



55 mm Thermal-Break Casement Door Aluminium Profile
Products are supplied through qualified partner manufacturers in China. Production capacity is confirmed with the selected manufacturer for each order. Indicative MOQ 1 ton, subject to specification and manufacturer confirmation. Delivery destinations and terms are confirmed against documented order requirements. Project-specific manufacturer authorization and applicable quality and compliance documents are provided with shipment where applicable. Get quote.
Product Overview & Technical Data
Product Overview
Investing in a high-performance casement door aluminium profile ensures long-term durability and smooth daily operation. The reinforced mullions and heavy-duty tracks prevent sagging and resist high wind loads, making it an ideal choice for coastal or high-rise buildings.
Customization and Factory Direct Supply
We offer comprehensive customization services, including precise cutting, punching, and diverse surface treatments like powder coating in standard RAL colors or anodized finishes. Contact our team today to get professional CAD drawings, project quotations, and reliable global shipping.
Supply & Delivery Notes
Contract & Export Entity
Luyu International coordinates the contract, payment, export documents and project delivery.
Manufacturing Arrangement
Approved manufacturers organize production against confirmed drawings, specifications and orders.
Quality & Documents
Manufacturer certificates, test reports, batch inspection and third-party inspection can be arranged.
International Delivery
FOB, CIF and DDP support covers packing, loading, customs declaration and international logistics.
Certificates, test reports and delivery documents are subject to the current project, product model and documents available from the manufacturer.
Technical Data & Specification Review
Published parameters are reference configurations for this series. Final values are subject to approved drawings, manufacturer technical documents, samples and project inspection records.
Wide-opening premium casement door system for balconies, patios and full-height façades. 6063-T5 aluminium extrusion with dual weather-stripping, tandem stainless-steel rollers rated for 400 kg leaf weight per panel.
When designing wide-opening balconies, patios, and luxury architectural facades, choosing the right casement door aluminium profile is crucial for structural stability and smooth operation. The 55 Series heavy-duty system delivers exceptional performance, combining robust engineering with modern aesthetics.
Engineered for demanding residential and commercial applications, the casement door aluminium profile utilizes high-grade 6063-T5 aluminum extrusion. It features a 55 mm frame depth designed to support oversized glass panels while maintaining superior weather resistance.
Key technical specifications include:
| Product code | 55 Series · 55 mm heavy-duty casement door |
| Alloy / temper | EN AW-6063-T5 |
| Wall thickness | 1.8 – 2.4 mm |
| Track configuration | 2-track / 3-track available |
| Max leaf weight | 400 kg per sash (tandem SS304 roller) |
| Max leaf size | 2400 W × 3000 H mm per panel |
| Glazing rebate | 30 mm — accepts 5+9A+5 or laminated up to 25 mm |
| U-value (Uw) | 2.4 – 2.8 W/(m²·K) depending on glass |
| Air / water tightness | EN 12207 Cl.3 · EN 12208 E750 |
| Wind load | C4 per EN 12210 |
| Standard length | 6.00 m |
| Base standards | GB/T 8479 · GB/T 5237 |
Tandem SS304 Roller
Twin stainless-steel bearings rated 400 kg per leaf — smooth operation for the life of the door.
Dual Weather Strip
Wool-pile brush seal + EPDM lip — dust and rain kept out even in coastal environments.
Slim 55 mm Sight-Line
Wide leaves with narrow visible frame — maximises the glass area of the opening.
Anti-Lift Latch
Concealed anti-lift device prevents leaves being lifted off track from the outside.
Soft-Close Option
Optional hydraulic soft-close mechanism at both ends of the track.
ADA Compliant
Zero-threshold sill option for barrier-free access — wheelchair, hotel and airport use.
Send opening dimensions, wind zone and glass preference — we return leaf-weight verified schedule and CIF pricing.
Applications
Other products in this range, and where they have been used
JP140 Unitised Curtain Wall System
JP140 unitised curtain wall profile in 6063-T5, 140 mm mullion depth for high-rise facades.
Aluminium Sun-Shading Louver Profile
Aluminium louver profile with fixed or adjustable blades for facade solar control.
Retractable Aluminium Insect Screen Window Profile
Retractable aluminium insect screen window profile with fibreglass or stainless mesh.
The full range sits under Door & Window Profiles, and the buildings and sites these products have gone into are listed under Domestic Engineering Projects. If none of them is quite your specification, say what is different in the enquiry – most of what we ship is made to a drawing rather than picked off a shelf.
Villa Patios
Full-height terrace doors
Hotel Suites
Balcony to living-room openings
Commercial
Storefronts, restaurants
Balcony
Apartment balcony access
Barrier-Free
Zero-threshold hospital / senior living
Coastal
Sea-front resort projects
Quality Control & Inspection
Certificate registration numbers, report numbers, the standard each sample was tested to and the values actually measured – verifiable with the issuing bodies, and directly comparable with your own specification.
Third-Party Inspection Reports
Abrasion here is a falling-sand wear coefficient and is not comparable with the anodising report’s g/μm figure
| Test item | Standard requires | Measured |
|---|---|---|
| Coating minimum local thickness | ≥ 40 μm | 71 μm |
| Indentation hardness | ≥ 80 | 125.0 |
| Adhesion (dry / wet / boiling water) | grade 0 | grade 0 |
| Abrasion (falling-sand coefficient) | ≥ 0.8 L/μm | 1.3 L/μm |
| Solvent resistance | grade 3 or 4 | grade 4 |
| Tensile strength Rm | ≥ 160 N/mm² | 215 N/mm² |
| Elongation A50mm | ≥ 8 % | 11.0 % |
View full testing, certification and factory-capability information
Composite film = anodic layer plus paint layer, each measured separately
Packing & Delivery
Packing, labels, loading method and delivery documents for 55 mm Thermal-Break Casement Door Aluminium Profile are aligned with the product, transport mode and destination requirements.
Project Sourcing & Export Delivery
Requirement Review
Confirm application, drawings, specifications, quantity, destination and delivery target.
Technical Alignment
Check materials, dimensions, performance, finish and destination-market standards.
Quality Inspection
Arrange samples, production checkpoints, factory or third-party inspection as agreed.
Export Delivery
Align packing, labels, documents, container loading and international logistics.
Request a Quote
Specification review, supplier verification, quality control, export packing and delivery coordination for international projects and professional buyers.
-110x110.png)



