PET Blister Sheet Production Line PET Thermoforming Sheet Extrusion Machine Single Screw

Gwell PET Blister Sheet Production Line is company's strategic continuous improvement model. As to this equipment, company adopts the special sales model to ensure the first market share, the lowest price for the same parameter configuration, and the first echelon of PET industry for continuous technology upgrading. The raw materials can be APET, PETG, RPET, etc.

1. Specification of PET Blister Sheet Production Line and PET Thermoforming Sheet Extrusion Machine:

(1) Single screw production line for PET sheet: single screw extrusion production line for PET Blister Sheet Production Line is the most mature project with the most stable production at present. Generally, single extruder production line or twin-extruder production line is adopted and Gwell uses the latest technology to increase the general efficiency by 30%.The transparency of PET sheet can reach optical level.

However, this model has very high requirements for raw material processing, and the PET raw material needs to be crystallized and dried. This can ensure that the produced PET Blister Sheet Production Line has no crystal points, whiteness, and poor transparency.

The main features of PET Blister Sheet Production Line: impact resistance, excellent processability, good chemical resistance, and good insulation.

(2) PET Blister Sheet Production Line PET Thermoforming Sheet Extrusion Machine: APET, PETG, CPET sheet single-screw exhaust PET Thermoforming Sheet Extrusion Machine is improved from the PET Thermoforming Sheet Extrusion Machine, which increases the exhaust function, Make the material in the screw barrel easier to remove the gas and excess water in the material. This equipment is not very strict on raw material processing. It only needs to crystallize the raw materials without drying. The quality of the products produced is also very good.

PET (Polyethylene terephthalate) extrusion line is a specialized production line used for manufacturing PET films and sheets. PET is a versatile thermoplastic polymer known for its excellent combination of mechanical, thermal, and chemical properties. It is widely used in industries such as packaging, textiles, automotive, and electrical.

1. High-quality extrusion: The PET extrusion line is equipped with a high-performance extruder that ensures efficient and uniform melting and extrusion of the PET resin. This results in excellent film quality and consistency.

2. Precise temperature control: The extrusion line features an advanced temperature control system that allows precise adjustment of the heating and cooling zones. This ensures optimal processing conditions, resulting in films with consistent properties and thickness.

3. Multi-layer film capability: The PET extrusion line enables the production of multi-layer films with different functionalities. By incorporating multiple extruders and co-extrusion technology, it is possible to produce films with enhanced barrier properties, improved strength, or specialized surface properties.

4. Versatile film width and thickness: The PET extrusion line offers flexibility in producing films with various widths and thicknesses according to customer requirements. It can accommodate a wide range of film sizes, from thin gauge films used for packaging to thicker sheets used for industrial applications.

5. Efficient cooling and stretching system: The extrusion line includes a precise cooling and stretching system that ensures controlled cooling and precise stretching of the molten PET film to achieve the desired thickness and properties. This system helps maintain dimensional stability and control orientation.

6. Surface treatment options: The PET extrusion line can be equipped with additional surface treatment options such as corona treatment or plasma treatment. These treatments enhance the adhesion of inks, coatings, or adhesives to the PET film, enabling better printability, laminating, or bonding properties.

7. Inline quality control: The extrusion line incorporates inline monitoring and control systems for key parameters such as film thickness, transparency, and surface defects. This ensures consistent film quality and allows for real-time adjustments and troubleshooting during production.

8. Energy efficiency: The PET extrusion line is designed with energy-efficient components and technologies to minimize energy consumption and reduce operating costs. It utilizes advanced heat recovery systems and optimized heating and cooling processes.

9. Automation and advanced controls: The PET extrusion line is equipped with modern automation and control systems, including PLC touch screens and advanced control algorithms. This facilitates easy operation, monitoring, and adjustments for efficient production.

10. Sustainable production: PET extrusion lines can be designed to incorporate recycling or reclaiming systems, enabling the use of recycled PET material and contributing to a more sustainable production process.

The PET extrusion line offers reliable and efficient production of high-quality PET films and sheets, meeting the diverse needs of industries requiring PET-based materials.

High-Efficiency PET Sheet Extrusion Line: Technical Guide & Market Advantage

With the global shift toward eco-friendly packaging, high transparency, and recyclable materials, Polyethylene Terephthalate (PET) sheets have become the gold standard in thermoforming, food packaging, electronics, and industrial applications.

