According to the official information of Caterpillar, the main pump of the CAT345GC excavator has a maximum flow rate of 630 l/min (166 gal/min), and the working hydraulic circuit pressure, as well as the travel hydraulic circuit pressure, is 35 MPA (5076 psi), and the swing hydraulic circuit pressure is 28 MPA (4061 psi).
In addition, the engine model of the CAT345GC excavator is C9.3B, with a rated power of 258 kW at 1900 Drehzahl, a displacement of 9.3 L, and a working weight of 42200 kg. These parameters are related to the main pump and can help you comprehensively understand the performance of the main pump in the entire excavator system.