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.