通常情況下，重慶貨梯http://m.st-image.cn/采用單作用液壓缸，在較為干燥的空氣中使用。當浙江貨梯起升時，油箱中的油通過機泵等設備在大氣壓力下進入液壓缸下腔，上腔排氣，液壓缸伸出，臂板支起，浙江貨梯便升起來，然后上腔的氣體通過排氣管進入油箱液面上，再通過油過濾器進入大氣；當重慶貨梯下降時，下腔排油，上腔吸氣液壓缸縮回。重慶貨梯液壓缸吸排油一次升降一次，頻繁用于生產線上的浙江貨梯升降次數可達200次/天。
In general, the Zhejiang cargo ladder using a single acting hydraulic cylinder, in the more dry air in the use of. When the goods in Zhejiang ladder lifting, oil tank through the pumps and other equipment in atmospheric pressure into hydraulic cylinder cavity, on the exhaust cavity, out of hydraulic cylinder, supporting arm board, Zhejiang goods ladder will rise up, and then on the cavity of the gas through the exhaust pipe into the liquid fuel tank, and then through the oil before filter into the atmosphere; when the decline in Zhejiang goods ladder, inferior oil drain, on the suction cavity hydraulic cylinder retracted. Zhejiang cargo ladder hydraulic cylinder oil suction and discharge once,frequently used in the production line of Zhejiang cargo lift up to 200 times the number of times.  

在潮濕環境中，重慶貨梯http://m.st-image.cn/下降時，上腔吸氣空氣中的水分進入液壓缸上腔，直接與缸筒內壁金屬作用，出現銹層，使本來光亮的缸筒內部發黑，來回作用出現剝落，重慶貨梯下沉明顯需要更換液壓缸。
In damp environment, Zhejiang goods ladder fell, moisture on the suction cavity air into the hydraulic cylinder, direct and inner wall of the cylinder metal interaction, rust layer, make originally bright inside the cylinder barrel black, and effect of flaking, Zhejiang goods ladder sinking obviously need to replace the hydraulic cylinder.