NMX‑ACY‑72 / Rev 01 / Indigenisation · AFV Hydraulics / Noida · India 2026 · Capability Page

NMX-ACY-72 · ENGINEERED TO ORDER — INDIGENISED TO CUSTOMER DRAWING

T-72 actuating cylinder. The drawing is theirs. The line is ours.

The actuating cylinder for the T-72’s main equipment is not a hydraulic ram with a rod on the end. It is an electro-hydraulic assembly of roughly 150 parts, with twin electromagnets that brake the piston, coils wound to a specification, hardened and deep-freeze-treated stops, bronze bushes and felt glands. We take the customer’s drawing set and technical conditions and turn them back into a manufactured, proof-tested, inspected assembly — and into a second source for a part that currently has one.

Enquire — indigenisation Capability sheet (PDF)

Fig · 01 Representative render — an electro-hydraulic actuator of this class on the inspection bench. Not the customer’s design.

Assembly

~150individual parts

Sub-Assemblies

2body · cylinder head

Piston Braking

2electromagnets

Proof Test

Sub-assybefore final build

Inspection

Govt QAto customer’s conditions

ISO 9001 : 2015 DGAQA registered DRDO registered Indigenisation — Make in India Noida · India

Overview

A fleet outlives the factory that built it.

Armoured fleets are designed to serve for forty years. The supply chains behind them are not. A tank bought in one decade needs spares in the next four — and somewhere along the way the original plant retools, the material standard is withdrawn, the country of origin becomes a different kind of partner, and a component that was once a catalogue number becomes a problem.

Representative render — an electromagnet coil sub-assembly under inspection: a wound copper coil on a steel bobbin seated in a machined black steel casing, with a polished armature and spring on a lint-free cloth beside it and a dial indicator above

Fig · 02 The part nobody expects — the electromagnet that brakes the piston is a wound electrical unit (representative render)

The T-72’s main-equipment actuating cylinder is a good example of why that is harder than it sounds. Open it up and it is not a hydraulics job at all: it is two disciplines in one housing. The body is precision hydraulics — honed bores, bronze bushes, felt glands, a stack of sealing rings. The head is an electrical assembly: two electromagnets whose coils, armatures and pole pieces control how the piston brakes. Roughly a hundred and fifty parts, and the ones that matter most are the ones you cannot buy.

So indigenisation here is not copying a tube. It is reading a drawing set and a technical-conditions document written in another language and another era, decomposing the whole assembly, and then answering the hard question — what do you make a part from when the material standard it calls for no longer exists? Every substitution has to be justified, and then the finished unit has to pass the customer’s own acceptance regime, unchanged.

We are not selling a design. We are selling the distance between a drawing and a part you can fit.

Scope · Paper to Part

The whole assembly, not the easy half

The bill of material decomposed end to end — both sub-assemblies, the wound electromagnets, the hardened internals, the sealing schedule — then machined, heat-treated, wound, built, proof-tested and inspected. No sub-contracting of the difficult part.

Discipline · Their Conditions

Judged by the customer’s document

Acceptance is not against our opinion of the part. Sub-assemblies are hydrostatically proof-tested before they are built up, and the finished unit is inspected against the customer’s own technical conditions on the government quality-assurance route.

Delivered · The Wider Line

The record behind the offer

Neometrix holds prototype approval for a vehicle-based command post for the Indian Army, has commissioned a container-based mobile control and test system for a gas-turbine research establishment, and carries DGAQA inspection approval for oxygen charging and distribution equipment.

The Route

From their paper to a part that fits.

The diagram below is the indigenisation route — what we do, in order. It is deliberately not the customer’s design.

FIG · 03INDIGENISATION ROUTE · DECOMPOSE · MAP · MAKE · PROVE

Fig · 03 The route, not the design — the drawing set and technical conditions come from the customer and stay with them

Arc · 01

Decompose the Assembly

The drawing set is turned into a complete, levelled bill of material: top assembly, the two major sub-assemblies, every unit, component, standard part and consumable beneath them — roughly 150 line items. This is the unglamorous half of indigenisation and the half that decides whether the rest works: miss a felt gland or a spring washer and you find out at final assembly, on the last unit of the batch.

