油压启闭机自问世以来,由于其独特之优点,已日益广泛地为许多水利工程所采用.但因使用要求千差万别,加工条件各不相同,所以往往是针对具体情况个别设计制造.在制造加工中,最大的难题是:用作柱塞和油缸的无缝钢管加工长度长,光洁度要求高,非一般机械加工设备所能制造.况且,县社级的中小型水闸,一般需要台数不多,若搞一套专用设 Hydraulic hoist since its inception, because of its unique advantages, has been increasingly widely used in many water conservancy projects.But due to the different requirements, processing conditions vary, so often individually designed and manufactured for the specific circumstances in the manufacture Processing, the biggest problem is: seamless steel pipe used as plunger and cylinder length, long finish, non-standard machining equipment can produce. Moreover, the county level of small and medium-sized sluice gate, generally require a small number If you engage in a dedicated set