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● Full—hydraulic reversing open type system with high cleanliness of hydraulic liquid，low oil temperature and less reversing impulsion；
● Auto—return concrete piston makes the replacement of concrete piston more convenient and much faster;
● Full automatic switch between high and low pressure，toggle switch operation，free of leakage and pollution of the hydraulic liquid aswell asfast dredge ofthe blocking pipe；
● The electric—hydraulic proportional control technology is able to realize infinitely variable control on the pump displacement；
● PLC control real-tlme text dlsplay of lnformation of worklng condltions ensures safe and reliable operation；
● Wired remote facilitates the mamtenance and operation
● The main oil cylinder adopts proprietary technology of water—proof packingt o effectively avoid emulslfication of the hydraulic liquid;
● Advanced S—tube valve system with good leak tightness，simple structure and convenient replacement of the wearing parts；
● The proprietary hard—carbide glasses plate and the cutting ring prolongs service life；
● Main hydraulic components are ofwell—known international brands with high reliability
