Parallel type
- Product Description
- 概要
-
Hard PVC pelletizing line by using parallel twin screw extruder
Model
HYPS95/28
HYPS112/28
HYPS125/28
HYPS135/28
Motor (kw)
55
90
110
132
Output(kg/h)
600
900
1000
1300
SN
Specification
Description
1
Material
Stainless steel 304
2
Application
Cooling
3
Cooling method
Blower
4
The motor of blower
9 kw
5
Number of cooling stages
3 stages, each stage including fan and hopper
6
The volume of the first two hopper
600 L
7
The volume of the last hopper
1700L or 2 tons of material with simple valve switch.
Hard PVC Parallel Twin-Screw Pelletizing Line – High‑Output Compounding System for Rigid PVC Granules
Complete Manufacturing Solution for High‑Volume PVC Profile, Pipe & Injection Molding Applications
Our Hard PVC Pelletizing Line, featuring advanced parallel twin‑screw extrusion technology, is a high‑performance compounding system engineered for the large‑scale production of rigid PVC granules. Producing uniform, dense pellets with excellent flow characteristics and consistent quality, this line is the ideal choice for manufacturers supplying raw materials for PVC profile extrusion, pipe production, injection molding, and other rigid PVC product applications – particularly where high filler content and demanding formulations are required.
Built as a comprehensive system comprising high‑capacity parallel twin‑screw extruders, hot‑die pelletizers, and automated cooling/classification units, this line ensures exceptional plasticisation, consistent pellet geometry, and reliable continuous operation – providing a complete manufacturing solution from PVC powder blending to finished granules ready for downstream processing.
Why Choose Our Hard PVC Parallel Twin‑Screw Pelletizing Line?
Advanced Parallel Twin‑Screw Extrusion Technology
Hard PVC pelletizing with high filler content (e.g., 100 phr calcium carbonate or more) demands specialised processing equipment. Our line features high‑performance counter‑rotating parallel twin‑screw extruders specifically engineered for rigid PVC compounding. The parallel screw design offers distinct advantages :- Superior plasticisation – Longer L/D ratios (up to 34:1) provide extended residence time for optimal melting and homogenisation of high‑carbonate formulations
- Enhanced corrosion resistance – Parallel screws offer higher resistance to the corrosive action of carbonate fillers compared to conical designs, ensuring longer screw and barrel service life
- Greater material‑coating capability – Extended processing length ensures calcium carbonate is thoroughly coated and amalgamated, preventing brittle end‑products
- High output capacity – Models from 300 kg/h up to 7,000+ kg/h to match large‑scale production targets
Superior Compounding for High‑Filler Formulations
Parallel twin‑screw extruders are particularly well‑suited for challenging rigid PVC compounds:- Optimised for PVC + 100 phr CaCO₃ – The extended screw design ensures complete jellification and uniform dispersion of high‑filler formulations
- Flexible processing – Suitable for both dry‑blend processing and recycling of post‑consumer materials
- Optional shear‑gap adjustment – Advanced models feature electrically driven shear gap adjustment (EMS) for processing the entire spectrum of PVC formulations from soft to hard using the same screw set
Precision Hot‑Die Pelletizing System
The heart of the pelletizing process ensures consistent pellet geometry and high production efficiency:- Uniform pellet size – Even cutting at the die face produces dense, solid, and aesthetically uniform granules (Φ3–Φ4mm)
- High‑efficiency air conveying – Pneumatic transfer system moves pellets to cooling and classification stages without degradation
- Low‑noise, dust‑free operation – Advanced cooling systems eliminate odour and dust issues
Comprehensive Cooling & Classification Downstream
The line includes integrated auxiliary equipment for complete pellet finishing:- Cyclone separator – Separates pellets from conveying air
- Vibration sieve – Classifies pellets by size, removing fines and oversize particles
- Air‑cooling or water‑cooling systems – Rapidly cools pellets to ambient temperature with high energy efficiency (0.06–0.08 kWh/kg)
- Storage silo with optional packaging – Collects finished granules for automated bagging
Superior Pellet Properties
Hard PVC pellets produced by our parallel twin‑screw line offer exceptional characteristics:- Excellent flowability – Uniform size and shape ensure consistent feeding to downstream extruders and injection moulding machines
- High bulk density – Reduces storage and transportation costs
- Consistent quality – Precisely controlled formulations for repeatable end‑product properties
