brake 12 is engaged causing the auger 10 within the filler tube 9 to be driven by auger motor 13 volumetricly dispensing particulate materials from the hopper 8 into the bag 102 after a predetermined number of revolutions of the auger 10 and as the bag 102 approaches say 90 or 95 percent of its required net weight the speed of the auger 10 is reduced to a substantially slower rpm at about this point in time the jaws 77 and 78 are retracted allowing the lower bag 101 to fall into chute 90 for further handling and leaving bag 102 suspended as shown in fig1 filled with product to a point approaching its predetermined net weight at approximately the same time the cylinders 55 are actuated causing idler bar 53 to move downwardly relieving tension of film 100 and causing reaction unit 48 to pivot so that wheel 49 disengages the film surrounding filler tube 9 thus all that is now suspended from the load cells 22 and 23 are partially filled bag 102 former 26 and a small additional amount of film at this point the load cells 22 and 23 are activated indicating a tare weight of the film former 26 and partially filled bag 102 since the weight of the film and former 26 are known these can be automatically subtracted from the tare weight resulting in the net weight within bag 102 since the auger 10 is now.