Aeroflex Industries is a manufacturer of metallic flexible flow solutions - essentially, stainless steel hoses, joints and precision-engineered assemblies that safely carry solids, liquids and gases under extreme heat, pressure or corrosive conditions. Founded in 1993 and listed in 2023, the company was acquired in 2018 by Aeroflex Enterprises Limited, which set it on a path of moving steadily up the value chain - from selling bare hose to selling complete, plug-and-play fluid-handling systems. That recurring approach - start with a core manufacturing skill, then add in-house fittings, then build complete assemblies, then enter adjacent precision-engineering markets - explains everything the company has done since.
Business segments
A single precision-engineering engine, organised around one manufacturing philosophy - make the hose, make the fittings, then assemble the complete solution - now extending into two adjacent product categories built with the same metal-forming and welding DNA.
1. Flexible flow solutions: the core engine, now an integrated assemblies business
What began as a stainless steel hose manufacturer is now a maker of complete, ready-to-connect fluid-handling assemblies - and assemblies, not bare hose, now bring in more than half of revenue.
- Makes the hose from scratch - stainless steel strip is welded into a tube, then corrugated (hydro-formed or mechanically) to create flexible hose from ¼ inch to 14 inches in diameter, designed to handle high pressure, extreme temperatures and corrosive chemicals without leaking.
- Then adds the fittings in-house - the company welds or solders end-fittings - flanges, valves, quick-disconnect couplings - onto the hose to create a plug-and-play assembly, which earns margins of 22-25% compared with 15-19% for bare hose, so the business has deliberately pushed assemblies from roughly a third of revenue in FY24 to 52% in FY26.
- Sells to industries that cannot afford failure - steel and metals plants (22% of revenue), ports and terminals (17%), oil and gas (10%), and a growing set of new-age industries (24%) including aerospace, semiconductors, hydrogen and electric mobility, where a leaking hose can shut down a production line.
- The moat is time and certification - getting a new supplier approved takes 3-12 months for certification, another 2-4 months for product validation, and 1-2 months for commercial production, so customers do not switch lightly once a supplier is embedded.
2. Metal bellows: the precision-expansion-joint bet, built from scratch
A two-year-old product line that absorbs vibration and movement in piping systems - tiny volumes today, but margins on the miniature versions reach 30-35%.
- An expansion joint, not a hose - metal bellows are engineered from stainless steel, nickel alloys and Inconel, in diameters from 50 mm to 3,000 mm, designed to absorb the expansion, contraction and vibration that would otherwise crack rigid piping in power plants, refineries and aerospace applications.
- Started from zero in early 2024 - the board approved the project in November 2023, Phase I commercial production began in January 2025 with capacity for 120,000 pieces a year, and a separate miniature-bellows line (10-50 mm diameter) adds another 50,000 pieces of annual capacity for high-dynamic uses like robotics and semiconductors.
- A niche market with few players - global competitors are names like Witzenmann in Germany and Senior Flexonics in the U.S.; the company aims to replicate its 80:20 export-to-domestic split here too, replacing imports and exporting from India.
- Housed in a dedicated leased facility - the bellows are made in a 68,459 sq ft industrial shed at Ambernath, separate from the main Taloja campus, keeping this new engine ring-fenced while it scales.
3. Liquid-cooling skid assemblies: the data-centre play that just shipped its first units
Compact, plug-and-play cooling units for AI data centres - 617 skids sold in the first four months, with an order book of 2,100 and capacity racing to keep up.
- Cools the servers that run AI - each Secondary Fluid Network (SFN) skid assembly is a self-contained unit of stainless steel pipes, flexible hoses and expansion joints that distributes coolant in a closed loop through high-density server racks; every data-centre hall needs a set of these alongside its main cooling units.
- All the flow-control parts are made in-house - the flexible hoses, quick-disconnect couplings, valves and fittings that go into each skid come from Aeroflex’s own plants, which management says gives it a cost and speed advantage over competitors who buy those components from third parties.
- First commercial dispatch was in Q3 FY26 - in the last four months of the fiscal year the company sold 617 skids at an average realisation of about ₹3.3-3.4 lakh each, and capacity has already been raised from 2,000 pieces a year to 9,000, with a target of 15,000.
- One big American customer, and a structural tailwind - a long-term supply agreement with a leading U.S. corporation was signed in FY26, and the global market for data-centre liquid cooling was valued at roughly USD 5.65 billion in 2024, projected to reach USD 48.4 billion by 2034 as AI workloads demand more powerful cooling.
4. Hyd-Air Engineering: the fittings factory that also opens new end-markets
A wholly owned subsidiary acquired in April 2024 that makes hydraulic and pneumatic cylinders, valves and fluid connectors - it supplies Aeroflex’s assemblies business and sells directly to heavy-industry customers.
- Bought, not built - Aeroflex acquired 100% of this 1981-vintage precision-engineering company for about ₹17.2 crore in cash, gaining in-house manufacturing of hydraulic fittings that previously had to be sourced externally, which reduces lead times for the assemblies business.
- Serves heavy industry directly - roughly 65% of Hyd-Air’s revenue is domestic, with customers including Mazagon Dockyard, SAIL, BHEL, JSW and Arcelor Mittal; the remaining 35% is exported to names like Bosch Rexroth, giving Aeroflex entry into railways, shipbuilding and defence end-markets it did not previously reach.
- A mix of project and annuity revenue - the business supplies both one-off project orders and recurring aftermarket replacement parts, which provides some revenue stability alongside the project cycle.
- Operating from its own Pune factory - the Chakan facility sits on roughly 60,000 sq ft of land with room to expand, and has been upgraded with a quality lab, R&D centre and CNC machines since acquisition.
Group structure and partners
Aeroflex Industries is the listed operating company, majority-owned by Aeroflex Enterprises Limited, with one operating subsidiary and a network of R&D and customer partnerships that extend its reach.
- Aeroflex Enterprises Limited (formerly SAT Industries Limited), itself listed on BSE and NSE, held 59.84% of Aeroflex Industries as of March 2026, down slightly from 61.23% the year before after a preferential share issue to six non-promoter investors raised about ₹55 crore to fund expansion.
- Hyd-Air Engineering Private Limited is the sole operating subsidiary, acquired in April 2024 and held 100%; a small U.K. subsidiary was dissolved in March 2025 and was immaterial, contributing less than 0.02% of revenue in its last year.
- The company has no associate companies or joint ventures, and runs its CSR activities through the SAT Foundation, the group’s charitable arm.
- R&D collaborations are active with four Indian Institutes of Technology - Bombay, Indore, Guwahati and Ropar - supporting product development across hoses, bellows and liquid-cooling components.
- A long-term supply agreement with a leading U.S. corporation for data-centre liquid-cooling solutions was secured in FY26, and the company is actively looking for acquisitions - in the U.S. or Europe for forward integration into distribution, and in India for backward or adjacent manufacturing.