Hydraulic excavator machine control system features a hydraulic excavator as a mainstream excavators, currently one of the electro-hydraulic steering wheel is the main development of small and medium sized hydraulic excavator digging machine prices, its aim is to achieve full automation of the hydraulic excavator ultra-small excavators machine prices, the study of the hydraulic excavator people, and gradually shift to the direction of electro-hydraulic control system, so that the excavator from the traditional to the progressive development of steering lever hydraulic control, pneumatic operated, electric steering, hydraulic servo-steering, radio control, electro-hydraulic the proportion of direct manipulation and computer manipulation. Therefore, the electro-hydraulic excavator integration studies focused on the hydraulic excavator control system. Hydraulic excavator control system for the power system of the engine, hydraulic pumps, multi-valve and actuators (hydraulic cylinders, hydraulic motors) or the like constituted to control the system. Press control function can be divided into the position control system, speed control system and force (or pressure) control systems; by the control element, can be divided into the engine control system, hydraulic control system, multi-valve control system, the actuator control systems and machine control systems. Currently, the hydraulic excavator control system has been developed to complex control system.泰安嘉 and Heavy Machinery Co. excavator mountainous plateau characteristics Caution use of construction machinery in the mountainous plateau during the construction is: because of high altitude, thin air, the engine power down small excavators, engineering machinery, steering and braking will have some adverse effects, it must take some technical measures to strengthen the maintenance and upkeep. Effect of Plateau Mountain construction machinery work with increasing altitude, atmospheric pressure and air density has declined, so reducing the amount of engine inflatable, reducing the engine output. In exceptional circumstances, the high temperature on the plateau of the engine power may be reduced by 40% to 50%. Due to the thin air, can not guarantee the normal fuel mixture than smaller excavator factory outlets, due to incomplete combustion caused by a cylinder, a piston and valve, etc. appear coke and gumming too quickly, increasing the wear of these parts. Low pressure on the plateau will reduce the boiling point of water, at an altitude of kilometers boiling point of water is only 86.8 ℃, thus making the engine cooling water consumption increases. Thin air compressor will cause reduced productivity, so that the reliability of pneumatic brake mechanism deteriorates.泰安嘉 and Heavy Machinery Co., prices of small excavators, Kerry and Heavy Industries (certified), sunshine mini excavators by 泰安嘉 and Heavy Machinery Co., Ltd .. Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) is Tai'an, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Heavy leader in Kerry and the staff warmly welcome all inquiries negotiations to create Kerry and heavy industry a better future.