1) Outlook design obtained the State patent No. (ZL01317793. 1)

2) Hydraulic system obtained the Stat patent No. (ZL01237657. 4)

3) QY50k with a max lifting load of 50 t at 3. 0 m working radius, the crane has a boom of 5 sections which are of large arc hexagon profile and 2 side jibs. The gravity center is lower ensuring good stability and high traveling speed. It is of high manuvrbility and can be used in various working occasions.

4) Derikking with a single front cylinder AF, double independent winches, pilot liquid proportion control system enabling micro-movement and easy operation.

5) Full and spacious cabin with good eye view, adjustable seat ensuring comfortness. Air conditioner and heater may be installed in case of need.

6) Steyr environment friendly engine Model WD615. 67A which meets the National omission standard GB17691-1999(Europe standard)

7) Operation cab designed economically enabling long time operation without being felt tyred.

8) New LCD supervisor shows all kinds of work. All switches are easy to approach enabling operation safely.

9) High performance balance value made with international technology and imported adapters enable stable and reliable operation.

10) Hydraulic value sets are designed with integrated mould block enabling little pressure loss, high efficiency and reliability.

11) Swing system has the free slewing mechanism which is controllable. Closed brake and buffer valve which realizes stable micro-movement.

12) Complete security fittings: Automatic moment limitor, kick-out units for over-rolling and over-releasing , ensuring high safety for operation.

13) The world’s first class hydraulic units can be fixed as option.

14) Air conditioner and heater, cold starter and high plateau fittings can be chosen as option.