SANY large excavator show higher performance

10 April,2017

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The engine of SANY big diggers, with a dual-pump, dual-circuit constant power control system, can fully develop its power to provide a strong operating force. Optimized operation performance of the engine reduces the loss of power. The engine is designed to work in four modes according to different working conditions.

 
SANY big diggers’ working efficiency is greatly improved compared to other models, accelerating by 8%. Innovative controller with faster computation and more accuracy reduces the response time of hydraulic elements, lowers the internal power loss of the system and increases the operating output power. The fuel consumption of the big diggers is decreased by 10%, and the positive flow controlled hydraulic system considerably reduces fuel consumption. 
 
Advanced computer dynamic control technology used in the big diggers provides real-time match between engine power and main pump power. Four power modes maximize the fuel economy. It is fully integrated with sensors of fuel, engine oil, air intake, coolant and exhaust system to conduct the real-time monitoring and auto-adjustment on the system conditions, which can ensure the engine won't overload when the excavator works with full load.
 
Enhanced work equipment can bear high pressure of quality hydraulic elements and circuits, and strengthen the digging force of the big diggers. Advantage of positive flow controlled hydraulic system is that the main pump’s displacement is directly proportional to the signal pressure from the pilot joystick. The controller determines the flow demand and variation trend of the actuator, and regulates the displacement. A real-time match of flow is achieved in the system, “What you get is what you need.”
 
Having been through CAE-Optimized design and enhanced experiment, the working implement of the SANY big diggers is able to operate in extremely demanding environment.
 
SANY big diggers have a top-brand engine, in line with EU Tier 2 Emission Standard, highly efficient with lower fuel consumption. The perfectly-matched electric-hydraulic control system ensures better precision, flexibility and efficiency of all operations. Box-shaped swing platform girder greatly improves rigidity.

 

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