Engineering plastics
Engineering plastics
Engineering plastics
Industry background and current situation

The characteristics of engineering plastics make them an indispensable material in the manufacturing process of automotive machinery, electrical engineering, household appliances, living facilities, and sports and leisure products. The process covers the coloring and synthesis of basic polymers, all the way to the mixing of organic and inorganic fillers and reinforcing materials. We provide components such as particle conveying, gain-in-weight batch mixer, raw material storage silo, feeding valve, loss-in-weight feeder, aggregate silo, etc.


Our professional skills include material conveying, raw material recipe dosing and feeding processes, which allow us to design systems according to customer specifications. We provide mature solutions to engineering plastic processing plants to ensure high efficiency, economy, and stable product quality.

Typical applications

PP filling, reinforcement, flame retardant

PP filling, reinforcement, flame retardant

PA filling, reinforcement, flame retardant

PA filling, reinforcement, flame retardant

ABS/AS reinforcement, flame retardant

ABS/AS reinforcement, flame retardant

PC/ABS alloy flame retardant, reinforcement

PC/ABS alloy flame retardant, reinforcement

PEEK high-temperature polymer

PEEK high-temperature polymer

PET bottle or PA carpet fiber waste recycling

PET bottle or PA carpet fiber waste recycling

Dosing solution

PP/PA filling reinforcement

PC/ABS flame retardant filling reinforcement

PP/PA filling reinforcement

All color powders, additives, and base resin raw materials are premixed in the mixer.
Then, a volumetric feeder is usually added to the twin-screw extruder or internal mixer for processing.

PC/ABS flame retardant filling reinforcement

All color powders, additives, and base resin raw materials are premixed in the mixer.
Then, a volumetric feeder is usually added to the twin-screw extruder or internal mixer for processing.
Ingredients
Typical raw material composition
Resin: particles, packing density 0.5-0.7Kg/L; Good liquidity
Resin: powder, packing density 0.5-0.7Kg/L; Good liquidity
Flame retardant: liquid, density 0.85-0.9Kg/L; Average liquidity
Talc powder: powder, packing density 0.3-0.4Kg/L; Poor liquidity
Glass fiber: fibrous, packing density 0.8-0.85Kg/L; Average liquidity
Additive: powder mixing, packing density 0.3-0.4Kg/L; Average liquidity
The independent use of loss-in-weight feeder for liquid flame retardants improves the accuracy of flame retardant addition.
Each raw material is individually cut and accurately measured, making the dosing operation more convenient.
Stable operation of equipment and improvement of on-site environment.
Technics
Characteristics
Engineering plastics
Engineering plastics
Common equipment composition

Package feeding station

Refilling silo

Refilling valve

Loss-in-weight feeder

Aggregate silo

Twin screw extruder

Common equipment
Make up

Advantages of Sonner feeder

Multi-program
Multi-program
We support continuous/batch weighing, compatible with granular, powder, and liquid raw materials. Design a plan based on the customer's on-site situation.
01
More accuracy
More accuracy
The dynamic weighing module is equipped with a 24 bit 1:400000 resolution chip and a 32-bit CPU. Even with small feeding amounts, we can ensure stable feeding accuracy.
02
Dual closed-loop
Dual closed-loop
Flow and speed dual closed loop, flow (g/s) control adjustment frequency 500ms, solving the problem of accuracy in speed execution.
03
Anti-bridge
Anti-bridge
Excellent anti bridging performance, facing difficult to feed mineral powder, our flow control is more precise.
04
Easy control
Easy control
The entire system adopts a modular design, which is easy and quick to disassemble without tools, making it easy to clean and replace raw materials.
05