Types of Climbing Ropes: Dynamic Ropes and Static Ropes

Climbing ropes are divided into dynamic ropes and static ropes. Today, we will share the differences and characteristics between dynamic and static ropes from two perspectives: rope labeling and elongation. Dynamic and static ropes are two types of ropes essential for outdoor mountaineering, exploration, rock climbing, and caving.

First, let’s look at the difference between dynamic and static ropes from their labels.

Static ropes are marked with EN 1891, followed by the letter A or a circled A symbol, indicating that they are static ropes, as they comply with different standards. Now, let’s take a look at dynamic ropes. Dynamic rope labels are marked with EN 892, followed by a circled number 1 symbol.

Image 1 Static Rope

Next, let’s discuss the difference between static and dynamic ropes in terms of elongation.

Static ropes have very low elongation, which, in simple terms, refers to the rope’s elasticity. For example, when we pull hard on a static rope, we can hardly feel any elasticity. If you try to pull it by hand, it feels almost immovable, indicating its low elongation.

Now, let’s take a look at dynamic ropes. When we pull hard on a dynamic rope, we can clearly feel its elasticity. Generally, the elongation of a static rope is less than 1%. For instance, a 100-meter static rope will have an elongation of no more than 1 meter. In contrast, the elongation of a dynamic rope is 6% to 8%, meaning a 100-meter dynamic rope will have an elongation of about 6 to 8 meters. The distinction between dynamic and static climbing ropes, as outlined above, is based on their elongation properties.

Dynamic ropes are often referred to as "all-purpose ropes" due to their many advantages. Because of their high elongation, they have greater impact resistance compared to static ropes. Dynamic ropes are commonly used as safety ropes in activities like rock climbing and caving. On the other hand, static ropes, known for their abrasion resistance and high-temperature tolerance, are often used as the main descending ropes in rock climbing and caving. Due to their fire-resistant and high-temperature-resistant properties, static ropes are also frequently used as safety ropes for firefighters during rescue operations. It is crucial not to confuse their applications.

For example, in the event of a fall, a dynamic rope can effectively protect the human body. Thanks to its excellent elongation, it can absorb a significant portion of the impact force, preventing injury. However, if a static rope is used as a safety rope, it would not be suitable. Due to its low elongation, the impact force would be fully transmitted to the human body, causing severe harm. Therefore, it is essential to understand this distinction clearly.

In summary, the differences between dynamic and static ropes can be identified in two main ways: first, by their labels, and second, by their elongation, which can be tested by pulling the rope by hand.

Climbing ropes are divided into dynamic and static ropes. That concludes today share the differences and characteristics of dynamic and static ropes. If you are interested, feel free to follow the rope manufacturer——Qingdao Huakai Ocean Technology Co., Ltd. (Hailiya Group), Jiaolong Brand, Century-Old Rope King, Established in 1922.