
Planning, construction and commissioning of process plants as well as piping and vessel construction for the process industry

Kramer & Best Anlagenbau GmbH
Dörth · Mittelbiberach · Mainz · Bitterfeld-WolfenNew on Amplifa
Company
Kramer & Best Anlagenbau GmbH is a plant construction and engineering company for the process industry based in Dörth (Hunsrück). Its service portfolio includes the planning and construction of process plants, piping construction, pressure vessel and structural steelwork construction as well as commissioning, maintenance, optimization and training – also as turnkey EPC solutions. Fabrication and processing is carried out in steel and stainless steel as well as in thermoplastics such as PP-H, PE-HD and PVDF, among others using TIG, orbital TIG, MIG and MAG welding processes and plastic welding according to DVS 2212. Customers include companies from the chemical, pharmaceutical and biopharmaceutical, energy, food & beverage and glass industries. In addition to its headquarters in Dörth, the company operates branches in Mittelbiberach (own production for the pharmaceutical industry), Mainz (plant engineering) and Bitterfeld-Wolfen (Chemical Construction and Fibertube). Since 2024 the company has belonged to VINCI Energies and is active in 17 countries with around 200 employees.
- Site
- Dörth
- Processes
- Plant construction (process plant construction, construction of machines and plants), Piping construction (installation of pipework), TIG welding (tungsten inert gas welding, 141), Orbital TIG welding (142), MIG welding (metal inert gas welding, 131), MAG welding (metal active gas welding, 135), Manual arc welding (E, 111), Gas welding with oxy-acetylene flame (G, 311)
- Materials
- PP-H (polypropylene), PE-HD (high-density polyethylene), PVDF (polyvinylidene fluoride), Steel (steel structures, pressure vessels), Steel, Stainless steel, TIG welding, Orbital TIG welding
- Certificates
- DIN EN ISO 9001, ISO 3834-2 (welding quality requirements), AD 2000 HP 0 / HP 100R (manufacturer and welding operation), Certified specialist company according to § 19 WHG, DIN EN 1090-2 (structural steelwork), ISO 9001, ISO 3834-2, AD 2000 HP 0 / HP 100R, DIN EN 1090-2, Pressure equipment Module A2 (internal production control)
- Founded
- 1980
- Employees
- 200
- Industries
- Chemicals, Energy, Pharma & Biopharma, Food & Beverage, Glass, Process industry
- 01
Engineering and planning
- 02
Material procurement
- 03
Manufacturing (vessels, piping, structures)
- 04
Installation and assembly
- 05
Commissioning
- 06
Maintenance, service and training
Materials and Processes
Steel
Used in vessel and pressure vessel construction, piping construction and structural steelwork construction according to DIN EN 1090-2
Stainless steel
Processing with TIG and orbital welding processes, among others for pharmaceutical and process plants
PP-H (polypropylene)
Thermoplastic for plastic welding according to DVS 2212 in chemical plants
PE-HD (high-density polyethylene)
Thermoplastic for plastic welding according to DVS 2212 in piping and plant construction
PVDF (polyvinylidene fluoride)
Thermoplastic with high chemical resistance for welding applications according to DVS 2212
TIG welding
Inert gas welding process for steel and stainless steel with high weld seam quality
Orbital TIG welding
Mechanized orbital welds according to ISO 14732, among others for pharmaceutical piping
MIG and MAG welding
Inert gas and active gas welding processes for steel and aluminium
Manual arc welding and gas welding
Approval for manual arc welding as well as gas welding with oxy-acetylene flame
Brazing
Brazing according to DIN 65228 / VdTÜV data sheet 1160
Plastic welding
Welding of thermoplastics according to DVS 2212 and DIN 1910 part 3
Locations

