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UNIWELD – Fertigung

Special machinery and plant engineering for automated welding and testing technology, from design to commissioning.

UNIWELD Logo

UNIWELD Maschinenbau GmbH & Co. KG

Burbach (DE) · Uniweld Strojevi d.o.o. (Croatia) · MIG-O-MAT Mikrofügetechnik GmbH (DE)New on Amplifa

1955Founded
160Employees (group)
ca. 20 Mio. €Annual revenue (group)
bis 1.000 tWorkpiece weight, turning devices
bis 1.000 barTest pressure, hydrostatic testers

About UNIWELD

UNIWELD Maschinenbau GmbH & Co. KG, headquartered in Burbach, is an internationally active company with over 60 years of experience in special machinery and plant engineering. Key areas are automated welding and testing technology, including submerged arc welding systems, circumferential and longitudinal seam systems, hydrostatic testers, pipe end machining machines, X-ray systems as well as turning and positioning devices for workpieces up to 1,000 t. For over 30 years, UNIWELD has supplied highly precise production lines for the aerospace industry, in particular for the European Ariane programme; the tank welding systems operate with Friction Stir Welding (FSW) for materials that cannot be welded by arc processes. Further areas of application include pipe manufacturing, vessel and plant engineering, wind tower manufacturing, structural steelwork and shipbuilding. The group covers design, production and commissioning from a single source and offers retrofit, maintenance contracts and remote maintenance.

Site
Burbach
Processes
Submerged arc welding technology (SAW systems, automated, seam tracking, multi-wire welding heads), Friction Stir Welding (FSW) / tank welding systems, Circumferential seam welding (circumferential seam systems, all common welding processes), Longitudinal seam welding (longitudinal seam systems/longitudinal seam clamping benches for, Pipe end machining (facing, chamfering), Hydrostatic pressure testing (water pressure test equipment for welded pipes), X-ray inspection of large-diameter pipes, Milling system engineering (milling systems, spiral pipe milling systems, bandage milling systems)
Materials
Steel, Sheet metal, High-technology materials (not arc-weldable, for FSW), FSW / Friction Stir Welding
Certificates
DIN EN ISO 9001:2000, ISO 9001
Founded
1955
Employees
160 (group, per
Industries
Pipe manufacturers, Vessel engineering, Wind tower manufacturing, Structural steelwork, Aerospace, Automotive industry
  1. 01

    Design and development

  2. 02

    Manufacturing and assembly

  3. 03

    Commissioning

  4. 04

    Retrofit / maintenance / remote maintenance

Materials & Processes

St

Steel

Material for submerged arc welding systems in structural steelwork, large-diameter pipe manufacturing and shipbuilding.

Blech

Sheet metal

Base material for longitudinal seam clamping benches for the production of cylindrical can sections and sheet panels.

FSW

FSW / Friction Stir Welding

Joins high-technology materials that cannot be welded by conventional arc welding processes.

Locations

Standort Burbach

Burbach

DE

Headquarters / manufacturing

Materials
Steel, sheet metal
  • Submerged arc welding systems
  • Hydrostatic testers
  • X-ray systems
  • Pipe end machining machines
  • Circumferential seam welding systems
  • Longitudinal seam welding systems / longitudinal seam clamping benches
  • Welding gantries and carriage columns
  • Turning rolls
  • Turn-tilt tables
  • FSW tank welding systems
  • Milling systems
  • Vessel/tank production lines
Standort Uniweld Strojevi d.o.o.

Uniweld Strojevi d.o.o.

HR

Component manufacturing, assembly of subassemblies, supply

MIG-O-MAT Mikrofügetechnik GmbH

DE

Plasma welding, micro-flame brazing equipment, automation

Components & Systems

Hydrostatic tester
Hydrostatic testerWater pressure testing · pipe manufacturers
Submerged arc welding system
Submerged arc welding systemSubmerged arc welding · large-diameter pipe manufacturing
Pipe end machining machine
Pipe end machining machineMachining · pipe manufacturing
Tank welding system for Ariane
Tank welding system for ArianeFSW · aerospace

Inside the production

Manufacturing in Burbach
Manufacturing in Burbach

Industries

Pipe manufacturersVessel engineeringWind tower manufacturingStructural steelworkAerospaceAutomotive industryContainer manufacturingBoiler, vessel and apparatus engineeringShipbuildingLarge-diameter pipe manufacturing

