
Metal processing for sheet-metal pipes, pipework, furnaces, filters, chimneys, silos and welded assemblies from Waldershof.

Ambros Schmelzer & Sohn GmbH & Co. KG
WaldershofNew on Amplifa
About Schmelzer
Ambros Schmelzer & Sohn GmbH & Co. KG is an owner-managed metal processing company headquartered in Waldershof (northern Bavaria). From a craft business founded in 1913, the Schmelzer Group has developed into a company with two main locations in Germany and the Czech Republic plus seven further sites worldwide. The company manufactures sheet-metal pipes and pipework with diameters of 100 to 4,000 mm at sheet thicknesses of 1 to 12 mm, as well as spiral-welded pipes, a modular running-pipe modular system NW 100–400 mm with precise beaded edge, cyclones, electrostatic filters, furnaces, smooth-wall silos, chimneys to DIN EN 13084-7 and large dynamically balanced welded assemblies for the automotive industry. Production includes beading, welding, dynamic balancing, surface grinding, in-house toolmaking as well as in-house design, structural engineering and dimensioning. New installations, conversions and modernizations are installed by the company's own assembly firm Schmelzer & Pisek. The divisions Agricultural Technology, Modular Piping Systems, Plant Engineering, Assembly Manufacturing and Sheet-Metal Work supply customers in the agricultural and automotive industries as well as in plant, furnace, filter and power plant engineering.
- Site
- Waldershof
- Processes
- Industrial pipework, Pipe manufacturing with diameter 100–4000 mm, sheet thickness 1–12 mm, Modular piping system with precise beaded edge (running-pipe system NW 100–400 mm), Spiral-welded pipes (helix pipes), Beading (beaded edge on pipes), Welded assembly manufacturing (large dynamically balanced welded assemblies for the automotive, Balancing (dynamic balancing of welded assemblies), Furnace construction (hearth cars, hearth-car forge, pusher and chamber furnace construction)
- Materials
- Steel (sheet, pipes), Plastic (housing of AW-Control power part), Film (film roof surface, sheet-metal work), Plastic/film
- Certificates
- DLG testing/certification, DIN EN 13084-7 (chimneys)
- Founded
- 1913
- Industries
- Agricultural technology/grain technology, Plant engineering, Automotive industry, Pipework/Furnace construction/Filters/Cyclones/Chimneys/Silos, Dust extraction/Filter construction/Steel works/Conveying systems (assembly), Industry (pipework, furnace construction, filters, cyclones, chimneys, silos)
- 01
Engineering: design, structural analysis, dimensioning
- 02
Toolmaking
- 03
Sheet-metal/pipe manufacturing (forming, beading)
- 04
Welding (spiral pipes, welded assemblies)
- 05
Balancing / testing technology
- 06
Final assembly / industrial installation (Schmelzer & Pisek)
Materials and Processes
Steel (sheet, pipes)
Main material for pipes, pipework, furnaces, filters, cyclones, silos and welded assemblies.
Plastic/film
Housing components of the AW-Control power parts as well as insulated film roof surfaces in sheet-metal work.
Locations

Waldershof
DEHeadquarters with production for plant engineering, modular piping systems, agricultural technology, assembly
- Part weight / size
- Pipes NW 100–4000 mm, sheet thickness 1–12 mm
- Lot size
- Single-unit/series production (sheet-pipe series since the 1950s)
- Materials
- Steel, sheet, plastic/film
- Pipe manufacturing with beaded edge (NW 100–400 mm)
- Spiral welding systems
- Balancing machine for dynamic balancing
- in-house toolmaking
- Surface grinding for smooth-wall silos
Components



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Industrial pipeworkJoining | – | – | – | – | Steel, various materials |
| Pipe manufacturing with diameter 100–4000 mm, sheet thickness 1–12 mmForming | – | – | – | – | various materials |
| Modular piping system with precise beaded edge (running-pipe system NW 100–400 mm)Forming | – | – | – | NW 100 mm – NW 400 mm | Steel |
| Spiral-welded pipes (helix pipes)Joining | – | – | – | – | Steel |
| Beading (beaded edge on pipes)Forming | – | – | – | – | Steel |
| Welded assembly manufacturing (large dynamically balanced welded assemblies for the automotiveJoining | – | – | – | – | Steel |
| Balancing (dynamic balancing of welded assemblies)Testing | – | – | – | – | – |
| Furnace construction (hearth cars, hearth-car forge, pusher and chamber furnace construction)Assembly | – | – | – | – | Steel |
| Gas and water pipingAssembly | – | – | – | – | – |
| Manufacture of electrostatic filters (wet/dry, horizontal/vertical designs)Assembly | – | – | – | – | Steel |
| Cyclone manufacturing (SZ, SZ-LB series)Assembly | – | – | – | – | Steel |
| Smooth-wall silo manufacturing (welded silo system, surface-ground)Joining | – | – | – | – | Steel |
| Chimney construction (single-/double-wall steel chimneys, ventilation towers to DIN EN 13084-7)Assembly | – | – | – | – | Steel |
| Pipe and industrial installations (new plants, conversions, extensions, modernizations)Assembly | – | – | – | – | – |
| Engineering (dimensioning, design, structural analysis)Engineering | – | – | – | – | – |
| Toolmaking (in-house toolmaking)Engineering | – | – | – | – | – |
| Sheet-metal work (flat roofs, demolition through to fully insulated film roof surface)Assembly | – | – | – | – | Metal, Film |
| Series production of sheet-metal pipesForming | – | – | – | – | Steel, Sheet |
| Manufacture of bulk-material retaining walls/silos (trapezoid outer wall, modular wall, mobileAssembly | – | – | – | – | Steel, Sheet |
| Testing technology (AW Control)Testing | – | – | – | – | – |
| Grain cleaning (ZZeparator grain cleaner)Assembly | – | – | – | – | Steel |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Machinery fleet plant engineering/production | – | 9 (Standor | – | – | Waldershof |
Additional services
Quality
According to its own statements, products are tested and certified by DLG; the company holds numerous patents. Dynamic balancing is performed for welded assemblies; chimneys are designed to DIN EN 13084-7.
| Evidence | Waldershof |
|---|---|
| DLG testing/certification | |
| DIN EN 13084-7 (chimneys) |
History
- 1913
Founding of a craft business by Ambros Schmelzer in Waldershof.
- 1927
Resumption of business development after the First World War.
- Anfang der
Start of series production of sheet-metal pipes – still the core business today.