Water Weight Bag with 1T - 150T Capacity UV Resistant and Reinforced Seams for Industrial Load Testing
Water Weight Bag is a portable hydrostatic proof load system engineered for industrial lifting verification, offshore equipment commissioning, marine structural testing, and temporary load simulation applications. The product is designed to provide a controlled and operationally efficient alternative to traditional steel counterweight systems used during crane certification, davit testing, structural analysis, and heavy equipment inspection procedures.
Hongruntong Marine manufactures Water Weight Bags using reinforced industrial textile composites combined with multi-layer protective coating technology developed for demanding engineering environments. The structural body incorporates distributed tensile webbing assemblies, reinforced lifting interfaces, high-frequency fused seam structures, industrial drainage systems, and abrasion-resistant external surfaces designed to maintain stable mechanical performance during suspended loading operations.
A hydropower infrastructure contractor in Norway initiated a major turbine hall modernization project involving replacement of overhead maintenance cranes and installation of new lifting systems inside an operational hydroelectric facility. Prior to commissioning, all crane systems required certified proof load verification under strict engineering safety regulations.
Hongruntong Marine supplied a customized Water Weight Bag system specifically configured for confined industrial installation conditions. The supplied equipment package included compact modular bags ranging from 5 tons to 80 tons, flexible filling manifolds, reinforced suspension components, low-profile discharge systems, and portable load monitoring instruments designed for restricted indoor operational environments.
The compact structure of the Water Weight Bag system significantly reduced logistical complexity compared with the original steel-weight transportation proposal. Project implementation time was shortened by nearly six days because the bags could be deployed rapidly within confined spaces without requiring heavy material handling equipment.

| Name | Water Weight Bag |
|---|---|
| Application | Proof Load Testing, Offshore Load Testing, Structural Load Testing, Ship Load Testing, Industrial Equipment Testing, Research and Development |
| Content | 100% POLYVINYL CHLORIDE |
| Phthalate | 7P Phthalate Free (Includes all Phthalates Listed in CAL Prop 65, CPSIA and REACH) |
| Backing Material Size | 1.8/2.0 Mm X 1.55m, Thickness Produced As Per Your Request |
| Weight | 37.1 oz square yard/ 1450 +- 50 GSM |
| Special | UV Resistant, 7P Phthalate Free, BPA Free / Tris Free / Formaldehyde Free, Does Not Contain Conflict Minerals |
| Care Instructions | Rinse With Fresh Water And Air Dry. Do Not Store with Seawater and Keep Away From Heat Sources |
| Available sizes | 5000 kg, 8,000 kg, 10,000 kg, 15,000 kg, 20,000 kg, 30,000 kg, 50,000 kg, 100,000 kg. Special Sizes Could be Customized |
| OEM | Supported |
| MODEL | Weight | Volume | Empty Height (Length) | Filled Height (Length) | Max Diam ( ø) | Dry Weight without accessories |
|---|---|---|---|---|---|---|
| kg lbs |
Liters / m3 USG |
m ft |
m ft |
m ft |
kg lbs |
|
| HM-1T | 1,000 2,204 |
1,000 / 1 264 |
2.52 8.27 |
2.23 7.33 |
1.39 4.56 |
36 80 |
| HM-2T | 2,000 4,409 |
2,000 / 2 528 |
2.87 9.41 |
2.6 8.5 |
1.65 5.43 |
41 90 |
| HM-3T | 3,000 6,613 |
3,000 / 3 792 |
3.38 11.11 |
2.97 9.75 |
1.82 6.0 |
50 110 |
| HM-4T | 4,000 8,818 |
4,000 / 4 1,056 |
3.41 11.22 |
3.07 10.1 |
1.88 6.16 |
64 141 |
| HM-5T | 5,000 11,023 |
5,000 / 5 1,320 |
4.14 13.60 |
3.52 11.58 |
2.13 7.0 |
80 176 |
| HM-6T | 6,000 13,227 |
6,000 / 6 1,585 |
4.39 14.41 |
3.91 12.83 |
2.28 7.48 |
86 189 |
| HM-8T | 8,000 17,636 |
8,000 / 8 2,113 |
4.54 14.91 |
3.93 12.91 |
2.52 8.27 |
104 230 |
| HM-10T | 10,000 22,046 |
10,000 / 10 2,641 |
5.18 17.0 |
4.49 14.75 |
2.70 8.90 |
130 286 |
| HM-12.5T | 12,500 27,558 |
12,500/ 12.5 3,302 |
5.43 17.91 |
4.62 15.16 |
2.86 9.39 |
154 340 |
| HM-15T | 15,000 33,069 |
15,000 / 15 3,962 |
6.24 20.50 |
5.48 18.00 |
2.95 9.70 |
159 350 |
| HM-20T | 20,000 44,100 |
20,000 / 20 5,283 |
6.78 22.25 |
6.04 19.83 |
3.42 11.25 |
224 492 |
| HM-25T | 25,000 55,115 |
25,000 / 25 6,604 |
7.51 24.66 |
6.40 21.0 |
3.75 12.33 |
315 695 |
| HM-35T | 35,000 77,161 |
35,000 / 35 9,246 |
8.07 26.50 |
7.11 23.33 |
3.91 12.83 |
417 920 |
| HM-40T | 40,000 88,184 |
40,000 / 40 10,566 |
8.71 28.58 |
7.72 25.33 |
4.07 13.36 |
440 970 |
| HM-50T | 50,000 110,231 |
50,000 / 50 13,208 |
8.99 29.50 |
7.77 25.50 |
4.56 14.96 |
544 1200 |
| HM-100T | 100,000 220,462 |
100,000 / 100 26,420 |
11.27 37.00 |
10.00 32.9 |
5.65 18.56 |
952 2100 |
- Confined-Space Deployment Capability: Engineered for operational flexibility within restricted industrial environments where transportation and handling of conventional steel counterweights may be impractical.
- Hydrostatic Stability Optimization: Internal structural geometry maintains balanced hydrostatic load distribution during filling operations with reinforced webbing assemblies.
- Industrial Valve and Drainage Engineering: Industrial-grade valve assemblies for controlled water management during repeated operational cycles with rapid water evacuation capability.
- Long-Term Mechanical Fatigue Resistance: Material system and welded structural interfaces engineered to withstand repeated filling, suspension, drainage, folding, and transportation cycles.
- Hydropower and Energy Infrastructure: Commissioning and maintenance testing of overhead cranes, turbine maintenance lifting systems, and structural support equipment.
- Offshore Marine Maintenance: Proof load verification of pedestal cranes, rescue systems, helideck maintenance equipment, and temporary lifting structures.
- Heavy Manufacturing and Industrial Maintenance: Lifting beam verification, overhead crane inspection, temporary structural analysis, and machinery installation support.
- Marine and Industrial Engineering Specialization: Focus on manufacturing offshore lifting products and industrial proof load equipment for demanding operational environments.
- Precision Manufacturing and Structural Testing: Production processes include precision fabric processing, reinforced webbing integration, and operational load testing.
- Application-Specific Product Development: Customized configurations for project operating conditions involving confined spaces, offshore exposure, and specialized infrastructure.
- Reliable International Delivery Capability: Global support through coordinated production scheduling and responsive engineering communication.

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