Dörth
DEHeadquarters
- Materials
- Steel, stainless steel, PP-H, PE-HD, PVDF

Mittelbiberach
DESouthern branch, own production for the pharmaceutical industry

Mainz
DEPlant engineering branch

Bitterfeld-Wolfen
DEChemical Construction and Fibertube branch
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plant construction (process plant construction, construction of machines and plants)Engineering | – | – | – | – | Steel |
| Piping construction (installation of pipework)Joining | – | – | – | – | Steel, PP-H, PE-HD, PVDF |
| TIG welding (tungsten inert gas welding, 141)Joining | – | – | – | – | Steel, Stainless steel |
| Orbital TIG welding (142)Joining | – | – | – | – | Steel, Stainless steel |
| MIG welding (metal inert gas welding, 131)Joining | – | – | – | – | Steel, Aluminium |
| MAG welding (metal active gas welding, 135)Joining | – | – | – | – | Steel |
| Manual arc welding (E, 111)Joining | – | – | – | – | Steel |
| Gas welding with oxy-acetylene flame (G, 311)Joining | – | – | – | – | Steel |
| Brazing according to DIN 65228 / VdTÜV data sheet 1160Joining | – | – | – | – | – |
| Plastic welding (thermoplastics) according to DVS 2212, DIN 1910 part 3Joining | – | – | – | – | PP-H, PE-HD, PVDF |
| Manufacture of pressure vesselsForming | – | – | – | – | Steel |
| Structural steelwork construction according to DIN EN 1090-2Assembly | – | – | – | – | Steel |
| Gas and water installation (construction, modification, repair, maintenance)Assembly | – | – | – | – | – |
| Engineering / planning of process plantsEngineering | – | – | – | – | – |
| Commissioning and optimization of plantsAssembly | – | – | – | – | – |
| Maintenance, service and repair of plantsAssembly | – | – | – | – | – |
| EPC (Engineering, Procurement, Construction) for process plantsEngineering | – | – | – | – | – |
| Installation of electrical systemsAssembly | – | – | – | – | – |
| Central heating and ventilation constructionAssembly | – | – | – | – | – |
Additional services
Quality and Approvals
Work is performed according to a quality management system in accordance with DIN EN ISO 9001. Welding work is qualified according to ISO 3834-2; welder qualification tests are carried out according to DIN EN ISO 9606-1 and AD-HP 5/1, and qualified NDT personnel and welding engineers are also available.
| Evidence | Dörth |
|---|---|
| ISO 9001 | |
| ISO 3834-2 | |
| AD 2000 HP 0 / HP 100R | |
| DIN EN 1090-2 | |
| Certified specialist company according to § 19 WHG | |
| Pressure equipment Module A2 (internal production control) |
Chronicle
- 1980
Founding of Kramer & Best Anlagenbau GmbH by Paul Kramer and Karl Best in Winningen/Mosel
- 1987
Relocation of the company headquarters from Winningen to Dörth/Hunsrück
- 1989
Dipl.-Ing. Herbert Esper joins the company management
- 1999
Founding of the subsidiary Kramer & Best d.o.o. in Tuzla/Bosnia
- 2000
Expansion of business activities through turnkey industry solutions
- 2001
Certification according to DIN EN ISO 9002
- 2003
Markus Kramer joins the company as authorized officer (Prokurist)
- 2004
Founding of Kramer & Best WISERV GmbH in Mainz
- 2005
Dr. Markus Kramer takes over commercial management
- 2006
Expansion of network partnerships in Eastern Europe
- 2007
Founding of a branch in Landsberg (sales and R&D)
- 2008
Founding of Kramer & Esper Holding as well as Kramer & Best Process Engineering GmbH; Dr. Markus Kramer becomes commercial managing director of the group
- 2009
Certification according to DIN EN ISO 9001:2008
- 2009/2010
Expansion of international activities, cooperation with Russia
- 2011
Introduction of the national occupational safety management system
- 2012
Expansion of the Life-Science / Pharma process technology business unit
- 2014
Introduction of the international occupational safety management system; founding of the Southern branch in Mittelbiberach with own production for the pharmaceutical industry
- 2015
Merger of Kramer & Best W.I.Serv GmbH with Kramer & Best Process Engineering GmbH
- 2021
Establishment of the Bitterfeld-Wolfen location / Kramer & Best Chemical Construction and Fibertube
- 2024
Acquisition by VINCI Energies