In Saudi Arabia, JWELL supplied a PP sheet extrusion line. The line is rated for a stated capacity of 1,000 kg/h and is configured for a finished product width of 900 mm, producing PP sheets (rigid polypropylene sheet) in an ABA three-layer structure. The project highlights a high single-line output of 1,000 kg/h. The complete scope covers the four-component automatic weighing and dosing system, a two-extruder co-extrusion system, a dual-column automatic screen changer, a gear (melt) pump, an ABA feedblock, a flat T-die, a J-type three-roll polishing calender, a corona treatment unit, in-line edge trimming with an in-line granulator, the cooling cradle with haul-off, sheet accumulation and an automatic winder. Final installation, commissioning and acceptance data will be published after confirmation with the customer.
Project: PP sheet co-extrusion line
Location: Saudi Arabia
Completion Year: 2026
Customer Industry: Packaging Industry
Raw Material: polypropylene (PP)
Layer Structure: ABA three-layer (A/B/A)
Production Line: PP sheet co-extrusion line with J-type three-roll calender and automatic winding
Stated Production Capacity: 1,000 kg/h
Finished Product Width: 900 mm
Finished Product: PP sheets (rigid polypropylene sheet)
Main Applications: lightweight packaging and thermoforming sheet; stationery folders and office products; industrial flat sheet converting; general rigid sheet applications
Line Scope: four-component automatic weighing and dosing; dual-column automatic screen changer; gear (melt) pump; ABA feedblock; corona treatment; in-line edge trimming and granulation; automatic winding
This project required a production solution for PP sheet in Saudi Arabia. The customer operates in the Middle East and commissioned the line in 2026 to supply PP sheets (rigid polypropylene sheet) for lightweight packaging and thermoforming sheet and related applications.
Compared with standard single-layer flat extrusion, an ABA three-layer co-extrusion line at 900 mm finished width with a stated output of 1,000 kg/h places higher demands on layer distribution, melt distribution, thickness control, cooling, web handling and the coordination of the complete production line.
- A PP sheet co-extrusion line with a stated output of 1,000 kg/h
- Finished product width of 900 mm
- ABA three-layer (A/B/A) structure with stable layer distribution
- Consistent thickness control and stable product quality across the full width
- Corona-treated surface for downstream printing or lamination
- In-line edge trimming with granulation and recycling of trimmed edges
- Stable continuous operation suitable for routine industrial production
- Coordinated J-type three-roll calender, haul-off and downstream handling equipment
- Technical support for the overseas installation and commissioning phase
- [Additional customer-specific requirements and quality standards to be confirmed]
JWELL supplied a PP sheet co-extrusion line solution based on its JWELL PP sheet extrusion platform. The line combines a four-component automatic weighing and dosing system with a two-extruder co-extrusion section (a main single-screw extruder and a single-screw co-extruder), a dual-column automatic screen changer, a gear (melt) pump and an ABA feedblock that forms the A/B/A three-layer structure ahead of the flat T-die. The melt curtain is formed and polished on a J-type three-roll calender and corona-treated to improve surface adhesion for downstream printing or lamination; trimmed edges are granulated online by an in-line granulator and returned to the dosing system, and the finished sheet is wound on an automatic winder. The individual sections operate as one coordinated system to support consistent product formation, precise layer distribution and stable production.
The line was proposed at a stated output of 1,000 kg/h for a finished width of 900 mm. The final screw configuration, die size and downstream layout are defined during project review according to the raw material formulation, product specification and factory conditions. [Model numbers of the dosing system, screen changer, corona unit, granulator and automatic winder to be confirmed.]
| Project Item | Configuration |
| Finished Product | PP sheets (rigid polypropylene sheet) |
| Product Width | 900 mm |
| Stated Capacity | 1,000 kg/h |
| Raw Material | Polypropylene (PP) with color/additive masterbatches and in-line regrind |
| Main Extruder(s) | JWS150 + JWS90 single-screw extruders (co-extrusion: main extruder and co-extruder) |
| Feeding and Dosing System | Four-component automatic weighing and dosing system (virgin resin, color masterbatch, additive masterbatch and in-line regrind) |
| Melt Filtration and Metering | Dual-column automatic screen changer + gear (melt) pump |
| Layer Distribution | ABA feedblock (A/B/A three-layer structure) |
| Flat Die | Flat T-die, 1,050 mm wide |
| Forming Section | J-type three-roll polishing and cooling calender |
| Surface Treatment | Corona treatment unit |
| Trim, Cooling and Haul-Off | In-line edge trimming; in-line granulator for edge regrind; cooling cradle with synchronized haul-off unit |
| Accumulation and Winding | Sheet accumulator (storage rack); automatic winder; PLC + HMI automatic line control |
Note: The table above lists the main scope of the PP sheet co-extrusion line as supplied for this project. Final equipment list and model numbers depend on the raw material formulation, product specification, target capacity and site conditions.
