UNIWELD Maschinenbau

What UNIWELD Maschinenbau does

UNIWELD Maschinenbau GmbH & Co. KG is a privately held German special-purpose machinery and plant construction company founded in 1955 and headquartered in Burbach, Siegerland. The company designs, engineers, manufactures, assembles, and commissions customer-specific production equipment for automated welding and testing applications, serving industrial customers in pipe manufacturing, container and tank construction, aerospace, wind tower fabrication, automotive, steel construction, and thermal energy storage. Its core product portfolio spans four categories: pipe mill equipment (hydrotesters capable of pipes up to 2,540 mm diameter and 1,000 bar pressure, submerged arc welding systems, pipe end processing machines, X-ray inspection systems, and large-scale handling systems for workpieces up to 1,000 tons), welding equipment (circumferential and longitudinal seamers, column and booms, welding gantries), standardized plants (turning rolls, turning and tilting positioners), and special solutions including complete production lines for heat accumulators and aerospace tank welding. The aerospace business uses proprietary Friction Stir Welding (FSW) technology to join advanced materials not processable by conventional arc welding, with UNIWELD supplying tank production lines for the European Ariane rocket program since 1985 (Ariane 4, Ariane 5, Ariane 5 ME, and Ariane 6).

The business model is project-based enterprise sales with long sales cycles: each engagement is a custom-engineered capital equipment project built to customer specifications, with dedicated sales phone lines, on-site engineering consultation, and full commissioning support. Revenue streams include one-time equipment sales (custom plants, special machinery, standardized equipment) and recurring professional services (maintenance contracts and retrofit/modernization work, including for competitor equipment). Distribution is exclusively direct enterprise sales with no reseller or marketplace channels. Marketing relies on the company website with downloadable technical brochures and presentations, supplemented by selective industry trade show participation (including the upcoming USE Urban Steel Expo 2027 in Düsseldorf). The company is owned and controlled by managing shareholder Thomas Jünger (since 2001) and operates a small group structure including a Croatian operating subsidiary (Uniweld Strojevi d.o.o.) and a minority stake in MIG-O-MAT Mikrofügetechnik GmbH, a German micro-joining specialist.

Name

UNIWELD Maschinenbau

Legal name

UNIWELD Maschinenbau GmbH & Co. KG

Website

https://uniweld-group.com

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Special-Purpose Industrial Welding and Testing Machinery

NAICS

Metalworking Machinery Manufacturing (33351), Other General Purpose Machinery Manufacturing (3339), All Other Miscellaneous General Purpose Machinery Manufacturing (333998)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), Special Industry Machinery, Nec (3559), Steel Pipe & Tubes (3317), Aircraft Engines & Engine Parts (3724)

akta.pro industry

PRIMARYIMAIACAD

Welding, Fabrication & Field Machining Services (On-site)

Industrials, Manufacturing & Construction/Industrial Services & Facility Operations/Industrial Maintenance & Plant Shutdown Services

SECONDARYIMAHANAG

Pump & Compressor Packages (Skids, Booster Sets)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Pumps & Compressors (Fluid & Gas Handling)

SECONDARYIMABADAJ

Engine Modules & Hot-Section Components (Compressors/Turbines/Combustors)

Industrials, Manufacturing & Construction/Aerospace & Defense Manufacturing/Aerospace Engines & Propulsion Systems

SECONDARYIMAKABAI

Pipe & Tube Manufacturing (Seamless & Welded OCTG/Line Pipe/Structural Tube)

Industrials, Manufacturing & Construction/Metals & Mining/Steel Production & Processing

Keywords

• Custom welding machinery
• Automated welding systems
• Pipe testing equipment
• Friction stir welding
• Special-purpose machinery

Headquarters

HQ city

Burbach

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Custom Special Machinery and Plant Construction: Design, manufacturing, assembly, and commissioning of customer-specific special machinery and production plants for welding, testing, and automation applications. Revenue is project-based with long sales cycles and custom engineering for each order.
2. Production Lines for Aerospace: Delivery of complete manufacturing lines for aerospace tank production (Ariane rocket programs). Includes friction stir welding systems, milling machines, transport and handling systems. Major project deliveries in 1989, 2009, 2015, and 2018.
3. Service, Maintenance and Retrofit: Maintenance contracts, on-site service, repair, and modernization of machines and plants (including competitors' equipment). Remote maintenance capabilities. Revenue from ongoing service relationships and one-time retrofit projects.
4. Standard Plant Equipment: Standardized equipment including turning rolls, turning and tilting positioners, column and booms, and welding gantries sold as catalog products with customization options.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

