We know that we only thrive if we could guarantee our combined selling price competiveness and good quality advantageous at the same time for Factory made hot-sale China Lab Twin Screw Extruder for Powder Coating, High quality, timely service and Aggressive rate, all earn us a excellent fame in xxx field despite the international intense competition.
We know that we only thrive if we could guarantee our combined selling price competiveness and good quality advantageous at the same time for China Extruder, Powder Coating, Now the competition in this field is very fierce; but we are going to still provide best quality, reasonable price and most considerate service in an endeavor to achieve win-win goal. “Change for the better!” is our slogan, which means “A better world is before us, so let’s enjoy it!” Change for the better! Are you ready?

Gravimetric feeder
A gravimetric feeder is a self-calibrating dosing system that doses based on weight in speed.
In gravimetric dosing, the weight of the dosed additive is measured using a load cell that is the foundation of the entire system. Weight is calculated using loss-in-weight technology, which measures the reduced weight while dosing.
In the self-calibrating gravimetric feeder system, the stepper motor automatically alters its speed when a change is detected in the material flow. This eliminates the need for manual adjustment, which is required when using a volumetric feeder. Such a change in material flow can be the result of the addition of new material or fluctuations in the material density, among other factors. This means that, when using a gravimetric feeder to dose, you are in complete control of the quality of your final product. Thanks to the gravimetric feeder’s self-calibrating dosing system, you will never run the risk of overdosing and will therefore automatically save costs when using expensive additives.
Gravimetric feeder
Advantages
Self-adjusting / self-calibrating
100% control over your product quality
Easy to operate
Monitoring and reporting options
Higher saving on expensive additives
Fluctuations in density do not effect outcome
In-sensitive to material build-up
Automatic detection of material supply interruption
Accurate dosing cylinder
Stepper motor speed starting from 0.1 up to 200 rpm
Disadvantages
Relatively more expensive than a volumetric feeder, but short ROI.