the single strength of the grip strap for a bag with a maximum safe loading of 1000 [kg] is 1250 [kg]
grip tape made of multifilament consists of 123 strands of polypropylene silk with a strength of 2000DN each, where 1[DN] is 7[g].
Multifilament tape is more resistant to tearing than raffia (at similar weights), but less resistant to cutting
the thread that connects the pouch and handles is twisted fibrillated ribbon, this multifilament can burn out in the needle when sewing, so twisted ribbon is used
fibrillation of the ribbon involves cutting it lengthwise so that when it is twisted and under high tension there is no internal tension that would reduce its strength
Sewing machine in some cases stitches 2.5 cm thick polypropylene
one machine connecting the body per day can sew a distance of 1700 meters of stitch alone
each seam in the body of the bag is double, the first is responsible for the strength of the connection and the second for the security of the goods in the bag
the bag does not always have to be airtight, with some goods it is better if there is a certain controlled margin - goods with hot backfill
More than 6 tons of polypropylene in various forms are processed daily
all cutting is done hot
The designation SF - safety factor means what maximum overloads the bag should withstand, and so for a bag SWL 1000 [kg] and SF: 5:1 the limit strength is 5000 [kg].