Arc · 02

Map What No Longer Exists

The technical conditions call up materials, wires, insulations and finishes to standards from another era and another country — some withdrawn, some never available here. Each one is mapped to a qualified, currently-available equivalent, and the substitution is justified on the property that mattered, not on the name that matched. This is where an indigenisation programme is actually won or lost.

Arc · 03

Make Both Halves

Precision machining of the hydraulic body and its internals, heat treatment to the specified hardness with deep-freeze treatment where the drawing demands dimensional stability, and — on the electrical side — coil winding in-house, armature and pole-piece work, and electro-hydraulic sub-assembly. Two disciplines, one line, one accountable supplier.

Arc · 04

Prove It Before You Build It

The regime is deliberately front-loaded: sub-assemblies are hydrostatically proof-tested before they are built into the unit, not after. A body that fails proof is a scrapped body; a body that fails after the coils, seals and internals are in is a scrapped assembly. The finished unit is then inspected against the customer’s technical conditions, on the government quality-assurance route.

Holding an indigenisation case for a legacy hydraulic or electro-hydraulic assembly? Send the drawing scope — feasibility view within two working days · [email protected]

Send the case

Scope

What we take on, and what we don’t.

The parameters of an indigenisation engagement. Configuration, quantities and the acceptance regime follow the customer’s case, not ours.

Full scope — expand

Engagement	Indigenisation and manufacture of an electro-hydraulic actuating cylinder for the main equipment of the T-72 tank · engineered to order against the customer’s drawing set and technical conditions
The Assembly	Electro-hydraulic actuator — not a plain hydraulic ram · approximately 150 individual parts · two major sub-assemblies: the cylinder body and the cylinder head
Electrical Content	Twin electromagnets controlling piston braking · wound coils on bobbins with armature, casing, pole piece and flux path · coil winding, insulation and impregnation in-house
Hydraulic Content	Honed body and covers · bronze bushes · felt glands · control valves and seats · PTFE and synthetic-rubber sealing schedule · springs and hardened internal stops
Special Processes	Precision machining · heat treatment to the drawing’s specified hardness with deep-freeze treatment for dimensional stability · surface finishing · controlled assembly
Material Engineering	Obsolete and foreign material, wire, insulation and finish specifications mapped to qualified, currently-available equivalents, each substitution justified against the governing property
Proof	Hydrostatic proof testing of sub-assemblies before final build, to the pressures and hold times the customer’s technical conditions define
Inspection & Acceptance	Final inspection against the customer’s technical-conditions document · government quality-assurance route · documentation and traceability per the customer’s case
Design Ownership	The drawing set and technical conditions are the customer’s and remain so. Neometrix supplies manufacture, proof, inspection and a second source — not a design licence
Qualification	ISO 9001:2015 · DGAQA registered · DRDO registered
Not In Scope	We do not publish, licence or re-sell the customer’s drawings or technical conditions, and we do not offer another party’s design as our own product
Status	Engineered to order — indigenised to the customer’s drawing · scoped case by case

PDF · 1 page

AFV Actuator Indigenisation — Capability Sheet

Indigenisation Case

Send the drawing scope — feasibility view in two working days

Variants

One discipline, many stranded parts.

The route is the same whatever the component is called. What changes is which half of it is hard.

Var · 01

This Cylinder

The T-72 main-equipment actuating cylinder on this page — ~150 parts, twin electromagnets, hydraulic body and electrical head — engineered to order against the customer’s drawing.

Var · 02

Other AFV Hydraulics

Actuators, rams, control valves, accumulators and hydraulic assemblies across legacy armoured fleets — the same decompose-map-make-prove route, scoped to the drawing set you hold.

Var · 03

Electro-Mechanical Assemblies

Where the stranded part is an electrical unit rather than a hydraulic one — wound solenoids and electromagnets, actuated valves, sensor and switch assemblies — coil work and magnetics are in-house.

Var · 04

The Wider Vehicle Line

Alongside our delivered vehicle work — command-post conversions with prototype approval, shelter and platform integration — and our hydraulic line for the flight line and the workshop.

Applications

Where it serves.

Wherever a fleet has outlived its supply chain.

