          PXD PLASTICS

Established Oct 1995                    Make To Order  Formulas  Examples        Formulas used to culculate the mass of products     Formula for Bags Formula for Sheets Kg = (W + G) x  L x T ÷ 532500 ÷ 1000 x B         where    Kg = Weight of the order W = Width of the bag or tube (mm) G = Width of the gusset (if any) (mm) L = Length of the bag (mm) T = Thickness of bag wand (Microns) B = Number of bags Kg =  W  x  L x T ÷ 1065 x S         where    Kg = Weight of the order W = Width of the sheet (m) L = Length of the sheet (m) T = Thickness of a single wand (Microns) S = Number of sheets Example for Bags Example for Sheets 10000 bags of (400mm + 0) x 600mm x 100 mics = 400 x 600 x 100 ÷ 532500 ÷ 1000 x 10000 = 450.7 Kg Note the minimum thicknes for bags is between 22 to 25 microns (depending on the specific product size) 50 sheets of 3 m x 30 m x 100 mics = 3 x 30 x 100 ÷ 1065 x 50 = 422.5 Kg Note that the width and length dimensions are kept in meters for the purpose of the formula      