Buffering antedisplacement hydro-cylinder of reach truck

The utility model relates to a hydro-cylinder has especially related to a buffering antedisplacement hydro-cylinder of reach truck including cylinder (1), be equipped with piston rod (2) in cylinder (1), piston rod (2) tip is equipped with piston (4), is equipped with ladder through-hole (5) that the axis is on a parallel with piston rod (2) in piston (4), is equipped with valve piece (6) in ladder through-hole (5), and the ladder department at ladder through-hole (5) is supported through spring (7) in valve piece (6), and the diameter of first hole (51) is lighter than the diameter of second hole (52), and the tip of second hole (52) is equipped with the middle part and lies in and support the ladder department at ladder through-hole (5) between spring holder (8) and valve piece (6) and with valve piece (6) for the spring holder of through-hole (8), spring (7) the utility model discloses can effectively prevent the direct striking of piston surface around the cylinder, the life-span of improving the piston to increase the life of hydro-cylinder.