A · 01Armoured fleet indigenisation — main-equipment hydraulics for the T-72 family

A · 02Base workshops & overhaul depots — a domestic source for stranded assemblies

A · 03Ordnance factories & DPSUs — second-source manufacture to an existing drawing set

A · 04Electro-hydraulic units — where hydraulics and wound magnetics sit in one housing

A · 05Obsolescence cases — withdrawn material and process standards needing qualified equivalents

A · 06Make-in-India indigenisation programmes — import substitution for legacy platforms

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 Whose design is this, and what exactly are you offering?

The design is the customer’s and stays the customer’s. The drawing set and the technical-conditions document come to us as part of the case; we do not own them, we do not licence them, and we do not offer them to anyone else. What we are offering is the manufacturing route: decomposing that paper into a bill of material, sourcing or making every part on it, building the assembly, proving it, and presenting it for inspection against the customer’s own acceptance regime. Put plainly — if you hold the drawing and cannot get the part, we are the line that turns one into the other.

Q · 02 Why is a hydraulic cylinder a 150-part job?

Because it is not really a hydraulic cylinder. Two of those parts are electromagnets, and an electromagnet is not a component you order — it is a wound assembly with a coil, an armature, a casing, a pole piece and a flux path, and each of those has parts of its own down to the insulation and the thread. Add the hydraulic side — bushes, glands, control valves, seats, springs, a full sealing schedule, hardened internal stops — and the count arrives at roughly a hundred and fifty. The number is not a boast. It is the reason this part is difficult to second-source, and the reason a supplier who can only do hydraulics cannot do it.

Q · 03 What actually makes indigenisation hard?

Not the machining. The materials. A drawing set from another era calls up steels, bronzes, wires, insulations, rubbers and finishes against standards that may have been withdrawn decades ago, or that only ever existed in the country of origin. You cannot simply pick the nearest modern grade with a similar name — you have to work out which property the original was chosen for, and match that. Sometimes it is strength; sometimes it is a friction pair with a mating part; sometimes it is a magnetic property that has nothing to do with the mechanical spec at all. Every substitution is an argument you have to be able to defend to the inspecting authority, and it is the substitutions — not the machining — that decide whether the part is accepted.

Q · 04 Why proof-test sub-assemblies before final build?

Economics and honesty, in that order. The customer’s conditions require the pressure-containing sub-assemblies to be hydrostatically proved before they are built up — and it is the right way round. A body that fails proof on its own is a scrapped body. The same body failing after the coils, the seals, the bushes and the internals have gone in is a scrapped assembly, and worse, it is a scrapped assembly that has already consumed the parts you had least of. Front-loading the test also means the failure tells you something clean: it is the body, not a build error you now have to go looking for.

Q · 05 Is a second source really worth the trouble?

Ask the question the other way round: what is a single source worth when it is thousands of kilometres away, in another jurisdiction, and the fleet is committed for another twenty years? A single-source part is a fleet-availability risk with a lead time attached, and the risk is not linear — it stays invisible for years and then arrives all at once. Indigenising it converts an import decision into a domestic one: the drawing stays where it is, the capacity moves closer, and the fleet stops depending on a relationship it does not control. That is the whole case, and it is why the requirement exists.

Q · 06 What is the status — and can you take our case?

This work is engineered to order. The assembly has been decomposed and the manufacturing route established against the customer’s drawing set and technical conditions; manufacture, proof and inspection are undertaken against contract. The record behind the offer is real and separate: prototype approval for a vehicle-based command post for the Indian Army, a commissioned container-based mobile control and test system for a gas-turbine research establishment, DGAQA inspection approval for oxygen charging and distribution equipment, and ISO 9001:2015, DGAQA and DRDO registration. Send us the drawing scope for your stranded assembly and a feasibility view returns within two working days. Work outside India is subject to Government of India authorisation and to the design owner’s rights.

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Vehicle & hydraulic engineering from Neometrix.

Engineered and manufactured at our Noida facility.

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Enquire — indigenisation Capability sheet (PDF) +91 7777 876 876

ISO 9001 : 2015 DGAQA · DRDO REGISTERED INDIGENISATION · MAKE IN INDIA MADE IN NOIDA · INDIA

T-72 actuating cylinder. The drawing is theirs. The line is ours.