MSA Instruments MSA Instruments  

       Pressure Transmitter
       Pressure Switch


Differential Pressure
       Differential Pressure Switches
       Differential Pressure Gauge


       Ultrasonic Level Transmitter
       Radar Level Transmitter
       Capacitance Type Level Transmitter
       Level Switch
       Level Gauges

Flow, Velocity
       Electromagnetic Flow Transmitter
       Ultrasonic Flow Transmitter
       Corioliss Mass Flow Meter
       Solid Flow meter
       Vortex Flow meter

Temperature Transmitter

Valve Positioner

Process Protection Measurement
       Belt Scale
       Weigh Feeders
       Acoustic Sensor

Safety Equipment
        Conveyer Safety Switch

Gas Detector

Pneumatic Valve Accessories
       I/P Converter
       Pressure Regulator
       Volume Booster

   Weigh Feeders

SITRANS weighfeeders from Siemens can improve the accuracy of processing, blend consistencies, accountability, and record keeping. All weighfeeders come standard with a belt weigh bridge and speed sensor. An integrator is required to complete the system.

The weigh feeder is used to deliver an accurate mass flow rate of material. In the majority of applications, material is profiled by an adjustable mechanical shear gate, which fixes the correct material bed depth for a given particle size.



  • SITRANS WW100: High-accuracy, low-capacity for minor ingredient additives
  • SITRANS WW200: Low- to medium-capacity for minor ingredient additives
  • SITRANS WW300: Medium- to high-capacity for macro ingredient additives  
  • SITRANS WW350: Medium- to high-capacity for macro ingredient additives

The feed rate is then maintained and adjusted by varying the speed of the belt. However, in some cases the belt speed is constant with rate control (if any) done by a pre-feeding device.

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