{"id":1018,"date":"2026-05-02T21:50:34","date_gmt":"2026-05-02T21:50:34","guid":{"rendered":"https:\/\/delmas-tubes.com\/empresa\/"},"modified":"2026-05-11T10:05:39","modified_gmt":"2026-05-11T10:05:39","slug":"company","status":"publish","type":"page","link":"https:\/\/delmas-tubes.com\/en\/empresa\/","title":{"rendered":"Delm\u00e0s \u00b7 Manufacturer of precision welded steel tube since 1956 | Company"},"content":{"rendered":"
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\n\n
\n
\n
\n
Delm\u00e0s factory \u00b7 Barcelona \u00b7 Exterior photograph<\/div>\n <\/div>\n <\/div>\n
<\/div>\n
\n
\n
Manufacturer of precision welded steel tube \u00b7 Founded in 1956 \u00b7 Barcelona, Spain<\/div>\n

Delm\u00e0s: the specialist in the small diameter that is hardest to manufacture.<\/h1>\n

A family business founded in 1956. Over 65 years manufacturing precision welded and calibrated steel tube in small diameters (3\u201325 mm) with the exact tolerances, finishes and supply formats that every industrial application needs.<\/p>\n

\n Explore our product ranges <\/svg><\/a>\n Contact our technical team<\/a>\n <\/div>\n
\n
<\/svg><\/span>Founded<\/span>1956<\/span><\/div>\n
<\/svg><\/span>Experience<\/span>+65 years<\/span><\/div>\n
<\/svg><\/span>Diameters<\/span>3\u201325 mm<\/span><\/div>\n
<\/svg><\/span>Energy<\/span>100% renewable<\/span><\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n\n
\n
\n
<\/svg><\/span>
Founded in 1956<\/div>
+65 years of specialisation<\/div><\/div><\/div>\n
<\/svg><\/span>
Diameters 3\u201325 mm<\/div>
The market's most demanding niche<\/div><\/div><\/div>\n
<\/svg><\/span>
100% renewable energy<\/div>
On-site self-consumption photovoltaic plant<\/div><\/div><\/div>\n
<\/svg><\/span>
Certificate with every delivery<\/div>
EN 10305 \u00b7 ASTM 513 \u00b7 SAE \u00b7 JIS G3445<\/div><\/div><\/div>\n <\/div>\n<\/div>\n\n\n
\n
\n
01 \u00b7 ABOUT US<\/span>Family business \u00b7 Barcelona \u00b7 Since 1956<\/span><\/div>\n
\n
\n

There are tube manufacturers for everything. And then there is Delm\u00e0s.<\/em><\/h2>\n
\n

A family business founded in 1956 with more than 65 years providing solutions for the underserved market niches that need a tube fitted to their specific requirements \u2014 niches that the large manufacturers do not address. Precision welded and calibrated steel tube in small diameters (from 3 mm to 25 mm) with the exact tolerances, finishes and supply formats every industrial application needs.<\/p>\n

We are the most specialised supplier in the diameter range where precision is most critical, competition is scarcest and failure has real consequences.<\/p>\n <\/div>\n

See sectors and applications<\/div>\n <\/div>\n
\n
\n
\n
\n <\/svg>\n <\/div>\n Company video \u00b7 Delm\u00e0s<\/span>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n \n
\n

1956 \u2013 2026: 65 years manufacturing where others cannot reach<\/em>.<\/h2>\n

Delm\u00e0s was founded in 1956 as a family business with a clear vocation: manufacturing precision steel tube in the diameters that the most demanding industrial market needed and where the major companies did not reach \u2014 they were too small or too complex for their structure. Over more than six decades, we have refined welding and calibration processes in small diameters where standard tube manufacturing processes give up and where one hundredth of a millimetre determines whether the finished product works or fails.<\/p>\n

Today, our tube is part of products that millions of people use every day: the mobility systems that roll in silence, the baby prams that weigh the minimum without compromising safety, the automotive components that fit perfectly, the gas dampers that open your car bonnet, the designer lamps that chrome-plate without a single visible imperfection. Small in diameter, infinite in reach.<\/p>\n <\/div>\n\n \n

