The standard and most common type of loops. In each corner of the big bag is one loop. The bag can be lifted from the top by a forklift that has to catch all four loops. For the manipulation of a 4-loop bag, you generally need a forklift driver and a manipulator that helps a fork to pass through a loop. Loop height starting from the top of the bag (free loop height) depends on customer requirements. Most commonly, the free part of the loop is 25cm or 30cm but can also be 60cm so all four loops can be catched with one single hook.
Loops are mainly made of PP Raffia material, but can also be made of PP multifilament.
Cross-corner big bags have loops that are sewn to eight points in opposite corners so that the loops have a larger opening. Certain users claim that it was easier to manipulate with this kind of loops. Cross-corner loops require that bags are made from circular fabric. Cross-corner bags can be combined with all big bag types.
One and two loops are simpler and more economical than 4 loops on the corners and are mainly used for lifting bulk bags with smaller capacity (from 500 to 1000 kg). Loops can be made in different colors for easier identification of products. One or two loops for lifting are mainly used for packing fertilizers, as it is the easiest was for agricultural users to manipulate with one loop.
A special type of loops made from bag body fabric. Tunnels that are practical and easy to use by a forklift when transporting FIBC.
Stevedore loops are special, supporting loops, designed for special handling of bags. While a bag with four loops must be lift at four points, with stevedore loops it is possible to lift only at two or one point. Stevedore loops can be designed in various ways:
Loops can be added to the bag bottom in order to enable easier emptying of bags. This is mainly used when the bag is emptied by upsetting the big bag. This is used in the construction industry and in the mining industry.
For Type C bags there is a special material for loops that has a carbon strip in itself. Type C loops are usually yellow or white. Visit Type C website for more information.
Certain specific bags require additional belts around the bag called perimeter belts. Bulk bags with large capacity and/or with bottom loops, the perimeter tape is located on the bag bottom, while with the UN bags it is placed on top of the bag.