A Radiator Coolant Expansion Tank, also known as a coolant reservoir, is used in the cooling unit of the machine. The purpose of the coolant tank provides a space for the water to expand and contract as it heats up and cools down during engine operation. As the engine cools, the coolant is drawn back into the unit from the expansion tank, ensuring that the coolant level remains consistent and minimizing waste.

Attributes:
• Helps to prevent coolant loss and potential damage to the engine
• Withstands harsh working conditions encountered during the operation

Applications:
A Radiator Coolant Expansion Tank helps regulate the pressure within the cooling unit by providing a space for the water to expand without causing over-pressurization. It helps prevent damage to the cooling unit components and maintains the machine's operational safety.