\n
<\/div>\n
\n
\n
1956<\/span><\/div>\n
\n
1956<\/div>\n

Founded as a family business in Barcelona. Immediate specialisation in precision tube in small diameters.<\/p>\n <\/div>\n <\/div>\n

\n
80s<\/div>\n
\n
1980s<\/div>\n

Consolidation in the automotive and mobility markets. First agreements with European OEMs and Tier 1 suppliers.<\/p>\n <\/div>\n <\/div>\n

\n
00s<\/div>\n
\n
2000s<\/div>\n

Investment in high-precision calibration technology. Start of mirror-bore manufacturing. Expansion to global markets.<\/p>\n <\/div>\n <\/div>\n

\n
Today<\/div>\n
\n
Today \u00b7 2026<\/div>\n

Three technical ranges (PREMIUM \u00b7 OPTIM \u00b7 PRECISE), on-site photovoltaic plant and global reach. World reference in small-diameter precision tubing.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n \n

\n
Delm\u00e0s manufacturing plant \u00b7 Barcelona \u00b7 Interior view<\/div>\n <\/div>\n <\/div>\n<\/section>\n\n\n
\n
\n
02 \u00b7 MISSION & VALUES<\/span>What defines us as a company<\/span><\/div>\n
\n

The material must adapt to the design. Not the other way around.<\/em><\/h2>\n

We reject the standard catalogue model and commit to custom manufacturing as the only approach that respects the client's engineering. Our mission is to be the technical partner that enables the world's most demanding manufacturers to develop better products thanks to a tube manufactured exactly as they need it.<\/p>\n <\/div>\n

\n
\n <\/svg><\/span>\n

Specialisation to the hundredth<\/h3>\n

We have spent 65 years manufacturing in one niche. We are not a generalist supplier that also makes small diameters: we are the specialist that only does this, and does it better than anyone in its range.<\/p>\n <\/div>\n

\n <\/svg><\/span>\n

The client's design first<\/h3>\n

We begin where the client's drawing ends. Every order starts with a technical conversation, not with a catalogue. Diameter, wall thickness, finish, supply format: everything is defined from the application, never the other way around.<\/p>\n <\/div>\n

\n <\/svg><\/span>\n

Trust built with data<\/h3>\n

Product certificate with every delivery. Full material traceability. Technical specification sheets jointly defined and agreed. Trust is not declared: it is documented.<\/p>\n <\/div>\n

\n <\/svg><\/span>\n

Commitment to sustainability<\/h3>\n

We operate on 100% renewable energy and have an on-site photovoltaic power generation plant for self-consumption. Not as a marketing argument: as a company conviction and a real competitive advantage for our clients.<\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n\n

\n
\n
03 \u00b7 SECTORS<\/span>Applications and markets where Delm\u00e0s operates<\/span><\/div>\n
\n

Where precision is not optional, you will find a Delm\u00e0s tube.<\/em><\/h2>\n <\/div>\n
\n\n \n
\n
\n
Mobility Sector \u00b7 Precision wheels and axles<\/div>\n <\/div>\n
\n
\n <\/svg><\/span>\n

Mobility<\/h3>\n OPTIM Range<\/span>\n <\/div>\n

If it has wheels, axles, rollers or anything that rotates, there is probably a Delm\u00e0s tube inside its mechanism. The supermarket trolley that rolls in silence, the hospital bed, the suitcase that turns with precision, the baby pram that weighs the minimum, the conveyor belt that never stops, the motorbike that damps. Mobility is not a sector, it is everything that moves.<\/p>\n <\/div>\n <\/div>\n\n \n

\n
\n
Automotive Sector \u00b7 OEM Tier 1 \u00b7 Precision components<\/div>\n <\/div>\n
\n
\n <\/svg><\/span>\n

