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chenxing
Product Description
The PVC Hot-Cutting Pelletizing Line is a continuous production system for granulating rigid PVC, soft PVC and waste PVC into uniform pellets. Built around a conical twin-screw extruder and hot-face cutting (mould face pelletizing), the line combines pneumatic conversion, strong-wind blowing and stainless storage for stable, high-speed extrusion and precise pellet shape. The system is suited for continuous operation and long-run stability while processing PVC powder mixed with CaCO₃, CPE, static control agents, wax and other additives.
Primary use: continuous granulation of virgin or recycled PVC materials into pellets ready for downstream processing or packaging.
Type: PVC pelletizing / granulating production line
Key core: Conical twin-screw extruder + hot-face cutting pelletizer
Output: Continuous pelletizing for rigid & soft PVC and reclaimed PVC
Highlights: precise pelletizing, high throughput, stable long-term extrusion, stainless storage and pneumatic conveying
Process flow:
Raw material + additive → Mixing → Conveying feeding → Hopper feeding → Conical twin-screw extruder → Hot-face cutting (mould face) → Cyclone separator → Vibration sieve → Blowing system → Storage hopper → Finished product packing
Standard line components (core):
Twin-screw conical extruder (SJSZ models)
High-speed mixer / material preparation
Hopper feeding & pneumatic conveying system
Hot-face cutting pelletizer (mould face pelletizing)
Cyclone separator (for fines recovery)
Vibration sieve / pellet classifier
Blowing / pneumatic transport system
Stainless steel storage hopper (adjustable)
Pellet cooling & classifying auxiliary equipment
Finished pellet packing station
Advanced pelletizing: Accurate hot-cutting on the mould face produces uniform pellets and good shape control.
Conical twin-screw extruder: High capacity, excellent plasticization for PVC powder and compounded PVC feedstock.
Continuous, stable operation: Pneumatic conversion and strong-wind blowing support long continuous runs with stable extrusion.
Material flexibility: Capable of processing rigid PVC, soft PVC and recycled/waste PVC with different screw designs.
Auxiliary handling: Integrated cyclone, vibration sieve and blowing/storage ensure clean conveying and high recovery.
Industrial reliability: Stainless storage containers and robust mechanical design enable extended high-speed operation.
Easy downstream integration: Pellets cooling and classifying equipment available for finished product quality control.
| No. | Model | Motor Power (kW) | Production Capacity (kg/h) |
|---|---|---|---|
| 1 | SJSZ-45/90 | 15 | 30–100 |
| 2 | SJSZ-51/105 | 18.5 | 50–120 |
| 3 | SJSZ-55/113 | 30 | 100–200 |
| 4 | SJSZ-65/132 | 37 | 150–250 |
| 5 | SJSZ-80/156 | 55 | 250–350 |
| 6 | SJSZ-92/188 | 90 | 500–600 |
Note: Model selection depends on target capacity, feedstock and pellet size. Exact configuration and auxiliary equipment will be tailored per project.
Pelletizing style: Hot-cutting on mould face (immediate cutting at die exit for clean, uniform pellets).
Screw design: Different screw profiles available for optimized plasticization of rigid PVC, soft PVC and reclaimed material.
Conveying & storage: Pneumatic conversion, strong blowing for pellet transport; stainless storage hoppers adjustable for continuous feed.
Auxiliaries: Cyclone separation for fines recovery, vibration sieve for pellet classification, pellet cooling & classifying units.
Control & safety: Standard industrial control package available; customised PLC and motor control options on request.
Q1 — How do I choose the right model for my required capacity?
A1 — Select the model by matching your expected hourly output and input material. Use the model table above as a baseline (e.g. SJSZ-80/156 for ~250–350 kg/h). For reclaimed or highly filled grades, choose the next higher capacity model to ensure stable extrusion.
Q2 — Can the line handle recycled PVC with fillers (CaCO₃) and additives?
A2 — Yes. Screw geometry and processing parameters are adjusted for filled or compound PVC. Inform us of filler levels so we can specify the proper screw design and downstream handling.
Q3 — What pellet shape and size can I expect?
A3 — Hot-face cutting on the mould face produces compact, even pellets. Final pellet size depends on die design and cutter settings; we supply mould design guidance based on target pellet dimensions.
Q4 — Is the production line suitable for 24/7 continuous operation?
A4 — Yes. The line is designed for continuous runs. Proper maintenance schedules, spare parts and trained operators are recommended to ensure uptime.
Q5 — What downstream equipment is required?
A5 — Standard downstream units include cyclone separators, vibration sieves, pellet cooling/classifying equipment and storage hoppers. Optional automated packing and bagging can be integrated.
Q6 — Do you provide installation and commissioning?
A6 — Yes. We offer installation, commissioning, operator training and technical support as part of the project scope.
Q7 — What electrical & utility needs should I prepare?
A7 — Power depends on the chosen model (motor power shown in table). Additional utilities include compressed air for pneumatic systems and adequate ventilation/extraction for cyclone and fines handling. Exact requirements will be provided in the quotation.
