4682425/4682426 EX1200-6 Oil Cooler

4682425/4682426 EX1200-6 Oil Cooler 

The EX1200-6 is a large hydraulic excavator model manufactured by Hitachi Construction Machinery. The oil cooler in the EX1200-6 is a crucial component responsible for maintaining optimal operating temperatures of the hydraulic system by dissipating heat generated during operation.

Here are some general features and specifications of the oil cooler commonly found in excavators like the Hitachi EX1200-6:

1. **Purpose**: The oil cooler is designed to dissipate heat from the hydraulic fluid circulating in the excavator's hydraulic system. This helps prevent the hydraulic fluid from overheating, which can lead to reduced performance and premature wear of hydraulic components.

2. **Construction**: The oil cooler typically consists of a series of finned tubes through which the hydraulic fluid flows. Ambient air is forced through the fins by a fan or through natural convection, cooling the hydraulic fluid as it passes through the tubes.

3. **Cooling Capacity**: The cooling capacity of the oil cooler is determined by factors such as the size of the cooler, the flow rate of the hydraulic fluid, and the ambient temperature. Larger excavators like the EX1200-6 may require oil coolers with higher cooling capacities to effectively dissipate heat generated by the hydraulic system.

4. **Mounting**: The oil cooler is usually mounted in a location where it can receive a sufficient flow of ambient air for cooling. It may be mounted on the excavator's frame or integrated into the hydraulic system itself.

5. **Maintenance**: Regular maintenance of the oil cooler is essential to ensure optimal performance and prevent overheating of the hydraulic system. This may include cleaning the cooling fins to remove debris and checking for any signs of damage or corrosion.

6. **Temperature Regulation**: Some oil coolers may be equipped with temperature sensors and control valves to regulate the flow of hydraulic fluid through the cooler based on the temperature of the fluid. This helps maintain the hydraulic system within a safe operating temperature range.

For precise information about the oil cooler used in the Hitachi EX1200-6 excavator, including its specifications and maintenance requirements, consulting the excavator's technical manual or contacting Hitachi Construction Machinery's customer support would be advisable.