SJ30 Laboratory Extruder

SJ30 Laboratory Extruder Features

High-Precision Melt Control

• Multi-zone closed-loop temperature control ensures uniform plasticization and consistent melt viscosity
• High-torque, low-noise drive with fine speed resolution stabilizes output at low and medium throughputs
• Optimized screw geometry for conveying, melting, mixing, and optional venting/degassing

Broad Material Compatibility

• Processes PP, PE, PVC, ABS, PET, PA, PC, TPE/TPU, PLA/PBAT, and recycled polymers
• Supports filled and reinforced formulations: glass fiber, talc, CaCO3, flame-retardant systems
• Wear- and corrosion-resistant barrel/screw materials for abrasive or reactive compounds

Modular, Easy-to-Change Design

• Quick-change dies and split-barrel option minimize cleaning time and changeover downtime
• Optional side feeder, screen changer, and gravimetric feeding for precise dosing of fillers and additives
• Integrated data logging of torque, pressure, temperature, and throughput supports DoE and scale-up

Energy-Efficient and Safe

• High-efficiency motor and thermal insulation reduce specific energy consumption
• Multi-level interlocks, over-torque protection, and emergency stop enhance operator safety
• Compact footprint suitable for labs, universities, and pilot extrusion lines

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Applications

Building & Construction

• PVC and WPC profiles, sealing strips, conduits, cable ducts
• UV-stabilized and flame-retardant compounds for outdoor performance

Furniture & Home

• Edge banding, decorative profiles, rigid/flexible PVC formulations
• Color and additive masterbatch trials for surface-critical products

Automotive & Transportation

• Glass fiber reinforced PP/PA, impact-modified materials, low-VOC interior compounds
• Lightweighting development blends and heat-aging validation

Packaging & Consumer Goods

• PET, PCR PET, and barrier material trials (EVOH blends)
• Bio-based resins such as PLA/PBAT for sustainable packaging

Electronics & Industrial

• ESD/antistatic compounds, halogen-free flame-retardant materials
• Engineering plastics for connectors, housings, and wire/cable jacketing

Technical Specifications

Core Parameters

• Screw diameter: 30 mm (SJ30)
• L/D options: 25–36 depending on process window and mixing requirements
• Output capacity: 5–45 kg/h depending on polymer, die resistance, and screw design
• Speed range: 10–220 rpm with high-torque gearbox for smooth low-rate extrusion

Temperature and Pressure

• Barrel heating zones: 4–6 independently controlled zones
• Temperature range: 30–380 °C with ±0.5 °C control accuracy
• Melt pressure monitoring: 0–50 MPa with alarm/overpressure protection

Configuration Options

• Screw types: general-purpose, mixing, barrier, vented, and special shear-control designs
• Feeding: standard volumetric, optional dual gravimetric feeders; side feeder for fillers/fibers
• Filtration: manual or hydraulic screen changer
• Dies & downstream: strand, sheet/tape, tube/profile; air/water cooling; strand or hot-face pelletizer

Power & Utilities

• Drive power: 5.5–11 kW depending on torque package
• Heating power: 5–10 kW with high-efficiency insulation
• Air supply: 0.6 MPa for pneumatic functions
• Electrical: 380–480 V, 50/60 Hz, 3-phase (custom voltages on request)

Note: Actual performance depends on formulation, screw/die selection, and process setup. Configurations can be tailored to specific applications and industry standards.

User Recognition

Customer Feedback Highlights

• “The SJ30 gives production-grade melt stability in a compact footprint—perfect for rapid R&D and DoE.”
• “Quick-change die and split barrel reduced our changeover time by over 30%.”
• “Gravimetric feeding and steady melt pressure improved color consistency and saved material.”

Case Studies & Market Performance

• Specialty compounder increased R&D throughput by 28% using SJ30 with dual gravimetric feeders for masterbatch development.
• Automotive supplier validated GF-PA66 on SJ30 and transferred parameters to a 90 mm production line with minimal adjustments.
• WPC startup achieved 25 kg/h stable pelletizing with consistent strand quality, enabling reliable sampling and faster customer approvals.

Competitive Advantages

Innovation That Scales

• Lab-to-production parameter continuity shortens commissioning time and reduces scale-up risk
• Integrated data acquisition enables traceable optimization across materials and recipes

Lower Total Cost of Ownership

• Efficient power usage and quick-clean design reduce operating costs and downtime
• Hardened wear packages extend service life in abrasive, fiber-filled compounds

Summary

The SJ30 Laboratory Extruder combines precise melt control, broad material compatibility, and modular flexibility to accelerate polymer R&D, compounding, and profile extrusion. Its scalable design, data-driven control, and energy-efficient operation deliver measurable gains in productivity, consistency, and time-to-market.