Excavation is a method in which earthmoving machines remove dirt, soil, rocks, and other materials in order to create a trench, hole, pit, or foundation.
Early excavation methods took place with primitive tools such as shovels or fork-like devices that required extensive manpower in order to excavate a hole of large proportions.
These shovels were gradually enlarged to suit the excavation job. The use of hydraulics in an excavator improved the process of excavation
Spareage has developed some seals for this application and they are as follows.