液壓缸缸筒內壁嚴重劃傷后給液壓式升降機帶來了很大影響，缸筒內壁劃出的溝槽會使液壓缸有桿腔和無桿腔的油液互相流竄，劃傷原因大致可歸結為長期使用維護不及時，濾油器濾芯損壞或過濾效果下降，從而導致液壓油里的鐵屑或者其他材質顆粒物無法及時消除，這些較硬顆粒物的存在是導致液壓缸劃傷的主要原因。
Lift manufacturers analyze the inner wall of the cylinder after the cylinder to hydraulic lifts severely scratched a big impact on the inner wall of the cylinder groove will draw rod hydraulic cylinder rod chamber cavity and the oil flows from each other, scratches the reason can be broadly attributed to long-term maintenance is not timely, the oil filter cartridge is damaged or filter effect is reduced, causing the hydraulic oil in the iron particles or other materials can not be promptly eliminated, the presence of these particles are harder lead cylinder scratch the main reason.
   
如果長時間停機，前述金屬顆粒物堆積在液壓缸的無桿腔，分布在活塞頭與剛筒內壁接觸的位置，由于使用頻繁年限較長，液壓缸活塞桿與缸筒之間的同軸度有一定偏差，當再次啟動上下運行時，活塞桿會產

生輕微擺動，液壓缸活塞與缸筒你內壁之間產生縫隙。當液壓缸活塞桿回程時，就會拖動卡在縫隙里的金屬顆粒運動，金屬顆粒與缸筒內壁之間的摩擦產生瞬間高溫，就會燒結到一起成為一個整體。在液壓缸長時間運動過程中，這種燒結點就會長期刮擦光滑的缸筒內表面，產生了深淺不一面積不等的劃傷區域。
Lift manufacturers reminder if prolonged shutdown of the metal particles accumulate in the hydraulic cylinder rod chamber, located at the head position of the piston in contact with the inner wall of the barrel just because of the

frequent use of the same service life is longer, the hydraulic cylinder piston and cylinder between there is a certain degree axis deviation, when started running up and down again, the piston rod will produce a slight swing, hydraulic cylinder piston and cylinder you generate a gap between the inner wall. When the hydraulic cylinder piston rod return, it will drag the card in the slot in the metal particle motion, friction metal particles and between the inner wall of the cylinder to produce instant high temperature, it will sinter together into a whole. Prolonged exercise in the cylinder during this firing point will long scratch the cylinder surface smooth, resulting in shades ranging from area scratched area.