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Tank Jacking Equipment

Tanks were previously built using conventional methods or using heavy-lift cranes. The shell courses were erected in the order of the bottom course first, followed by the remaining courses. This method involved working at increasing heights. Also, this method had other constraints like safety and quality considerations.

However, with a greater emphasis on safety on construction sites and higher quality control, the conventional tank erection method did not effectively meet the standards. This gave rise to an entirely new concept of erecting the tanks whereby the erection work was restricted close to ground level and the part completed tank was pushed up. The bottom course was constructed last.

This method of construction is called as “Jacking-Up” method. In this method, the tank is erected with the help of Hydraulic jacks (equipped with the Tank erection equipment) connected to a Power source.
Hydraulic Tank Jacking Equipment in Use

Sai Krishna Engineering Company's Tank Jacking Equipment are used for:

  • Construction of field-erected storage tanks / API Tanks.
  • Construction of Absorber Tanks for the FGD projects.
  • Increasing the capacity of the Tank by adding shell rings or courses.
  • Tank cutting / Dismantling of old tanks.
  • Repair/replacement of the bottom plate of the Tank.
Hydraulic tank jacking system

Tank Jacking Methodology

  • Firstly, the foundation of the tank is prepared
  • Once the foundation is prepared, the bottom plates are laid out and welded.
  • The circumference of the tank is marked out on the bottom.
  • Then, the topmost shell course is erected, and the plates are welded vertically
  • The roof is then made ready above the topmost shell.
  • The base plates are welded to the bottom plate about 130mm away from the Shell ring internally
  • Lifting trestles are then connected to the base plates, and hydraulic jacks with other components are equipped.
  • The maximum arc distance between two Jacking units shall not exceed 3 - 3.5 meters.
  • The number and size (capacity) of jacks are determined by the weight to be lifted and the height of the tank, wind speed, etc.
  • A lifting lug and a fend-off lug are welded temporarily to the shell plates in front of each jacking unit so that the lifting arm and sliding chair can lift the tank.
  • The jacks are interconnected through a system of hydraulic pressure hoses.
  • The hydraulic jacks are connected to a Hydraulic powerpack unit that allows for synchronized lifting.
Hydraulic tank jacking system
  • After lifting the sub-assembly to a desired height, a new course of shell is erected. Then the first shell is seated and welded to the next shell.
  • The lugs are now removed from the top shell plate and are welded to the second shell plate as done previously.
  • The jacks are then lowered manually to the original lifting position for lifting the next shell.
  • This procedure is continued for erecting additional courses until the full height of the tank has been reached.
  • Once all the shell courses are erected, the tank is lowered to the last shell course. The shell and the bottom plate are welded together.
  • The jacking equipment is then dismantled and removed.

Why Choose
Sai Krishna Engineering Co's Tank Jacking System :

Efficient Tank Erection: Our jacking systems are designed to lift and position all Above-ground Storage tanks during construction. They provide a safe and efficient method for erecting tanks, reducing the time and labor required compared to traditional methods such as cranes. Our hydraulic jacking system precisely lifts the tank to the desired height, ensuring accuracy and minimizing the risk of errors during installation.

Increased Safety: Our Tank jacking equipment enhances safety during tank construction and maintenance. Using hydraulic power eliminates the need for manual lifting or cranes. The controlled lifting mechanism of the hydraulic system reduces the likelihood of accidents, ensuring a safer working environment. The highest safety is achieved as all the work is carried out at the ground level.

Adaptability: Hydraulic tank jacking systems are highly versatile and adaptable to various tank sizes and configurations.

Cost Savings: While hydraulic tank jacking systems require an initial investment, they can result in significant cost savings in the long run. The faster installation and reduced labor requirements lead to lower construction costs. Additionally, the flexibility of hydraulic jacking systems allows for easy dismantling and reassembly of tanks, making them suitable for tank maintenance, repairs, or relocation without requiring extensive resources.

Environmental Considerations: It helps in minimizing environmental impact by reducing the need for extensive dismantling and construction, as well as decreasing the use of heavy machinery.

Improved Project Planning: It allows for better project planning and scheduling, as tasks can be completed more efficiently within a predetermined timeframe.

Tank Repair and Maintenance: Tanks may require maintenance, repairs, or retrofitting over time. Our Tank jacking systems provide a safe and efficient way to lift tanks off their foundations, allowing workers to access the tank’s bottom or shell for welding, corrosion repair, coating application, or other maintenance tasks.

Bottom Replacement: In a case where a tank’s bottom is corroded or has suffered damage, our tank jacking system can be used to lift the tank so that the old bottom can be removed and a new one can be installed.
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We are one of the most experienced organizations manu facturing Hydraulic jacking equipment for the erection/ Construction of Above-ground Storage tanks and Slip form Construction Projects.
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