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Lifting Water Bag
The soft weighing device, made from PVC or thickened wear-resistant Oxford cloth, is specifically designed to replace traditional solid weights. It focuses on two core needs: "engineering load testing + scenario counterweight" and serves as a new-type weighing solution that balances "accuracy + convenience + cost-effectiveness".
Product Advantages
Precise Scene Matching: Focuses on three core application scenarios: engineering testing (preloading inspection for bridges, gantry cranes, and deck cranes), stage counterweight (anti-toppling for lighting trusses and Layher trusses), and ship weighing (load testing and balance adjustment).
High Flexibility: Offers a capacity range from 500 liters to 80 cubic meters, features a foldable design for easy transportation and storage, and supports custom sizes.
Economic and Reliable: Compared with solid weights, it has lower costs and easier operation, while accurately meeting the load verification needs of hoisting equipment and structures.
Typical Parameters
Parameter Category
Core Specifications
Overall Capacity Range
500 Liters - 80 Cubic Meters
Corresponding Load-Bearing Range
500 Kilograms - 80 Tons (1 Liter of water ≈ 1 Kilogram in weight)
Configuration Options
Single-bladder or multi-bladder combination can be selected based on testing requirements
Small-Capacity Model (Capacity)
500 Liters - 5 Cubic Meters, Application Scenarios: Stage counterweight, small crane testing
Large-Capacity Model (Capacity)
10 - 80 Cubic Meters, Application Scenarios: Bridge preloading, large ship weighing, gantry crane load testing
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Structural Design
The top is equipped with high-strength lifting rings (made of stainless steel, with a load-bearing capacity of more than twice the full weight of the water bag to prevent breakage during hoisting);
The side is provided with 2-4 reinforced handles for easy handling and positioning;
The water inlet has a diameter of 50-100mm (can be connected to ordinary water pipes for rapid water injection), and the water outlet is equipped with a stop valve (facilitating precise control of drainage speed and adjustment of weight);
Some models have a built-in liquid level gauge, through which the water injection volume can be visually checked via the scale, and the current weight can be quickly calculated without additional weighing equipment.
Application Scenarios
Construction engineering (tower crane load testing), port logistics (container crane calibration), bridge construction (temporary balance counterweight), equipment maintenance (heavy equipment support), etc.
Usage Specifications
Before use, it must be fixed firmly; overloading is strictly prohibited, and operators must wear safety equipment.
After use, it should be cleaned, dried and stored; avoid scratches by sharp objects to extend its service life.
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