

Overview
About A.D.WELDER Sp. z o.o.
Who we are
A.D Welder is a certified welding and steel construction company based in Zgorzelec, Poland – directly on the border with Görlitz (Germany). Thanks to our location on the German-Polish border, we offer customers in Germany and across the EU short lead times, fast communication and very competitive prices. We manufacture welded steel structures and assemblies for general mechanical engineering, special-purpose machinery, plant engineering, as well as construction and agricultural machinery. Typical products include frames, bases, brackets, beams, platforms, supports, railings and other structural components manufactured according to customer drawings. Our operations follow high quality standards and we hold the following certifications: EN 1090 EXC2 and ISO 3834-2 for the welding of steel structures. We mainly process structural steel and stainless steel in small, medium and also large series, as well as single-piece production. Our strengths are short decision-making paths, direct contact with the owner and high flexibility in terms of delivery times and batch sizes. We are ready to support you as a reliable manufacturing partner – from prototypes through to full series production.
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Zgorzelec, Poland
Member since 2025
Employees5 - 10
Certificates2
Turnover< 1 Mil.
Marketing documents
Competencies
Technologies
Welding
| Technologies | Lotsize | Length | Width | Height | Weight |
|---|---|---|---|---|---|
Inert gas shielded arc welding (MIG/MAG) | from 1 | from 0 mm | from 0 mm | from 0 mm | from 0 kg |
Inert gas shielded arc welding (TIG) | from 1 | from 0 mm | from 0 mm | from 0 mm | from 0 kg |
Welded constructions / Structural Steelwork
| Technologies | Length | Width | Height | Weight |
|---|---|---|---|---|
Welded constructions (weldments) | from 0 mm | from 0 mm | from 0 mm | from 0 kg |
Machine frames / bases / racks | 100–3,500 mm | 50–3,500 mm | 100–3,000 mm | 0–2,000 kg |
Beam prefabrication | 100–3,500 mm | 50–3,500 mm | 100–3,000 mm | 0–2,000 kg |
Drilling / Sawing
| Technologies | Lotsize | Length | Width | Height | Weight |
|---|---|---|---|---|---|
Drilling / threading / tapping | 5–999 | 50–3,000 mm | 50–3,000 mm | 100–3,000 mm | 0–2,000 kg |
Materials
Steel
Structural steelCase hardening/tempering steelStainless steel (rust-proof V2A)Stainless steel (rust-proof V4A)Free-cutting/mild steelTool steelSpring steelCold extruding steel
Light metals
Aluminium and aluminium alloysMagnesium and magnesium alloysTitanium and titanium alloys
Heavy metals
Copper-zinc alloys (brass)Copper and copper alloysZinc and zinc alloysSolder
Cast metals
Cast steelCast iron
Industries
Power generation and transmission industryMachine tool manufacturingSpecial purpose machinery manufacturingMechanical engineeringBuilding, agricultural and forestry machinery manufacturingAutomotive and vehicle constructionApparatus engineeringPlant engineering and constructionMilitary engineeringHydraulic and pneumatic industryBoiler, container and tank construction Packaging industryShipbuilding industryFittings engineeringConstruction and architectural suppliesRailway and rail vehicles industryFurniture industry
Certificates
DIN EN 1090
DIN EN ISO 3834
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