To help plastics manufacturers, packaging converters, and industrial producers optimize their manufacturing investments, this guide covers the fundamentals of PET sheet technology, equipment components, applications, and the competitive advantages of the GWELL PET Sheet Extrusion Line.

1. What is a PET Sheet Extrusion Line?

A PET sheet extrusion line is an automated industrial manufacturing system designed to continuously melt, plasticize, degas, extrude, calendar, cool, and wind high-quality flat PET plastic sheets.

Because PET resin is inherently hygroscopic (absorbs moisture from air), traditional extrusion processes require energy-intensive pre-crystallization and dehumidifying drying steps to prevent thermal hydrolysis during melting. Modern advanced systems, such as GWELL's twin-screw venting and planetary multi-screw extrusion lines, eliminate the need for drying by utilizing high-vacuum degassing technology, significantly streamlining production and lowering operational costs.

GWELL offers four primary machinery configurations tailored to specific operational requirements:

Single-Screw Extrusion Line: Traditional setup with dedicated crystallization and dehumidification drying hopper.
Single-Screw Exhaust Extrusion Line: Integrated venting design for improved gas removal.
Twin-Screw Venting Extrusion Line (Non-Crystallization / Non-Drying): High-efficiency system capable of processing 100% bottle flakes (RPET) or virgin pellets directly.
Planetary Multi-Screw Exhaust Extrusion Line: Ultra-high output system maximizing melt homogenizing and surface-area vacuum contact.

2. What is a PET Sheet?

A PET sheet is a thermoplastic sheet material produced from Polyethylene Terephthalate polymer. Renowned for its optical clarity, chemical resistance, high mechanical strength, and 100% recyclability, PET is one of the most widely processed sheet materials worldwide.

Common Variations of PET Sheets

PET Type	Full Name	Primary Characteristics	Key Use Cases
APET	Amorphous PET	Uncrystallized, high transparency, exceptional toughness, food-grade safe.	Cold food containers, blister packs, clamshells.
PETG	Glycol-Modified PET	High impact resistance, easy to heat-seal, ideal for thick sheet extrusion (up to several mm).	Decorative films, credit cards, medical trays, furniture laminates.
RPET	Recycled PET	Made from post-consumer recycled PET bottle flakes; environmentally sustainable.	Eco-friendly thermoforming, seedling trays, general packaging.
CPET	Crystallized PET	Heat resistant up to $200^circtext{C}$ to $220^circtext{C}$ ; opaque/white appearance.	Ovenable food trays, microwaveable ready-meal containers.
GAG	PETG / APET / PETG	3-layer composite sheet combining PETG's low-temperature sealability with APET's core economy.	High-end blister packaging, credit cards, decorative laminates.

3. Applications of PET Sheets

Thanks to its physical strength, gas barrier properties, and optical clarity, PET sheets are thermoformed or fabricated into products across several global industries:

Food & Beverage Packaging

Produce & Fruit Containers: Clear hinged clamshells, berries/grape punnets, and bakery boxes.
Thermoformed Cups & Lids: Cold drink cups, deli containers, and portion cups.
Agricultural Seedling Trays: Durable RPET trays engineered for automated planting systems.

Electronics & Hardware Packaging

Anti-Static & Conductive Trays: Precision-molded trays protecting semiconductors, printed circuit boards (PCBs), and sensitive electronic components.
Display Blister Clamshells: High-clarity hardware and consumer goods packaging.

Medical & Pharmaceutical Packaging

Sterile Device Trays: APET/PETG trays requiring low particulate contamination and high impact strength.
Unit-Dose Blister Covers: Moisture- and dust-resistant pharmaceutical packaging.

Decorative, Furniture & Printing Industries

Surface Laminates: High-gloss or matte PETG films applied onto MDF/particleboard for modern kitchen cabinets and furniture.
Printing & Folding Boxes: Clear folding boxes, face shields, and architectural protective panels.

