Oil cylinder with earrings at both ends: when the piston retreats to the cylinder head, L 1 is the minimum length of the designed structure, s is the distance from the piston to the cylinder head, and L 1+S is the distance between two earrings.

1.330-530 oil cylinder: if the stroke S=200, then l1=130,330 is the installation distance.

2.530-705 cylinder: stroke S= 175, then L1= 355,530 is the installation distance.

3.540-840 cylinder, stroke S=300, then L 1=240.540 is the installation distance.

L 1+S should be greater than or equal to the standard cylinder size. L 1 is the size of the locating joint at both ends minus the stroke after the cylinder is retracted. The length of piston and guide sleeve and the main installation distance of cylinder head and earrings can be determined (as close as possible to the standard cylinder size).