Screw Scale
This series of product is of high-tech introducing the foreign advanced technology, applicable to powdery, granular materials for quantitative feeding. Widely used in cement, new building materials, metallurgy, medicine, chemicals, food and other industries.
1，    Main features
A．    Fully Sealed system
B．    Filling factors are stable and with homogenizing feeding device to make instantaneous feeding continuous, stable, homogeneous and with high accuracy. Format feeder or sophisticated vibration feeder can also be used as the feeding device
C．    It uses high-impedance, high-sensitivity, high-resolution S-type load cell and has long-term stability, good anti-fatigue properties, high-resolution control display instrument. 
D．    Fully automatic quantitative consecutive feeding and control system

Working principle
  Screw scale is weighing cantilever structured. While material is forwarded in the screw, gravimetric signal and speed signal are sent to the instrument for calculating. PID controlling signal of the instrument can regulate the feeding rate in order to reach the flow requirements.
  All-sealed structure and its unique fulcrum structure can make high accuracy and good sealed performance while working on high granularity.

Technical features:
1, Output PID signals to control frequency converter as setting value
2, Instantaneous flow rates output current signal 0/4~20mA
3, Accept external 0/4~20mA current signal settings
4, With RS232/485 interfaces
5, In the condition of power-off, parameters permanently saved, the data saved for 10 years 6, Overflow equipment, stabilize the flow rate
 
Technical parameters:
1, Feeding Capability：0.15-80 m3/h
2, Feeding Accuracy:  ≤ 2.0%

Specification parameters
Type    Flow rate （m3/h）    Screw diameter (mm)
LXC-150    0.15~4    150
LXC-200    2~10    200
LXC-250    3~20    250
LXC-300    5~30    300
LXC-350    10~45    350
LXC-400    15~80    400