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process automation ... extrusion ... blending ... material feeding

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Weigh hopper

extrusion control

Series BTW

  • throughput measurement on the loss-in-weight principle
  • - for extruder control
  • - for continuous gravimetric blending
  • material free-flowing pellets, regrind, powder
  • range: 0,1 ... 2.000 kg/h

Weight-per-meter control



Weight-per-meter control is a key process feature in extrusion lines for high-quality blown film manufacturing. GraviSys-g/m is an ideal solution either forinitial equipment or forrefurbishment or retrofit of a blown film line. The individual system components are:

  • Weigh hopper
  • Loss-in-weight controller GraviMaster 2408
  • Siemens PLC S7-1200 and HMI

More to initial equipment ...or to ... retrofit

Gravimetric Blender

gravimetric vibratory feeder

Gravimetric Continuous Blenders Series GCB

For gravimetric blending in high quality of free-flowing pellets, regrind or powder we offer modular units:

  • standard: 1 ... 5 components
  • weigh hopper Series BTW: 2 ... 100l
  • screw feeder, each: 0,1 ... 1000kg/h
  • vibration feeder: 1 ... 400kg/h
  • control unit: compact stand-alone unit or peripheral unit linked via Profibus/ Profinet

Throughput totalization

throughput totalization


The batch weigher CTW is determined as discontinuously totalizing automatic weighing instrument to totalize the throughput of regrind, regranulate or other solid bulk material with the following properties:

  • operating range: 500...5.000kg/h
  • stand-alone or system integrated operation
  • adaption to variable bulk density
  • application area: bulk material processing, injection moulding, extrusion
  • PLC: Simatic S7-1200 with Siwarex

The hopper weigher is also suited for batch-blending applications with a throughput up to 4,000kg/h.



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