Category: Slackline KnowHow

On the slackline KnowHow blog section you will find studies and posts regarding equipment. Our purpose here is to share our understanding of the factors that may or may not compromise gear reliability and how some types of equipment are best suited for each function.

Forces in slacklining, on ratchet lines

The forces in slacklining that occur during the practise are composed of the preload force and the weight of the slackliner. This can be both static and dynamic. It is not possible to determine the forces without measuring device exactly – but one can calculate the forces in static slacklining with a formula approximately. Here […]

CONTINUE READING Forces in slacklining, on ratchet lines 3 min read

Oval Carabiner vs. Pear Shaped Carabiner: wich one performs best on slacklining

Because slacklining is still a young sport and there are still few materials and standards that are geared to the slackline application, material from other applications (from sports and industrial climbing to industrial applications) is used. In this article, the suitability for slacklining, of the Pear Shape and oval carabiner is put to the test. […]

CONTINUE READING Oval Carabiner vs. Pear Shaped Carabiner: wich one performs best on slacklining 2 min read

Forces in Highlining

Many people who see a highliner on a highline for the first time, think that the forces in highlining are very high, especially when falling (leash fall). Since the slack (“sag”) in highlining is not as limiting as in longlining over ground, most highlines are much less biased and this leads to lower forces than […]

CONTINUE READING Forces in Highlining 2 min read

International Slackline Association test: Used pinkTube breaking strength

A piece of pinkTube has been permanently rigged and sessioned for 6-8 months. It has seen between 3000 – 5000 leashfalls and was exposed to the sun for about 2 hours per day. It was located in a forest in France, near streaming water with high humidity. This piece of webbing had its breaking strenght […]

CONTINUE READING International Slackline Association test: Used pinkTube breaking strength 3 min read

Study of webbing breaking strength reduction caused by UV-light exposure

Slacktivity has conducted a UV-light test in a permanent midline that was up for 7 months over summer. 5 different webbings were used in the setup. The tested webbings were not in the hade of trees but in full exposure to sun light. In avarage the webbing breaking strength decreased by 8kN in the mainline […]

CONTINUE READING Study of webbing breaking strength reduction caused by UV-light exposure 16 min read

International Slackline Association – ISA, certified slackline gear

The International Slackline Association – ISA has started to certify highline gear. Some people are wondering what the advantage of a certification might be. But before answering, let us ask you a question: Would you buy climbing gear that is not certified? Most climbers would not. But let us start explaining how gear can become […]

CONTINUE READING International Slackline Association – ISA, certified slackline gear 7 min read

How do webbing knots influence the breaking strength?

Introduction Since a few years the low-tension lines have become more of a standard. This new style brings new ways of rigging, one of these is involves webbing knots in the back up. But what does a knot in webbing actually hold? How do the webbing knots influence the breaking strength of the slackline? As […]

CONTINUE READING How do webbing knots influence the breaking strength? 31 min read
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