STAD weight screws are designed for continuous batching of dust-forming materials. Hourly flow rate is selected by the user and maintained by our COBRA control unit.

The machine is made up of 3 main components:
- supporting frame adapted to fit customer plant;
- weight screw custom-made to meet specific application needs, i.e. material specifications and desired flow rate;
- control panel providing total cycle control, can be customised to meet customer needs and interfaced with pre-existing plant systems.

On request, the machine can be fitted with level indicators upstream of the plant to monitor product in feeding buffer, diverter valves for material recovery and flow switches to control clogging.