A SANY 21 ton medium excavator SY210C was used for quarrying in France.
The 21 ton mechanical digger machine’s self-developed DOMCS (Dynamic Optimization Matching Control System) intelligent control perfectly matches the engine system and hydraulic driving system, greatly increasing the operating efficiency by 6 percent, while with the fuel consumption reduced by 10 percent.
The matched auto idle speed function is designed for increasing the fuel efficiency and the stability of idling, maximizing the conformability of operation. The variable working modes, including heavy-duty mode, standard mode, light-duty mode and break mode, improves the versatility of the machine in different working environment.
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