1、重慶升降貨梯http://m.dddis.cn/使用的液壓油缸進行往復運動是，必須能夠保證其速度、牽引力等方面，設計時要盡量縮短其外形尺寸，使得結構變得緊湊。
The hydraulic oil cylinder used in the Chongqing elevator must be able to ensure its speed, traction and other aspects.

2、重慶升降貨梯活塞桿不能受壓，以免其彎曲變形，每一個零件都應有足夠的剛度、強度以及耐久性。
Chongqing lift cargo ladder piston rod can not be compressed, so as to avoid the bending deformation, each part should have enough stiffness, strength and durability.

3、避免重慶升降貨梯液壓油缸受到側向載荷，活塞、活塞桿和導軌之間應避免出現偏斜。
The hydraulic oil cylinder of the Chongqing elevator is avoided to be subjected to lateral load, and the deflection of the piston, the piston rod and the guide rail should be avoided.

4、重慶升降貨梯http://m.dddis.cn/液壓油缸的密封性能要好，能夠避免出現泄漏，應采用標準尺寸，以及標準件，還要考慮到一些措施。
The sealing performance of the hydraulic oil cylinder of Chongqing elevator is better, and it can avoid the leakage, the standard size and standard parts should be used, and some measures should be taken into consideration.