UNIWELD Maschinenbau designs, engineers, manufactures, assembles and commissions custom special-purpose machinery and complete production plants for automated welding and testing applications. Its portfolio covers pipe mill equipment (hydrotesters, submerged arc welding systems, pipe end processing, X-ray inspection, handling systems), welding equipment (longitudinal and circumferential seamers, column and booms, welding gantries), standard plants (turning rolls, positioners), and special solutions including Ariane rocket tank production lines built around Friction Stir Welding.

Product overview

UNIWELD Maschinenbau is a special-purpose machinery and plant construction company offering automated welding and testing technology solutions. The product portfolio consists of four main solution categories: (1) Pipe Mill Equipment including Hydrotesters, Submerged Arc Welding (SAW) systems, Pipe End Processing, X-Ray Equipment, and Handling Systems; (2) Welding Equipment including Circumferential and Longitudinal Welding Systems, Column and Booms, and Welding Gantries; (3) Standard Plants including Turning Rolls and Turning and Tilting Positioners; and (4) Special Solutions for aerospace (Ariane rocket tanks via Friction Stir Welding), container production lines, heat accumulator production lines, and custom special-purpose machinery. The company provides everything from one source: engineering, manufacturing, assembly, and commissioning, along with maintenance contracts and retrofit services for modernization of existing equipment.

Differentiator

Problem solved

Functional benefit

Products and services

• Hydrotester (Hydrostatic Pressure Testing Equipment) Large-scale water pressure testing equipment for welded pipes, supporting diameters from 114.3 mm to 2,540 mm (4 to 100 inches), lengths 6,000–24,000 mm, and test pressures up to 1,000 bar; used by welded pipe manufacturers and pipe mills worldwide.
• UP-Anlagen (Submerged Arc Welding / SAW Systems) Automated submerged arc welding systems combining high deposition rates and seam quality with automated process control, including automatic seam tracking, process data recording and documentation, and workpiece handling; for pipe mills and large welded fabrication.
• Rohrendenbearbeitung (Pipe End Processing Machines) Machining equipment for processing pipe ends with automated handling for loading/unloading; performs facing or customer-specific chamfers to prepare pipe ends for subsequent welding and testing.
• Röntgenanlagen (X-Ray Inspection Systems for Large Pipes) X-ray testing equipment for large pipes, comprising pipe carriages with loader/unloader, rotating castors for positioning, and controlled traversing units equipped with X-ray tube, image intensifier and detector.
• Handling Systems and Automation Equipment for manipulation of pipes and workpieces, including turning rolls for workpieces up to 1,000 tons with optional self-adjusting and anti-drift mechanisms, and tilting devices for pipe sections up to 100 tons and 11 m diameter.
• Rundnahtanlagen (Circumferential Welding Equipment) Welding systems for circumferential seams supporting all conventional welding procedures, with optional full automation and process data recording/documentation.
• Längsnahtanlagen (Longitudinal Seamer) Welding systems for longitudinal seams using all conventional welding procedures, with optional full automation including process data recording and documentation and automated plate feeding/unloading for cylindrical sections or steel plates.
• Automatenträger und Schweißportale (Column and Booms and Welding Gantries) Custom-designed column and boom systems and welding gantries tailored to customer-specific requirements, equipped with appropriate welding technology for efficient manufacturing with high seam quality.
• Rollenbock-Drehvorrichtungen (Turning Rolls) Stationary or mobile turning rolls with motor-driven or manual spindle diameter adjustment, available with self-adjusting capability and optional anti-drift system; can be supplied as complete systems with column and boom or welding gantry.
• Dreh-Kipp-Tische und Positioniervorrichtungen (Turning and Tilting Positioners) Heavy-duty turning and tilting positioners with torsion-resistant weldment machine stands; available as turning/tilting positioners, double stand manipulators, rotating welding positioners, and horizontal rotating devices for loads up to 250 tons.
• Aerospace Tank Production Lines (Friction Stir Welding for Ariane) Complete aerospace tank welding and production line equipment using Friction Stir Welding (FSW), plus milling machines and transport/handling systems, for European Ariane rocket programs; UNIWELD has supplied the European space program for over 30 years.
• Behälter-Fertigungslinien (Container Production Lines) Complete production lines for tank and container manufacturing, including production of individual container sections, assembly stations, and testing facilities, with production concept tailored to container size, geometry and quantity.
• Speicherfertigung (Heat Accumulator Production Lines) Complete production lines for heat accumulator / thermal storage manufacturing, including metal plate storage with automatic unloader, transport equipment, longitudinal and circumferential seamers, nozzle welding equipment, testing facilities, and robot systems for high automation.
• Sondermaschinen (Custom Special-Purpose Machinery) Bespoke special-purpose machinery for automating welding-related production processes in the metal-processing industry; applications include aerospace, automotive, pipe production, container production, and heating vessel/apparatus construction.
• Wartungsverträge (Maintenance Contracts) Maintenance services delivering long machine lifespan through early defect detection, optimal availability, predictable downtime, increased reliability and efficiency, on-site consultation, and extended service life; offered as ongoing service contracts.
• Retrofit (Modernization of Machines and Plants) Modernization of machines and plants including foreign-manufacturer equipment, covering performance increases via latest control and drive technology, CE marking, remote maintenance, and upgrade of existing equipment.

