Lifting operation hydraulic system should be no-load operation, adjust the lifting sleeve frame roller and the mast section clearance, hoisting torque and balance torque balance;
顶升作业时液压系统应进行空载运转，调整顶升套架滚轮与塔身标准节的间隙，使起重力矩与平衡力矩保持平衡；
Lace galvanized frame molding equipment adopts the principle of the average stress, also the average stress of roller, the balance of the wear, prolong the service life of roll.
花边镀锌门框压型设备采用各排平均受力原则，全线滚轮平均受力，磨损均衡，延长轧辊使用寿命。
Line consists of a feeding metal frame, leveler grooving roller, hydraulic notch and punch square machine, hydraulic shearer and folder.
风管生产线是由上料架调平压筋机冲尖口和冲方口油压机液压剪板机液压折边机所组成。
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