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Home / XPS Foam Board Machine / CO2 Foam XPS Production Line / CO₂ XPS Foam Board Machine

CO₂ XPS Foam Board Machine

CO₂ XPS Foam Board Machine is a complete set of second-stage extrusion equipment adopting supercritical carbon dioxide physical foaming technology. Different from traditional XPS lines using HFC or fluorine-based blowing agents, it uses CO₂ as the primary blowing agent together with auxiliary additives to continuously extrude and form closed-cell polystyrene XPS thermal insulation boards. It is a new-generation XPS production machine complying with global environmental regulations.

The whole line adopts a two-stage extrusion structure: co-rotating twin-screw main extruder + cooling single-screw secondary extruder. PS resin pellets, flame retardants, nucleating agents and other additives are fed by loss-in-weight metering. Materials are melted, plasticized and blended inside the twin-screw barrel. Supercritical CO₂ is injected into the melt under high pressure, fully dissolved and evenly dispersed under high pressure. Then the melt is delivered to the cooling single-screw extruder for precise temperature and pressure stabilization. After extrusion through the flat die, the pressure release triggers foaming expansion. The board goes through shaping, cooling, haul-off, cutting and edge trimming to obtain finished XPS foam boards.

Video Of CO₂ XPS Foam Board Machine

Applicable Panels: CO₂ Foamed XPS Extruded Polystyrene Insulation Boards

- Thickness: 20–120 mm

- Width: 600 / 1200 mm (custom wider size available)

- Density: 25–50 kg/m³

- Application: Building roof insulation, external wall insulation, underfloor heating insulation, road subgrade anti-freezing, cold storage insulation, refrigerated truck bodies, underground engineering moisture-proof insulation, export thermal insulation projects (EU, Southeast Asia, Middle East, etc., compliant with F-Gas regulations)

Key feature: Continuous extrusion, physical closed-cell foaming, zero-fluorine, ultra-low GWP

Main Technical Parameters/Specifications of CO₂ XPS Foam Board Machine

Model	Primary Extruder Screw	Secondary Extruder Screw	Rotating power （kw）	Heating power（kw）	Product Width（mm）	Product Thickness（mm）	Output (KG/H)	Size（mmm）	Weight(T)
CXPS-75/200	75	200	110/90	42/90	600~1200	20~100	300~600	70106	40
CXPS-85/200	85	200	132/90	55/90	600~1200	20~100	350~700	70106	45
CXPS-95/250	95	250	220/160	70/150	600~1200	30~120	500~900	80116	55
CXPS-110/300	110	300	315/200	90/200	600~1200	30~150	600~1200	100116	75

Main Components

1、Multi-component Loss-in-Weight Batching & Vacuum Conveying System

Loss-in-weight feeders accurately meter PS pellets, flame retardants, nucleating agents, color masterbatch, etc. Vacuum closed conveying avoids dust and formula deviation, with automatic recipe storage.

2、Co-rotating Twin-Screw Main Extruder

High-torque modular screw, permanent magnet servo motor drive. It is the core unit for melting, plasticizing, homogeneous mixing and pressure build-up.

3、Supercritical CO₂ High-pressure Injection & Metering System (Core Module)

CO₂ storage tank, booster pump, heat exchanger, high-precision closed-loop flow metering unit and high-pressure injection valve manifold. It stably converts CO₂ into supercritical state and injects quantitatively into melt with real-time pressure and flow regulation.

4、Cooling Single-Screw Extruder (Pressure Stabilizer)

Critical process unit for CO₂ foaming. It cools, stabilizes pressure and homogenizes the CO₂-laden melt to control the critical foaming temperature before die exit, which is the key difference from traditional XPS lines.

5、Hydraulic Non-stop Screen Changer

Filters impurities in melt under high pressure. Automatic screen change without production interruption to keep the die clean and eliminate black spots.

6、XPS Flat Foaming Die

Optimized flow channel for wide foaming extrusion, ensuring uniform transverse thickness distribution and adapting to the expansion characteristics of CO₂ foaming.

7、1. Shaping & Cooling Platform + Haul-off Unit

Vacuum shaping plus spray cooling to stabilize board dimension. Variable-frequency haul-off is synchronized with extrusion speed to control board thickness and flatness.
2.

8、On-line Cutting, Edge Trimming & Scrap Recycling System

Fixed-length cross cutting and side trimming. Trim scraps are crushed on-line and recycled back into production for high raw material utilization.

9、Finished Board Conveyor & Auxiliary Stacking Station

Conveyor, board turnover device and stacking fixtures; automatic packing is optional.

10、PLC + HMI Intelligent Control System

Integrated control for the whole line. Temperature, pressure, CO₂ flow, hauling speed and recipe parameters are displayed centrally. It supports alarm notification, data recording and remote diagnosis.

Production Process

Loss-in-weight raw material proportioning → vacuum feeding into twin-screw extruder for melting and mixing → supercritical CO₂ high-pressure quantitative injection into melt → melt enters cooling single-screw for cooling, pressure stabilization and homogenization → filtration via screen changer → extrusion through flat die, pressure release and foaming → shaping and cooling → hauling → on-line thickness measurement, edge trimming → fixed-length cutting → inspection → stacking and packing; trimmed scraps are crushed and recycled for feeding.

Supply Description

We can supply the core CO₂ injection retrofitting system to upgrade existing XPS lines, or deliver a complete turnkey production line. Custom design according to drawings, voltage adaptation, overseas installation & commissioning, formula technical support are available. Lab trial debugging and flame retardant formula guidance can also be provided.

Samples and Applications

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