Volu-/Gravimetrical

Exact Dosing

Volumetric dosing:

 

Volumetric dosing offers a simple and economical way of dosing bulk goods in the desired volumes.

Almost every mechanical conveyor always conveys a certain volume. A discharge screw conveyor, for example, is 100% filled in an intake area. That is to say that a defined volume is between the screw conveyor blades.

Depending on the speed of rotation, this results in a conveyed volume in m³/hr. This conveyed volume is calculated and set upon commissioning. If the flow behaviour of the bulk good changes, the conveying capacity will also change without this being detectable.

In addition, a precise tonnage is often required. For this, volumetric dosing is less suitable since the conveyed weight varies with the weight dispensed.

 

We would be happy to advise you on which dosing system is best suited to your application!

 

Gravimetric dosing:

 

With gravimetric dosing, a distinction is made between continuous and batch dosing.

 

Continuous gravimetric dosing is distinguished from volumetric dosing only by the fact that the speed of conveying (e.g. rotation speed with a screw conveyor) is individually adjusted. To this end, the upstream container is equipped with weighing cells. The decrease in weight over time results in a precise conveying capacity in t/hr.

 

Since the conveying capacity may be monitored by the weighing cells and if necessary adjusted, precision of ±2%/10 min may be achieved with this system.

 

With gravimetric batch dosing, the destination container is equipped with weighing cells. The dosing is done into containers with the discharge element until the required weight is reached. Depending on the accuracy, it is necessary to work with coarse and fine flows. This permits us to achieve batch precision of ±0.5%.

 

We would be happy to advise you on which dosing system is best suited to your application!

Volu-/Gravimetrical

Contactform Dosing Volumetric

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