Automotive<\/h3>\n PRECISE Range<\/span>\n <\/div>\n

Inside every vehicle there is more precision steel tube than meets the eye. Headrest guides, the gas strut that holds the boot lid open, the engine cooling circuit, the rear blind mechanism. We work with the most demanding Tier 1 suppliers in the world \u2014 and our coil supply eliminates up to 15% of scrap on their automated lines. From prototype to serial production.<\/p>\n <\/div>\n <\/div>\n\n \n

\n
\n
Home Sector \u00b7 Lamps \u00b7 Design \u00b7 Chrome plating<\/div>\n <\/div>\n
\n
\n <\/svg><\/span>\n

Home<\/h3>\n PREMIUM range<\/span>\n <\/div>\n

The steel tube you see in a designer lamp, in the chrome drawer handle, in an office shelving unit must reach the chrome bath without a single surface defect. The PREMIUM range leaves our factory with that bright surface already done \u2014 straight to the galvanic finish, no prior polishing, no rejects.<\/p>\n <\/div>\n <\/div>\n\n \n

\n
\n
Engineering Sector \u00b7 Hydraulic cylinders \u00b7 Gas springs<\/div>\n <\/div>\n
\n
\n <\/svg><\/span>\n

Engineering<\/h3>\n PRECISE Range<\/span>\n <\/div>\n

Hydraulic cylinders, industrial gas springs, closure mechanisms, pneumatic actuators. In engineering, the tube bore is the mechanism's working surface \u2014 and it has to be perfect. The PRECISE range directly replaces seamless extruded tube with a smooth bright bore that is technically equivalent and at a cost 40\u201380% lower.<\/p>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>\n<\/section>\n\n\n

\n
\n
04 \u00b7 SUSTAINABILITY<\/span>Not just a paper certificate, but a way of manufacturing<\/span><\/div>\n
\n
\n 100%<\/span>\n
\n Renewable energy<\/span>\n Since 2006 \u00b7 On-site self-consumption photovoltaic plant<\/span>\n <\/div>\n <\/div>\n

At Delm\u00e0s, sustainability is not a section of the annual report. It has been a vocation since 2006 and is the result of concrete operational decisions. Our plant runs entirely on renewable energy and has two photovoltaic generation installations for self-consumption.<\/p>\n <\/div>\n\n \n

\n
\n <\/svg><\/span>\n

100% renewable energy<\/h3>\n

All the energy consumed in our manufacturing process comes from renewable sources. It is not carbon-credit offsetting: it is the energy that powers every metre of tube we manufacture.<\/p>\n <\/div>\n

\n <\/svg><\/span>\n

On-site photovoltaic generation<\/h3>\n

We have two power generation installations at our plant. On-site generation reduces our dependence on the grid and allows us to provide more direct energy traceability.<\/p>\n <\/div>\n

\n <\/svg><\/span>\n

Data for your ESG reports<\/h3>\n

We can provide information on the energy origin of our production so you can include it in your carbon footprint reports and large-account sustainability questionnaires.<\/p>\n <\/div>\n <\/div>\n\n \n

\n
\n
Photovoltaic installation \u00b7 Delm\u00e0s factory roof \u00b7 Barcelona<\/div>\n <\/div>\n
\n

Why it matters to your company<\/p>\n

Supplier sustainability is no longer a secondary criterion. For global OEM manufacturers, the supply chain's carbon footprint is an audited KPI, a homologation criterion and a growing contractual requirement. When you choose Delm\u00e0s, the renewable origin of our energy becomes part of your supply chain \u2014 with real data for your ESG reports and large-account audits.<\/p>\n

If your company has Scope 3 carbon footprint reduction commitments, choosing suppliers with renewable energy is one of the most direct ways to reduce it without changing your manufacturing process. Sustainability is also custom-made. Ours fits with yours.<\/strong><\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n\n

\n
\n
05 \u00b7 CERTIFICATIONS<\/span>Quality documented with every delivery<\/span><\/div>\n
\n

The product certificate is not an optional document: it is the standard delivery.<\/em><\/h2>\n

Every order leaves our plant with its corresponding material certificate including dimensional, mechanical and chemical composition values.<\/p>\n <\/div>\n\n \n

