Tank jacking equipment
Hydraulic Tank Jacking Systems for Storage Tank Construction and Repair
Bygging hydraulic tank jacking equipment is designed for the erection and lifting of large field-erected storage tanks, including tanks constructed to API 650 and API 620 requirements.
In the top-down construction method, a series of hydraulic climbing jacks is installed around the tank circumference. The jacks operate through a common hydraulic system and progressively lift the constructed portion of the tank, creating space at ground level for the erection and welding of each successive shell course.
A typical system consists of hydraulic climbing jacks, trestles and climbing columns, a central hydraulic powerpack, hoses, valves and associated lifting arrangements. The number, capacity and configuration of jacks are selected according to factors such as tank diameter, lifted weight, shell-course height, shell thickness and project methodology.
More Than New Tank Construction
The same basic jacking technology can be configured for a wide range of operations, including:
- Construction of new field-erected storage tanks
- Tank bottom replacement and re-bottoming
- Repairs to tank foundations
- Increasing tank capacity by adding shell courses
- Lifting existing tanks for maintenance
- Dismantling tanks
Designed Around the Construction Method
Bygging offers several jack configurations depending on the job. These include single- and double-acting jacks, lifting-hook models that avoid welding lifting cleats to the shell, and retractable jacks that create sufficient clearance for automatic welding of the internal horizontal joint.
The result is not simply a lifting device, but a jacking system configured around the tank builder's erection and welding sequence.
