... gum, starch, dry mortars etc.area. 2suitable for valve bag The screw packer is designed for packaging a wide ... 1.Specification: DCS-FJDA, DCS-FJDB, DCS-FJDC 2.Packing speed: 2~4bags/min3.Accuracy: ±0.2% 4 ... Single-screw version is the typical model of our valve bag packing machine, it has been applied widely in titanium dioxide, ... to primary position and start the next packing. valve bag filling machine