The Hollow Chamber Thermal Break Strip offered by Jinxing in China is designed for aluminum profiles where the thermal break section incorporates one or more enclosed chambers. The chamber structure separates the aluminum sections while adding a longer path for heat transfer through the profile assembly.
Jinxing produces the profile through extrusion and can develop the section according to the customer's aluminum profile drawing. Cross-sectional dimensions, tooling, color, length and supply format can be confirmed according to the final profile design.
Because the exact hollow chamber geometry varies by profile design, the following information should be confirmed for each project:
|
Parameter |
Specification |
|
Material |
PA66 GF25 |
|
Profile Type |
Hollow Chamber Thermal Break Strip |
|
Cross-Section |
Customized according to aluminum profile |
|
Width / Height |
According to drawing |
|
Chamber Geometry |
According to profile design |
|
Color |
According to order requirements |
|
Supply Form |
Straight or coil |
|
Length |
According to order requirements |
|
Tooling |
Existing or newly developed according to section |
|
Processing |
Cut-to-length and other agreed processing |
A hollow chamber thermal break strip is a polyamide insulating profile with enclosed internal space within its cross-section. It is installed between separated aluminum sections to reduce direct heat transfer through the metal frame.
The hollow structure is part of the profile geometry rather than a separate insulating component. Therefore, the chamber layout, outer dimensions and contact areas need to match the receiving aluminum profile.
· PA66 GF25 Material – Polyamide 66 reinforced with 25% glass fiber.
· Hollow Chamber Structure – Enclosed chambers form part of the insulating cross-section.
· Extruded Profile – Continuous extrusion allows the required section geometry to be produced through dedicated tooling.
· Profile Matching – Dimensions and chamber geometry can be developed around the aluminum profile.
· Flexible Supply – Straight or coil supply can be considered according to the production process.
The hollow chamber changes the geometry of the insulating section and can increase the distance that heat must travel through the thermal break area. This makes the structure relevant when the aluminum profile design requires more than a simple solid insulating section.
The actual thermal performance, however, is determined by the complete aluminum profile assembly, including the aluminum geometry, thermal break dimensions, glazing or panel configuration and installation conditions. The strip should therefore be selected as part of the complete profile system rather than as an isolated component.
Used in thermally insulated aluminum window and door systems where the profile design calls for a chambered thermal break section.
Suitable for selected curtain wall profiles requiring a defined insulating section between aluminum components.
The hollow chamber structure can be considered for profile designs where cross-section geometry and thermal-break depth need to be coordinated with the aluminum extrusion.
The thermal break section can be developed together with a new aluminum profile so that the chamber geometry and receiving section are reviewed before tooling.
The choice between a hollow chamber and a simpler solid section should be based on the aluminum profile design rather than assuming one structure is universally better.
|
Selection Point |
Hollow Chamber Section |
Simple Solid Section |
|
Cross-section |
Includes one or more enclosed chambers |
Generally simpler solid geometry |
|
Thermal path |
Chamber geometry can increase the heat-transfer path |
Depends mainly on strip thickness and overall section |
|
Profile integration |
Requires matching of chamber and receiving geometry |
Often simpler where the receiving section is less complex |
|
Development |
Suitable for dedicated profile designs |
Suitable for simpler standard sections |
The final choice should be based on the aluminum profile drawing, required thermal-break geometry and fabrication process.
Jinxing forms hollow chamber profiles through extrusion using tooling matched to the required cross-section.
The main production stages include:
· Material preparation – PA66 and GF25 are prepared according to the confirmed material formulation.
· Profile extrusion – The material is formed continuously through dedicated tooling.
· Cooling and sizing – The section is stabilized to maintain the required geometry.
· Inspection and finishing – The finished profile is checked before straight or coil supply.
For special sections, tooling requirements should be confirmed from the complete aluminum profile drawing before production.
Jinxing controls the main stages of material preparation, extrusion, cooling, sizing, inspection, and finishing.
Key external dimensions and relevant chamber geometry are checked against the confirmed product specification.
Incoming PA66 and glass fiber materials are inspected according to the company's material-control procedures, while extrusion and cooling conditions are monitored during production.
According to applicable product and testing requirements, laboratory evaluation can cover density, Shore hardness, longitudinal and transverse tensile strength, water resistance, thermal aging, and coefficient of linear expansion.
Finished profiles are checked for appearance and dimensions before shipment, with relevant inspection documentation provided according to the agreed order requirements.
For hollow chamber thermal break profiles, the main value is not simply the material or the chamber itself. The section needs to match the aluminum profile throughout insertion and subsequent processing.
Jinxing supports this process through:
· PA66 GF25 profile extrusion
· Drawing-based section development
· Dedicated tooling for special profiles
· Straight and coil supply options
· Color and dimensional customization
· Profile inspection before shipment
This approach allows the thermal break section to be considered together with the aluminum profile rather than selected independently.
The chamber changes the geometry of the insulating section and can increase the heat-transfer path through the thermal break area. Its actual contribution depends on the complete aluminum profile design.
Not necessarily. The appropriate section depends on the aluminum profile geometry, thermal-break requirements and fabrication process. A hollow chamber profile should be selected when its cross-section matches the intended system.
Yes. Jinxing can review customer drawings and develop the required cross-section and tooling for applicable hollow chamber profiles.
The aluminum profile cross-section drawing, required thermal break dimensions, chamber geometry, color, length, supply form, packaging and processing requirements are useful for confirming the product.
Coil supply can be considered for applicable profiles and production processes. The coil specification should be confirmed according to the profile geometry and customer's processing equipment.
The profile is made from PA66 nylon reinforced with 25% glass fiber (GF25).
Yes. Cross-sectional dimensions and applicable colors can be customized according to the confirmed profile requirements and production conditions.
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