Charge Air Cooler For Fishing‑Vessel Main Engine Yanmar 6EY22W, Japan Market
Yanmar 6EY22W medium‑speed marine diesel engines are widely selected as main propulsion units for large‑size Japanese fishing vessels, including tuna long‑liners, squid jiggers and offshore fishing boats operating across the North‑West Pacific and coastal fishing grounds. Fishing vessels with 6EY22W operate under harsh real‑world conditions: long‑duration continuous full‑load cruising, frequent load swings during trawling / fishing‑net hauling, heavy‑vibration working environment, and direct‑seawater cooling circuits exposed to coastal bio‑fouling and salt‑water erosion. Reliable charge‑air cooler (intercooler) performance directly determines vessel uptime, fuel consumption and offshore‑fishing operational safety.
VRCOOLER supplies complete shell‑and‑tube charge‑air coolers and standalone tube‑bundle spares for Yanmar 6EY22W main engines, serving Japanese domestic fishing‑boat fleets, shipyards and marine spare‑part dealers. Products match original seawater‑cooled CAC configuration for direct retrofit without piping modification.
Marine‑grade material option for Japanese fishery service: Cu‑Ni 90/10 (C70600) tubes as standard for general offshore fishing grounds; titanium tube bundles available for extra‑corrosive near‑shore fishing zones.
Vibration‑resistant construction: Reinforced tube‑sheet welding structure, heavy‑duty casing and mounting lugs, engineered to counter fishing‑vessel cyclic vibration and thermal fatigue.
Strict 1:1 dimensional replication: Built according to OEM drawings, field‑measured dimensions or old‑unit photos. Flange positions, nozzle orientation, design pressure and thermal performance keep fully consistent with original equipment. No hull‑pipe rework required during onboard replacement.
Full test & documentation support: Hydrostatic pressure test, full material traceability provided, ready for Japanese‑flag vessel class‑survey inspection.
Flexible spare supply: Deliver full assembled units or separate tube‑bundle cores for local onboard overhaul, helping Japanese customers cut procurement and dry‑dock cost.







