Load Testing Water Bags Eco Friendly Ballast UV Resistant Fabric High Volume Single Lift
Product Overview
Hongruntong Marine Load Testing Water Bags represent the pinnacle of engineered lifting safety for port infrastructure and heavy industry applications. These high-capacity water weights are manufactured from premium-grade PVC-coated polyester fabric, selected specifically for its exceptional tear strength, dimensional stability under load, and long-term resistance to environmental degradation.
Each water bag is constructed utilizing high-frequency welding technology to produce seams that exceed the breaking strength of the base fabric itself, ensuring that the structural integrity of the lifting vessel is never compromised during critical proof load testing procedures. The standard product line encompasses capacities ranging from 1 tonne to 110 tonnes, with custom configurations available to meet specific crane geometries, davit arm lengths, or restricted workspace envelopes.
Case Study: Ship-to-Shore Gantry Crane Annual Certification - Port of Rotterdam
A major container terminal operator at the Port of Rotterdam ECT Delta Terminal faced recurring logistical challenges in completing the mandatory annual load testing program for their fleet of twelve post-Panamax ship-to-shore gantry cranes.
Hongruntong Marine supplied a matched set of eight 50-tonne capacity water bags specifically configured with extended fill hoses and quick-connect camlock fittings compatible with the terminal's existing fire main water supply. The test protocol was revised to position the empty bags on the quayside spreader bar using the crane's own hoist mechanism, eliminating the requirement for any external lifting equipment.
The terminal operator documented a reduction in total crane downtime from fourteen hours to just under five hours per unit, representing an annualized operational cost saving of €187,000 across the twelve-crane fleet.
Technical Specifications
Application: Proof Load Testing, Offshore Load Testing, Structural Load Testing, Ship Load Testing, Industrial Equipment Testing, Research and Development.
Material Composition: 100% POLYVINYL CHLORIDE
Safety Compliance: 7P Phthalate Free (Includes all Phthalates Listed in CAL Prop 65, CPSIA and REACH), BPA Free / Tris Free / Formaldehyde Free, Does not Contain Conflict Minerals
Backing Material: 1.8/2.0 MM X 1.55M, Thickness Produced as Per your Request
Weight: 37.1 oz square yard/ 1450 +- 50 GSM
Special Features: UV Resistant
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 |
Key Features
Superior Fabric Engineering for Demanding Duty Cycles
The load-bearing envelope is constructed from high-tenacity polyester base fabric with dual-coating PVC compound for redundant environmental protection. Independent laboratory testing confirms minimum warp-direction tensile strength of 4,200 N per 50 mm width.
High-Frequency Welded Seam Integrity
Exclusive use of high-frequency dielectric welding technology creates monolithic joints with the same mechanical properties as parent material. Each seam is proof tested at 150% of rated head pressure.
Reinforced Lifting Architecture with Redundant Load Paths
Multi-layer laminate assembly lifting eyes with high-modulus polyester fiber construction and minimum breaking strength of 12,000 kg per individual lifting point.
Low-Profile Fill and Drain Manifold System
Large-diameter fill ports with quarter-turn camlock fittings compatible with standard fire hose couplings. All fluid interface fittings fabricated from marine-grade 316 stainless steel.
Applications
Shipyard Crane Certification and Periodic Inspection
Ideal for overhead cranes, gantry cranes, and jib cranes in shipbuilding halls where floor space is limited and movement of solid weights would interfere with construction activities.
Lifeboat and Davit Launching Appliance Testing
Perfect for SOLAS-mandated proof load testing of lifeboat davits and launching appliances, accurately simulating distributed weight of full complement of persons and equipment.
Offshore Platform Crane Maintenance and Recertification
Transportable to offshore locations in collapsed state within standard cargo baskets, fillable using platform's seawater service system for crane testing.
Why Choose Hongruntong Marine
Manufacturing Lineage with Marine Industry Focus
Exclusive focus on flexible containment systems for global maritime sector with engineering staff experienced in requirements of all major classification societies.
Custom Engineering Capability Without Cost Premium
In-house engineering capability for custom bag dimensions, fill port locations, lifting eye configurations, and capacity ratings without non-recurring engineering charges.
Material Traceability and Quality Assurance
Manufacturing under documented QA program meeting ISO 9001:2015 requirements with complete material traceability from textile mill to finished product.
Post Delivery Technical Support and Spare Parts Availability
Technical support hotline staffed by engineers, on-site inspection and recertification services, and immediate spare parts dispatch.
Frequently Asked Questions
1. What is the maximum water temperature that can be safely introduced into a Hongruntong Marine water bag?
Rated for continuous service with water at temperatures up to 60°C. For applications above 60°C, consult our engineering department for high-temperature fabric compound specification.
2. Are Hongruntong Marine water bags suitable for use with fluids other than fresh water?
Compatible with fresh water, seawater, and brackish water. Not recommended for petroleum-based fluids, solvents, strong acids, or strong alkalis.
3. What is the recommended inspection interval and retirement criteria?
Visual inspection prior to each use, documented annual inspection by competent person. Retirement criteria include cuts penetrating >50% fabric thickness, seam separation, or lifting eye damage.
4. What is the procedure for repairing minor damage sustained during field operations?
Field repair kit available for minor punctures and abrasions. Repairs to welded seams or major damage must be referred to Hongruntong Marine for evaluation.
5. How should water bags be stored when not in active service?
Thoroughly drain and air dry completely before folding along original crease pattern. Store in clean, dry environment protected from direct sunlight and ozone sources.
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