Hongruntong Marine Load Testing Water Bags are engineered specifically for the unique operational rhythms and spatial constraints of modern shipbuilding and ship repair facilities. These water bags are manufactured from a robust PVC-coated polyester fabric composite selected for exceptional resistance to incidental contact with steel weld spatter, grinding sparks, and sharp edges that characterize the shipyard environment.
The standard capacity range spans from compact 2-tonne units suitable for jib crane and monorail testing to 110-tonne configurations capable of proof loading the massive goliath gantry cranes that dominate major shipbuilding centers.
A major shipbuilding group in East Asia commissioned a new 1,200-tonne capacity goliath gantry crane. The commissioning protocol required a proof load test at 125 percent of rated capacity, representing a total suspended test load of 1,500 tonnes.
Hongruntong Marine provided a solution using fifteen 100-tonne capacity water bags deployed in a purpose-designed spreader frame configuration. The total fill time for the complete 1,500-tonne test load was 4 hours and 20 minutes, representing a fill rate of approximately 345 tonnes per hour.
The load test was completed successfully under the witness of surveyors from two classification societies. The total project cost for the water bag solution was less than forty percent of the estimated cost for solid weight alternatives.
| Name | Load Testing Water Bags |
|---|---|
| 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 |
|---|---|---|---|---|---|---|
| HM-1T | 1,000 kg 2,204 lbs |
1,000 L / 1 m³ 264 USG |
2.52 m 8.27 ft |
2.23 m 7.33 ft |
1.39 m 4.56 ft |
36 kg 80 lbs |
| HM-2T | 2,000 kg 4,409 lbs |
2,000 L / 2 m³ 528 USG |
2.87 m 9.41 ft |
2.6 m 8.5 ft |
1.65 m 5.43 ft |
41 kg 90 lbs |
| HM-3T | 3,000 kg 6,613 lbs |
3,000 L / 3 m³ 792 USG |
3.38 m 11.11 ft |
2.97 m 9.75 ft |
1.82 m 6.0 ft |
50 kg 110 lbs |
| HM-4T | 4,000 kg 8,818 lbs |
4,000 L / 4 m³ 1,056 USG |
3.41 m 11.22 ft |
3.07 m 10.1 ft |
1.88 m 6.16 ft |
64 kg 141 lbs |
| HM-5T | 5,000 kg 11,023 lbs |
5,000 L / 5 m³ 1,320 USG |
4.14 m 13.60 ft |
3.52 m 11.58 ft |
2.13 m 7.0 ft |
80 kg 176 lbs |
| HM-6T | 6,000 kg 13,227 lbs |
6,000 L / 6 m³ 1,585 USG |
4.39 m 14.41 ft |
3.91 m 12.83 ft |
2.28 m 7.48 ft |
86 kg 189 lbs |
| HM-8T | 8,000 kg 17,636 lbs |
8,000 L / 8 m³ 2,113 USG |
4.54 m 14.91 ft |
3.93 m 12.91 ft |
2.52 m 8.27 ft |
104 kg 230 lbs |
| HM-10T | 10,000 kg 22,046 lbs |
10,000 L / 10 m³ 2,641 USG |
5.18 m 17.0 ft |
4.49 m 14.75 ft |
2.70 m 8.90 ft |
130 kg 286 lbs |
| HM-12.5T | 12,500 kg 27,558 lbs |
12,500 L / 12.5 m³ 3,302 USG |
5.43 m 17.91 ft |
4.62 m 15.16 ft |
2.86 m 9.39 ft |
154 kg 340 lbs |
| HM-15T | 15,000 kg 33,069 lbs |
15,000 L / 15 m³ 3,962 USG |
6.24 m 20.50 ft |
5.48 m 18.00 ft |
2.95 m 9.70 ft |
159 kg 350 lbs |
| HM-20T | 20,000 kg 44,100 lbs |
20,000 L / 20 m³ 5,283 USG |
6.78 m 22.25 ft |
6.04 m 19.83 ft |
3.42 m 11.25 ft |
224 kg 492 lbs |
| HM-25T | 25,000 kg 55,115 lbs |
25,000 L / 25 m³ 6,604 USG |
7.51 m 24.66 ft |
6.40 m 21.0 ft |
3.75 m 12.33 ft |
315 kg 695 lbs |
| HM-35T | 35,000 kg 77,161 lbs |
35,000 L / 35 m³ 9,246 USG |
8.07 m 26.50 ft |
7.11 m 23.33 ft |
3.91 m 12.83 ft |
417 kg 920 lbs |
| HM-40T | 40,000 kg 88,184 lbs |
40,000 L / 40 m³ 10,566 USG |
8.71 m 28.58 ft |
7.72 m 25.33 ft |
4.07 m 13.36 ft |
440 kg 970 lbs |
| HM-50T | 50,000 kg 110,231 lbs |
50,000 L / 50 m³ 13,208 USG |
8.99 m 29.50 ft |
7.77 m 25.50 ft |
4.56 m 14.96 ft |
544 kg 1200 lbs |
| HM-100T | 100,000 kg 220,462 lbs |
100,000 L / 100 m³ 26,420 USG |
11.27 m 37.00 ft |
10.00 m 32.9 ft |
5.65 m 18.56 ft |
952 kg 2100 lbs |
Hongruntong Marine manufactures standard water bags with capacities up to 110 tonnes as single units. For applications requiring higher individual bag capacities, our engineering department can develop custom configurations with capacities approaching 200 tonnes. For the largest gantry crane tests, it is typically more practical to deploy multiple 50-tonne or 100-tonne bags in a spreader frame arrangement.
Water bags should be thoroughly dried prior to folding, stored in supplied protective shipping bags, and placed in locations protected from direct sunlight and ozone sources. Purpose-designed storage containers including lockable steel boxes are available to provide additional protection against incidental contact, weather exposure, and unauthorized access.
Yes, water bags are fully compatible with conventional solid test weights and can be integrated into hybrid test arrangements. The rigging must be engineered to ensure proper load distribution and that the combined center of gravity falls within the crane's allowable envelope. Engineering support for hybrid arrangements is available on request.
Minor damage not penetrating full fabric thickness or intersecting welded seams can be repaired in the field using supplied repair kits. The procedure involves cleaning, applying cold-vulcanizing adhesive, and placing a fabric patch extending 50 mm beyond damage perimeter. Damage intersecting seams, involving lifting eyes, or exceeding 100 mm should be referred for factory evaluation and repair.
The bags are constructed from inherently non-sparking materials that don't accumulate static charge, but they are not certified to specific hazardous area classification standards. For tanker applications, use must be evaluated within the shipyard's hot work permit system and gas-free certification status. The shipyard's safety department should ensure all test arrangement aspects comply with applicable safe work procedures.
