Net weight packing machine with a Hopper scale for small weighing range (1 - 5 Kg). The W-PW-S-20 model has a production rate of 100 to 180 bags per hour and a weighing range of 1 to 5 kg, depending on the material and the user. The buffer tank's volume is 50 liters. It is equipped with a PLC controller and inverter and has a 7 ”touch screen.