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PLC fully-hydraulic die forging hammer is high and new technology machine, which is innovated from world advanced forging technology and completely developed by us. And it is also new type CNC forging equipment with high efficiency, energy-saving and environmental protection features. It's a key and important project in Jiangsu and No. 1 in China at the moment. In 2002, it was patented by China government.
Main Structural Characteristics:
A. intellectual CNC system
PLC fully-hydraulic die forging hammer is equipped with on-line electronic monitors for pressure, temperature and cleanness and PLC energy control unit as well as logic monitoring system. The electronic monitors are used to guarantee normal operation of the hydraulic system, while MSP processor will be responsible for comprehensive analysis technical data collected from on-line sensors, such as: tooling data, working oil pressure, blank deformation, etc. and then realizing automatic control for striking energy after calculation of those data and further come to the logic monitoring for the whole working procedure. With precise striking energy control, it can not only reduce vibration and noise generated by surplus striking energy but also increase the hammer's operational reliability and die life and further improve forging parts' quality and speed up working efficiency, etc. The logic control for the whole working procedure means monitoring working status of all devices and executing elements by certain software program. The date and pictures of the terminal machine in English can realize man-machine conversation and malfunction displaying.
 
B. high efficient tapered valve control
PLC fully-hydraulic die forging hammer is actuated by tapered valve, with advantages of high efficiency, energy-saving and fast speed due to prompt reaction, big flow-rate, simple construction, compact design, short oil pipeline, minimum pressure loss, etc.
 
C. unique driving structure 
PLC fully-hydraulic die forging hammer has combined cylinder construction. Because its striking frequency is basically similar to steam hammer, it needs fast speed of oil discharge when striking. By using the combined cylinder, it needs no oil pipes, no valves, less or no on-the-way resistance when charging and discharging oil; thus, it can finally realize fast striking and fast return.
 
D. safe sealing 
PLC fully-hydraulic die forging hammer is constructed with high and low pressure anti-leakage unit, so the little leakage due to incomplete sealing of the high pressure oil can go back to the tank through low pressure oil circuit. Low pressure sealing is just for preventing outside oil leakage, but high and low pressure sealing system can guarantee absolute sealing.

E. High reliability
By using advanced tapered valve hydraulic control system, the oil circuit can realize no-pipe connection to greatly simplify the structure, which is precondition for the operational reliability of forging hammer. Furthermore, modern electronic technique is widely applied to improve the control performance and increase the working reliability.