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335611
Radiator Model 335611 is purpose-engineered exclusively for the Hitachi EX3600 Mining Excavator. When hot compressed air passes through the radiator core, thermal energy is transferred from the air to the inner surfaces of the tubes. The fins enhance efficient thermal conduction by expanding the contact area between the air and the tube walls; this design directly maximizes the overall cooling efficiency of the unit. Subsequently, as ambient air flows over the fins, the thermal energy absorbed by the tube walls is dissipated into the surrounding environment.
Features
Superior Cooling Efficiency: It facilitates the rapid reduction of charge air temperature, which in turn increases air density and enhances the overall efficiency of the combustion process.
Lightweight Aluminum Construction: The aluminum structure enables fast heat dissipation while reducing component weight. This dual advantage improves fuel economy and contributes to the reduction of the vehicle's overall weight.
Robust High-Pressure Sealing: By adopting vacuum brazing and multi-point welding technologies, the component ensures it can withstand pressure and vibration, allowing it to adapt to complex operational environments.
Aluminum Radiator List
CAT | 320-8196, 323-1741, 533-8330, 534-7440, 534-3807, 535-4527, 535-4523, 387-4367, 2W-6587, 2W-6593, 7W-5455, 7W-2173, 9Y-3318, 7C-3385, 2W-5539, 2W-5540, 2W-6632, 223-5118, 374-3545, 387-4366 |
KOMATSU | 427-03-22820, 6251-61-5110, 569-03-89191, 6212-62-4100, 423-03-32212, 423-03-32211, 426-03-37591, 426-03-37571, 427-S05-1810, 195-03-63114, 195-03-65181, 195-03-43400 |
HITACHI | 4682425, 4682426, 4444691, 4658096, 4427952, 4729782, 4421620, 335611, 4439687, YA00008446, 1386-621-100, 1381-639-801, 1381-639-8020, 1381-639-8030 |
LIEBHERR | 10000392, 5617986, 5617987, 11823532, 11821219, 11821218, 5611936, 5611937, 10333648, 10333649 |
Maintance and Service
Customized Solutions – We provide tailor-made cooling systems to meet the exact requirements of your engines and working environments.
How We Produce
Our aftercoolers are built using advanced CAD modeling and thermal simulation—delivering optimized airflow and top-notch cooling efficiency you can count on. We use high-grade aluminum alloy, which brings top-tier thermal conductivity and corrosion resistance to the table—key for making sure it lasts.
Our fin-and-tube assemblies are precision-crafted to boost heat transfer area, while vacuum brazing creates tough, leak-free component bonds. To add even more reliability, we reinforce critical joints with TIG or MIG welding—so it holds up no matter what.

Pictures of Sinrui's production workshop, raw materials
Radiator product packaging and delivery