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Home arrow Products arrow Extrusion Control arrow Extrusioncontrol
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For complete control of mono or co-extrusion lines, PCC offers the Gravitrol® System. The Gravitrol® system takes the guess work out of extrusion control by continuously monitoring the mass throughput and adjusting the extruder screw speeds to maintain constant output by weight. With co-extrusion lines, Gravitrol® adjusts each extruder's throughput to precisely control the percentages of each layer in the end product. With the addition of the Gravitrol® line speed device, the system can be further configured to control and maintain consistent weight per length of product.

Gravitrol Flow


 

EXB
EXB Central Operator Station

As the main component of the Gravitrol® system, the EXB operator station communicates with the HGB weigh hoppers and the EXD/EXL drive modules over a high speed serial interface. The EXB is the primary operator interface control panel where the recipes are entered and the complete system is controlled.

 - Printable Specifications (german)
 - Printable Specifications (english)


hgb
HGB Series Weigh Hoppers

Precisely and continuously monitoring the amount of material consumed by the extruder, the HGB Series weigh hopper, in essence, turns the extruder into a gravimetric metering device. The HGB sends a continuous stream of weight loss readings to the EXB central operator station for processing.


 - Printable Specifications (german)
 - Printable Specifications (english)

EXD
EXD Drive Speed Control / EXL Line Speed Control

The EXD card provides the interface between the Gravitrol® system and the extruder drive. The EXL is used to control the take-off device by providing a pulse generator to measure line speed accurately for closed loop control.


 - Printable Specifications (german)
 - Printable Specifications (english)

 



Gravimetric Extrusion Control for X Series Blenders

Equipped with the Gravitrol® extrusion control software, the X-Series continuous gravimetric blender is able to control both the extruder drive (for constant throughput), as well as, the take-off device (for constant weight per length) with the same accuracy and precision as an HGB Gravitrol weigh hopper.


 - Printable Specifications (english)

 
Gravifluff                                         


GravifluffTM

The GravifluffTM system is designed to meter ground scrap back into the extrusion process by weight, while maintaining complete gravimetric control. Combined with the benefits of  automatic scrap recycling system and the Gravitrol® system, GravifluffTM gives complete control of extrusion lines.


 - Printable Specifications (english)

 

For your request:
Please contact us directly or send us the completed data sheet for extrusion control.

 

NOTICE:
The printable equipment specification sheets contained on this page were created with Adobe Acrobat. To view them, you will need the Adobe Acrobat Reader. If you do not have this program, you may download it for free by clicking the icon below.

 

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