QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
| Payment Terms | L/C,T/T |
| Name | Crane Test Water Bags For Load Testing |
| Maximum Capacity | 125 tons |
| Production Standard | LEEA 051 |
| Color | Yellow |
| Type Certificate | TUV and BV |
| Production Time | 1~3 weeks |
| Common Size | 50t and 110ton |
| Packaging Details | Pallet or Plywooden Box |
| Delivery Time | 2~3 weeks |
| Supply Ability | 10pcs/per week |
| Brand Name | DOOWIN MARINE |
| Model Number | PLB |
| Certification | CCS, BV, LR, TUV |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T | Name | Crane Test Water Bags For Load Testing |
| Maximum Capacity | 125 tons | Production Standard | LEEA 051 |
| Color | Yellow | Type Certificate | TUV and BV |
| Production Time | 1~3 weeks | Common Size | 50t and 110ton |
| Packaging Details | Pallet or Plywooden Box | Delivery Time | 2~3 weeks |
| Supply Ability | 10pcs/per week | Brand Name | DOOWIN MARINE |
| Model Number | PLB | Certification | CCS, BV, LR, TUV |
| Place of Origin | China | ||
| High Light | 50ton Crane Test Water Bags ，110ton Crane Test Water Bags ，Crane Test Water Bags For Load Testing | ||
DOOWIN is a trusted provider of high-precision crane test water bags, engineered for safe and efficient load testing of cranes, davits, hoists, and other lifting equipment. These water-filled bags offer a lightweight, portable, and cost-effective alternative to traditional solid weights, making them indispensable in industries like marine, construction, and energy.
Key Features & Advantages
Made from 100% high-tenacity PVC-coated polyester fabric, ensuring non-destructive testing with a minimum 7:1 safety factor.
Manufactured in compliance with ISO 9001:2015 standards (Certificate No. FM 787453).
2. Portability & Efficiency
Foldable design for easy storage and transport, reducing freight and labor costs.
Scalable clusters (up to 300 tonnes using multiple bags) for large-scale testing.
3. Comprehensive Setup
Includes safety shackles, master links, fluid transfer fittings, and valves for seamless operation.
Low Headroom (LH) series available for space-constrained environments.
4. Versatile Applications
Used for testing cranes, winches, gangways, elevators, offshore rigs, and more.
Doubles as emergency fluid storage when needed.
Technical Specifications
Capacity Range: 1 to 125 metric tonnes (1,000–125,000 kg).
| Model | Capacity | Max.Diameter | Filled Height | Gross Weight |
|---|---|---|---|---|
| PLB-1T | 1,000 KG | 1.3m | 2.2m | 50kg |
| PLB-2T | 2,000 KG | 1.5m | 2.9m | 65kg |
| PLB-3T | 3,000 KG | 1.8m | 2.8m | 100kg |
| PLB-5T | 5,000 KG | 2.2m | 3.7m | 130kg |
| PLB-6T | 6,000 KG | 2.3m | 3.8m | 150kg |
| PLB-8T | 8,000 KG | 2.4m | 3.9m | 160kg |
| PLB-10T | 10,000 KG | 2.7m | 4.8m | 180kg |
| PLB-12.5T | 12,500 KG | 2.9m | 4.9m | 220kg |
| PLB-15T | 15,000 KG | 3.1m | 5.5m | 240kg |
| PLB-20T | 20,000 KG | 3.4m | 5.5m | 300kg |
| PLB-25T | 25,000 KG | 3.7m | 5.7m | 330kg |
| PLB-30T | 30,000 KG | 3.9m | 6.3m | 360kg |
| PLB-35T | 35,000 KG | 4.2m | 6.5m | 420kg |
| PLB-40T | 40,000 KG | 4.3m | 7.5m | 450kg |
| PLB-50T | 50,000 KG | 4.8m | 7.5m | 560kg |
| PLB-55T | 55,000 KG | 4.9m | 7.8m | 600kg |
| PLB-75T | 75,000 KG | 5.3m | 8.8m | 820kg |
| PLB-100T | 100,000 KG | 5.7m | 8.9m | 1050kg |
| PLB-110T | 110,000 KG | 5.8m | 9.0m | 1100kg |
Packaging Options:
PVC carry bag and Marine-grade plywood box
Why Choose DOOWIN?
The Standard Assembly of Crane Test Water Bags
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
3000000-5000000
Employee Number:
60~80
Ecer Certification：
Verified Supplier
Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb... Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb...
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