Hydraulic excavators condition monitoring and troubleshooting system condition monitoring of hydraulic excavators and troubleshooting system plays an important role in improving maintenance mode, to ensure safe operation and eliminate accidents and so on. The system currently has two forms: one is a diagnostic computer - in the form of a handheld terminal insertion machine system, such as Japan's Hitachi Construction Machinery Company Dr.EX fault diagnosis system; the other is a system of random installation of mini excavators price, such as Germany's O & K condition control system (BCS) for small and medium excavators prices, which pioneered the use of satellite communications technology, each station job Excavator residence status and fault by the onboard transmitter transmits to a geostationary satellite , and then by the transponder on the satellite sent back service management center, the functioning of the various real-time display on the computer screen excavator management center. Automatic excavation control system using a laser transmitter automatic excavation control system, the basic principle is to set up a rotary laser transmitter at the construction site, it can control the number of excavators in the same datum requested operation. Equipped with a laser receiver on the excavator, on which there are three optical target - upper and lower target and the reference light optical target. When the laser beam emitted from the laser emitter reference light just hit the target, work equipment is kept at ideal excavator working surface requested operation. If the change in external factors make excavator working device deviates from the ideal working surface required, the laser beam is incident on the glazing or target or target shooting in the next light, the operation means has produced the phenomenon of deviation. Then polish the target or targets will light under the light signal into an electronic command signal is provided on the excavator driven diverter valve action, so as to control the flow of hydraulic oil, so excavator working device required to return to the ideal Face on the job. Using a laser transmitter automatic excavation control system can greatly reduce the labor intensity of the driver, and get a better quality of excavation work. Taian Jia and Heavy Machinery Co., Ltd. excavator hydraulic control valve control system 1) complete load sensing control system is fully load sensing control system consists of load-sensing control valve and variable load sensing control pump. It said load sensing control valve solves only fine-tune performance spool and complex operational performance ultra-compact excavator price, but does not solve the problem of saving energy. Dosing pumps and load sensing control valve system does not save energy consumption, since the output of the pump flow rate exceeds execution flow element (hydraulic cylinders and hydraulic motors) are required for domestic small excavators prices, excess oil pressure compensated valve back into the tank (in order to maintain constant pressure) becomes heat. Only complete load sensing control system to solve the problem of saving energy. 2) with secondary pressure compensating valve load sensing system Germany Rexroth companies (including Atlas company, Eder companies) set up the load-sensing shunt LUOV in its production of hydraulic excavators (Last Unabhangige Durchfluss Vereilung) system, its main role is: When multiple actuators simultaneously, the required flow rate is greater than the pump flow is generated when oil supply shortage, which can not be executed under the control table load pressure-independent components is assured. LUDV system ensures that all the operating speed of the actuator by proportional decrease in oil supply is insufficient to obtain a load pressure-independent control.泰安嘉 and Heavy Machinery Co., Ltd. Super mini excavator price | Kerry and Heavy Industries (certified) | Handan mini excavator price offered 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.