Worm gear screw jacks are widely used for the construction of Glass Fused Bolted Steel Tanks due to their safety and efficiency in lifting the tanks during the assembly process. Worm gear screw jacks utilize a worm screw that rotates a worm gear, which in turn moves a trapezoidal or ball screw linearly to lift or lower the tank.

* Safety: They are considered safer than hydraulic jacking systems or traditional scaffolding methods, as most construction work is done at ground level, reducing the risk of accidents.
* No Cranes or Scaffolding: Can be built without the need for cranes or adjustable scaffolding, making construction easier and less costly.
* Synchronized Lifting: Multiple screw jacks can be used in a synchronized system to lift the tank uniformly, ensuring stability and preventing tilting.
* Precise Positioning: They offer precise positioning of the tank during installation.
* Self-Locking Feature: Worm gear screw jacks are typically self-locking, meaning they can hold the load in place without requiring additional brakes or locking mechanisms.
* Reduced Oil Spills: Unlike hydraulic systems, they eliminate the potential for oil spills or leakage.
* Improved Quality: Welding and inspection can be done at ground level, ensuring better quality control.
* Faster Erection: Working at ground level speeds up the construction process.
* Cost Savings: Eliminating the need for cranes and scaffolding, along with reduced labor time, leads to overall cost savings.