液壓缸的結構基本上可以分為缸體組件、活塞組件、密封裝置、緩沖裝置和排氣裝置五個部分。缸體組件和密封裝置構成液壓缸的密封容積來承受液壓力，所以缸體組件要有足夠的強度、剛度和可靠的密封性。

1、升降機法蘭連接式，結構簡單，容易加工，也容易裝拆，但外形尺寸和質量都較大，常用于鑄鐵制的缸筒上。
Speaking lifts lift manufacturers flanged, simple structure, easy to process, but also easy assembly and disassembly, but the dimensions and quality are larger, the commonly used cast-iron cylinder.

2、半環連接式，它的缸筒壁部因開了環形槽而削弱了強度，為此有時要加厚缸壁，它容易加工和裝拆，質量較輕，常用于無縫鋼管或鍛鋼制的缸筒上。
Lift manufacturers introduced a half loop-connected, its cylinder wall due to open the annular groove weakened strength, for sometimes thicker cylinder walls, its easy processing and assembly and disassembly, light quality, commonly used in seamless steel or wrought steel cylinder barrel.

3、升降平臺廠家談到螺紋連接式，它的缸筒端部結構復雜，外徑加工時要求保證內外徑同心，裝拆要使用專用工具，它的外形尺寸和質量都較小，常用于無縫鋼管或鑄鋼制的缸筒上。
Speaking lift manufacturers threaded connection type, cylinder ends its complex structure and, where required to ensure that the outside diameter of the outer diameter of the inner concentric machining, assembly and disassembly use a special tool, its dimensions and quality are less commonly used in seamless steel or cast steel cylinder barrel.

4、升降平臺廠家介紹拉桿連接式，結構的通用性大，容易加工和裝拆，但外形尺寸較大，且較重。
Lift manufacturers introduce rod connection type, universal structure of large, easy processing and assembly and disassembly, but the larger dimensions and heavier.