Mainka at a glance
Total output 2025
> 330
€ million p.a.
Founded
1895/1949
Branches
- Lingen (head office)
- Brunsbüttel
- Gelsenkirchen
- Cologne
- Münster
- Osnabrück
- Papenburg
- Wuppertal
Mainka employees
> 750
Accident statistics
Construction projects for chemicals, energy and logistics
We plan, construct, renovate and maintain industrial buildings safely, reliably and with many years of experience. Our focus is on complex projects in sensitive industrial environments such as chemical parks, power stations, refineries, energy infrastructure and large logistics sites.
Turnkey Construction of a Production Plant for Industrial Gases
Turnkey Construction of a Production Plant for Industrial Gases
For our client Air Liquide, we delivered the turnkey construction of a state‑of‑the‑art production facility for industrial gases. The project comprised extensive earthworks, concrete and reinforced‑concrete works as well as the complete interior construction. Special requirements — such as precise formwork and reinforcement works, complex sewer and pipeline construction, and the creation of media‑tight surfaces — were successfully implemented.
Additionally, we took on the technical building services including planning, and all works were carried out during ongoing operations.
Figures and facts:
- Excavation work
- Canalization / pipeline construction
- Roads and Asphalt construction
- Concrete construction
- Reinforced concrete construction
- Interior fit-out
- Work during ongoing operation
- Creation of non-permeable surfaces
- Technical building installations incl. planning
Implementation planning
- 6,300 m³ excavation
- 5,700 m³ concrete
- 620 t reinforcement
- 9,250 m² formwork
- 1,050 m² facade
- 1,480 m pipeline construction
- 100 m cable trenches
- 2,800 m² asphalt
- 975 m² WHG storage areas
- 1,420 m² concrete walkways and roads
- 23 t built-in components
- 12,000 m cable
- 1,200 m² ventilation duct
| Customer | Air Liquide Global E&C Solutions Germany GmbH |
|---|---|
| Location | Dormagen, Germany |
| Contract value | approx. €9 million |
| Main construction period | 20 months |
Similar references
Of our more than 750 employees, around 60% are construction site personnel, whom we train regularly. On average, we devote 2% of annual working hours to training.
For whom and why?
We generate more than 90% of our turnover in the chemical, energy and specialised logistics sectors. Customers from these sectors trust in our experience because we construct complex industrial buildings reliably and safely.
