Large excavator EX1200-7

crawlerTier 2electric

EX-7 series is refined from more than 100 years of group company expertise, integrating intelligence, safety and ultimate efficiency.The EX1200-7 is a unique excavator within the Hitachi range, adapting to many different operations. At its core lies clever and complex engineering; on the surface is a beautifully simple, operator-friendly machine. Each individually controlled hydraulic pump utilizes its own electric regulator. This delivers enhanced engine power, lower fuel consumption, and more efficient performance. HYDRAULIC REGENERATION CIRCUIT The boom, arm and bucket are fitted with a flow regeneration valve to reduce power requirements from the hydraulic system and engine, lowering fuel consumption and improving pump life. ENGINE-PUMP (E-P) CONTROL Hitachi’s computer-aided Engine-Pump (E-P) Control achieves optimum productivity from the engine and hydraulic pumps. The innovative system senses load demand and controls engine and pump output to match the work being performed, maximizing operating efficiency and lowering fuel costs for large workloads. HYDRAULIC OIL COOLER SYSTEM A redesigned hydraulic oil cooler with variable speed fan reduces energy demand and creates a more reliable hydraulic system. The oil cooler is kept separate from the radiator to keep hydraulic oil cool more effectively. Time and effort spent cleaning is drastically reduced, and service life of hydraulics is extended. RADIATOR FAN MOTOR The radiator fan is now driven by a hydraulic system, replacing the previous mechanical drive system. The fan automatically adjusts to meet engine requirements, creating an optimized cooling system with less horsepower demand and less operational noise.