Quantifiable outcome

• Hydrotesters capable of testing pipe diameters from 114.3mm to 2,540mm at pressures up to 1,000 bar
• +2 more outcomes

Named customers1 record

Segments8 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Two partnerships are on record, tiered core.

• MIG-O-MAT Mikrofügetechnik GmbHcoreStrategic or Co-development Partner · 1 January 2008Acquired shares in 2008. German company specializing in micro-joining technology. Complements UNIWELD's welding technology portfolio with additional expertise in fine joining applications.
• Uniweld Strojevi d.o.o.coreStrategic or Co-development Partner · 1 January 2001Croatian subsidiary company wholly acquired in 2001 along with UNIWELD Maschinenbau by managing shareholder Thomas Jünger. Part of the UNIWELD group structure for international operations.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• EWM GmbH: German welding technology manufacturer based in Siegerland (close to UNIWELD's Burbach HQ) offering welding machines, torches and automated welding systems. Directly comparable German Mittelstand peer in welding equipment.
• Fronius International: Austrian manufacturer of arc welding equipment, welding automation cells and custom robot-based welding systems. Closely comparable product overlap in automated welding and project-engineered special machinery for industrial customers.
• CLOOS Schweisstechnik: German welding automation specialist (now part of ESAB) designing custom robot and special-machine welding cells for automotive, commercial vehicles and general industry. Highly comparable on engineering-driven, project-based, German Mittelstand special welding machinery.
• Schlatter Industries: Swiss special-purpose machinery builder focused on resistance welding systems and welding lines for mesh, reinforcement and industrial applications. Similar business model of project-engineered welding automation for industrial customers.
• HGG Profiling Solutions: Netherlands-based specialist in pipe and vessel cutting, profiling and welding equipment for the shipbuilding, process and offshore industries. Comparable niche player in pipe/tank fabrication machinery.

Broad incumbents

• ESAB Corporation: Global leader in welding and cutting equipment, offering a broad portfolio of welding machines, automation and filler metals. Overlaps with UNIWELD's welding automation business but at much greater scale and breadth, including the acquired CLOOS special-machinery line.
• Trumpf Group: Global leader in machine tools, laser technology and metalworking equipment including laser welding systems. Much broader product portfolio than UNIWELD but competes in metalworking automation for industrial customers.
• Lincoln Electric Holdings: Global welding products and solutions company serving industrial customers with welding equipment, consumables and automation. Much larger than UNIWELD but addresses the same industrial welding automation end market.

Others

• SMS group: German metallurgical plant and machinery engineering company for steel and non-ferrous metals production. Sits several tiers above UNIWELD in scale but operates in adjacent special-purpose plant construction for pipe and tube producers, a shared customer base.

Emerging players

• BVU Prüftechnik: German specialist in hydrostatic testing machines for pressure vessels and pipes. Closely comparable in the hydrotester niche that UNIWELD addresses in its pipe mill product line.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about UNIWELD Maschinenbau