Hydraulic Oil Radiator for Hitachi220-5
Hydraulic oil radiator for Excavator Hitachi220-5
Characteristics
● Hydraulic oil radiator is an all aluminum plate-fin heat exchanger, designed as an exact fit, OEM replacement for excavator with famous brands in the world..
● It is built using our most durable heat exchanger design that is capable of withstanding tremendous heat and pressure. Plate-fin heat exchanger, under higher pressure.
● Our radiators are made of high-quality aluminum, which improves heat dissipation efficiency and ensures that your equipments works normally and efficiently
Hydraulic Oil Radiator System for Hitachi EX220-5 Excavator
The hydraulic oil radiator (also called hydraulic oil cooler) in a Hitachi EX220-5 excavator is a critical component that maintains proper hydraulic oil temperature for optimal machine performance and longevity. Here's a detailed explanation of its function and operation:
Function and Importance
The hydraulic oil radiator serves to cool the hydraulic fluid that circulates through the excavator's hydraulic system. Maintaining proper oil temperature is essential because:
Temperature Regulation: The radiator keeps hydraulic oil between 40°C and 55°C, with 45°C being the ideal operating temperature 1. This temperature range ensures consistent molding cycle times and proper viscosity.
System Protection: Overheating hydraulic oil can lead to accelerated component wear, seal degradation, and reduced system efficiency 6.
Components and Operation
The hydraulic cooling system in the EX220-5 consists of several key components:
Oil Cooler: A heat exchanger that transfers heat from the hydraulic oil to cooling water or air.
Temperature Control Valve: Adjusts the flow of cooling medium (typically water) through the oil cooler based on hydraulic oil temperature 1. Turning the valve clockwise increases cooling water flow for greater cooling capacity.
Reservoir: Holds the hydraulic fluid and allows heat dissipation.
Thermometer: Monitors oil temperature to ensure it stays within the optimal range 1.
Common Issues and Maintenance
Several factors can affect the performance of the hydraulic oil radiator:
Contamination: Dirty hydraulic fluid can reduce cooling efficiency and cause overheating 6. Regular fluid checks and changes are essential.
Blockages: A blocked heat exchanger will significantly reduce cooling capacity. Infrared thermometers can help diagnose temperature issues 6.
Low Fluid Level: Insufficient hydraulic oil in the reservoir reduces the system's ability to dissipate heat 6.
Wrong Oil Type: Using incorrect viscosity oil can lead to overheating. Thin oils may cause internal friction and excess heat generation 6.
For the Hitachi EX220-5 specifically, regular inspection of the hydraulic oil radiator for debris buildup (common in excavator applications) and checking for leaks in the cooling system are important maintenance tasks. The system's performance can be monitored by observing the hydraulic oil temperature gauge and ensuring it remains in the optimal 40-55°C range
