Main feature 1.Manual single-side unlocking, ease the off-operation. 2.Adopt the hydraulic lock and the main insurance positioning structure and rope breaking resistant insurance mechanism multiple safety device, safe and reliable. 3.Adopt the hydraulic failure and overload safety valve protection, in the event of rope breaking and insurance mechanism failure, the machine cannot be decreased rapidly. 4.The lengthened double-level rear sliding plate, the position of front wheel turn plate can be adjusted, the applicable for various models (f4 type). 5.Adopt the secondary lifting trolleys sliding rail, a number of secondary lifting trolleys are optional. 6.The platform horizontal adjustment is very convenient, accurate, adapted to high precision 4 wheel positioning monitoring (f4 type). 7.The inside distance of adjustable lifting platform for different vehicles with different treads. 8.Receive 115% dynamic of adjustable 150% static testing. 9.Accord with standard of european union ce. Technical specification Modeldk-50f4/dk50f4d Capacity5000kg Max. Height1800mm Lifting time50s Secondly lift weight2000kg Secondly lift height350mm Secondly lifting time10s Pump station power3.0kw, 50hz Power supply380v/220v Oil pressure18-20mpa