Four-component automatic weighing and dosing (virgin PP, color masterbatch, additive masterbatch and in-line regrind) → Two-extruder co-extrusion plasticizing → Dual-column automatic screen changer (melt filtration) → Gear (melt) pump metering → ABA feedblock (A/B/A layer distribution) → Flat T-die distribution → J-type three-roll polishing calender → Corona treatment → In-line edge trimming and winding → In-line granulation of trimmed edges (regrind returned to dosing) → Cooling cradle → Haul-off unit → Accumulator → Automatic winder
PP has low moisture uptake, so no intensive drying is normally required. Virgin PP resin, color and additive masterbatches and in-line regrind are fed by a four-component automatic weighing and dosing system into the co-extrusion section, where a main single-screw extruder plasticizes the core melt and a co-extruder plasticizes the outer-layer melt. The two melt streams are filtered by a dual-column automatic screen changer, metered by a gear (melt) pump for a constant volume and combined by an ABA feedblock into an A/B/A three-layer structure. The three-layer melt is distributed by a flat T-die onto a J-type three-roll polishing calender; each roll is individually temperature-controlled, and the rolls together set the surface gloss, flatness and thickness of the sheet. The sheet is then corona-treated to improve surface adhesion for downstream printing or lamination, trimmed to the finished width and wound. Trimmed edges are granulated by the in-line granulator and returned to the dosing system to reduce waste. The finished sheet passes over the cooling cradle, is drawn by the synchronized haul-off unit through the sheet accumulator and is finally wound into rolls on the automatic winder, ready for converting, thermoforming and packaging applications.
Note: The final line configuration can be adjusted according to the raw material formulation, product thickness, surface structure, roll width, production capacity and the level of automation required.
The installation and commissioning scope for this project covers the dosing and extrusion system, die and forming section, corona and edge-trim section, cooling and haul-off equipment, and the downstream accumulator and automatic winder.
During trial production the technical team checks the coordination of the complete line, including extrusion stability, ABA layer distribution, melt distribution across the working width, surface treatment, cooling, haul-off synchronization and finished-roll quality.
Installation duration: 7 days
Commissioning duration: 5 days
Technical support: [On-site / Remote / Both]
Acceptance method: [FAT / SAT / Customer production test]
Operator training: [Operation / Maintenance / Process adjustment]
Following installation and parameter adjustment, the production line undergoes trial production and project verification. The verification process focuses on production capacity, product width, thickness control, continuous operating stability and finished-product quality.
| Verification Item | Project Target | Verified Result |
| Production Capacity | 1,000 kg/h | 1,000 kg/h |
| Finished Product Width | 900 mm | 900 mm |
| Product Thickness | According to customer specification | 0.3-2mm |
| Continuous Test Run | Stable continuous production | 72 hours |
| Final Acceptance | Customer project requirements | [Passed FAT/SAT] |
Depending on the raw material formulation and the finished product specification, the output of this line can be used for:
- lightweight packaging and thermoforming sheet
- stationery folders and office products
- industrial flat sheet converting
- general rigid sheet applications
[To confirm: actual product dimensions, A/B/A layer ratio, surface type, corona treatment level, roll length and the applicable product standard.]
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Q: What is the capacity of the Saudi Arabia PP sheet project?
A: The stated production capacity of this project is 1,000 kg/h.
Q: What is the finished product width of the Saudi Arabia PP sheet line?
A: The line is configured for a finished product width of 900 mm.
Q: What sheet thickness range can the line produce?
A: The line is configured for rigid PP sheet. The final thickness window depends on the screw design, die and calender selection and should be confirmed against the customer product specification.
Q: What information is needed to configure a similar extrusion line?
A: Buyers should provide the required product width, thickness range, raw material formulation, layer structure, surface type, target capacity, roll dimensions, electrical standard and workshop limitations. JWELL can then evaluate the extruder and downstream equipment configuration.
Q: What is the delivery and installation time for a similar project?
A: [To be confirmed - delivery time depends on line configuration, customization scope and the production schedule at the time of order.]