4. What Does a PET Sheet Extrusion Line Contain?

A complete, automated GWELL PET Sheet Extrusion Line consists of integrated precision modules designed for continuous, high-speed output:

Raw Material Handling & Dosing System: Multi-component gravimetric dosing units for accurate proportioning of virgin PET pellets, RPET bottle flakes, masterbatch, and anti-block additives.
Main Extruder Unit:
- Single-screw system with dedicated dehumidifying dryer hopper, OR
- Co-rotating twin-screw / planetary extruder equipped with multi-vent vacuum ports.
High-Vacuum Degassing System:
- High-capacity Roots rotary vane pump system capable of achieving high vacuum levels (up to $10text{ Pa}$ ).
- Rapidly extracts moisture, volatiles, and monomer residues from molten PET without pre-drying.
Melt Metering Pump & Screen Changer:
- High-pressure gear pump ensures pulseless melt delivery to the die.
- Continuous hydraulic double-piston or back-flush screen changer enables filter changes without stopping production.
Multi-Layer Co-Extrusion Feedblock & T-Die:
- Precision co-extrusion distributor (A/B/A, A/B, or GAG layer structures).
- Streamlined, coat-hanger T-die with flexible die lip for exact sheet width and thickness control.
Three-Roll Calender Stack (Calendering Unit):
- Heavy-duty vertical, inclined, or horizontal 3-roller arrangement with independent oil or water temperature control channels.
- Ensures rapid cooling below the crystallization window ( $100^circtext{C}$ – $180^circtext{C}$ ) to guarantee high transparency.
Cooling Bracket, Edge Trimmer & Online Crusher:
- Air cooling roller rack, online edge-cutting knives, and immediate edge trim recycling unit fed directly back into the extruder hopper.
Online Thickness Gauge: X-ray or optical thickness scanning system providing real-time feedback to the T-die lip.
Dual-Station Winding System: Servo-driven friction or turret winder supporting automatic roll swapping and precise tension control.
Central PLC Control System: Integrated Sie mens PLC interface providing one-key line speed acceleration, recipe storage, and remote diagnostic access.

5. Key Advantages of GWELL PET Sheet Extrusion Lines vs. Competitors

When compared with standard industry suppliers, CHINA GWELL (金韦尔机械) delivers engineered advantages in energy conservation, material flexibility, and operational intelligence:

1. Superior No-Crystallization & Non-Drying Technology

GWELL Advantage: Utilizing a custom co-rotating twin-screw or planetary screw design with a high-degree vacuum system ( $10text{ Pa}$ ), GWELL lines process 100% bottle flakes (RPET) or virgin PET directly without pre-drying.
Competitor Gap: Traditional single-screw lines require 3 to 4 hours of pre-crystallization and dehumidification drying, consuming immense electrical energy and risking material discoloration.

2. Up to 35% Lower Energy Consumption Per Ton

GWELL Advantage: By eliminating drying towers and combining direct-drive motors with high-efficiency barrel heating, GWELL machinery cuts energy consumption to industry-leading levels per ton of output.

3. Excellent Raw Material Adaptability (100% RPET Compatibility)

GWELL Advantage: The specialized screw geometry handles mixed intrinsic viscosity (IV) raw materials, such as crushed post-consumer bottle flakes, without compromising sheet clarity or tensile strength.

4. Advanced Servo Control & One-Touch Line Synchronization

GWELL Advantage: Fully synchronized servo drives across the extruder, gear pump, 3-roll stack, traction unit, and winder allow operators to accelerate or decelerate the entire line with a single button while maintaining consistent sheet thickness.

5. High Capacities & Flexible Layer Customization

GWELL Advantage: Production capacities reach up to $1,500text{ kg/h}$ with widths up to $1,800text{ mm}$ . GWELL provides multi-layer co-extrusion technology (such as ABA for high-ratio recycled cores or GAG for decorative films) with European-standard layer distributors.

Contact Our Experts Today!
Max:salem@gwell.cn | +86 15906227399
Liam: saled@gwell.cn | +86 15906224102

Brand Name:	GWELL
Model Number:	GWP75/GWP85/GWP95130
MOQ:	1 set
Price:	Negotiable
Delivery Time:	90 days after all the technical requirements are confirmed
Payment Terms:	L/C, T/T

Type of machine	GWP75	GWP85	GWP95
Width of product	600mm - 800mm	800mm - 1200mm	1000mm - 1500mm
Thickness of product	0.15mm - 2mm	0.15mm - 2mm	0.15mm - 2mm
Output	450-600KG/H	600KG/H - 800KG/H	800KG/H - 1200KG/H

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