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Hydraulic support column of hydraulic cylinder can be divided into the single-acting cylinder according to the function way and double-acting hydraulic cylinder, hydraulic support pillar belongs to the double effect of double telescopic hydraulic cylinder, the hydraulic support column from outside cylinder, secondary cylinder, live column and guide sleeve, etc, in order to guarantee the working resistance of hydraulic support to achieve the original design, require pillar parts action sequence according to the secondary cylinder action all the schedule, the order of the second action live column, through the secondary cylinder installed at the bottom of the check valve.

The above is the general structure composition and working principle of the hydraulic support column, henan Shuangzhi hydraulic support column, hydraulic support jack production quality is stable and reliable.