Foam Insulation Board Extrusion (XPS Extrusion) Lines

Sunwell Global is a leading manufacturer of XPS Foam Board Extrusion Lines and XPS Extruders, providing advanced solutions for high-quality foam insulation board production. Our tandem foam board extrusion lines are designed for efficient and consistent XPS foam board manufacturing, utilizing CO2 as a blowing agent for environmentally friendly production.

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If you want to learn more, please visit our website Gypsum powder factory.

• High Production Capacity: With output capacities ranging from 250 kg/h to kg/h, our XPS Foam Board Extrusion Lines can produce board thicknesses from 20mm to 200mm and widths from 600mm to mm, meeting diverse market demands.
• Automated Raw Material Handling: Up to 8 raw materials, including flame retardants and nucleating agents, are automatically loaded and blended for a uniform melt. This ensures consistent quality and optimal processing in the primary XPS extruder.
• Precision Blowing Agent Control: CO2, plasticizers, and/or HFC blowing agents are precisely metered using triple-head ATEX-compliant diaphragm pumps with mass flow measurement, ensuring stable foam density and superior board quality.
• Advanced Extrusion Technology: The secondary XPS extruder features a high mixing, low shear screw with a water-cooled bimetallic barrel and motorized valve control to minimize temperature variations. A static mixer and homogenizing tube ensure a uniform melt before entering the chrome-plated flat XPS die, which includes quick opening, fine-tune adjustment bolts, and Teflon guide shoes.
• Efficient Calibration and Cutting Systems: The board calibrator with temperature-controlled plates and robust haul-off system withstands CO2 expansion pressures and includes a fail-safe pneumatic quick opening mechanism. Travel conveyors allow for controlled cooling before edge milling and precise length cutting by a double-blade cross cutter designed for high-speed production.
• Customizable Surface Finishing: Boards can be planed or grooved to meet specific market requirements. After further cooling, edges can be milled into flat surfaces, tongue and groove, or shiplap profiles.
• Fully Automated Stacking and Wrapping: Sunwell Global offers fully automatic board stacking and six-sided product wrapping, with optional features like product printing, soundproofing, and dust extraction for a complete production solution.

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Not sure yet..

http://www.surfersteve.com/polystyrene.htm

In this page there is a link to xps usage in surfboards making .. preatty price for :
$46 for a 8'x4'x3" sheet

I recently built the cuddy roof for my Tolman out of 1" XPS foam with a 1/8" exterior luan skin on either side, making a foam sandwich. The attached pictures show the foam layer and also the upper skin. It also shows the support bows made from 2 layers of 1/2" plywood at the front, middle, and back.

I used 3M's Fastbond 30 water based contact cement. I found this method to be fast, low cost, and strong. The roof is incredibly stiff. The advantage of using contact cement is that no vacuum bagging or clamping is required, only a laminate roller to ensure adequate contact between the foam and the skin as shown.

The sides showing the exposed foam edges will be scraped back 1/2" or so and filled with a wood flour/epoxy filler, then faired and glassed over, reducing shear load on the foam.

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• Cuddy foam layer.JPG

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• Cuddy roof with upper skin.jpg

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• 3M Fastbond 30.pdf

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• Cuddy rolling top skin 3.jpg

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