Rated oil flow:60L/min
Motor rotate speed:1470r/min
oil tank capacity:360L
System temperature :20-60ºC
oil filter precision:20υm
System oil type:L-HM46# antiwear hydraulic oil
theory lifting capacity:125KN
Rated lift capacity:120KN
rated oil pressure:12MPa
Installation size for up and down chuck: settle 3 *14U hole on the circumference of a φ120 circle
Suitable lifting rod:φ30round steel(45#)
chuck device: screw mechanism
Total height:4460mm (will be confirmed after design)
Lifting rod height:3900mm
Slider stroke:3630mm (will be confirmed after design)
distance between expansion loop support to ground:310mm
Principle of the 12t hydraulic jacks system
Principle of the erection system
The following short description gives the working procedure in outline. It can in certain details be modified when required.
Step 1. The tank bottom - plates are placed on the prepared foundation and welded together.
Step 2. The beams or lattice work of the roof are assembled and finally joined to the upper rim of the shell ring.
Step 3. The jacking equipment is installed in the tank. The plates of the second shell ring (next to the top ring) are positioned outside the first one.
Step 4. The completed part of the tank (roof and top shell ring) is lifted hydraulically to a height at which the plates of the second ring can be moved into place and the roof sheeting can be completed.
Step 5. The plates of the second shell ring are located exactly and welded together to the lower edge of the first ring.
Step 6. The plates of the third shell ring are placed outside the second shell ring.
Step 7. The completed part of the tank (roof the two uppermost shell rings) is lifted.
Step 8. The above cycle of operations is repeated until the last (bottom) shell ring is finished.
Step 9. The entire tank is lowered down to the bottom plate and welded to this.
Step 10. The lifting equipment is dismantled.