3-Track Aluminum Door Frame Extrusions

Name: 3-Track Aluminum Door Frame Extrusions | Triple Track Aluminum Door Extrusions | Multi-Track Aluminum Door Section - Frigate
Price: 249.00 USD
Availability: InStock

The 3-Track Aluminum Door Frame Extrusions is manufactured using high-pressure precision dies and CNC-calibrated pullers to pflegen linear tolerances within ±0.08 mm across the full profile length. This high level of dimensional control ensures consistent interface compatibility with sliding mechanisms, gaskets, and panel inserts, which is critical in multi-track assemblies where cumulative tolerance stack-ups lead to performance failures.

Materialien

Manufactured from 6063-T6 aluminum alloy for strength, corrosion resistance, and ease of extrusion.

Surface Finishes

Anodized finishes range from 10-20 microns, ensuring corrosion resistance and durability in varying environments.

Compliance Standards

Meets ASTM B557, ASTM B117 (salt spray), AAMA 2603/2604 standards for durability and performance.

Cross-Section Area (A)

Nominal cross-sectional area of 8.5 cm² per track, optimized for load-bearing capacity and strength.

Mass per Meter (m)

Weighs 1.75 kg per meter, providing efficient material usage without compromising structural integrity.

Product Description

The base material is 6063-T6 aluminum alloy, chosen for its optimale balance of extrudability, corrosion resistance, and structural rigidity. Mechanical properties are strictly maintained with a minimum tensile strength of 190 MPa and yield strength above 160 MPa, verified via batch-wise tensile testing in accordance with ASTM B557. For higher structural loads or larger span assemblies, 6061-T6 variants are also available, offering tensile strength upwards of 260 MPa. The extrusions are solution heat-treated and artificially aged post-extrusion to ensure metallurgical consistency and dimensional stability under cyclic thermal and mechanical stresses.

Moment of Inertia (Ix / Iy)

Ix = 0.56 cm⁴, determining resistance to bending along the x-axis under applied loads. Iy = 0.48 cm⁴, ensuring bending resistance along the y-axis, critical for stability.

Section Modulus (Zx / Zy)

Zx = 0.28 cm³, Zy = 0.24 cm³, optimizing load-bearing and bending capacity in critical directions.

Radius of Gyration (ix / iy)

ix = 2.7 cm, iy = 2.2 cm, ensuring stability and minimizing buckling under applied loads.

Max. Axial Load (Euler Buckling)

Supports 4500 N without buckling for up to 3 meters, ensuring safe operation in large spans.

Max. Load at Slot (Shear Test)

Withstands 1200 N per slot under static load conditions, ensuring slot strength and durability.

Torsional Constant (J)

J = 0.85 cm⁴, contributing to torsional stiffness and resistance to rotational deformation.

Max Torque (Torsional Load Limit)

Supports up to 50 Nm, ensuring torsional strength in frames subject to rotational forces.

Elastic Deflection (100 N Load)

Provides a maximum deflection of 0.5 mm under 100 N load, ensuring minimal deformation.

Dynamic Load Rating

Rated for 2500 cycles at 500 N load, ensuring durability under frequent operational conditions.

Compatibility Tolerance

Maintains ±0.08 mm tolerance for precise interface fit with complementary framing components.

Machining Precision Grade

Achieves ±0.1 mm machining precision, ensuring consistent quality and dimensional accuracy.

Fatigue Life (Slot Edge)

Withstands 2 million cycles at 50 N per slot edge, ensuring long-lasting durability.

Thermal Expansion (ΔL @ ΔT=50°C)

Exhibits thermal expansion of 1.18 mm/m, designed for performance in temperature-variable environments.

Slot Pull-Out Resistance

Slot can resist a static pull-out force of 350 N, ensuring secure attachment for inserts.

Max Load Bearing at Corner Joint

Handles 1800 N per corner joint without failure, ensuring structural integrity in frame assembly.

Technical Advantages

The three-track configuration is designed with independent panel guidance, incorporating tolerance-compensating ribs and anti-rattle interfaces. Track depth, width, and inter-track spacing are standardized to accommodate sliding panels with varying roller base widths and inset depths. Integrated drainage chambers and capillary water diversion routes are machined directly into the base track area to eliminate water pooling and hydrostatic backflow, especially in threshold-level installations. Track lips are chamfered to reduce rolling friction and wear on synthetic and metallic roller interfaces.

