Also specified as: Double Skin Extruded Aluminum Roller Shutter · Thermal Insulated PU Roller Shutter Door
A double-skin extruded aluminum roller shutter with a PU foam core — thermal and acoustic insulation for climate-controlled warehouses, cold rooms and conditioned factories.
Two extruded aluminum skins around a dense PU foam core — the insulated rolling door for temperature-controlled and energy-conscious buildings.
The insulated aluminum roller shutter (double-skin extruded aluminum roller shutter) bonds two extruded aluminum slat skins around a high-density polyurethane foam core. The result is a rolling door that meaningfully reduces heat transfer and airborne noise versus a single-skin curtain — the right choice for climate-controlled warehouses, chilled areas, conditioned manufacturing and any opening where energy loss through the door matters.
The extruded aluminum skins give the panel rigidity and corrosion resistance, while the foam core delivers the thermal and acoustic benefit. RAX manufactures the insulated slats on its auto PU foam panel line, finishes them to any RAL color, and confirms the achievable thermal performance against your opening on the technical layout.
RAX-company facts on this page — materials, 100,000-cycle fatigue testing, certifications held, warranty and lead time — are from RAX Door Technology’s approved brand brief. Industry figures are marked [SOURCED] (with the source) or [ESTIMATE] (industry-typical, not independently verified) in the Basis column and are confirmed against your opening on the technical layout. Fire resistance (EI60/EI120) and wind-load class are project-specific capabilities we test and document per order — never blanket certificates.
Every door is engineered to your opening. The values below are the validated baseline; final figures are confirmed on your specification.
| Parameter | Specification | Basis |
|---|---|---|
| Curtain Construction | Double-skin extruded aluminum slats bonded around a high-density PU foam core. | RAX capability |
| Skin Material | Extruded aluminum alloy 6063-T5; anodized or powder-coated to any RAL color. | RAX capability |
| Foam Core | High-density polyurethane foam, foamed in-house on the RAX auto PU panel line. | RAX capability |
| Thermal Performance | Insulated curtain reduces heat transfer; curtain-only U-value industry-typical ~2.5–4.0 W/m²K [ESTIMATE]. RAX marketing value 0.33 W/m²K pending door-set EN 12428 report. | [ESTIMATE] / RAX marketing |
| Acoustic Benefit | Foam-filled double skin attenuates airborne noise versus single-skin curtains; Rw confirmed per project by test. | Per project |
| Slat Cover Width | ~77 mm / 95 mm insulated industrial profiles [ESTIMATE]. | [ESTIMATE] |
| Drive / Motorization | In-axle tubular motor or RAX servo VFD; sized to the heavier insulated curtain. | RAX capability |
| Wind Resistance | EN 12424 wind classification runs Class 0–5, Class 5 = above 1,000 Pa [SOURCED: EN 12424/12444 wind-load overview]. Rigid double-skin slats typically reach Class 2–4 [ESTIMATE] — RAX class confirmed per model by test. | [SOURCED] / [ESTIMATE] / Per project |
| Fire Rating | EI60 / EI120 capability — tested to EN 1634-1 and classified to EN 13501-2 per project (not a held stock certificate). | Per project |
| Cycle Life | 100,000 cycles validated in the RAX fatigue test lab; report and video ship with the order. Industry context: retail shutters ~10,000-20,000 cycles, industrial high-use shutters ~25,000-100,000+ cycles [ESTIMATE]. | RAX-measured / [ESTIMATE] |
| Safety Devices | Anti-pinch safety edge, bottom air-bag sensor and photo eyes; optional radar, geomagnetic and light-curtain sensing. | RAX capability |
| Operating Temperature | RAX products validated from −30°C cold storage to +50°C desert environments. | RAX-measured |
| Maximum Opening | Custom to your opening — feasible span confirmed by RAX engineers against wind class and drive sizing. | Per project |
| Color / Finish | Full RAL custom (common RAL9006 silver grey, RAL9010 white, RAL7016 dark grey, RAL5010 blue); wood-grain transfer, PVDF coating, anodizing. Surface: flat / ribbed / cassette / orange-peel. | RAX capability |
| Power Supply | 220 V / 380 V, 50/60 Hz — confirmed against the selected operator. | Per project |
| Certification | Held: ISO 9001:2015, CE (EN 13241, EN 12453), SGS material reports, Product Liability Insurance. Per project: fire rating EI60/EI120 (EN 1634-1); AS/NZS 4505 & UL counterpart data. | RAX-held / Per project |
| Order | Custom engineered to your opening, specification and RAL color; from prototype to container-load delivery. | RAX policy |
| Lead Time | Sample 7–15 days; standard container 12–20 days; custom first order 20–35 days, repeat 15–20 days. | RAX-measured |
| Warranty | Door body 2 years; operator/motor 3 years (servo motor 5 years). Free spare parts within warranty (DHL/FedEx 5–7 days). | RAX policy |
Thermal and acoustic performance depend on curtain construction and peripheral sealing; we confirm the achievable U-value and Rw for your door set against EN 12428 / EN 12424 on the technical layout.
