PET Sheet Extrusion Line

With increasing demand for sustainable packaging and circular economy solutions, advanced PET sheet extrusion line manufacture technologies now support high percentages of recycled material while maintaining performance and compliance with global standards.

It’s one of the most advanced production lines with matured technology and stability in China. Compared with other same kind equipment, it’s over 30% higher in overall efficiency. This line is suitable for APET, PETG, CPET as well.

PET Sheet Extrusion Line: Related JWELL Extrusion Lines

The PET Sheet Extrusion Line is part of JWELL’s complete extrusion portfolio. Customers evaluating this PET Sheet Extrusion Line also frequently request our rPET Sheet Extrusion Line — Factory Acceptance Test and , which share the same proven screw, die and control platforms. For layout drawings, pricing and lead times, contact JWELL Machinery directly.

🌀 Twin-Screw Vacuum Degassing — ≤5 mbar dual-vent system

⚡ 500–1,200 kg/h Output — model-dependent, scale as you grow

🎯 Thickness Tolerance ±1.5% — servo-adjusted roll gap 0.01mm precision

🔄 Multi-Material Capability — APET, rPET, PETG, PLA on one line

🔧 Siemens PLC + WEG Motors + ABB Inverters — globally sourced components

✅ CE Certified — compliant with EU machinery directives

♻️ Up to 50% rPET Content — sustainability-ready without quality loss

🌍 400+ Global Installations since 2005 — proven track record

See the PET Sheet Line in Production

Single & Twin Screw Extrusion System

The screw and barrel system is the melt-preparation core of the PET sheet line, controlling throughput, melt homogeneity and intrinsic-viscosity stability for downstream calendering.

  • CJWS95 twin-screw: measured output 1500 kg/h on PET sheet; supports crystallizer-free, dryer-free operation, saving up to 30% energy versus single-screw + crystallizer + dryer configurations.
  • JWS150 single-screw: measured output 1700 kg/h; mature, low-cost configuration for dedicated APET/CPET production.
  • Single + twin co-extrusion: supports A-B, A-B-A multilayer structures for skin/core functional PET sheet.
  • 25+ years of screw & barrel engineering experience at JWELL.

Key Specifications

  • Twin-screw output: 1500 kg/h (measured)
  • Single-screw output: 1700 kg/h (measured)
  • Energy saving: up to 30% vs single-screw + crystallizer + dryer
  • Engineering experience: 25+ years

Auto-Adjusting T-Die with Multi-Zone Thermal Control

The T-Die is the sheet-forming heart of the line, distributing melt across the full width with precision thermal uniformity and online-adjustable lips for closed-loop gauge correction.

  • Automatic thickness adjustment: electric or thermal-bolt actuators linked to the online thickness gauge enable real-time die-lip correction.
  • Mirror-polished flow channels reduce melt residence time and degradation, eliminating die lines and gel particles.
  • Multi-zone heating keeps die-lip temperature difference within ±1°C for uniform sheet gauge.
  • Multilayer co-extrusion support for A-B, A-B-A and more complex PET sheet structures.
  • High-strength alloy steel with heat and nitriding treatment — service life 8–10 years.
  • Seamless PLC/HMI integration with JWELL extruder and gauge for one-touch recipe management.

Key Specifications

  • Die-lip temperature difference: < ±1°C
  • Service life: 8–10 years
  • Multilayer structures: A-B, A-B-A
  • Adjustment: Automatic, real-time

J-Type Three-Roll Polishing Calender

The J-type three-roll polishing calender is a sheet-finishing unit that defines final surface quality, gauge uniformity and optical clarity through precision roll-gap and roll-temperature control.

  • Three precision-ground, chrome-plated mirror rolls in vertical, inclined or horizontal layout for varied process recipes.
  • Roll-gap control ±0.01 mm integrated with online gauge for consistent thickness and flatness.
  • Mirror-grade roll surface delivers high-clarity PET sheet free from flow marks, bubbles or crystal spots.
  • Internal spiral water/oil circulation holds roll-surface ΔT within ±1°C, eliminating waviness and internal stress.
  • Independent servo-motor drives per roll with precise tension control prevent wrinkles and edge wandering.
  • Quick-lift center roll and flexible die-to-roll adjustment reduce changeover and cleaning downtime.
  • Modular design supports single-layer or multilayer APET, PETG, RPET and more.