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Submerged arc welding technology (SAW systems, automated, seam tracking, multi-wire welding heads)Joining–––––
Friction Stir Welding (FSW) / tank welding systemsJoining––––high-technology materials, not weldable by arc welding
Circumferential seam welding (circumferential seam systems, all common welding processes)Joining–––––
Longitudinal seam welding (longitudinal seam systems/longitudinal seam clamping benches forJoiningHighest precision–––sheet metal
Pipe end machining (facing, chamfering)Machining––––pipes
Hydrostatic pressure testing (water pressure test equipment for welded pipes)Testing–24,000 mm × Ø 2,540 mm––pipes
X-ray inspection of large-diameter pipesTesting––––large-diameter pipes
Milling system engineering (milling systems, spiral pipe milling systems, bandage milling systems)Machining–––––
Flame cutting of pipe endsMachining–––––
Plasma weldingJoining–––––
Micro-flame brazingJoining–––––
Vessel/tank production lines (manufacture of can sections, assembly in assembly stations,Joining–––––
Storage tank manufacturing (complete production lines)Joining–––––
Bending (bending systems can be integrated into longitudinal seam systems)Forming––––sheet panels
Assembly of subassembliesAssembly–––––
Special machinery and plant engineering (automated welding and testing technology, design toEngineering–––––
Retrofit / modernisation of machines and systems (including third-party equipment)Engineering–––––
Maintenance contracts / serviceEngineering–––––
Positioning/manipulation of pipes and workpieces (handling, tilting of pipe can sections,Assembly–Ø 11 m100 t–pipes, pipe can sections

16 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Submerged arc welding systemsUNIWELD–––Burbach
Hydrostatic testersUNIWELD–Pipe diameter 114.3 mm to 2,540 mm / 4" to 100", pipe length 6,000 mm to 24,000 mm, test pressure–Burbach
X-ray systems (pipe carriage/roller conveyors, turning rolls, X-ray tube, image intensifier,UNIWELD–Large-diameter pipes–Burbach
Pipe end machining machinesUNIWELD–––Burbach
Circumferential seam welding systemsUNIWELD–––Burbach
Longitudinal seam welding systems / longitudinal seam clamping benchesUNIWELD–for cylindrical can sections or sheet panels–Burbach
Carriage columns and welding gantriesUNIWELD–––Burbach
Turning rollsUNIWELD–Load capacity up to 1,000 t, optional anti-drift system–Burbach
Turn-tilt tables, dual-column manipulators, facing turntables, horizontal turning devicesUNIWELD–Load capacity up to 250 t–Burbach
Tilting devices for pipe can sectionsUNIWELD–Ø up to 11,000 mm, load capacity up to 100 t–Burbach
FSW tank welding systems (Friction Stir Welding)UNIWELD–––Burbach
Milling systems (including spiral pipe milling systems, bandage milling systems)UNIWELD–––Burbach
Pipe end flame cutting systemsUNIWELD–––Burbach
Welding systems for lighting column manufacturing (SAW technology, round and polygonal lightingUNIWELD–tapered lighting columns–Burbach
Vessel/tank production linesUNIWELD–Assembly stations, testing equipment–Burbach
Valve test stand (3,000 t automatic hole punch as separate system)UNIWELD–––Burbach

Additional services

Design and development (special machinery)Manufacturing from design to commissioningRetrofit / modernisation of machines and systems (including third-party equipment)Maintenance contractsRepair serviceRemote maintenanceCE markingProcess data acquisition and documentationHandling equipment / automation

Reference customers

Ariane programme (European launch vehicle: Ariane 4 from 1985, Ariane 5, Ariane 5ME, Ariane 6) –European and non-European aerospace customers

Quality

UNIWELD's production systems enable testing systems such as hydrostatic testers for pipes up to Ø 2,540 mm and 1,000 bar as well as X-ray systems for large-diameter pipes. Processes can be carried out fully automatically with process data acquisition and documentation.

EvidenceBurbach
ISO 9001

History

  1. 1955

    Company founded in Kreuztal

  2. 1964

    Relocation to its own production facilities in Burbach

  3. 1978

    Affiliation with the IBG Group

  4. 1986

    Hall extension in Burbach

  5. 1987

    Construction of a new office building

  6. 1989

    Delivery of a first production line for the manufacture of tanks for Ariane 5

  7. 1990

    Expansion of the office building

  8. 1998

    Certification to DIN EN ISO 9001:2000

  9. 1999

    Merger of the companies Gustav Stähler, Kröger Schweißtechnik and Protarc Zaar to form Uniweld Maschinenbau GmbH & Co. KG

  10. 2001

    Acquisition of UNIWELD Maschinenbau and the Croatian Uniweld Strojevi by Thomas Jünger

  11. 2007

    Hall extension with pit for expanded production capacity

  12. 2008

    Acquisition of shares in MIG-O-MAT Mikrofügetechnik GmbH

  13. 2009

    Delivery of a second production line for the manufacture of tanks for aerospace

  14. 2010

    Delivery of several hydrostatic testers worldwide

  15. 2015

    Delivery of a third production line for the manufacture of tanks for Ariane 5ME

  16. 2018

    Delivery of a fourth production line for the manufacture of tanks for Ariane 6

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