Weka Boxcoolers: Bundled to perfection

WEKA has been manufacturing marine products since 1957. The core business is boxcoolers which are used for inland waterways and sea-going vessels. Weka offers a range of materials for different applications. This is for economical as well as for environmental reasons.
Boxcoolers are used for cooling of diesel engines between 3 and 20,000 kW.

Boxcoolers have several advantages compared to conventional cooling methods: lower weight and price, easier maintenance, higher reliability.
WEKA has taken the boxcooler principle to new hights of performance. Recent application and technology development has resulted in a product which competes successfully with conventional cooling for diesel engines in almost any application.

The WEKA Boxcooler is a compact, closed circuit cooling system that is mounted in a sea chest within the confines of the vessel’s hull, offering excellent protection from submerged obstacles. The boxcooler also eliminates the need for raw water pumps, strainers, and filters. Each WEKA Boxcooler is custom engineered to meet the specific requirements of the engine, vessel, and operating conditions. With over 50 years of experience in marine cooling, our team can provide expert advice on cooler sizing, placement, installation, and service.

Request a quotation

Reliable services

WEKA visited operators, designers and shipbuilders of tugboats, offshore vessels, ferries, patrol boats and super yachts all over the world. By understanding your business, tasks, responsibilities and concerns, we are able to maintain a high level of service.

Natural Anti-fouling

WEKA Boxcoolers are constructed using uncoated 90/10 copper-nickel tubing. This alloy does not require a protective coating or ICAF (Impressed Current Anti-Fouling) system due to its inherent corrosion resistance to seawater and natural anti-fouling capabilities.  


The Weka boxcooler is virtually maintenance free. Compared to other systems, the operational costs are reduced. The boxcooler does not require a secondary raw water cooling circuit on board, which eliminates the need to bring raw water into the vessel.