Product features The XFZY-4 suspension seat is specially designed for middle class and high class project mechanics vehicle .Its suspension structure is made up of one hydraulic shock absorber and two tension springs .There is a rubber cover dustproof protection on the bottom socket to prevent sewage and dusts .Seat back,backrest ,headrest are all made by adoping one time vacuumed foaming molding technology . Technical parameters Total height of seat: 970mmWidth of seat cushion: 510mmWidth of seat backrest: 510mm Scope of Fore and Aft adjustment:150mmMax load of the seat: 50kg-130kgSuspension stroke: 80mmScope of height adjustment: 60mm (20mm×3)Angle of seat backrest adjustment: 27.5°,and the back can fold to the frontSkin material: Black PVCOptional accessories Headrest Armrest Seat belt