Gravitrol® Weight Throughput and Length Stability Control
All extruder screw speeds automatically adjusted when main extruder screw or nip speed is changed to maintain set weight per unit length and layer percentages.
Gravitrol® HG Series 2 for Continuous Gravimetric Blenders
In this most advanced configuration, the information is sent to the central Gravitrol® computer which adjusts extruder screw speed or take-off speed to maintain weight and length throughput to ± 0.5% by weight or better. Standard hopper sizes can control extruder throughput at rates from 4.5 to 4500 kg/hr (10 to 10000 lb/hr).
Gravitrol® extrusion control offers the benefits of improved product quality, reduced material usage, quicker startups and product changeovers, reduced scrap, and improved product repeatability. At the same time, it reduces the operator’s workload by maintaining a constant output, regardless of screen pack or material variations. PCC’s HG Series 2 weight hopper mounts directly onto the extruder throat, requiring no additional support. Each hopper is equipped with a touch screen PLC which connects to the load cell and precisely measured the extruder’s material consumption.
Gravitrol® HGB Series for Batch Gravimetric Blenders
In this most advanced configuration, the information is sent to the central Gravitrol® computer which adjusts extruder screw speed or take-off speed to maintain weight and length throughput to ± 0.5% by weight or better. Standard hopper sizes can control extruder throughput at rates from 4.5 to 4500 kg/hr (10 to 10000 lb/hr).
Gravitrol® extrusion control offers the benefits of improved product quality, reduced material usage, quicker startups and product changeovers, reduced scrap, and improved product repeatability. At the same time, it reduces the operator’s workload by maintaining a constant output, regardless of screen pack or material variations. PCC’s HGB Series weight hopper mounts directly onto the extruder throat, requiring no additional support. Each hopper is equipped with a touch screen PLC which connects to the load cell and precisely measured the extruder’s material consumption.
Gravitrol® Upgrades
Process Control offers a new selection of upgrades for Gravitrol® including a colour touch screen controller, PLC based extruder line speed control, and a DSP weigh module upgrade kit, that will improve your system’s performance and longevity. These upgrades not only add years to your Gravitrol’s® life, but can actually improve your accuracy as well. Additionally, the upgrades offer a way to simplify the process and postpone future replacement, making operation easier and saving you money all at once. Your older Gravitrol® systems controls, drive modules, and weigh module chips are facing the threat of becoming obsolete; ensure that will not happen by upgrading today.
