Twin screw loss-in-weight feeder for plastic/chemical industry
Walthmac WPB series Twin screw loss-in-weight feeder is suitable for dosing feeding various raw materials like granule, pellet, powder, calcium carbonate, titanium oxide, carbon fiber, talc/talcum. An excellent raw materials processing auxiliary device for extruder line, injection line.
Walthmac WPB series Twin screw loss-in-weight feeder is its high level of precision and accuracy. With an average sampling error of just plus or minus 0.5~1%, users can have confidence in the reliability of their measurements. Additionally, the feeder boasts linear accuracy of plus or minus 0.5% of the set value, further enhancing its precision.
Walthmac WPB series twin screw loss-in-weight feeder is its ability to coordinate with multiple machines. This makes it an ideal choice for high-volume production environments where efficiency and productivity are critical.
For added convenience and flexibility, the feeder can also be equipped with remote control capabilities, allowing operators to adjust settings and monitor performance from a distance.
Twin Screw Loss-in-weight Feeder parameter
Walthmac gravimetric screw powder feeder series has in total 4 standard models for option:
| MODEL | Size/cm | NW | Throughput（L/HR） | Power | Precision rating |
| WPB-T1 | 57*40*59 | 50 | 0.8-228 | 0.2 | +- 99.5% |
| WPB-T2 | 89*55*115 | 80 | 1.3-432 | 0.8 | +- 99.5% |
| WPB-T3 | 106*63*121 | 150 | 1.8-532 | 1.8 | +- 99.5% |
| WPB-T4 | 106*63*156 | 190 | 2.1-639 | 1.8 | +- 99.5% |
Walthmac WPB series feeder Advantage
（1）Walthmac WPB series twin screw loss-in-weight feeder is an ideal solution for the plastic and chemical industry. Its advanced co-rotating parallel twin screw pelletizing extruders ensure efficient and accurate feeding of materials.
（2）With the Walthmac centralized control system, the user-friendly HMI interface allows for easy operation and monitoring of the feeder system. Additionally, the double stage/double degassing recycling extruders, crushers, mixers, storage tanks, vibrators, granulators, and blowers provide versatility for production processes.
（3）The feeder is equipped with a responsive servo motor that ensures quick and accurate response to changes in material flow. This helps to reduce waste and increase production efficiency.
Products Description
Walthmac gravimetric screw powder feeder series ：
-Various size screw feeding structure for different flow rating material and throughput.
-7'' color touch-screen, interface straight forward and clear.
-Servo motor drive, accurate and instant response.
-Self-adjust/correcting function.
-Twin screw feeding design.
-Separate working & Co-working mode.
-Stainless steel structure
Twin Screw Loss-In-Weight Feeder Technical parameter
| Applicable material | powder,granular,flake,liquid | Precision error of dosing | ＜0.3--0.5% |
| weighing resolution | 1 per 4 million | cintrol Unit | microprocessor |
Communication interface | multiple industrial filedbus are available | Driven Element | servo drive |
Material | stainless steel, Aluminu | power | 0.2kW-1.8kw |
Power Supply | 220V AC(customized power supply is available) | ||
After-sales service
>introducing in detail features and application of the products to customer
>Providing operation data of the related machine & equipment
>Recommending engineering conditions required for installation of the machine & equipment
>Communicating in time the manufacturing progress of the machine with user
>Providing assistance in technical conditions, screw combination and barrel disposition needed for product
>Providing on-the-spot technical assistance in installation, commission and training
>Providing long-term maintenance service and spare parts
>Giving technical support to customer for developing new product
>Providing free maintenance for a year
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