Manufacturing large-capacity lifting slings requires not only high-quality materials but also extensive production experience and strict quality control. We are pleased to share that Nanjing D.L.T Sling Co., Ltd. has recently completed the production of an 800-ton, 100-meter endless round sling, which has now entered the final inspection stage before delivery to our customer.
This project demonstrates our capability to manufacture customized heavy-duty lifting slings for demanding industrial applications.
Unlike standard lifting slings, this project required a combination of extremely high lifting capacity and an extra-long working length.
The customer's lifting operation involved handling oversized structures, making both the load capacity and sling length critical factors. Throughout the design and manufacturing process, our engineering team worked closely with the customer to confirm technical specifications and production requirements before manufacturing began.
Producing a round sling of this size requires careful planning at every stage, from raw material preparation to final assembly.
Every production step was carried out under our established quality management procedures.
The sling was manufactured using high-strength polyester yarn and assembled by experienced technicians. Throughout production, attention was paid to maintaining consistent tension, accurate dimensions, and uniform construction across the full 100-meter length.
After assembly, the protective outer sleeve was carefully fitted to ensure the internal load-bearing yarn remained fully protected during handling and lifting operations.
Before shipment, the completed sling underwent a series of inspections to verify that it met the customer's specifications.
The inspection process included:
Each stage was completed according to our internal quality procedures to ensure the product meets the required manufacturing standards.
Large-capacity round slings are widely used in industries where oversized and extremely heavy components must be lifted safely and efficiently.
Typical applications include:
As industrial projects continue to increase in size, the demand for customized heavy lifting solutions is also growing.

At Nanjing D.L.T Sling Co., Ltd., we specialize in manufacturing high-performance synthetic lifting slings for customers around the world.
Our product range includes:
Whether customers require standard lifting slings or highly customized products with special capacities and lengths, our engineering and production teams work together to deliver reliable lifting solutions tailored to individual project requirements.