test Rig — Product Catalog

PDF

Specifications

Full technical parameters.

Key characteristics of the standard Hydraulic Test Rig HS-748 configuration, as specified in the governing tender document.

Max Output Pressure	207 bar
Max Output Flow	94.5 LPM
Line Size (with QCDCs)	1/2″ & 1/4″ (1 No. each)
Sampling Port	1/4″ with Minimess — 1 No.
Filtration Capacity	Up to 2 micron
Power Supply	3φ, 415 ± 5 V
Tank / Reservoir	250 litres, SS304
Pressure Gauges	19 Nos. (Bar & PSI dual scale) — 7 per system, 1 return line, 2 pneumatic line
Flow Meter	0–30 LPM — 1 No.
Pressure Transmitters	3 Nos.
Hydraulic Fluid	MIL-H-5606 or equivalent
Operator Capacity	2 independent operators
Hydraulic Systems	2, independent or combinable
Components Tested	11 HS-748 aircraft hydraulic assemblies

Applications

Where it's put to work.

This rig is built for one purpose — testing HS-748 aircraft hydraulic components to tender-document specification.

A · 01HS-748 aircraft hydraulic system overhaul and test facilities

A · 02Cut-out valve, pressure relay and modulator qualification against tender-document specifications

A · 03Down-lock/unlock assembly and main & nose jack proof testing

A · 04Accumulator, relief valve and non-return valve function verification

A · 05Brake assembly and steering selector valve testing

A · 06Dual-operator bench testing for MRO throughput at aircraft overhaul depots

In Depth

The complete technical read.

Engineering narrative for MRO planners, procurement teams, and quality officers evaluating the rig before commissioning.

1. Introduction

The Hydraulic Test Rig HS-748 is a self-contained, general-purpose electro-hydraulic test rig. Safety and user-friendliness are the key features of the design, and the rig has been engineered to address every requirement of the governing tender document. With this test rig, two operators can work independently, and all components specified in the tender can be tested on this single rig.

2. Components tested

The list of HS-748 A/C components tested on the rig is as follows:

i) Cut-out Valve.
ii) Pressure Relay — required static pressure of 5000 PSI.
iii) Down-Lock & Unlock Assembly & Jack.
iv) Main & Nose Jack.
v) Accumulators.
vi) Relief valve.
vii) N.R.V. (Non-Return Valve).
viii) Modulator.
ix) Flow indicator valve.
x) Brake Assembly.
xi) Steering selector valve.

3. Key features

Both static and dynamic system: supports both static proof-pressure and dynamic functional testing.
Static pressure intensifier: for ease of operation and high-pressure generation.
Hydraulic fluid: developed for Hydraulic Oil MIL-H-5606 or equivalent.
Return line: three lines provided per the attached hydraulic circuit.
Pressure gauges: 19 total, Bar and PSI indication — seven per system, one return line, two pneumatic line.
Two independent systems: can be combined as well when required.
Flow meter: one 0–30 LPM flow meter provided.
Reservoir: 250-litre SS304 with level gauge, filler breather, temperature switch, temperature gauge, drain valve and related fittings.
Pressure measurement ports: provided with Minimess hoses for connection.
Pressure transmitters: three provided as standard.

Technical specifications at a glance

Max Output Pressure	207 bar
Max Output Flow	94.5 LPM
Line Size (with QCDCs)	1/2″ & 1/4″ (1 No. each)
Sampling Port	1/4″ Minimess — 1 No.
Filtration Capacity	Up to 2 micron
Power Supply	3φ, 415 ± 5 V
Tank Size	250 litres

4. Applications

This machine is used mainly on the HS-748 aircraft, for functional and proof testing of its hydraulic components at MRO and overhaul facilities operating to the governing tender-document specification.

Conclusion

Neometrix's Hydraulic Test Rig HS-748 delivers a self-contained, dual-system electro-hydraulic testing solution purpose-built to a defence tender specification. By combining a static pressure intensifier, 19 calibrated gauges, and independent two-operator capability, the rig covers all eleven HS-748 aircraft hydraulic assemblies on a single, compact platform.

Video

See it running.

A short video walkthrough of the Hydraulic Test Rig HS-748.

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is the Hydraulic Test Rig HS-748?

The Hydraulic Test Rig HS-748 is a self-contained, general-purpose electro-hydraulic test rig built to test the hydraulic components of the HS-748 aircraft. It is designed and manufactured by Neometrix Engineering Pvt Ltd, India, to meet tender-document requirements for aircraft hydraulic component testing.

Q · 02 Which HS-748 aircraft components can be tested on this rig?

The rig tests eleven HS-748 aircraft assemblies: cut-out valve, pressure relay (static pressure requirement 5000 PSI), down-lock and unlock assembly and jack, main and nose jack, accumulators, relief valve, non-return valve (NRV), modulator, flow indicator valve, brake assembly, and steering selector valve.

Q · 03 Can two operators use the rig at the same time?

Yes. The rig provides two independent hydraulic systems so two operators can work on separate components simultaneously, and the systems can also be combined when a single high-flow test is required.

Q · 04 What is the maximum output pressure and flow of the rig?

The rig delivers a maximum output pressure of 207 bar and a maximum output flow of 94.5 LPM, with a static pressure intensifier available for high-pressure requirements such as the 5000 PSI pressure relay test.

Q · 05 What hydraulic fluid does the rig use?

The rig is developed for Hydraulic Oil MIL-H-5606 or equivalent, consistent with the fluid specification used in HS-748 aircraft hydraulic systems.

Q · 06 How many pressure gauges and instruments does the rig have?

Nineteen pressure gauges are provided, each reading in both Bar and PSI — seven per system as required by the tender document, one on the return line, and two on the pneumatic line — along with a 0-30 LPM flow meter and three pressure transmitters.

Q · 07 What is the reservoir specification?

A 250-litre SS304 stainless steel reservoir is fitted with a level gauge, filler breather, temperature switch, temperature gauge, drain valve, and related fittings, as shown in the accompanying hydraulic circuit diagram.

Q · 08 Does the Hydraulic Test Rig HS-748 comply with relevant standards?

Yes, the rig is designed to meet the requirements of the governing tender document and applicable defence and aerospace testing practices, including MIL-H-5606 hydraulic fluid compatibility and MIL-SPEC-aligned instrumentation.

Q · 09 Is the Hydraulic Test Rig HS-748 customizable?

Yes, Neometrix offers customized versions of the rig tailored to specific client requirements, additional aircraft component types, and site-specific tender specifications.

Q · 10 How can I get a quotation, and does Neometrix export the rig internationally?

Yes, Neometrix Engineering Pvt Ltd exports hydraulic aircraft test rigs to global customers in defence, aerospace, and industrial sectors. You can request a quotation via the contact form on this page or by reaching out to Neometrix directly by email or phone.

Get a proposal

Tell us your test-rig
and tender requirements.

We size the rig to your component list, pressure and flow requirements, and walk through commissioning and operator training with your engineering team.

Request proposal +91 7777 876 876

Hydraulic Test Rig HS-748, one rig, two operators, eleven aircraft assemblies.

Built to test the tender document.