
Industrial service provider for electrical engineering, piping construction, steel and metal construction, sheet metal processing and industrial assembly from Westernohe

Zoth GmbH & Co. KG
Westernohe · Ingelheim am Rhein · Frankfurt am Main · Wiesbaden · Marburg · Oberursel · Flörsheim am Main · Ludwigshafen am Rhein · Raunheim · ErfurtNew on Amplifa
About Zoth
Zoth GmbH & Co. KG is a family-owned company founded in 1956, headquartered in Westernohe (Westerwald) with more than 500 employees. Having grown out of a small electrical business, the company today offers services in electrical engineering (electrical assembly, MSR, energy and automation technology, building technology), piping construction and HVAC/plumbing, steel and metal construction, vessel and apparatus construction, as well as sheet metal processing and industrial assembly. In sheet metal processing, simple blanks and complex assemblies are produced in single-unit and series production – using laser cutting up to 2,000 × 4,000 mm and 40 mm sheet thickness (TruLaser 5040 fiber, 10 kW), tube laser cutting up to 6,000 mm length, CNC bending up to 25 mm, as well as welding, soldering, screwing, riveting and surface finishing such as pickling, blasting, painting, powder coating and galvanizing. Materials processed include unalloyed steels, stainless steels, chrome-nickel steels, duplex steel, Hastelloy, aluminium, copper and plastics. Customers come from the pharmaceutical, chemical, petrochemical and metals industries as well as the public sector, including Bayer CropScience, CSL Behring, Ticona/Celanese, Rolls Royce, Boehringer Ingelheim and Deutsche Bahn. In addition to its headquarters, Zoth maintains locations in Ingelheim, Frankfurt Höchst, Wiesbaden, Marburg, Oberursel and Ludwigshafen, among others, as well as the subsidiary MAE in Erfurt.
- Site
- Westernohe
- Processes
- Laser cutting, Tube laser cutting, CNC bending/forming, Soldering, screwing, riveting, Pickling, Blasting, Painting, Powder coating
- Materials
- Unalloyed steels, Stainless steels, Chrome-nickel steels, Duplex steel, Hastelloy, Aluminium, Copper, Plastics
- Certificates
- ISO 9001:2015, SCC** 2021 (unrestricted), Certified company for fire alarm systems DIN 14675, Manufacturer and welding operation AD 2000 HP 0/HP 100R, Welding of steel load-bearing structures DIN EN 1090-2 EXC3, EN ISO 3834-2, System for transfer of material identification (DIN EN 10204), Module A2 Pressure Equipment Directive 2014/68/EU, Certified company under the Federal Water Act, DB prequalification electrical switch point heating systems medium and low, WKP conformity EN 1090-2, SCC** 2021, EN 1090-2 EXC3, AD 2000 HP 0/HP 100R, DIN 14675 (fire alarm systems), Material identification DIN EN 10204, DB prequalification for switch point heating systems
- Founded
- 1956
- Employees
- 500+
- Industries
- Pharmaceutical industry, Chemical industry, Petrochemicals, Consumer goods, Metals industry, Rail infrastructure (Deutsche Bahn)
- 01
3D-CAD planning (3D Pipe&Power)
- 02
Laser cutting (sheet and tube)
- 03
CNC bending/forming
- 04
Welding, soldering, screwing, riveting
- 05
- 06
Assembly and commissioning
Materials and Processes
Unalloyed steels
Used in steel construction for structures, pipe bridges, machine frames and vessel construction
Stainless steels
For piping, handrails and pharma-grade plant components
Chrome-nickel steels
For corrosion-exposed structures and piping construction
Duplex steel
High-strength and corrosion-resistant, e.g. in piping construction for the chemical industry
Hastelloy
Nickel alloy for aggressive media in chemical plant engineering
Aluminium
Lightweight components in sheet metal processing and piping construction
Copper
For piping and electrical installations
Plastics
For piping and sheet metal components depending on requirements
Locations

Westernohe
DEHeadquarters, sheet metal processing and steel construction
- Part weight / size
- Sheet thicknesses up to 40 mm
- Lot size
- Single-unit to series production
- Materials
- Steel, stainless steel, aluminium, plastics
- TruLaser 5040 fiber (Trumpf, 10 kW, 2,000 × 4,000 mm)
- CNC bending machine (up to 25 mm sheet thickness)
- Drilling-milling and sawing machine
Ingelheim am Rhein
DEService centre (since 2008)
Frankfurt am Main
DELocation Industriepark Höchst (Building C 446)
Wiesbaden
DELocation Industriepark Kalle-Albert
Marburg
DELocation Görzhäuser Weg (Behringwerke); Service centre Michelbach (since 2005)
Oberursel
DELocation (industrial assembly Rolls Royce since 1996)
Flörsheim am Main
DELocation Liebigstr. 93
Ludwigshafen am Rhein
DELocation Shellstr. 1
Raunheim
DEOffice building Mönchhof site (new building 2015)
Erfurt
DESubsidiary MAE (since 1991)
Components and Constructions




