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Water Weight Bags High Capacity Leak Proof Rapid Filling Lightweight Durable

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Water Weight Bags High Capacity Leak Proof Rapid Filling Lightweight Durable
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Features
Specifications
Features: Durability, Adjustable Weight
Name: Crane Load Test Water Bags
Thickness: 0.4mm-2.5mm, Or As Request
Loadcell: 10-150 Tons
Reinforcement: Nylon Fabric
Material: Top Notch PVC
Layers: 1-6Ply, Or As Request
Capacity: 1T - 150T
Color: Black, Yellow, Orange, Or As Request
Application: Structural Load Testing, Proof Load Testing
Highlight:

high capacity water weight bags

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leak proof crane test bags

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lightweight durable water bags
Basic Infomation
Place of Origin: China
Brand Name: Hongruntong Marine
Certification: ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS
Model Number: HM-CLTWB25
Payment & Shipping Terms
Packaging Details: Wooden Pallets, Wooden Box
Delivery Time: 5-6 Work Days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 3150 Pcs Per Month
Product Description
Water Weight Bags High Capacity Leak Proof Rapid Filling Lightweight Durable
Product Overview

Crane Load Test Water Bags are engineered flexible load testing devices designed for proof-load testing of cranes, davits, winches, and lifting structures in marine and industrial environments. Manufactured from high-strength PVC-coated woven fabric with reinforced seams, these water bags provide a safe, controllable alternative to traditional solid test weights.

Typical capacities range from 1 ton to over 100 tons depending on project requirements. The lightweight empty structure allows easy transportation and deployment, while the filling system enables gradual loading for precise calibration. UV resistance, abrasion protection, and excellent tensile strength ensure reliable performance even in harsh offshore or shipyard conditions.

These water bags significantly reduce logistics costs, enhance operational safety, and simplify load test procedures for shipyards, ports, offshore platforms, and heavy industry facilities.

Case Study - Offshore Supply Vessel Crane Test

A Southeast Asian offshore service company required annual certification of a 50-ton deck crane installed on an offshore supply vessel. Transporting solid test weights offshore was costly and logistically complex.

Hongruntong Marine supplied modular water load bags with calibrated flow meters. The bags were filled directly using seawater, allowing controlled incremental loading. The entire test was completed within one day, reducing downtime by 40%. Operators reported excellent handling, stable load behavior, and easy draining. The system has since become their standard annual testing solution.

Specifications
Name Crane Load Test 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
Technical Specifications Table
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
  • High Strength Structural Fabric: Industrial-grade polyester base fabric coated with marine-grade PVC elastomer ensures exceptional tear resistance, minimal elongation under load, and strong fatigue durability. Reinforced webbing belts distribute stresses evenly.
  • Controlled Progressive Loading Capability: Integrated filling valves, calibrated flow meters, and pressure relief systems allow precise control of load increments, improving testing accuracy and reducing shock loading risks.
  • Abrasion and Environmental Resistance: Outer layer incorporates UV inhibitors and abrasion-resistant coating. Maintains flexibility in low temperatures and resists degradation from saltwater, oils, and sunlight exposure.
  • Operational Convenience and Storage Efficiency: Empty bags are foldable and lightweight, requiring minimal storage space. Quick-connect hoses and standardized shackles simplify installation.
Applications
  • Shipyard Crane Certification: Commissioning tests of gantry cranes, jib cranes, and floating cranes during ship construction or repair.
  • Offshore Platform Maintenance: Periodic proof load testing of platform cranes without requiring heavy transport vessels for solid weights.
  • Port Equipment Verification: Scheduled inspection of quay cranes, davits, and lifting beams to meet regulatory compliance.
Why Choose Hongruntong Marine
  • Extensive Marine Engineering Experience: Years of specialization in marine lifting test equipment with understanding of offshore safety standards and operational challenges.
  • Strict Quality Manufacturing System: All water bags produced under controlled quality systems using certified raw materials. Every bag undergoes pressure testing, dimensional inspection, and load verification.
  • Custom Engineering Capability: Tailored capacities, connection designs, manifold systems, and instrumentation packages to suit specific crane configurations.
  • Responsive Technical Support: Global service team offers fast response and continuous technical assistance for installation guidance and maintenance advice.
Frequently Asked Questions
What capacity ranges are available?
Standard bags range from 1T to 100T, with custom designs exceeding this range.
Can seawater be used for filling?
Yes. The material is corrosion resistant and suitable for seawater applications.
Are the bags reusable?
Yes. With proper handling and storage, they can be used for many test cycles.
Do you provide certification?
Yes, proof test certificates and material traceability documentation are supplied.
How are the bags transported?
They are folded compactly and shipped in protective packaging.
Product Gallery
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Contact Person : Mr. William Lau
Tel : +8618910539783
Fax : 86-10-89461910
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+8618910539783
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