Plastic Auxiliary Machine Gravimetric Feeding System For Extrusion HDPE Plastic Pellet
1. Working Principle & Model Selection
WalthMac Gravimetric Feeding System, makes the “unknown” empirical production become “known” precise,
adjust it to be valid and visible high precision. It keeps the meter weight of products in uniform within the range
of set value via measurement and automatic control for the extrusion line.
Used for: production process control of plastic pipes, cables, plastic films, etc.
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 |
2. 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. 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.