Excavator parts DH300 Carrier Roller

Doosan DH300 carrier roller is an important part of Doosan DH300 excavator chassis, originated from Shandong, China, suitable for Doosan DH300 and related series excavators .It is forged with 42CrMo/40Cr above 20 tons or C45/40Cr below 20 tons, and is quenched and tempered by special heat treatment, the hardness reaches HRC40-50, with high strength and excellent wear resistance.