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser cuttingMachining | – | 4,000 mm × 2,000 mm | Sheet thickness up to 40 mm | Single-unit – series production | Steel, Stainless steel, Aluminium, Plastics, various materials |
| Tube laser cuttingMachining | – | 6,000 mm | Diameter 120 x 15 mm | – | Steel, Stainless steel, Aluminium, various materials |
| CNC bending/formingForming | – | – | max. 25 mm sheet thickness | – | Steel, Stainless steel, Aluminium, various materials |
| Joining | – | – | – | – | Steel, Stainless steel, Chrome-nickel steels, Aluminium, Copper, Duplex steel, Hastelloy |
| Soldering, screwing, rivetingJoining | – | – | – | – | – |
| PicklingSurface | – | – | – | – | – |
| BlastingSurface | – | – | – | – | – |
| PaintingSurface | – | – | – | – | – |
| Powder coatingSurface | – | – | – | – | – |
| GalvanizingSurface | – | – | – | – | – |
| Assembly | – | – | – | Single-unit | unalloyed steels, chrome-nickel steels |
| Piping construction (planning, installation, maintenance)Assembly | – | – | – | – | unalloyed steels, stainless steels, plastics, chrome-nickel steels, aluminium, copper, duplex steel, Hastelloy |
| HVAC/plumbing (heating, cooling, ventilation, sanitary) - planning, installation, maintenanceAssembly | – | – | – | – | – |
| Electrical engineering/electrical assemblyAssembly | – | – | – | – | – |
| Measurement, control and regulation technology (MSR)Assembly | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Vessel and apparatus constructionAssembly | – | – | – | – | Steel, Stainless steel |
| Equipment assembly (apparatus and vessels)Assembly | – | – | 2,000 tonnes of steel (project) | – | Steel |
| Industrial assembly/heavy assemblyAssembly | – | – | – | – | – |
| 3D-CAD planning and programming (3D Pipe&Power)Engineering | – | – | – | – | – |
| Material identification/re-identification according to DIN EN 10204Testing | – | – | – | – | metallic materials |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser cutting machine | Trumpf TruLaser 5040 fiber | 1 | 2,000 x 4,000 mm, 10 kW | – | Westernohe |
| Drilling-milling and sawing machine | – | 1 | – | – | Westernohe (steel construction) |
| CNC bending machine | – | – | up to max. 25 mm sheet thickness | – | Westernohe |
Additional services
Reference customers
Quality and Certifications
An integrated management system sets standards for occupational health, safety and environmental protection and is audited through TÜV-certified systems according to ISO 9001:2015 and SCC**. For welding fabrication, approvals exist in accordance with EN 1090-2 EXC3, AD 2000 HP 0/HP 100R, EN ISO 3834-2 as well as for material re-identification according to DIN EN 10204.
| Evidence | Westernohe |
|---|---|
| ISO 9001:2015 | |
| SCC** 2021 | |
| EN 1090-2 EXC3 | |
| AD 2000 HP 0/HP 100R | |
| EN ISO 3834-2 | |
| DIN 14675 (fire alarm systems) | |
| Module A2 Pressure Equipment Directive 2014/68/EU | |
| Material identification DIN EN 10204 | |
| DB prequalification for switch point heating systems |
History
- 1956
Founded by Dr. h.c. Walter Zoth as a small electrical business in Westernohe
- 1963
First industrial assembly at the Caltex refinery
- 1965
Start of industrial assembly at the Kalle-Albert plant, Wiesbaden; approx. 40 employees
- 1971
New building of today's headquarters on Dr.-Walter-Zoth-Allee; approx. 130 employees
- 1978
Start of industrial assembly at Hoechst AG, Frankfurt am Main
- 1984
Start of industrial assembly for the Behringwerke, Marburg; approx. 240 employees
- 1989
Founder Walter Zoth receives the Federal Cross of Merit
- 1991
Foundation of the subsidiary MAE in Erfurt; more than 300 employees
- 1995
Start of industrial assembly at Ticona, Kelsterbach
- 1996
Start of industrial assembly for Rolls Royce, Oberursel
- 2002
Start of industrial assembly for Boehringer Ingelheim
- 2005
New service centre in Marburg Michelbach
- 2008
New service centre in Ingelheim
- 2015
New office building on the Mönchhof site in Raunheim; more than 500 employees
- 2020
Investment in a TruLaser 5040 fiber laser machine (10 kW, Trumpf) for sheet metal processing