1. The parallel position of radiator and oil cooler ensures the heat balance in various complex working conditions.
2. The counterweights loaded from the rear end improve the disassembling efficiency.
3. The central overhaul passageway offers more convenient maintenance.
4. Double-row four point contact ball slewing bearing ensures the stable slewing when heavy loaded.
The excavator can meet the requirement of heavy-load excavating and rugged construction environment, featuring better durability, reliability, and safety.