On impact by mass material in motion, the piston rod gradually moves into the shock absorber and
stops up the orifices (Deceleration of cross section of orifice) and the hydraulic fluid in inner tube
spurts out outer tube throughout the orifices and the hydraulic fluid flows in the top end of the inner
tube throughout the oil returning hall and the excess hydraulic fluid gets stored in accumulator
temporarily.
At the end of the impact stroke, the return spring pushes the piston and the hydraulic fluid flow into
inner tube rapidly throughout check value for next cycle.
This system absorbs the impact shock gradually and at a constant rate (Deceleration of cross sec
tion of orifices and deceleration ratio of the piston back speed) and the piston transer is smooth and
quiet.
