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.

Drop Test in UK by TUN/NEL

• Certified Safety & Durability: 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).
• 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.
• Comprehensive Setup: Includes safety shackles, master links, fluid transfer fittings, and valves for seamless operation. Low Headroom (LH) series available for space-constrained environments.
• Versatile Applications: Used for testing cranes, winches, gangways, elevators, offshore rigs, and more. Doubles as emergency fluid storage when needed.

Capacity Range: 1 to 125 metric tonnes (1,000-125,000 kg).

Packaging Options: PVC carry bag and Marine-grade plywood box.

• Precision Engineering: Designed and manufactured in China for long-term reliability.
• Global Use: Deployed worldwide for ship-deck cranes, industrial lifts, and offshore platforms.
• Sustainability: Reusable and eco-friendly compared to solid weights.