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Case CX490D / CX490D LC / CX500D Excavator Radiator Assembly LN003100
FUNCTION
1. Engine Cooling Function:Circulating coolant absorbs the heat generated by the Isuzu 6UZ1 engine, while a hydraulically driven fan facilitates forced heat dissipation to maintain the engine's optimal operating temperature, thereby preventing power loss or mechanical failure caused by overheating.
2. Hydraulic Oil Cooling Function:Reduces the temperature of the hydraulic system fluid, preventing the hydraulic oil from degrading, losing viscosity, or forming bubbles under high-temperature conditions. This protects critical components-such as hydraulic pumps, valves, and cylinders-and extends the overall service life of the hydraulic system.
3. Intake Air Intercooling Function:Cools the high-temperature air discharged from the turbocharger to increase intake air density. This optimizes combustion efficiency, boosts engine power output and fuel economy, and simultaneously helps reduce exhaust emissions.
4. Integrated Thermal Balance Management:Integrates the radiator, oil cooler, and intercooler into a single modular unit. This design optimizes spatial layout and airflow pathways, enabling synergistic heat dissipation across the engine, hydraulic, and intake systems, thereby enhancing the machine's overall reliability in harsh operating environments-such as those involving high temperatures, heavy dust, or mining operations.
5. Protection and Stabilization Functions:Equipped with protective mesh screens to minimize clogging caused by dust accumulation. When paired with a high-ambient-temperature cooling package, the system ensures the equipment continues to operate efficiently and continuously even in extreme climatic conditions, thereby reducing the risk of overheating alarms and unplanned downtime.
Brief Description of Operating Principles
1. Engine Cooling Cycle:The engine generates a significant amount of heat during operation. The water pump circulates coolant through the engine block and cylinder head to absorb this heat, after which the heated coolant is pumped into the radiator tank. As the coolant passes through the aluminum tube-and-fin core, it undergoes heat exchange with the ambient air; a forced-draft fan blows air across the core to dissipate the heat. The cooled coolant then flows back into the engine, completing a closed-loop circulation cycle.
2. Hydraulic Oil Cooling Process:The hydraulic system generates high pressure and frictional heat during operation. Hydraulic oil flows into an integrated oil cooler, where it exchanges heat with the ambient air via the cooler core. Once its temperature has been reduced, the oil returns to the hydraulic reservoir, thereby preventing oil degradation, viscosity loss, or component damage.
3. Intake Air Intercooling Process:After being compressed by the turbocharger, the intake air experiences a substantial rise in temperature; this hot, high-pressure air then enters the intercooler. The intercooler utilizes ambient air to facilitate heat exchange, thereby lowering the intake air temperature and increasing its density. This process promotes more complete combustion within the engine, resulting in increased power output and reduced emissions.
4. Temperature Control and Protection:The system employs a combination of thermostats, temperature sensors, and fan speed controls to achieve intelligent thermal management. When temperatures rise excessively, the fan speed automatically increases; furthermore, an expansion tank regulates system pressure to accommodate coolant expansion, thereby preventing over-pressurization or boiling.
Installation Location
It is mounted in front of the engine-situated immediately adjacent to the hydraulically driven fan and fan shroud-and is typically positioned either forward of the cab or behind the right-side panel, facilitating easy access via the side door for maintenance.
Secured to the front end of the vehicle frame using mounting brackets and bolts, it connects to the engine coolant lines, hydraulic oil lines, and intercooler intake lines. The front face of the radiator core is oriented toward the incoming airflow, while its rear side connects to the fan system.
DETAILS
| DESCRIPTION | Radiator Assembly | PART NUMBER | LN003100 |
| WEIGHT |
45KG |
VOLUME |
1230 mm × 520 mm × 125 mm |
| TRUCK MOLDE | case | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | CHASSIS |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
The radiator assembly serves as a critical cooling component that safeguards the machine's overall power output, hydraulic performance, and long-term operational stability. By facilitating highly efficient, multi-system collaborative heat dissipation, it effectively minimizes malfunctions within the engine and hydraulic systems, thereby boosting equipment uptime and operational efficiency. Consequently, it acts as a core safeguard for large-scale excavators deployed in high-intensity applications, such as earthmoving projects and mining operations.
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