High performance fiber ropes have flexibility and strength

Ropes are soft to the touch and pliable when compressed, yet exceptionally tough and strong under tension.

 

Ropes are soft to the touch and pliable when compressed, yet exceptionally tough and strong under tension.

 

Modern heavy-duty cranes are XIONGQIAN made from synthetic materials rather than wire rope, which has been the standard alternative to natural fibers for more than a century of lifting and towing applications.

 

 

The challenge in lifting a variety of objects such as wind turbine transitions, blades and towers, oil and gas structures for subsea deployment or large mining and drilling equipment lies in the choice of ropes, materials and components.

There is never a one-size-fits-all choice, so when expensive or irreplaceable items are lifted, the success of high-risk projects depends on making the right choices. These decisions become even more difficult when the object has an irregular shape or rough surface.

 

Strength characteristics remain the primary consideration when selecting the right rope for a lifting sling assembly; however, lightweight and low-stretch products also offer advantages to teams involved in handling equipment.

 

This is why expert advice is often required to ensure certainty. Yitongxing provides customers with the lifting expertise to accurately calculate weight and strength limits and provide sound advice to customers.

 

When a synthetic rope is bent around a pulley or pin, it normally experiences a loss of strength due to the bend. A rope is only subjected to axial stress when pulled straight, but when bent around an object, the total stress becomes a function of the combination of tension and bending.

The effect of this bending depends on the overall sling configuration. Expertise is required in the planning phase of any elevator. This includes the ability to calculate the D:d ratio, which refers to the diameter of the sling (d) and the diameter of the object it is attached to (D).

For wide, heavy equipment, such as crane decks, mining components or large diameter pipelines, a "basket" sling may be the right solution. A basket means that the slings will share the load between multiple connection points, which requires additional calculations.

 

 

In these projects, high-performance fibers can be used as a direct replacement for steel. Benefits include light weight, easy handling, water and chemical resistant materials. When it comes to the effects of impact loading, the compression points on synthetic materials can be sorted out, whereas steel versions are permanently deformed once bent and compressed, affecting their future use. The fiber model is also compatible with all steel-related rigging hardware, which is different from more traditional ropes, which are typically larger in diameter.

 

Ropes made from synthetic materials serve the same purpose as traditional fiber or steel, but it is now better understood that they can do much more than the obvious. They are versatile products that can relieve the manpower and stress of high-risk, heavy lifts. Not only that, they are increasingly proving to be superior alternatives in comprehensive testing and practice. That's why it's worth exploring high-performance ropes more closely.