AKS Heat Transfer Ltd.


Charge Air Coolers

AKS can provide replacement charge air coolers as well as refurbished ones. In choosing a replacement unit manufactured by AKS, you have a charge air cooler of the highest quality, manufactured from drawings, pattern or survey onboard your vessel.

AKS Superfin Air Coolers and Budgetfin Air Coolers can be supplied for the brands as B&W, Bergan, Bolnes, Brown Boweri, Caterpillar, Cegelski, Daihatsu, Deutz, DMR, Dorman, Hanshin, Kawasaki, Lister Blackstone, MAK, MAN, Mitsubishi, Motsui, Nohab, Semt-Pielstick, Sulzer, Wärtsila, Yanmar and many more.

Units will be supplied with test certification in conjunction with Lloyds Register or other classification in addition to AKS own strict test procedures.


Refurbishment of your charge air cooler will save you a lot of money and adding numerous years on the lifetime on your unit.

AKS have developed a procedure to extend the working life of your leaking air coolers and maintain the efficiency of the orignial cooler. This service is only available from AKS Heat Transfer International Marine Division.

The process involves re-lining all the tubes with a new tube inserted inside the original tube, expanding down to the full length of the liner tube to make a full mechanical bonding with the original tube before adding wall thickness to the orignal tube and solving any leaks and removing any thinning of the original tube wall. All coolers are fully tested and come With Lloyds Register certification as a standard.

Shell & Tube Heat Exchangers

AKS have Direct replacement Shell & tube heat exchangers, condensers and tube nest from pattern, basis drawings or survey onboard your vessel. All replacement tube nests is manufactured using materials to specification and all fully pressure tested.

The International Marine Division introduce a new service to pre-condition new, repaired, refurbished and Shell & tube heat exchangers/coolers to produce a pre-installment film protection to guard against premature failure and extend the lifetime of your air coolers.

Servicing and Repair

Shell & tube heat exchangers and condensers undergo full servicing including deassembling, cleaning (ultrasonical, chemical or mechanical) inspection, reassemble with new gasket sets, worn parts and presussure test.


Units completely re-tubed to original specification or higher, tube plates baffles and shell also replaced when required. Work can be undertaken in our works, on-site or onboard vessel to meet your requirements.

Tube nests re-furbished in our works, all material to original specification with huge cost and time savings against new units.


Extended Surface Heat Exchangers

The latest range of AKS dry Air blast water coolers

Heavy Duty Anti Freezing air blast water cooler with fan motor can be manufactured from a mixture of tube materials like Carbon Steel, Stainless Steel, Titanium, Alu Brass, Copper and CuNi.

Extended Surface Heat Exchangers Coolers & Coils

H&V heating, cooling and refrigerant coils direct replacement from pattern, drawings or site survey.

AKS direct replacement radiators for stand by generators. mobile plant, offroad vehicles and process cooling to original specification or upgraded to meet increased duty requirements. New cores incorporating heavy duty dipped cores guaranteed to prolong working life.

Brands like: Caterpillar, Cummins Detroit Diesel, JCB, Lister Blackstone, MAN, Perkins, Rolls Royce, Ruston, Terex, Volvo, Yanmar and many more.

Standard cores:Both pack construction and in on tube, brass seamed tubes and copper fins, brass tube plates up to 2mm thick.

Heavy duty cores: Fin on tube, brass seamless tubes and copper tinned fins, double brass plates up to 10mm thick in total.

In additon AKS perform radiator cleaning, radiator testing, radiator repairs, radiator overalls and radiator re-coring.

AKS offer a full range of radiator spares for most types and makes from direct replacement complete units, radiator cores, gasket sets, header tanks, supports and pressure caps.

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