SJZ65/132 Conical Twin-Screw Extruder

Key Features

High Torque and Low Shear Processing

• Conical twin-screw geometry provides strong feeding and high torque at low screw speed
• Gentle shear and uniform plasticization minimize gelation defects and plate-out
• Optimized compression and kneading elements ensure homogeneous melt and surface gloss

PVC-Optimized Barrel and Screw

• Nitrided or bimetallic barrel with wear- and corrosion-resistant screw alloy
• Designed for PVC dry blend, CaCO3-filled compounds, and recycled PVC reprocessing
• Efficient venting/degassing to remove moisture and volatiles, improving mechanical properties

Precise Temperature and Pressure Control

• 4–6 barrel heating/cooling zones with closed-loop PID and air/water cooling
• Melt pressure and temperature feedback with alarm/interlock for safe operation
• Optional melt pump for ultra-stable output and dimensional accuracy

Energy-Efficient Drive and Smart Control

• High-efficiency gearbox and IE3/IE4 motor reduce kWh/kg
• PLC/HMI with recipe management, data logging, and trend analysis for process traceability
• Optional OPC UA/MQTT connectivity for plant-wide monitoring and predictive maintenance

Popular keywords included: SJZ65/132 conical twin-screw extruder, PVC extrusion machine, PVC profile extrusion, PVC pipe extrusion, high-torque twin screw, energy-efficient extruder, melt pressure monitoring, bimetallic barrel, degassing extruder, precision temperature control.

Applications

Building & Construction

• PVC window and door profiles, skirting boards, cable conduits, guttering, siding
• Rigid and foam PVC panels, WPC co-extruded decking and fencing profiles

Furniture & Interior

• PVC edge banding, decorative profiles, wall panels, ceiling cladding
• Low-VOC, matte/gloss finishes with tight color consistency

Automotive & Electrical

• Trims, sealing strips, wire/cable trunking, flame-retardant conduits
• Impact-modified and heat-stabilized PVC formulations

Packaging & Industrial

• PVC sheet for thermoforming, transparent panels, antistatic housings
• Pelletizing of PVC compounds for downstream molding/extrusion

Technical Specifications

Core Parameters

• Model: SJZ65/132 conical twin-screw extruder
• Screw diameter (small/large): 65/132 mm
• L/D (effective): optimized for PVC processing and stable venting
• Output capacity: 150–350 kg/h depending on formulation, die, and processing window
• Screw speed: 1–45 rpm (typical), high-torque gearbox for continuous duty

Temperature and Control

• Heating zones: 4–6 barrel zones + die zones, independent PID control
• Temperature range: 20–220 °C with ±1 °C stability
• Melt pressure: 0–35 MPa monitoring with interlocks and trend alarms
• HMI/PLC: 10–12″ touchscreen, recipe library, data logging, energy dashboard

Configuration Options

• Screws: universal PVC, high-fill CaCO3, WPC, soft PVC profile, foam PVC
• Feeding: loss-in-weight feeder for dry blend; side feeder for wood powder or fillers
• Filtration: manual/hydraulic screen changer; breaker plate with multi-mesh packs
• Dies & downstream: profile/pipe/sheet dies; vacuum calibration table, haul-off, cutter, stacker or winder; co-extrusion ports
• Surface finish packages: embossing, online thickness/width measurement, corona treatment (sheet)

Power & Utilities

• Main drive power: 37–75 kW (package dependent)
• Heating power: 12–24 kW with insulated barrel covers
• Cooling: air and water circuits; chiller recommended for stable sizing
• Electrical: 380–480 V, 50/60 Hz, 3-phase; CE/UL compliance available

Note: Actual performance depends on resin K-value, stabilizer system, filler content, and die/backpressure. Application-specific screw profiles are provided after material audit.

User Recognition

Customer Feedback Highlights

• “Achieved 22% lower specific energy while improving wall thickness stability on PVC window profiles.”
• “Stable venting and melt pressure control reduced surface defects and scrap on CaCO3-filled conduits.”
• “Recipe recall and quick die change cut changeover time by 30%, boosting daily output.”

Case Studies & Market Performance

• Profile producer increased line speed by 18% and reduced rework by 25% with a high-fill PVC screw set.
• Pipe manufacturer transitioned to recycled PVC blends, maintaining tensile/impact targets with consistent melt temperature.
• WPC decking line reported smoother surface and reduced plate-out after adopting optimized venting and die temperature zoning.

Competitive Advantages

Innovation That Delivers Results

• Conical twin-screw design balances strong intake, high torque, and low melt temperature for superior PVC processing
• Data-driven control with energy and process analytics lowers cost per kilogram and improves repeatability

Reliability and Serviceability

• Bimetallic barrels and hardened screws extend lifetime with abrasive fillers
• Modular downstream integration and intuitive HMI diagnostics minimize downtime and maintenance costs

Summary

The SJZ65/132 Conical Twin-Screw Extruder is a PVC-focused, high-torque extrusion platform that combines gentle processing, stable venting, and precise temperature control. With modular configurations for profiles, pipes, sheets, and WPC, it delivers high output, excellent surface finish, and industry-leading energy efficiency—strengthening your productivity and ROI in competitive markets.