MINI SCREW JACKS

The mini-jack is a screw jack with a screw thread with a very small pitch and a small overall height. This mini-jack is used to preload piles or beams under existing structures and to jack up small structures. The mini screw jack is usually left behind in the structure. Mini screw jacks are available with lifting capacities of up to 90 kN. For larger lifting capacities two or more jacks can be placed next to each other. The preload can be adjusted by using a torque wrench.

APPLICATIONS OF MINI SCREW JACKS:

TECHNICAL INFORMATION ON MINI SCREW JACKS:

type lifting
capac.
A
min.
height
B
max.
height
capac.
max.
lifting
height
dimen.
base
C
wrench
width
weight weight/
turning
moment
  kN mm mm mm mm mm kg kN/Nm
4035 40 35 47 12 80x80 55 0,86 0,28
4040 40 40 57 17 80x80 55 0,95 0,28
4045 40 45 67 22 80x80 55 1,05 0,28
9060 90 65 90 25 110x110 75 2,60 0,24
(The values given above for force/turning moment are recommended values which can vary depending on the condition of the jack.)

Subject to alteration

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