Special welded constructions up to 30 t as well as plant, foundry, formwork and elevator construction in steel
Sonnentag Schweißkonstruktionen GmbH
Schwäbisch Gmünd-Straßdorf (Forststraße 35) · Baden-Württemberg, GermanyNew on Amplifa
About us
Sonnentag Schweißkonstruktionen GmbH is a traditional company founded in 1842 in Schwäbisch Gmünd-Straßdorf, today managed by Hans-Peter Sonnentag in the fifth generation. On around 2,000 m² of production space in four production halls, 25 employees work on special welded constructions with individual weights of up to 30 tonnes. The production range covers plant and mechanical engineering (steel containers, machine base frames, conveyor system technology, plant enclosures, silo steel construction, scaffolding structures), foundry technology such as mould boxes and melting cylinders, formwork construction, elevator construction and custom-made products. Process chain: plasma cutting (sheet format 1.5 × 3 m), bending up to 3 m, rolling up to Ø 4000 mm, drilling, sawing, welding as well as priming and painting work. Materials are structural steel S235 and S355 as well as stainless steel. Customers come from plant engineering, mechanical engineering, foundry technology, formwork construction, elevator construction and timber construction, including NOE-Schaltechnik, Linde Material Handling, Allgaier and Maschinenfabrik Alfing Kessler. The company is certified according to DIN EN 1090 EXC2 and DIN EN ISO 3834-3.
- Site
- Schwäbisch Gmünd
- Processes
- Special welded constructions, Plant engineering / Mechanical engineering (steel containers, machine base frames, conveyor system, Foundry technology (mould boxes round/square/custom shape, melting cylinders), Formwork construction (series production of formwork panel frames, special formwork, transport, Elevator construction (elevator cars, counterweight frames, shaft equipment), Plasma cutting, Bending, Rolling (four-roll bending machine)
- Materials
- S235, S355, Stainless steel, Structural steel, S235 (structural steel)
- Certificates
- DIN EN 1090 EXC2, DIN EN ISO 3834-3, EN 1090 (EXC2), ISO 3834-3, ISO 9001
- Founded
- 1842
- Employees
- 25
- Industries
- Plant engineering, Mechanical engineering, Foundry technology, Formwork construction / construction industry, Elevator construction, Timber construction
- 01
Plasma cutting
- 02
Bending
- 03
Rolling
- 04
Drilling & Sawing
- 05
Welding/Final assembly
- 06
Priming & Painting
Materials & Processes
S235 (structural steel)
Unalloyed structural steel, among other things for bending work up to 3 m length and 12 mm sheet thickness.
S355
High-strength structural steel for load-bearing welded constructions in steel and scaffolding construction.
Stainless steel
Plasma cutting up to 25 mm and bending of stainless steel components with corrosion protection requirements.
Structural steel
Plasma cutting of structural steel sheets 1–30 mm in format 1.5 × 3 m.
Locations
Schwäbisch Gmünd-Straßdorf
DEHeadquarters and production with four production halls, 2,000 m²
- Part weight / size
- Welded constructions up to 30 t individual weight
- Lot size
- Single-part and series production
- Materials
- Structural steel S235/S355, stainless steel
- Plasma cutting system Plasma Cut (1.5 × 3 m, structural steel 1–30 mm, stainless steel 1–25 mm)
- Press brake GUIFIL (up to 3 m, 1–12 mm)
- Four-roll bending machine (up to 3 m, Ø 300–4000 mm, 3–20 mm)
- Radial drilling machine
- Meba band saw / sawing automat
- Kaltenbach cold circular saw automat
- Painting hall
Components & Services
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Special welded constructionsJoining | – | – | 30 t | – | – |
| Plant engineering / Mechanical engineering (steel containers, machine base frames, conveyor systemJoining | – | – | – | – | Steel |
| Foundry technology (mould boxes round/square/custom shape, melting cylinders)Engineering | – | – | – | – | – |
| Formwork construction (series production of formwork panel frames, special formwork, transportJoining | – | – | – | – | Steel |
| Elevator construction (elevator cars, counterweight frames, shaft equipment)Assembly | – | – | – | – | Steel |
| Plasma cuttingMachining | – | 3 m × 1.5 m | – | – | Structural steel (1–30 mm), Stainless steel (1–25 mm) |
| BendingForming | – | 3 m | – | – | S235, S355, Stainless steel |
| Rolling (four-roll bending machine)Forming | – | 3 m | – | – | – |
| Drilling (radial drilling machine)Machining | – | – | – | – | – |
| Sawing (band saw, cold circular saw)Machining | – | – | – | – | – |
| Priming and painting workSurface | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Plasma cutting system | Plasma Cut | – | Sheet format 1.5 x 3 m; structural steel 1–30 mm, stainless steel 1–25 mm | – | Schwäbisch Gmünd |
| Press brake | GUIFIL | – | Bending up to 3 m length, sheet thickness 1–12 mm | – | Schwäbisch Gmünd |
| Four-roll bending machine | – | – | Rolling up to 3 m length, Ø 300–4000 mm, sheet thickness 3–20 mm | – | Schwäbisch Gmünd |
| Radial drilling machine | – | – | – | – | Schwäbisch Gmünd |
| Band saw (sawing automat) | Meba | – | – | – | Schwäbisch Gmünd |
| Cold circular saw automat | Kaltenbach | – | – | – | Schwäbisch Gmünd |
| Painting hall | – | – | – | – | Schwäbisch Gmünd |
Additional services
Reference customers
Quality & Certification
Production is carried out according to DIN EN 1090 EXC2 for load-bearing steel components and according to DIN EN ISO 3834-3 for quality-assured welding. Priming and painting work is carried out in an in-house painting hall.
| Evidence | Schwäbisch Gmünd-Straßdorf |
|---|---|
| EN 1090 (EXC2) | |
| ISO 3834-3 | |
| ISO 9001 |
History
- 1842
Company founded as a traditional business in Schwäbisch Gmünd/Straßdorf
- 2001
Hans-Peter Sonnentag takes over management in the fifth generation; registration of the GmbH