Marine Charge Air Cooler / Intercooler For Main & Auxiliary Engine | OEM Compatible

We specialize in marine charge air coolers (CAC) / intercoolers for main propulsion engines and auxiliary gensets. Designed for seawater corrosion, high pressure, and continuous vibration, our coolers ensure dense, cool intake air-critical for fuel efficiency, stable power, and long engine life.

What Is a Charge Air Cooler (CAC) / Intercooler?
Location: Between turbocharger and engine intake manifold.
Function: Cools 150–220°C hot compressed air from turbo, raising density & oxygen content.
Why It Matters:
+10–20% power output
-5–10% fuel consumption
Lower thermal load, reduce NOx & knocking
Protect pistons, valves, cylinder heads
Terminology Note:
Intercooler: Between turbo stages (multi‑stage turbo).
Aftercooler / Charge Air Cooler (CAC): After single turbo, before intake manifold (marine standard).

Marine Main Engine vs. Auxiliary Engine CAC
Main Engine (Propulsion)
Engine Types: 2‑stroke (MAN, Wärtsilä) / 4‑stroke (Cummins, Yanmar)
Cooler Size: Large, high flow, shell‑and‑tube
Cooling Medium: Seawater (direct) or freshwater (central cooling)
Key Demand: High heat rejection, vibration resistance, 24/7 operation
Auxiliary Engine (Genset)
Engine Types: High‑speed 4‑stroke (Cummins K19/K38, Volvo, Weichai)
Cooler Size: Compact, tube‑and‑fin or small shell‑and‑tube
Cooling Medium: Seawater or jacket freshwater
Key Demand: Space‑saving, lightweight, easy maintenance

Construction & Materials (Marine‑Grade)
Core & Tube Bundle
Tubes: CuNi 90/10 (standard), CuNi 70/30, 316L stainless steel, titanium (extreme corrosion)
Fins: Aluminum (high heat transfer), copper (corrosion resistance)
Tube Sheet: Carbon steel (clad), stainless steel, gunmetal
Housing & Water Box
Shell: Carbon steel (painted), 316L stainless steel
Water Box: Cast iron, gunmetal, stainless steel; with drain/vent plugs
Design Pressure: Air side 1.2–2.5 MPa; Water side 0.8–1.6 MPa
Sealing & Joints
Gaskets: Metal‑rubber composite, heat/oil/seawater resistant
Tube‑to‑Tube Sheet: Expanded + welded; helium leak tested

Applications
Container ships, bulk carriers, tankers, general cargo vessels
Offshore platforms, supply boats, tugboats, yachts
Main engine propulsion systems
Auxiliary gensets & emergency power units
Engine room overhaul, repair, and retrofit projects

Why Choose Us
15+ years focused on marine heat exchangers
In‑house R&D, manufacturing, and testing
Supplied to 50+ countries; deep marine application knowledge
Competitive factory pricing; reliable quality control
 

Contact
Provide engine model, OEM part number, cooling capacity, and vessel type for quote & drawings.
Email: [email protected]