Gravimeters

Gravimeters for Real-Time Monitoring gives you Real-Time Value

Gravimetric control system (GCS) monitors the raw material consumption in real-time mode and compares it to the haul-off speed.

If any deviation of actual metric weight from its calculated value occurs, GCS corrects the speed of the extruder or the speed of the haul-off unit. According to the Customer’s demands and requirements, the GCS instrumentation and software are delivered either for single-flow or for multi-flow monitoring.

A basic GCS is comprised of following components:

• Feed hopper
• Weighting hopper
• Metering valve and frame
• PLC with single user interface
• Line speed measurement with closed loop control
• Screw rotary speed measurement
• Measurement of screw output per one revolution(gr/r)
• Interfaces for upper level control and printer (optional).

Extron-Mecanor gravimetric system:

• Accurate and consistent dozing of main raw material and 1-6 additives.
• Easy maintenance and change-over for additive screws.
• Automatic correction of raw material dozing and extrusion speed.
• Gravimeter is made using standard components and integrated to extruder PLC.
• Flexible structure of the system ensures that there can be any number of components installed in one frame.
• Extron’s own gravimetric system ensures stability of work and high accuracy of mixing in different recipes.
• Raw material dosing directly into extruder’s feed zone to prevent separation of materials with different from main material weight.
• Servo-motors are used for each dosing component, synchronized with the speed of extruder and whole line. Real time surveillance
• Additional components can be installed after installation of line.
• Each material can be fed in amounts between 50% to 0.1%.