Screw weighers

The product introduced to the scales is kept constantly level inside the loading hopper by a level sensor, from here the product falls onto a bulk loading helix and a smaller helix for filling up the product in order to obtain the required weight.


The machine is composed of:

  • Helices controlled by an inverter.
  • Loading and un-loading hoppers.
  • Electric card for modular weighing type Siwarex U Siemens connected to the PLC of the machine.
  • Load cells, class C3 type HBM.
  • Electro- pneumatic shutter, “cap” type, applied to the single feeding helix in order to intercept the flow of product and eliminate any possible back up of product.
  • Protective guard and aspirator for possible dust.
  • Mechanical blocking bonds on the weighing container are responsible for eliminating possible vibrations of the container.
  • Pneumatic control panel in PVC complete with electronic valves.
  • Mechanism for the regulation of compressed air.


The weighing process is carried out by a system controlled by the load cells and digital pre-selection feeder, and has the following characteristics:

  • Weight viewable on an alphanumeric display.
  • Programming and input of weight carried out by digital keyboard.
  • Programmable self-tare calculation.
  • Automatic control of the product flow.

Memorisation of the best cycle data.

Screw weighers

Electronic scales with load cells.
  • WEIGHING UNIT WITH DOUBLE SCREW Mod. DC 04

    Electronic weigher with horizontal screws equipped with load cells.
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  • VERTICAL SCREW WEIGHING UNIT MOD. DC DP

    Weighing equipment with lost&weight vertical screw.
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