Specification 1Packing speed:1 3bags/min 2Accuracy:±0.4% 0.6% 3Weighing range: 5 10kg 10 25kg 25 50kg 4.Air pressure: 0. 5 0.7Mpa 5.Power supply: 380V 50Hz 6.Power:5.5KW 7.Bulk density: 0.04-0.5 T/m3 Product feature: Double-screw packing machine is applicant to ultramicro fine powder, nanometer class light calcium carbonate, white and black carbon, and Graphite such kind of power and granular materials need to be handled specially.