Synonyms of excavator

2 Syllables
graders, collier, colliers, dredgers, digger, miners, backhoe, miner, grader, dredger
3 Syllables
troweling, trowelling, earthmover, trowelled, classicist, bulldozer, troweled
4 Syllables
archaeologist, archaeologian, paleologist, prehistorian
5 Syllables
paleontologist