Key Specifications

  • Roll-gap control: ±0.01 mm
  • Roll-surface temperature difference: < ±1°C
  • Drive: Servo, independent per roll
  • Layout: Vertical / inclined / horizontal

Closed-Loop Online Thickness Gauge

The online thickness gauge is a non-contact measurement system that provides real-time, full-width thickness data and closed-loop corrections back to the extruder screw and die-lip bolts.

  • Infrared / laser or beta-ray sensor holds thickness tolerance within ±0.003 mm.
  • Closed-loop feedback to extruder screw speed and die-lip bolts for fully automatic gauge correction.
  • Higher yield, less waste — automatic control reduces operator-induced defects and edge-trim loss.
  • HMI thickness curves with historical export support quality traceability and process optimization.
  • Multi-layer recognition — supports single, double and multilayer co-extruded PET sheet structures.
  • Material savings — accurate gauge control reduces over-extrusion, lowering raw-material consumption.
  • International-brand sensors (NDC, Scantech) for stability, easy maintenance and fast spare-parts availability.

Key Specifications

  • Thickness tolerance: ±0.003 mm (closed-loop)
  • Control: Fully automatic
  • Sensor brands: NDC, Scantech
  • Multilayer recognition: Yes

Inline Double-Sided Silicone Oil Coating

Inline silicone oil coating is an in-line functional coating process that adds release, anti-static or barrier functionality to PET sheet for downstream thermoforming, lamination and electronics applications — without transferring the substrate off-line.

  • Micro-gravure or comma-bar head delivers uniform, streak-free silicone oil layers with no skipping.
  • Single or double-sided coating modules to match release-film, medical or electronics specifications.
  • Multi-zone hot-air dryer ensures rapid curing and complete drying, eliminating tack and blocking.
  • Heat recovery + exhaust treatment reduces energy consumption and VOC emissions for environmental compliance.
  • Inline at the end of the line — no substrate transfer, eliminating contamination and static-charged dust.
  • Optional inline inspection — coating-weight gauge and CCD vision system for traceable quality control.
  • Compatible with APET, PETG and RPET substrates across a broad thickness range.

Key Specifications

  • Coating sides: Single or double
  • Coating head: Gravure / comma-bar
  • Drying: Multi-zone hot air
  • Inline inspection: Optional CCD

4-Station Continuous Winder

The 4-station winder is an uninterrupted reel-changeover system that ensures continuous winding at high line speeds, maintaining tension consistency and clean edges for downstream slitting and converting.

  • Non-stop reel changeover across four winding stations dramatically raises OEE versus single-station designs.
  • Servo + closed-loop tension control automatically adapts to reel-diameter growth, keeping tension constant.
  • Floor-type independent design for flexible integration with any line width and easier plant layout.
  • Center, surface or hybrid winding modes for different sheet thicknesses and end-use applications.
  • Touchscreen automation — automatic length counting, reel changeover, cutting and labeling.
  • Edge position control (EPC) + pressure balance keep rolls neat, wrinkle-free with clean edges.
  • Speeds up to 80–120 m/min and reel diameters up to 1500 mm for high-output PET lines.

Key Specifications

  • Winding speed: 80–120 m/min
  • Reel diameter: up to 1500 mm
  • Tension control: Servo closed-loop
  • Winding modes: Center / surface / hybrid

Complete Line Integration & Smart Control

JWELL’s PLC/HMI integration ties every subsystem — extruder, dryer, die, calender, gauge, coater and winder — into one coordinated control layer for recipe management, traceability and remote diagnostics.

  • Unified PLC/HMI with recipe storage, parameter logging and role-based access for production traceability.
  • International-brand critical components: Siemens, ABB, Schneider for drives and PLC; NDC and Scantech for gauging — ensuring long-term reliability.
  • CE / UL compliance for electrical safety and EMC across global markets.
  • Energy-efficient architecture: twin-screw dryer-free operation saves up to 30% energy versus single-screw + crystallizer + dryer setups.
  • Remote diagnostics-ready — VPN access enables JWELL engineers to support commissioning and troubleshooting across time zones.
  • Operator training included in every FAT, plus on-site commissioning for safe handover.