\n \n \n \n \n \n \n \n
Range<\/th>\n European standards<\/th>\n American standards<\/th>\n Other standards<\/th>\n <\/tr>\n <\/thead>\n
PREMIUM<\/td>\n EN 10305-3 \u00b7 EN 10305-5<\/td>\n ASTM 513 T2 and T4 \u00b7 SAE J526<\/td>\n \u2014<\/td>\n <\/tr>\n
OPTIM<\/td>\n EN 10305-3 \u00b7 EN 10305-2 \u00b7 EN 10305-5<\/td>\n SAE J525 \u00b7 SAE J356 \u00b7 ASTM 513 T4<\/td>\n \u2014<\/td>\n <\/tr>\n
PRECISE<\/td>\n EN 10305-2 \u00b7 EN 10305-5<\/td>\n ASTM 513 T5 and T6<\/td>\n JIS G3445<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n \n
\n
\n
EN 10305-2<\/div>\n

Precision tube with calibrated bore. Tolerances of inner and outer diameter, mechanical properties and inner surface finish. Reference for gas springs, hydraulic and pneumatic cylinders.<\/p>\n <\/div>\n

\n
EN 10305-3<\/div>\n

Precision tube with calibrated outer diameter. Defines outer diameter tolerances and straightness. For galvanic treatments or assemblies with precise outer fit.<\/p>\n <\/div>\n

\n
EN 10305-5<\/div>\n

Non-circular section (square, rectangular, hexagonal). Defines tolerances, mechanical properties and finish for special geometries.<\/p>\n <\/div>\n

\n
ASTM 513<\/div>\n

American standard for welded steel tube with machined bore. T2\/T4 \u2248 PREMIUM\/OPTIM; T5\/T6 \u2248 PRECISE. Essential for projects with North American homologation.<\/p>\n <\/div>\n

\n
SAE J525 \/ J526 \/ J356<\/div>\n

Society of Automotive Engineers. Widely used in automotive and supply chains with American OEMs and their Tier 1 suppliers. Complementary to ASTM.<\/p>\n <\/div>\n

\n
JIS G3445<\/div>\n

Japanese standard for welded steel tube for mechanical use. Relevant for projects with Japanese-origin clients or specifications and distributors in Asian markets.<\/p>\n <\/div>\n <\/div>\n\n \n

\n
\n <\/svg><\/span>\n
\n

EN 10204 Product Certificate<\/h3>\n

The product certificate confirms, for every batch, that the tube meets the agreed specifications. It is not an additional document \u2014 it is our standard delivery.<\/p>\n

\n <\/svg> Batch identification<\/span>\n <\/svg> Chemical composition<\/span>\n <\/svg> Mechanical properties<\/span>\n <\/svg> Verified dimensions<\/span>\n <\/svg> Applicable standard<\/span>\n <\/svg> Quality manager signature<\/span>\n <\/div>\n <\/div>\n <\/div>\n
\n
\n
\n Standard<\/span>\n
EN 10204-2.2<\/div>\n

Standard certificate issued with every delivery. Includes the test values from the batch manufacturing process.<\/p>\n <\/div>\n

\n High demand<\/span>\n
EN 10204-3.1<\/div>\n

When the project requires greater demand. Tests carried out directly on the material supplied, with independent validation.<\/p>\n <\/div>\n <\/div>\n

\n <\/svg><\/span>\n

For distributors: we can issue certificates compliant with the specific standard your homologation process requires, regardless of geographic location.<\/p>\n <\/div>\n <\/div>\n <\/div>\n\n

Request technical information or standards sheet<\/div>\n <\/div>\n<\/section>\n\n\n
\n
\n
\n
\n Delm\u00e0s \u00b7 Small-diameter specialist \u00b7 Since 1956<\/span>\n

We manufacture the tube your application needs<\/em>.<\/h2>\n

Not the catalogue tube. The exact tube: diameter, wall, finish and format defined by your engineering. Tell us the application and we develop it together.<\/p>\n