Gravimetric System Dosing Feeder for Plastic Extrusion Machinery HDPE Pellet
1. Working Principle & Model Selection
Gravinetric Dosing Feeder works as adjusting extruder screw speed and haul off speed to realize controlling
the pipe wall thickness,setting it in a stable value. Walthmac supplies Gravimetric Dosing System for plastic
pipe industry, this system is used for control the extruder's screw speed and haul off speed to maintain the
thickness of pipe in a setting value.So machines will help to save materials for manufacturers.
Parameters controlled to be constant by this system,machine is applicable for many industries:
- Plastic Pipe
- Cables
- Optical Cables
- Plastic Film
(By controlling the speed of screw and haul off,realize adjusting pipe wall thickness in real time. )
2.Technical Parameters
| User Interface (HMI) | 7''/10'' true color touch screen |
| Control Accuracy Error | 0.3-0.5% |
| Control Unit | Microprocessors,Adaptive algorithm |
| Communication Interface | Available for multiple industrial fieldbus |
| Power | <10W |
| Certifications | CE |
Models Selection
| Model | Output (Kg/h) | Size |
| GMS-08 | 10-350 | 665 * 345 * 775 |
| GMS-12 | 25-500 | 665 * 345 * 900 |
| GMS-20 | 35-900 | 665 * 345 * 1009 |
3. What Gravimetric Dosing Feeder could do for you?
1. Shorten start-up time, obtain production data when you start with this system.
2. Help to save 1%-5% raw materials by production at minimal qualified wall thickness range.
3. Stable production process, improve pipe quality.
Parameters controlled to be constant by Gravimetric Extrusion Control System:
● Extruder throughput
● Meter Weight
● Gravimetric Feeding System can simultaneously control the extrusion throughput and meter weight to promise
constantly manufacturing qualified products. It is wildly used on the extruder to avoid unstable extrusion throughput
caused by various factors.
3. Product Description
1. Shorten start-up time, lower the rate of disqualification
2. Gravimetric Dosing feeder could save raw material 1% to 5%
3. Easy use and maintenance, even new workers can directly working with.
4. Automatically collecting data of extruder capacity, meter weight, wall thickness and feedback to control system instantly
for real time adjustment, etc.
5. Close-loop control design from both sides of extrusion and haul-off to reach high Precision rating of 99.5 ~ 99.7%.
4. Delivery Shipping and Serving
l Initial commissioning of systems
l Functioning test
l Final inspection with the customer
l Extension: Further training
5. FAQ
Q: Are you a factory or trading company?
A: We are factory, which has its own export license.
Q: What are the payment terms?
A: We prefer T/T, but L/C at sight will be ok for us as well.
Q: How does your factory carry out quality control?
A: Skillful workers take care of every detail through production.
Q: If you can be customized?
A: We can make products according to customer's requirements.
Q: What benefits could Gravimetric Dosing Feeder bring to me?
A: Material saving up to 1-5% and labor cost saving.