Key Specifications

  • PLC / HMI: Siemens / ABB
  • Critical components: Schneider, NDC, Scantech
  • Certifications: CE, UL
  • Energy saving: up to 30%

Technical Specifications

Model Options

Parameter Specification
Available Models JWPET-75, JWPET-92, JWPET-120 (screw diameter based)
Screw Diameter Options 52mm / 65mm / 75mm / 92mm
Output Range (model dependent) 500 – 1,200 kg/h

Extruder

Parameter Specification
Extruder Type Co-rotating twin-screw, intermeshing
Screw Diameter (standard) 75 mm
L/D Ratio 36:1
Degassing System Dual-stage vacuum, ≤5 mbar
Barrel Heating Zones 12 zones, independent PID control
Heating Type Ceramic band heaters, mineral-insulated
Drive Motor WEG 250 kW AC
Inverter ABB ACS880 series
Screen Changer Hydraulic, continuous operation

Sheet Specifications

Parameter Specification
Sheet Thickness Range 0.15 – 1.5 mm
Sheet Width 600 – 1,200 mm
Thickness Tolerance ±1.5%
Materials APET, rPET, PETG, PLA
Max rPET Content Up to 50%

Roll Stack

Parameter Specification
Configuration 3-roll horizontal
Roll Diameter 400 mm each
Roll Temperature Control Pressurized water, closed-loop
Temperature Uniformity ±0.5°C across roll face
Roll Gap Adjustment Servo-driven, 0.01 mm precision

Line Performance

Parameter Specification
Max Line Speed 30 m/min
Total Installed Power 320 – 550 kW (model dependent)
Control System Siemens S7-1200 PLC + 12″ HMI
Recipe Storage 20 preset slots

Ancillary Equipment (Optional)

Parameter Specification
Inline Silicon Coating Single-side application
Edge Trim Reclaim Gravimetric, closed-loop, 100% reuse
Gravimetric Blender ±0.5% batch accuracy
Crystallizer + Dryer (rPET) IR preheating + fluidized bed, -50°C dew point

Utilities & Installation

Parameter Specification
Cooling Water 20-30 m³/h at 15-25°C
Compressed Air 0.6-0.8 MPa
Line Dimensions (L×W×H, approx.) 28m × 6m × 5.5m
Certifications CE, ISO 9001

Food-Grade APET / CPET Trays

APET and CPET sheet is the workhorse of bakery, ready-meal, fresh-produce and frozen-food packaging — combining glass-like clarity with food-contact compliance.

Grade

APET (transparent, easy thermoforming); CPET (crystallized, ovenable, heat-resistant up to 220°C).

Performance

  • High clarity >90%, excellent thermoformability.
  • Food-contact compliant: FDA 21 CFR 177.1630 (US) and EU Regulation 10/2011 (EU).

Recommended Configuration

JWS150 single-screw + crystallizer + dryer (APET) or CJWS95 twin-screw dryer-free (CPET); J-type calender with chrome mirror rolls.

End Use

Bakery clamshells, ready-meal trays, fresh-produce punnets, frozen-food packaging, beverage bottle base cups.

Medical & Pharmaceutical Blister Packaging

Medical-grade PETG and APET sheet is a rigid thermoforming substrate that forms the tray and lidding structure of sterile-barrier packaging for medical devices and diagnostic consumables.

Grade

PETG (preferred — high toughness, deep-draw thermoforming); APET for less-demanding medical lidding.

Performance

  • Low extractables; gamma- and EtO-sterilization compatible.
  • ISO 13485-aligned production environment.

Recommended Configuration

Twin-screw dryer-free configuration; J-type calender with mirror rolls; Class 10000 (ISO 7) cleanroom-side handling; optional inline anti-static coating.

End Use

Surgical instrument trays, diagnostic device blister, pharmaceutical secondary packaging, IV-bag port covers.

Electronics & Industrial Blister Packaging

Anti-static and dimensionally-stable APET and PETG sheet protects sensitive electronic components during shipping and shelf life, replacing PVC in most regions.

Grade

APET or PETG with anti-static masterbatch (10⁹–10¹¹ Ω surface resistivity).

Performance

  • Anti-static, ESD-safe, high clarity for visual inspection.
  • RoHS- and REACH-compliant additive package.

Recommended Configuration

Inline double-sided silicone-oil coating for release; optional conductive coating; J-type calender with precise gauge control (±0.003 mm).

End Use

IC tray, PCB blister, consumer-electronics clamshells, display-protection film, label base film.

Sustainable RPET Sheet for Circular Packaging

RPET sheet — made from post-consumer bottle flakes and edge trim — supports brand-owner recycled-content mandates and reduces virgin-PET demand while preserving food-contact compliance when properly processed.