- Broad application suitability – Ideal for pipe, profile, window frame, and injection‑moulded components
Versatile Material Capability
Our line is engineered to process a wide range of PVC formulations:- Rigid PVC (hard PVC) – Standard and custom formulations for pipe and profile applications
- CPVC – Chlorinated PVC for high‑temperature applications
- Recycled PVC – Post‑consumer recyclate (PCR) material processing
- WPC compounds – Wood‑plastic composite materials
- Soft PVC – Plasticised PVC compounds with EMS option
Fully Automated Production Control
Integrated with advanced Siemens/Omron PLC control systems and intuitive HMI interfaces, the line offers full automation of extrusion parameters including melt temperature, screw speed, and pelletizing rate. Real‑time data acquisition, recipe management, and fault diagnostics ensure consistent quality and minimise production downtime .Main Line Components
Component Function
High‑Speed Mixer / Cooling Mixer Unit: Prepares and homogenises PVC powder blends with additives
Automatic Feeder System: Convey screw or loss‑in‑weight feeder for precise material delivery
Parallel Twin‑Screw Extruder (counter‑rotating): Provides high‑capacity plasticisation and compounding for rigid PVC with high filler content
Hydraulic Screen Changer: Continuous operation with quick screen changes to remove impurities
Die‑Face Pelletizer (Hot Cutting): Precision cutting of extruded strands into uniform pellets
Air‑Conveying System: Pneumatic transfer of pellets to cooling and classification stages
Cooling System (Air or Water): Rapidly cools pellets with high energy efficiency
Vibration Sieve: Classifies pellets by size; removes fines and oversize
Storage Silo / Automated Packaging: Collects and bags finished pellets for distribution
Typical Applications for Hard PVC Pellets
- PVC pipe production – Water supply pipes, drainage pipes, conduit pipes, and gas pipes
- PVC profile extrusion – Window and door frames, skirting boards, decorative profiles
- PVC injection molding – Fittings, valves, connectors, and industrial components
- CPVC products – High‑temperature piping systems
- WPC products – Wood‑plastic composite decking and profiles
- PVC cable compounds – Insulation and sheathing materials
Key Advantages at a Glance
✅ Advanced counter‑rotating parallel twin‑screw extrusion – optimised for high‑filler hard PVC compounds
✅ High output capacity – models from 300–7,000+ kg/h to match large‑scale production targets
✅ Superior pellet quality – uniform size, high density, excellent appearance
✅ Extended screw design – L/D up to 34:1 ensures complete plasticisation and jellification
✅ Enhanced corrosion resistance – superior performance with carbonate‑filled formulations
✅ Optional shear‑gap adjustment – processes soft to hard PVC with same screw set
✅ Complete downstream system – integrated cooling, classification, and packaging
✅ Energy‑efficient – consumption as low as 0.06–0.08 kWh/kg
✅ Lifetime technical support – prompt spare parts supply and 24/7 remote assistance
Why Partner With Us?
Establishing a hard PVC pelletizing facility with parallel twin‑screw technology demands exceptional engineering expertise and proven process knowledge. As a leading manufacturer of PVC compounding systems, we provide:
- Custom engineering – lines tailored to your specific capacity, formulation, and production targets
- Comprehensive screw design – custom screw geometries for high‑filler and challenging formulations
- Formula guidance – technical support for material formulation and raw material sourcing
- Turnkey project management – from factory layout and equipment installation to final commissioning
- On‑site installation & training – our senior field engineers ensure smooth startup and operator proficiency
- Lifetime technical support – prompt spare parts supply, remote diagnostics, and 24/7 technical assistance
Keywords:
hard PVC pelletizing line, parallel twin screw extruder pelletizer, rigid PVC granulation production line, PVC compounding extruder, counter rotating parallel twin screw pelletizer, high output PVC pellet making machine, PVC granulation equipment, CPVC pelletizing plant, high filler PVC compound extrusion, turnkey PVC pelletizing factory solution
PLC control
Big silo
Strong blower cooling
Special cutter
Good granules
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(With PS110/28 extruder)
CONTACT US
Head office: Rm 2205 Angel Building Bagua 4th Road Futian Shenzhen, China
Factory address: C04 Huading Industrial Zone, Hannan Wuhan, China
Mr. Xiang (Whatsapp/wechat/Tell）
+86 13823232106
Mr. Davie (Whatsapp/wechat/Tell）
+86 13823280499