For faster and safer use of tensioners you must first choose a force tensioner. Belt tensioners are usually selected according to the weight, volume and appearance of the cargo. The weight of the cargo is 1 to 2 tons, the length is less than 5 meters and the circumference of the cargo is less than 8 meters. The load tonnage can be selected within 2 tons. One. Because although there is no standard tensioner specification in China, general manufacturers of common tensioners are manufactured according to the European standard: EN12195-2: 2000. tensioner classification standard specifies a safety factor of 2:1 for finished tensioners, while the difference line of synthetic fiber belts of traditional products represents the tension.