Surface finishing is offered via anodization (10–20 microns, AA10/AA20 class) or architectural-grade polyester powder coating (minimum 60 microns DFT), compliant with AAMA 2603/2604 specifications. For high-salinity or acidic industrial atmospheres, additional pre-treatment using chromate conversion or acid etch is applied before coating. Accelerated corrosion testing, including salt spray (ASTM B117, 1000+ hours) and humidity exposure, confirms resistance to pitting, film degradation, and substrate attack. Coating uniformity is verified using magnetic film thickness gauges, and adhesion is tested via crosshatch and impact tests.

Let's Get Started

Need reliable Extrusion for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Applications

Commercial Office Buildings

Provides durable, dimensionally stable door frames for multi-panel sliding systems, optimizing space utilization and reducing mechanical wear under heavy traffic.

Residential Complexes

Ideal for large-span sliding door assemblies, offering thermal stability and corrosion resistance in environments with temperature fluctuations and humidity.

Industrial Facilities

Supports heavy-duty sliding systems, with profiles engineered for load-bearing capacities and resistance to chemical exposure and frequent operational cycles.

Hospitality Sector (Hotels/Resorts)

Enables high-traffic sliding door applications, with precision fabrication for consistent performance and aesthetic alignment over prolonged use.

Healthcare Environments

Used in sliding door systems for sterile areas, offering antimicrobial anodized finishes and compatibility with automated door mechanisms for hygiene control.

Retail and Shopping Malls

Ensures robust and stable door frame structures for frequently used glass panels, preventing deflection or warping from constant environmental changes.

Seal Compatibility and Gasket Integration

The extrusion includes dedicated cavities for gasket placement and EPDM-based seal retention. These channels are precision-cut with serrated flanks to mechanically anchor the seal, maintaining compression set and recovery over extended usage. Profile geometry accommodates co-extruded dual-durometer seals for enhanced air and water barrier performance.

The 3-track assembly is engineered to maintain a maximum allowable mid-span deflection of L/175 under design wind loads, adhering to international façade engineering norms (EN 1999-1-1 / Eurocode 9). Reinforcement zones are embedded into the profile cross-section for localized load bearing—useful in installations with large panel weights or automation mechanisms.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How do the integrated drainage channels in the 3-track extrusion prevent water accumulation?

The extrusion features precision-engineered drainage channels with a minimum cross-sectional area of 2 mm² per track. These channels direct water flow away from the frame base, preventing water pooling or hydrostatic pressure buildup. The channels are aligned with gravity flow paths, ensuring water is effectively diverted to external drainage points, minimizing corrosion risk and improving weather resistance.

What is the impact of thermal expansion on the 3-track aluminum door frame, and how is it managed?

Thermal expansion is controlled through careful alloy selection (6063-T6) and profile design. The aluminum’s coefficient of thermal expansion is approximately 23.6 µm/m·°C, which is factored into the track design by incorporating expansion joints at every 3-meter interval. These joints allow for dimensional growth or contraction without affecting door operation or frame alignment, ensuring smooth panel movement.

How do the corner joints maintain structural integrity in 3-track systems?

The 3-track frame uses mechanically reinforced corner joints with a 90-degree locking mechanism. Each joint is precision-cut and interlocks with a 5 mm overlap, which is then secured with a series of stainless steel inserts and high-strength adhesive bonding. This method ensures consistent load distribution across the frame, preventing joint failure under lateral or torsional stress.

How are surface finish specifications controlled to ensure long-term corrosion resistance?

Surface finishes are controlled by multi-step anodizing or powder coating processes. Anodizing depth is maintained within the range of 10 to 15 microns, providing uniform oxide layers that enhance corrosion resistance. Additionally, pre-anodizing treatments such as chromate conversion are applied to ensure a uniform bond between the substrate and the finish. These treatments are validated through ASTM B117 salt spray testing for durability.

How do the track profiles accommodate different sliding panel weight specifications?

The track profile design includes variable cross-sectional thicknesses at load-bearing points, with thicker sections (up to 4.5 mm) near the roller channels. The 3-track system supports sliding panels up to 150 kg per panel by distributing the load across multiple bearing surfaces and reducing the risk of deflection. FEA simulations are used during the design phase to optimize track thickness for specific weight and load conditions.