Extrusion Line System Overview
A complete PP sheet extrusion line typically includes:
- Raw material feeding & mixing system
- Single screw or twin screw extruder
- T-die (sheet forming mold)
- Vacuum calibration table
- Cooling system (water/air cooling)
- Haul-off unit (traction system)
- Cutting machine (automatic length control)
- Stacking system
👉 These components work together to ensure continuous, stable, and high-quality production.


Working Principle
The PP sheet extrusion process follows a continuous thermoplastic forming principle:
- Feeding
Polypropylene raw materials (pellets, recycled PP, additives) are mixed and fed into the extruder - Melting & Plasticizing
The material is heated and melted inside the extruder through screw rotation and heating zones - Extrusion Forming
The molten polymer is pushed through a die to form a sheet profile - Corrugated Structure Formation
The sheet passes through a forming system to create a hollow corrugated structure - Cooling & Shaping
Vacuum calibration and cooling ensure dimensional stability - Haul-off & Cutting
The sheet is pulled and cut into required sizes automatically
👉 This continuous process ensures high output and consistent quality.
Product Features
🔹 High Efficiency Production
- Continuous extrusion process with stable output
- High-speed production improves ROI
🔹 Lightweight & High Strength
- Corrugated structure provides high rigidity with low weight
- Reduces material consumption
🔹 Excellent Chemical Resistance
- Resistant to acids, alkalis, and corrosion
- Suitable for harsh environments
🔹 Energy Saving Design
- Optimized screw and heating system reduce energy consumption
🔹 Easy Operation
- PLC automatic control system
- Touch screen interface
🔹 Eco-Friendly & Recyclable
- 100% recyclable PP material
- Supports sustainable manufacturing
Application Scenarios
PP corrugated sheets produced by this machine are widely used in:
📦 Packaging Industry
- Turnover boxes
- Protective packaging
- Pallet layers
🏗 Construction Industry
- Floor protection boards
- Formwork panels
📢 Advertising Industry
- Sign boards
- Display panels
🚗 Automotive Industry
- Interior panels
- Protective partitions
🧊 Logistics & Storage
- Warehouse separators
- Reusable containers
👉 PP sheets are increasingly replacing traditional materials due to their durability and recyclability.
Production Process Description
Raw Material Mixing → Feeding → Extrusion → Sheet Forming → Cooling → Cutting → Stacking
👉 Fully automated process ensures high efficiency and minimal labor cost






Technical Parameters
| Model | Sheet Width (mm) | Output (kg/h) | Extruder | Motor Power (kW) |
|---|---|---|---|---|
| 1400 | 1250 | 170–190 | 110/36 | 75–90 |
| 1860 | 1700 | 190–250 | 120/36 | 90–110 |
| 2300 | 2150 | 260–300 | 120/36 | 110–132 |
| 2600 | 2450 | 300–350 | 120/36 | 132–160 |
| 3000 | 2800 | 400–450 | 150/36 | 132–185 |
👉 Data can be customized based on production requirements
Why This System Is Designed This Way
This PP sheet extrusion line is engineered to balance:
- High production efficiency
- Stable product quality
- Energy-saving operation
- Flexible customization
The corrugated structure design reduces material usage while maintaining strength, making it ideal for cost-sensitive industrial applications.
Solution Composition
- Extruder system
- Die head system
- Calibration & cooling system
- Haul-off & cutting system
- Control system (PLC)
- Auxiliary equipment (air compressor, chiller)
FAQ
Q1: What material is used in PP sheet extrusion?
A: Mainly polypropylene (PP), with optional additives for performance improvement.
Q2: What is the output capacity?
A: Typically 170–450 kg/h depending on model and configuration.
Q3: Can recycled material be used?
A: Yes, recycled PP can be used to reduce cost.
Q4: Is customization available?
A: Yes, width, thickness, and capacity can be customized.
Q5: What industries use PP corrugated sheets?
A: Packaging, construction, advertising, automotive, and logistics industries.