Grade

RPET (post-consumer bottle flakes, edge trim, PCR-content 30%–100%).

Performance

  • FDA 21 CFR 177.1630 + EFSA challenge-test compliant for food contact.
  • Carbon footprint reduction up to 60% vs virgin APET.

Recommended Configuration

Dehumidifying crystallizing dryer + twin-screw extruder with vacuum venting for IV stabilization; IV-loss control <0.05 dL/g; optical-sorting pre-checked flakes.

End Use

Private-label food trays, beverage bottle base cups, sustainable blister clamshells, RPET-content cosmetic and personal-care packaging.

Frequently Asked Questions

What is a PET sheet extrusion line? -

A PET sheet extrusion line is an integrated polymer processing system that converts PET resin into continuous flat sheet through seven coordinated stages — dehumidifying crystallization drying, twin or single-screw extrusion, T-Die forming, three-roll polishing, online thickness gauging, optional silicone oil coating and four-station winding — producing APET, CPET, RPET or PETG sheet for downstream thermoforming, blister packaging and lamination.

What is the difference between APET, CPET, RPET and PETG? +

APET (Amorphous PET) is transparent and glossy, used for food packaging and blister trays. CPET (Crystallized PET) is heat-resistant and ovenable, used for ready-meal trays. RPET (Recycled PET) is made from post-consumer bottle flakes, supporting sustainable packaging. PETG (Glycol-modified PET) has higher toughness and easier thermoforming, used for medical devices and electronics.

What output can a JWELL twin-screw PET extrusion line achieve? +

JWELL’s CJWS95 twin-screw extruder reaches a measured output of 1500 kg/h on PET sheet; the JWS150 single-screw configuration reaches 1700 kg/h. The twin-screw configuration can run without pre-crystallization drying, saving up to 30% energy versus single-screw + crystallizer + dryer setups.

What thickness tolerance does the online thickness gauge control? +

The integrated online thickness gauge — infrared/laser or beta-ray — maintains thickness tolerance within ±0.003 mm through closed-loop feedback to the extruder screw speed and die-lip bolts. The HMI records thickness curves for quality traceability and process optimization.

Which PET applications need silicone oil coating? +

Inline silicone oil coating is typically specified for release film, medical blister sheet, label base film, anti-adhesive protective film and electronic packaging film. JWELL’s coating unit supports both single-sided and double-sided application with gravure or comma-bar heads, hot-air drying and optional CCD inspection.

What certifications does a JWELL PET sheet extrusion line carry? +

JWELL PET sheet extrusion lines comply with CE and UL electrical safety standards. The line is suitable for producing food-contact sheet meeting FDA 21 CFR 177.1630 (US) and EU Regulation 10/2011 (EU) when food-grade raw materials and additives are used. Critical components are sourced from Siemens, ABB, Schneider, NDC and Scantech.

How does JWELL support installation and after-sales globally? +

JWELL operates service centers and subsidiaries across China, Southeast Asia, India, Turkey and Latin America. Each PET line undergoes a Factory Acceptance Test (FAT) at the Suzhou facility before shipment, with on-site commissioning, operator training and a 12-month warranty supported by 48-hour spare-parts dispatch.

What is the lead time for a standard PET sheet extrusion line? +

A standard single-screw PET sheet line typically ships within 90-120 days from order confirmation; a twin-screw or multilayer co-extrusion configuration typically ships within 120-150 days. Engineering review and customized widths, multilayer structures or specialty coating modules may extend the lead time.

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Why Choose Jwell for Your PET Sheet Line

🏭

Factory/Experience

Jwell has manufactured PET sheet extrusion equipment since 2005, accumulating field data from over 400 installed PET lines worldwide. Each new machine generation incorporates refinements validated across hundreds of real production environments — not just lab prototypes.

🔬

Test/Validate

Our Changzhou facility operates a full production-scale PET line for customer trials. Bring your raw materials and target specifications — we run your recipe before you commit. The line delivered to your factory is a proven configuration, eliminating startup risk.

🌍

Service/Support

Factory-trained Jwell engineers based in Brazil, Spain, Mexico, and Shanghai travel to customer sites for installation and operator training. Remote diagnostic support via WeChat/WhatsApp responds within 2 hours. Critical spares ship from Shanghai within 48 hours.

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