Gravimetric Feeder Loss in Weight Feeder Controller for Plastic Film blown molding extrusion line

Advantages of plastic granule gravimetric dosing machine:

Walthmac gravimetric feeding machine/system is installed on the plastic pipe/film extrusion line to control the raw materials extrusion inlet and finished product haul-off speed in real-time simultaneously. This in-and-out closed loop control system can strictly control the meter weight, pipeline/film thickness. Thus improve the quality level and machine stability significantly.

Benefit and function of gravimetric doser:

* Shorten start-up time and reduce scrap rate.

* Easy operation, convenient mode switch between automatic and manual. Even new workers without experiences can manipulate the machine.

* Unique designed closed-loop control system (extruder screw speed and haul-off speed simultaneously) better than 90% of other products on the market which can control only extruder screw speed and can’t match up with ours precision rate & stability.

* Raise throughput per hour and save raw material by 3~5% in total.

* High precision rate up to 0.3%-0.5% against the set value.

*  Compensate the deviation caused by material bulk density, extruder and haul-off stability by fully automatic control.

*  Provide production data record(extrusion output, weight per meter, reference wall thickness, haul-off speed etc.

*  Check the extruder performance online and provide the key data for extruder maintenance.

Walthmac company had a strong expert & technician team who had invented and obatined over 29 utility model patents by now. Our uncompetitive technical strength promised any OEM & ODM orders to satisified customers' special  production requirement.

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