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Hydraulic Jacking Systems Hydraulic Jacking Systems
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Hydraulic Jacking Systems Hydraulic Jacking Systems

Advantages & Applications


Safety :
Hydraulic tank jacking is proven and safest way to construct storage tanks. This method as replaced by old tradional method of using all cranes and scaffoldings.
By using hydraulic tank jacking all the work is done a ground level and hence no accidents.
Faster Completion :
During errection/fabrication, shell plates are placed at the ground instead of higher level, hence saving time and adhering to safety.

By adopting tank jacking method, construction can be done during rainy season,since construction is done inside the tank and with the protection of tank shell plates.
Ease Of Operations :
Since the welding is done almost ground level,safety of the workers and also inspectors can inspect the quality of the weld at the ground level instead of climbing on heights and carrying out inspection of weld joints etc.
Economical :
No cranes, no scaffolding,less man power,quicker.
cost of jacking equipment is recovered r cructing 4-5 tanks .

Tank Erection Top Downwards Cuts Construction Time And Cost Considerably :

New shell plates are constructed at ground level instead of being hauled up to about 30 feet heights or more, saving considerable time required for alignment of plates. The cumulative time required for lifting of men and material to heights is eliminated. Tank construction work remains practically unaffected by rain or snow, since most work is performed under the protection of the tank itself.
Example : Tank of 30 m diameter weighing about 300 tons needs 30 jacks of 12 ton each. Full cost of jacking equipment can be recovered in 4 such tanks.

Model Description 510-35D 2510-50D
Working Capacity (metric tons) 12 25
Testing load (metric tons) 18 37.5
Standard arc distance between jacks (m) 1.80 to 3.0
Max plate height for which jacking equipment can be supplied (m) 2.5 or 3.0 or more
Min plate height that can be used (m) 1.40
Min safe bearing capacity below trestle base plate (N/mm2) 1.45
Plate thickness range (mm) 6 - 40 8 and above
Unitary climb (cm/stroke) 10
Time per stroke (minutes) Approx 5
Working pressure (kg/cm2) 120 135
Retracting system spring hydraulic


Dimensions of some tanks that have been actually erected using jacking equipment are:

Applications :

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