Refrigeration technology and air conditioning in tunnelling and mining

With more than 40 years of experience, we gladly support you in air-cooling of tunnels as well as coal, ore and potash mines.

WAT - Your reliable partner in air conditioning

In several projects, air conditioning is elementary. For more than 40 years WAT has specialized in air conditioning for tunnels as well as coal, ore and potash mines.

Our product range reaches from single refrigeration machines with cooling capacities between 100 kW and 4 MW up to combined cooling systems with capacities of more than 30 MW. For your tasks from various fields of air conditioning, we deliver innovative products, that are precisely and flexibly fitted to your requirements.

We ensure worldwide distribution and service activities for tunnelling and mining by our shareholders Famous Industrial Group GmbH and CFH GmbH.

The comprehensive experience of our climate specialists is your benefit!

Our products for refrigeration technology

Cold-Water machine chiller KM1000 for cooling in mining and tunnelling

Cold-Water Machines

Types KM, KPM and IDV

Our products for air conditioning


Types RWK and SPK


Typ RK

Air-Cooling Machine

Type DV

Our ambition:

To ensure a comfortable and healthy working climate for all employees in mining and tunnelling.

Dirk Bütefür, CEO

International projects

WAT is working for you around the world. With international branches and represetations as well as a worldwide network of our shareholders – Famous Industrial Group and CFH Gruppe – we are available for our customers in numerous countries in the world. This includes not only the worldwide delivery of products and spare parts, but also the associated local service. Since 1990 more than 5,300 refrigeration systems have been projected, manufactured  and delivered.

Worldmap projects mining and tunneling
TÜV NORD certificate ISO 9001
TÜV NORD Certificate ISO 3824 welding
Made in Germany Logo

Certification according to DIN ISO 9001 and DIN ISO 3834

Since its foundation in 1977, WAT has been manufacturing at the workshop in Hamminkeln with quality “Made in Germany”.

We actively practice according to quality management standard DIN ISO 9001. As welding specialist we also comply with welding quality standard DIN ISO 3834.

Our partners and customers