Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
Discover how a PVC pelletizing machine built around the SJZ65/132 conical twin-screw extruder delivers stable, high-output PVC granules for pipes, cable compounds, profiles, and recycled PVC. This turnkey PVC granulator package integrates a high-speed mixer, spiral loader, water-ring/hot-face pelletizer, multi-stage pneumatic conveying, cyclone separation, and vibrating screen — engineered for energy efficiency, consistent pellet size, and low maintenance.
Product Overview
Turnkey PVC Pelletizing Equipment Optimized for Rigid & Flexible PVC
- Complete PVC compounding and granulation line: feeding, mixing, extrusion, hot-face pelletizing, drying, conveying, separation, and screening.
- Stable throughput of 230–260 kg/h per SJZ65/132 line, ideal for pipe-grade PVC pellets, cable compound pellets, and recycled PVC granules.
Built for Consistency, Safety, and Uptime
- PLC/HMI control with precise temperature zones and frequency control on main drives.
- Wear-resistant metallurgy (38CrMoAlA nitrided barrel/screws, bimetallic options) supports long service life and high-quality pellets.
System Configuration and Key Features
Feeding & Material Handling
Spiral Loader (3 units)
- Rated loading capacity: 1000 kg/h per loader; hopper volume: 150 kg.
- 114 mm feed tube, 2.2 kW 6-pole motor for stable resin and additive feeding.
- Optimized for PVC resin, stabilizers, plasticizers, and CaCO3 fillers.
High-Speed Mixing and Cooling
SRL-Z500/1000 High-Speed Mixer Set
- Total volume: 500 L (hot) + 1000 L (cool); effective volumes: 350 L (hot) + 750 L (cool).
- Hot mixer: 0–1400 rpm, 75 kW motor with Yaskawa VFD; self-friction heating for fast gelation and uniform dispersion.
- Cool mixer: 60 rpm, 15 kW motor for rapid temperature pull-down, protecting PVC from thermal degradation.
- Construction: 304 stainless steel pots (8 mm wall, 10 mm bottom); cast stainless impellers (ZG1Cr18Ni9Ti); dual-seal pneumatic lids.
- Output: 800–1200 kg/h depending on formulation and cycle time.
- Electricals: Dongqi temperature controllers, Siemens contactors, Schneider pushbuttons for robust reliability.
Extrusion & Melt Stabilization
SJZ65/132 Conical Twin-Screw Extruder (2 sets)
- Materials: 38CrMoAlA nitrided barrels/screws with hard chrome plating; nitriding depth 0.5–0.7 mm; surface hardness 800–900 HV.
- Screw diameter: Φ65/132 mm; effective length: 1430 mm; speed: 1–35 rpm for gentle PVC processing.
- Drives: 37 kW Siemens(Beide) main motor with Yaskawa VFD; 1.1 kW forced feeder with Yaskawa VFD for steady intake.
- Heating/Cooling: Cast-aluminum heaters with 250 W cooling fans per zone; total barrel heating power 24 kW.
- Throughput: 230–260 kg/h (approx. 4–6.2 tons/24 h), depending on recipe and pelletizing method.
- Gearbox: Heavy-duty reducer from Jiangyin main factory; water-cooling interfaces on barrel ensure thermal stability.
- Controls: Tight temperature control (±1°C) with Dongqi controllers; Siemens contactors; Schneider pushbuttons; Qiansheng digital indicators.
Pelletizing & Downstream
PVC Hot-Face Pelletizing Die
- Die steel: ZG40Cr for strength and thermal stability.
- Cutting: Hot-face pelletizing with 2 blades (Cr12 tool steel) driven by a 2.2 kW motor; Yaskawa VFD for precise cutter speed.
- Safety: Stainless-steel guard around cutting area.
Pneumatic Conveying & Drying
- Three-stage air conveying with 3 × 3 kW blowers; 1.5 kW drying blower for moisture removal and pellet surface drying.
- Stainless-steel air pipes (201 SS) and cyclone separation bins for dust control and efficient transfer.
Cyclone Separation & Storage
- Cyclone bins constructed from 2 mm 201 stainless steel; capacity: 500 kg per bin.
- Manual slide-gate discharge valves for controlled unloading.
Vibrating Screen
- Length: 2.5 m; dual 0.2 kW vibration motors.
- Effective screening area: 500; removes fines/overs to ensure uniform pellet size for extrusion or injection applications.
Performance and Energy Efficiency
Stable Output with Low Specific Energy
- Typical specific energy: 0.18–0.28 kWh/kg for standard PVC formulations.
- Vector-controlled drives (Yaskawa) maintain torque at low screw speeds, reducing melt oscillation and improving pellet uniformity.
Durability and Maintenance
- Nitrided, hard-chrome surfaces resist abrasion from filled PVC compounds (e.g., CaCO3).
- Modular design allows fast blade changes, easy screen maintenance, and straightforward access to heaters and fans.
Applications
Building & Construction
- Pipe and fittings, cable conduits, window profiles, siding, wall panels, waterproof membranes.
Electrical & Cable Compounds
- Insulation and sheathing compounds; halogenated/heat-stabilized PVC pellets for wire and cable.
Furniture & Home
- Edge banding, floor skirting, decorative profile substrates, appliance components.
Automotive & Industrial
- Interior trim components, seals and gaskets, protective sleeves, flexible hose compounds.
Recycling & Circular Economy
- PVC recycling granulation for reprocessing scrap into stable, reusable pellets.
Quality Control and Safety
Intelligent Control & Traceability
- Recipe management via VFD/temperature profiles; tight zone control ensures consistent gelation and thermal history.
- Optional gravimetric feeding and melt monitoring can be integrated for premium grade pellets.
Compliance & Safeguards
- Emergency stops, guarding on cutting head, interlocks on mixer lids, and proper dust control via cyclone and air conveying.
- Closed-loop water-cooling compatibility helps minimize water usage and environmental impact.
Commercial Terms & Support
Delivery, Testing, and Acceptance
- Factory pre-acceptance at supplier site before shipment: layout, configuration, parameter verification, function tests, and programming checks.
- Final on-site acceptance at buyer’s factory within one week of installation, including 4-hour continuous trial run and performance verification.
Warranty and After-Sales
- 1-year warranty from final acceptance (heaters 6 months).
- 4-hour response time and 48-hour on-site service during and after warranty; lifetime paid service with spare parts at ex-factory price.
Logistics and Pricing (Reference from Contract)
- Turnkey package included mixers, loaders, extruders, pelletizer, air conveying, cyclone bins, vibrating screen.
- Quoted total: 408,000 RMB (incl. 13% VAT, freight, installation & commissioning) — for reference; customized offers may vary by market and options.
Why Choose This PVC Pelletizing Machine?
Market-Proven ROI and Reliability
- Conical twin-screw technology excels at low-temperature processing of PVC, reducing thermal degradation, gel formation, and yellowing.
- Balanced line design (mixing → extrusion → hot-face pelletizing → pneumatic conveying → screening) ensures pellet quality and high uptime.
Competitive Advantages
- Energy-efficient drives and robust metallurgy extend service life and cut operating costs.
- Flexible configuration supports rigid PVC, flexible PVC, CPVC (with appropriate upgrades), and filled compounds.
