Development, manufacturing and service of handheld welding guns, robot welding guns and special welding systems for resistance spot welding.
Düring Schweißtechnik GmbH
Königsbrunn (Plant 1, Guldenstraße 11) · Königsbrunn (Plant 2, Hunnenstraße 9a) · Itatiba (São Paulo), Brazil · Shanghai (Jiading), China · Poznań, PolandNew on Amplifa
Company
Since 1980, Düring Schweißtechnik GmbH has been developing, manufacturing and assembling handheld welding guns, robot welding guns and special welding systems for resistance spot welding at its headquarters in Königsbrunn near Augsburg. The product portfolio comprises, in addition to the standard range of handheld welding guns, customer-specific robot welding guns such as the DWR 4.5, the ready-to-use robot welding cell, the laser welding gun Rayflex Alpha developed jointly with Trumpf, micro welding systems, projection welding machines, roller seam welding guns and test stands for welding technology. With a high level of vertical integration, gun components are manufactured in-house on the company's own CNC machines; only certified high-strength materials from regional long-term suppliers are used. The customer base consists largely of leading OEM manufacturers in the automotive industry and Tier-1 system suppliers. The company employs around 160 staff, generates revenue of €36 million and produces approximately 4,000 welding guns per year. As of 17.08.2026, Düring will become part of CenterLine Germany GmbH.
- Site
- Königsbrunn
- Processes
- Resistance spot welding (welding guns), Handheld welding guns (Easy Basic Edition, Power Edition, cable welding guns), Robot welding guns (pneumatic and motor-driven, customer-specific), Robot welding gun DWR 4.5 (4500 N electrode force, MF transformer 100 kVA, C-gun from 110 mm, X-gun, Robot welding cells (ready-to-use, with CE certification), Laser welding gun Rayflex Alpha (in cooperation with Trumpf), Micro welding systems (modular, manual work station to fully automatic), Projection welding (individually developed projection welding machines, automatable)
- Materials
- Certified high-strength materials (from regional long-term suppliers), Certified high-strength materials, Medium-frequency transformer 100 kVA
- Certificates
- QM system (audited by TÜV Süd)
- Founded
- 1980
- Employees
- 160
- Industries
- Automotive industry (OEM and Tier-1), Body-in-white/car body construction, Toolmaking, Steel mats, Radiator manufacturing, Sheet metal working
- 01
Design/Engineering
- 02
Prototype construction
- 03
CNC manufacturing of gun components
- 04
Assembly of welding guns and systems
- 05
Test stand development and testing of all process variables
- 06
Commissioning at the customer
- 07
Maintenance, servicing and spare parts supply
Materials and Processes
Certified high-strength materials
Only certified high-strength materials from regional long-term suppliers are used for gun components.
Medium-frequency transformer 100 kVA
The DWR 4.5 uses a 100 kVA medium-frequency transformer for energy-efficient resistance spot welding.
Locations
Königsbrunn – Plant 1 (Guldenstraße 11)
DEHeadquarters, design and manufacturing
- Lot size
- Prototype to high-volume series
- Materials
- Steel (certified, high-strength materials)
- CNC machines (in-house production)
- Robot welding cell manufacturing
- Test stands
Königsbrunn – Plant 2 (Hunnenstraße 9a)
DEAssembly
- Assembly and commissioning
Itatiba (São Paulo)
BRSubsidiary Düring do Brasil Ltda. – manufacturing with own mechanical production
- Own mechanical production
Shanghai (Jiading)
CNSubsidiary Düring Schweißtechnik (China) – sales and service
Poznań
PLSales representative office (Rob-Tech Sp. z o.o.)
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Resistance spot welding (welding guns)Joining | – | – | – | Prototype construction/pre-series – High-volume series | Steel (components, e.g. sheet metal working, car body |
| Handheld welding guns (Easy Basic Edition, Power Edition, cable welding guns)Joining | – | – | – | Prototypes/pre-series | – |
| Robot welding guns (pneumatic and motor-driven, customer-specific)Joining | – | – | – | Series production | – |
| Robot welding gun DWR 4.5 (4500 N electrode force, MF transformer 100 kVA, C-gun from 110 mm, X-gunJoining | – | – | 98 kg (gun weight) | Series production | Steel |
| Robot welding cells (ready-to-use, with CE certification)Joining | – | – | – | – | – |
| Laser welding gun Rayflex Alpha (in cooperation with Trumpf)Joining | – | – | – | – | – |
| Micro welding systems (modular, manual work station to fully automatic)Joining | – | – | – | – | – |
| Projection welding (individually developed projection welding machines, automatable)Joining | – | – | – | – | – |
| Roller seam welding (roller seam welding gun, gas-tight weld seams/roller spot seams onJoining | – | – | – | – | Steel (tanks, dishwashers) |
| Mobile resistance welding (gun trolley MSW 1000 with control module, compressed air, cooling)Joining | – | – | – | – | – |
| Test stands for welding technology (testing of all process variables of the gun)Testing | – | – | – | – | – |
| Design/engineering for welding systems and special solutionsEngineering | – | – | – | – | – |
| CNC manufacturing (gun components on state-of-the-art CNC machines in-house)Machining | – | – | – | – | – |
| Assembly/commissioning/maintenance/service incl. spare partsAssembly | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Robot welding gun DWR 4.5 (servo-motor-driven, MF transformer 100 kVA, max. 4500 N electrode force, | Düring DWR 4.5 | – | C-gun from 110 mm; X-gun 150–300 mm | – | – |
| CNC machines (own production) | – | – | – | – | Königsbrunn |
| Gun trolley MSW 1000 | Düring MSW 1000 | – | – | – | – |
| Roller seam welding gun | Düring | – | – | – | – |
| Laser welding gun Rayflex Alpha | Düring / Trumpf Rayflex Alpha | – | – | – | – |
| Projection welding machine | Düring | – | – | – | – |
| Micro welding system (modular) | Düring | – | – | – | – |
| Test stand for welding guns | Düring | – | – | – | – |
| Robot welding cell (ready-to-use) | Düring | – | – | – | – |
Additional services
Reference customers
Quality
Düring operates according to a quality management system that is continuously audited by the certification body TÜV Süd. All products are inspected in the company's own quality department before delivery to the customer.
| Evidence | Königsbrunn |
|---|---|
| QM system (audited by TÜV Süd) |
History
- 1980
Foundation of Düring Schweißtechnik GmbH in Königsbrunn by Karl A. Düring and Ursula Düring; initially trading and production of welding technology and accessories.
- 1980er/90er
Expansion through own mechanical manufacturing; production of resistance welding systems in Königsbrunn and first mobile welding systems of own production.
- 1998
International expansion with the founding of the subsidiary in São Paulo, Brazil.
- 2005
Expansion into Mexico with the founding of a subsidiary/office.
- 2012
Foundation of a subsidiary in Shanghai, China.
- 2013
Acquisition by POSSEHL Mittelstandsbeteiligungen GmbH (PMB) due to the lack of a succession plan by Karl A. Düring.
- 2026
As of 17.08.2026, Düring Schweißtechnik will become part of CenterLine Germany GmbH (part of CenterLine (Windsor) Ltd., Canada).