The hydraulic car is made of 4mm steel plate, and the welding strength is reliable without breakpoints; Integral casting cylinder of hydraulic car, the descending speed of the cylinder is not affected by the load, the imported sealing ring is adopted, the piston rod is chrome-plated, and the internal relief valve of the hydraulic car provides overload protection to effectively reduce maintenance costs, and the rotary shaft connection adopts high-quality radial roller bearings, which is flexible and non-jitter, and the integrated cast wheel frame is equipped with front and rear guide wheels to protect the matching wheels from impact and prolong the life of the wheels. Quick and easy to enter and exit the tray, the moving part of the hydraulic car is equipped with wear-resistant guide rings to absorb eccentric load and prolong the service life, and the handle fork is equipped with rubber pads, which greatly prolongs the service life.