Weigher for the majoritary products which are part of the required formula. It is built as a hopper to facilitate the charge and the discharge.

The majority products to be mixed, that commonly are part of the formulas are:

• Plaster / Plaster of Paris (Semi-hydrate).

• Anhydrite II.

• Lime.

• Calcium carbonate.

• Vermiculite.

• etc

It contains the following parts:

• A Hopper made of carbon steel, with a total capacity from 1.000 to 5.000 litres, with maximum level switch to limit the capacity of filling, and some fluidizers to facilitate the discharge.

• Lid with many inlets as products to weight.

• Inspection door in the lid.

• Pneumatic valves for discharging.

• Fluidizers at the bottom to facilitate the discharge.

• Filtering sleeve for ventilation.

• Flexible connections in all the inlets and in the outlet.

• Support structure for the unit.

• Load cells mounted over a reinforced frame.

• Security chains.

• Sum box.