Gravimetric Control System

Brief Intro:

WALTHMAC GMS meter weight control system is based on a “machine learning” control algorithm that implements multiple control strategies for the extrusion industry to achieve the best production process requirements. It is widely used in extrusion lines for plastic pipes, sheets and cables. Based on the great benefits that WALTHMAC GMS meters weight control system brings to users in terms of quality control and cost saving. GMS series products have become the standard configuration of many high-end extrusion equipment manufacturers.

System Principle：

The high-precision fast weighing module is used to continuously measure the material consumption of the extruder. The embedded control unit collects the relevant data of the production line, the screw speed and haul-off to form a closed-loop control system. Once setting meter weight/extrusion output, Gravimetric meter weight control system adjusts the screw speed and the haul-off speed in real time according to the set value to control the wall thickness pf pipe.

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Applications：

Applications: The production process control of plastic pipes, cables, optical cables, plastic films, etc.

Advantages:

Online addition of color masterbatch and additives in continuous production process are available;
The ratio can be modified in real time, and the weight loss measurement can automatically correct the feeding error;
Feeding quantity automatically follows the amount of extruder extrusion, shortening the start-up time;
Save raw materials 1% to 5%;
Ability to give scientific judgment data for the stability of the extrusion system and decision data for extrusion system maintenance;
Stabilize the production process and improve product quality;
No parameterization, simpler operation, lower requirements for workers' ability and quality;
Accuracy error: <0.3~0.5% (differs from the different machine and raw materials);
Meet the different precision requirements of customers.

Parameter Table：

Model	Output (kg/hr)	Size (mm)	Max output (kg/hr)
GMS-02	0.6~60	430290680	60
GMS-04	1~150	430290750	150
GMS-06	10~350	460320810	350
GMS-12	25~500	460320910	500
GMS-20	35~900	5103601010	900
GMS-30	60~1250	5103601230	1250

App Case

Customer Appraisal

Qualification Honor

Gravimetric Control System

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