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This integrated automatic feeding, dosing and mixing system is specially matched with PVC pipe extruder lines. It integrates bag unloading, pneumatic conveying, high-precision additive weighing, mixing, silo storage and central dust removal with PLC centralized control. All raw material processes run in fully closed pipelines without dust pollution. It eliminates manual weighing errors, stabilizes finished PVC pipe quality and cuts labor cost greatly. Widely applied to PVC pipe, window profile and door panel manufacturers, we have complete industrial cases in Suzhou plastic factory.
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Raw material pre-processing is the core, indispensable front-end procedure of the full PVC extrusion production line. The accuracy, cleanliness and automation level of raw material batching directly determine the stability of finished PVC products, workshop production environment and long-term factory operating costs. Traditional manual unpacking, manual weighing and manual material transfer modes bring many uncontrollable drawbacks such as unstable formula proportion, serious dust pollution and high labor expenditure. This complete automatic feeding, dosing and mixing integrated system solves all pain points of manual production in one set, and helps PVC manufacturers realize three core production goals as follows:
The whole set of system realizes unmanned automatic circulation of raw material unpacking, conveying, weighing, mixing and extruder feeding. After putting into operation, the factory can cut 3~5 full-time workers engaged in raw material loading and batching, completely eliminate repetitive manual labor, and continuously save labor wages, social security and related management costs year by year.
A complete standardized automatic raw material handling production line for PVC extrusion industry consists of 8 matching functional modules, which work together to form a closed-loop automated production flow:
Raw Material Bag Unloading & Loading Station
Special ton bag/woven bag unloading equipment separately configured for PVC resin and calcium carbonate (CaCO₃), realizing automatic blanking without manual dumping and shoveling materials.
Pneumatic Conveying System for Silo Feeding
High-pressure dense phase pneumatic conveying equipment transports unpacked raw materials from loading station to large-capacity storage silos in fully sealed pipelines, no dust leakage during long-distance transmission.
Automatic Vacuum Dosing & Weighing Unit for PVC Additives
Vacuum feeding matched with high-precision loss-in-weight weighing sensor, automatically metering PVC resin, stabilizer, lubricant, titanium dioxide and all kinds of additives according to preset formulas.
PVC Mixing Unit (Hot & Cold Mixer Combination)
Matching high-speed hot mixer and cooling mixer, fully stir and homogenize weighed PVC raw materials to form uniform compound materials without local agglomeration.
Finished Compound Storage Silo
Large-volume 304 stainless storage silo for mixed PVC compound, playing the buffer storage role to supply extruders continuously without production pause.
Automatic Feeding System for Extruders
Independent closed feeding pipelines matched for each PVC extruder, evenly distribute stored compound materials to every production line according to real-time production demand.
Central Integrated Dust Removal System
Central pulse backwash dust collector covers all unloading, conveying, mixing stations, fully captures floating powder generated in each processing link to keep the workshop dust-free.
Centralized PLC Electrical Control Cabinet
Unified touch screen central control system, supporting formula storage, real production data recording, automatic fault alarm and one-click parameter adjustment of all 8 units.
Customer facotry case
Client Name: Jiangsu PeiDa Plastic Co., Ltd
Plant Location: SuZhou, China
Construction Year: 2018
Final product: PVC pipe
Plant for: Automatic feeding system,Dosing and weighing,Mixing system,Conveying system.
Q1: What PVC products can this automatic compounding system match?
A1 It is widely used for PVC water & drainage pipe, plastic window profile, PVC door panel, SPC floor and all PVC extrusion profiles.
Q2: How many manual workers can this system replace?
A2 A standard set for 4–6 extruders can replace 3 to 5 full-time batching & feeding workers, largely saving labor expense.
Q3: Is the whole production process dust-free?
A3 Yes, all material conveying and mixing links adopt fully sealed pipeline, matched central pulse dust collector to collect floating powder, no dust overflow in workshop.
Q4: How to guarantee the dosing accuracy of PVC additives?
A4 Equipped with imported high-precision weighing load cell, single batch weighing tolerance controlled within ±5g, avoid formula deviation.
Q5: Does the system store production formulas and data?
A5 The central touch screen supports unlimited PVC formula storage; auto record output, material consumption and batch data, data can be exported via USB flash drive for quality tracking.
