hydraulic pump

Pump is engine equipment of jacks. AB4-500 and ZB4-500S type hydraulic pump is engine and operation parts of pulling machine for strand and steel bar, is accessed with all kinds of jacks which is of specified oil pressure below 500Mpa, moreover it can be used for other type low flow-meter but high pressure hydraulic machine. ZB4-500S is designed on the basis of ZB4-500, which is installed a valve of three position four way directional valve; it has advantage of which you neednt to change the oil pipe and finish the work of tension and anchorage in same course.

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