Validated substrates, processed in-house on an auto PU foam panel line and CNC punching/bending centre.
Match the door to the opening duty — each card is one line.
Your installers get the full document set before the door ships.
Certificates we hold today, and the project-specific test data we arrange against the matching standard.
Rigorous 100,000-Cycle Fatigue Testing Protocols, Validated Galvanized Steel & Aluminum Alloy Materials, and Precision Servo-Drive Manufacturing — the proof behind every RAX shutter.
Large industrial doors from prototype to container-load delivery.
Every RAX shutter is built to your opening, your RAL color and your duty — from prototype to container-load delivery. Private-label production covers panel color, operator matching, packaging and manual translation, all under strict NDA.
From custom engineering to container-load delivery — the document set your local installers need.
Door body 2-year warranty · operator/motor 3 years (servo motor 5 years) · free spare parts within warranty, dispatched DHL/FedEx 5–7 days.
The double-skin extruded aluminum curtain with a high-density PU foam core meaningfully reduces heat transfer versus a single-skin shutter. A curtain-only U-value is industry-typical around 2.5-4.0 W/m2K [ESTIMATE]; the achieved door-set U-value depends on construction and peripheral sealing, so RAX confirms it against EN 12428 on your technical layout rather than quoting a generic figure.
Yes. The foam-filled double skin attenuates airborne noise compared with a single-skin curtain. The exact sound-reduction (Rw) value depends on mass and sealing, so we confirm it per project by test if acoustic performance is a requirement.
It is well suited to chilled and cool zones and to conditioned warehouses where energy loss matters. For deep-freeze rooms at very low temperatures, ask us about cold-storage door configurations with heated tracks and full peripheral sealing.
We are a pure manufacturer and do not provide on-site installation. Every order ships with an English installation manual, wiring diagrams for your local installation team; operators are pre-set and tested before dispatch.
Held: ISO 9001:2015, CE to EN 13241 (industrial door) and EN 12453 (operator safety), with SGS material reports and Product Liability Insurance. Fire resistance (EI60/EI120) and the wind-load class are project-specific capabilities we test and certify per order against the matching standard – we never overclaim a blanket rating.
Yes. RAL panel colors, operator matching, packaging printing and manual translation (EN/ES/FR/AR/RU) are all supported, from an OEM sample to container-load branded production. Tooling records are archived up to 5 years with no extra tooling fee on repeat orders, all under strict NDA.
Sample 7-15 days; standard container 12-20 days; custom first order 20-35 days (repeat 15-20 days). Door body 2-year warranty, operator/motor 3 years (servo motor 5 years), with spare parts dispatched by DHL/FedEx within warranty.
Factory inspection report (speed, noise, insulation-resistance and visual tests), 100,000-cycle fatigue test video/report, FAI / pre-assembly photos, English installation manual + wiring diagrams, CE Declaration of Conformity with EN 13241 test report, and export packing (steel frame + pearl cotton + stretch film, packing list, traceable batch no.).
Send your opening size and thermal / acoustic target — we reply with an insulated shutter proposal and lead time.
