Flexible medium-sized bulk containers (FIBCs), bulk bags or big bags are industrial containers made of flexible fabrics, which are designed to store and transport dry, flowable products such as sand, fertilizer and plastic particles.
FIBCs are usually made of thick woven polyethylene or polypropylene, whether coated or uncoated, and are usually about 110cm or 45-48 inches in diameter, and heights from 100cm to 200cm (39 to 79 inches) Not waiting. Its capacity is usually about 1,000 kg or 2,000 lbs, but larger units can store more. A bulk bag designed to transport one ton of material itself weighs only 5-7 pounds.
Transport and load on pallets or lift from the ring. The bag is made of one, two or four lifting rings. The single-loop bag is suitable for single-person operation, as there is no need for a second person to put the loop on the loader hook. It can be easily emptied through a special opening at the bottom (such as a discharge spout), which has a variety of options, or just open it.
Although there are disagreements on the exact location where FIBCs were originally manufactured and used, it is certain that they have been used for various packaging purposes since the 1940s. These pioneers of FIBCs as we know them today are made of PVC rubber and are commonly used in the rubber industry to transport carbon black for use as a reinforcing agent in various rubber products.
By the 1960s, with the development of polypropylene and the advancement of weaving, the bulk bags we know today came into being and were quickly adopted by various petroleum and chemical companies to store and transport powder and granular products.
It was during the oil crisis in the mid-1970s that FIBC really succeeded in transporting large amounts of cement from all over Europe to the Middle East to promote the rapid expansion of oil-producing countries. At its highest point, more than 50,000 metric tons of cement are delivered every week to meet huge construction plans.
Modern FIBC transports more than 1/4 billion tons of products each year, which are used to process, store and transport grains, powdered chemicals and flour and other animal feeds. With a capacity of up to 3 cubic meters and a load capacity ranging from 1/2 ton to 2 ton, FIBCs are extremely cost-effective, easy to recycle, and are ideal for almost any free-flowing granules, powders, granules or flakes. FIBCs are also being developed to contain and filter fluid products.