Manufacture of rotary pipe joints, loading technology and contract machining in steel, stainless steel and aluminium.
KLAAS Maschinenbau GmbH & Co. KG
Wetter (Ruhr) · Wetter (Ruhr) (production/assembly loading technology)New on Amplifa
About the KLAAS Group
The KLAAS Group, headquartered in Wetter (Ruhr), was founded in 1970 by engineer Hans Klaas and comprises KLAAS Maschinenbau GmbH & Co. KG and, since 2001, KVT KLAAS Verladetechnik GmbH & Co. KG. The company manufactures rotary pipe joints in eight basic designs (DN20–DN700), rotary feed-throughs as well as loading arms and access solutions for the loading and unloading of tank trucks, rail wagons and containers. In addition, the contract manufacturing division offers CNC milling and turning, vertical turret lathe turning, boring machines, gear shaping (generative shaping of internal ring gears and hollow wheels for planetary gearboxes) as well as steel construction using all common welding processes (MIG, MAG, TIG, submerged arc, electrode). Materials are steel, stainless steel and aluminium; the range extends from series production of small parts to single-unit fabrications weighing several tonnes, complemented by cutting, grinding, rolling, bending, blasting, painting, assembly and preservation. Customers come primarily from the chemical industry, the oil and gas sector, the food and beverage industry, pharmaceuticals, water management and logistics. Around 30 employees manufacture exclusively at the company's headquarters in Wetter an der Ruhr.
- Site
- Wetter (Ruhr)
- Processes
- CNC milling and turning, finishing, Generative gear shaping / gear shaping (internal ring gears, hollow wheels, planetary gearboxes), Sheet metal working, all welding processes (MIG, MAG, TIG, submerged arc, electrode welding), Vertical turret lathe turning, Drilling (boring machines), Cutting, Grinding, Rolling
- Materials
- Steel, Aluminium, Stainless steel, 42CrMo4, Gear shaping / generative gear shaping, Welding processes
- Certificates
- DIN EN ISO 9001, DIN EN ISO 3834-3, TN/PED-3-1/15185/26, TN/AD2000-HP0, 0045-CPR, WHG in accordance with §62 AwSV, VDS rotary pipe joint / BA rotary joints, Directive 2014/68/EU (EN 13480), DGUV GS-VL-35:2018/07, DIN EN ISO 9001:2015, PED 2014/68/EU (EN 13480), AD 2000-HP0, VDS (rotary pipe joint/BA rotary joints), DGUV GS-VL-35
- Founded
- 1970
- Employees
- ca. 30
- Industries
- Chemical industry, Oil and gas industry, Food and beverage industry, Pharmaceutical industry, Water management, Transport and logistics
- 01
Design and project planning
- 02
CNC milling and turning
- 03
Drilling, grinding, rolling, bending
- 04
Welding (MIG, MAG, TIG, submerged arc, electrode)
- 05
Blasting and painting
- 06
Assembly of components and assemblies
- 07
Preservation and shipping
- 08
Installation, maintenance and service
Materials and Processes
42CrMo4
Material of the rotary pipe joints for highly stressed media transfer systems.
Stainless steel
For corrosive media and applications with high hygiene requirements; further materials on request.
Steel
Base material for steel construction, loading arms and contract manufacturing.
Aluminium
Machining in cutting operations, sheet metal working and welded constructions.
Gear shaping / generative gear shaping
Special process for internal ring gears and hollow wheels, especially for planetary gearboxes.
Welding processes
All common processes, manual or semi-mechanical, performed by certified welders (ISO 3834-3).
Locations
Wetter (Ruhr)
DECompany headquarters, production and administration
- Lot size
- Single-unit production to series
- Materials
- Steel, stainless steel, aluminium
- Vertical turret lathes
- CNC milling machines
- Lathes
- Boring machines
- Gear shaping machine
Wetter (Ruhr) — Loading Technology Site
DEProduction and assembly of loading technology (since 2010)
- Materials
- Steel, stainless steel
- Assembly crane
- Truck with loading crane
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC milling and turning, finishingCutting machining | – | – | – | – | Steel, Aluminium, Stainless steel |
| Generative gear shaping / gear shaping (internal ring gears, hollow wheels, planetary gearboxes)Cutting machining | – | – | – | – | Steel |
| Sheet metal working, all welding processes (MIG, MAG, TIG, submerged arc, electrode welding)Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Vertical turret lathe turningCutting machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Drilling (boring machines)Cutting machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| CuttingCutting machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| GrindingCutting machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| RollingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| BendingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| BlastingSurface | – | – | – | – | Steel, Stainless steel, Aluminium |
| PaintingSurface | – | – | – | – | Steel, Stainless steel, Aluminium |
| Assembly of components and assembliesAssembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Preservation and shippingSurface | – | – | – | – | Steel, Stainless steel, Aluminium |
| Planning and project planning (mechanical and plant engineering, design)Engineering | – | – | – | – | – |
| Installation, maintenance, modernisation, repair of loading systems (incl. third-party products)Assembly | – | – | – | – | – |
| Recurring inspections in accordance with BetrSichV, hydraulic hose, folding stair, leak andTesting | – | – | – | – | – |
| Manufacture of rotary pipe joints and loading arms (loading technology)Assembly | – | – | – | – | Steel, Stainless steel, Aluminium |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vertical turret lathe | – | – | – | – | Wetter (Ruhr) |
| CNC milling machine | – | – | – | – | Wetter (Ruhr) |
| Lathe | – | – | – | – | Wetter (Ruhr) |
| Boring machine | – | – | – | – | Wetter (Ruhr) |
| Gear shaping machine | – | – | – | – | Wetter (Ruhr) |
Additional services
Quality and Certificates
Quality is certified to DIN EN ISO 9001:2015 and DIN EN ISO 3834-3; loading joints are certified to TA Luft, the BA rotary joints are VDS-approved. Further proofs include PED (Directive 2014/68/EU, EN 13480), AD 2000-HP0, WHG in accordance with §62 AwSV, CPR 0045 and DGUV GS-VL-35.
| Evidence | Wetter (Ruhr) |
|---|---|
| DIN EN ISO 9001:2015 | |
| DIN EN ISO 3834-3 | |
| PED 2014/68/EU (EN 13480) | |
| AD 2000-HP0 | |
| WHG in accordance with §62 AwSV | |
| VDS (rotary pipe joint/BA rotary joints) | |
| DGUV GS-VL-35 |
Company History
- 1970
Founding of Klaas Maschinenbau by engineer Hans Klaas in Wetter (Ruhr).
- 1978
Move to a new company building in Wetter/Ruhr; tripling of production and office space.
- 1993
VDS approval of the BA rotary joints.
- 1998
Introduction of the quality standard DIN EN ISO 9001; loading joints certified to TA Luft.
- 2001
Founding of KVT Klaas Verladetechnik GmbH & Co. KG.
- 2010
Purchase of the neighbouring commercial property for production and assembly of loading technology; expansion of repair and service offerings.
- 2018
Introduction of DIN EN ISO 9001:2015.
- 2024
Thorsten and Liane Mohncke take over the family business as shareholders as of 01.07.2024; focus on digitalisation and new production standards.