# LINKEDALU METAL

> LINKEDALU METAL (Linkedalu Metal Group Co., Ltd) is a custom aluminum extrusion manufacturer in Xiamen, China. This site documents its architectural, industrial and standard aluminum profile ranges, technical parameters, finishes and fabrication services.

Canonical site: https://www.linkedalu.com/
Company: Linkedalu Metal Group Co., Ltd (Xiamen, China, since 2006)
Contact: sales@linkedalu.com · +86-18965152501
Capabilities: 26 extrusion presses (500–5000 MT), anodizing, powder coating, PVDF, CNC fabrication, 50,000 t/year.
Standards: GB/T 5237, EN 755, ASTM B221 · ISO 9001:2015, ISO 14001.

## Product ranges
- [Architectural Aluminum](https://www.linkedalu.com/products/architectural-aluminum): LINKEDALU METAL extrudes architectural aluminum profiles for building envelopes, balconies, sunshade systems and outdoor living structures. We work in 6063-T5
  - [Curtain Wall Profiles](https://www.linkedalu.com/products/architectural-aluminum/curtain-walls): LINKEDALU METAL supplies aluminum curtain wall profiles for unitized and stick-built facades: mullions, transoms, pressure plates, cover
  - [Guardrail & Railing Profiles](https://www.linkedalu.com/products/architectural-aluminum/guardrail): Our guardrail and railing profiles cover balustrade posts, top and bottom rails, handrails, infill clamps and base plates for commercial
  - [Louver & Sunshade Profiles](https://www.linkedalu.com/products/architectural-aluminum/louver): Louver and sunshade profiles from LINKEDALU METAL include fixed blade, Z-blade, elliptical, tubular and box sections for facade brise
  - [Sunroom & Screen Room Profiles](https://www.linkedalu.com/products/architectural-aluminum/sunrooms): Sunroom and screen room profiles are engineered for four-season rooms, patio enclosures, porch screening, pool cages and conservatory-style
  - [Window & Door Profiles](https://www.linkedalu.com/products/architectural-aluminum/windows-doors): Window and door profiles cover casement, awning, sliding, tilt-turn, fixed light, folding and entrance door systems. Sections are extruded
- [CNC Machining Parts](https://www.linkedalu.com/products/cnc-machining-parts): LINKEDALU METAL machines aluminum components from bar, plate and our own extrusion, so parts can be produced either as standalone CNC work or as finished
  - [High-Precision Aluminum Parts](https://www.linkedalu.com/products/cnc-machining-parts/high-precise-aluminum-parts): High-precision aluminum parts are machined from 6061-T6 and 7075-T651 bar, plate and extrusion on 3-, 4- and 5-axis CNC centers, with
- [Industrial Aluminum](https://www.linkedalu.com/products/industrial-aluminum): Industrial aluminum is where extrusion does more than frame a building. This range covers functional profiles for thermal management, electrical machines
  - [Aluminum Heatsinks](https://www.linkedalu.com/products/industrial-aluminum/aluminum-heatsinks): Aluminum heatsink profiles are extruded with fin pitches from roughly 2 mm to 12 mm for LED engines, drivers, power supplies, inverters
  - [Electric Motor Housings](https://www.linkedalu.com/products/industrial-aluminum/electric-motor-housings): Electric motor housing profiles serve servo, stepper, brushless DC, gear and pump motors, as well as gearbox and actuator bodies. Sections
  - [LED Lighting Profiles](https://www.linkedalu.com/products/industrial-aluminum/led-lightings): LED lighting profiles cover linear, surface-mounted, recessed, suspended, track and corner sections for architectural and industrial
  - [T-Slot & V-Slot Profiles](https://www.linkedalu.com/products/industrial-aluminum/slot-aluminum-profiles): T-slot and V-slot aluminum profiles form the structural framing range: 20x20, 20x40, 30x30, 40x40, 45x45, 45x90 and larger, all extruded in
  - [Solar Energy Profiles](https://www.linkedalu.com/products/industrial-aluminum/solar-energy): Solar energy profiles include mounting rails, mid and end clamps, module frame sections, rail splices, tile hooks and base rails for
  - [Tent & Marquee Profiles](https://www.linkedalu.com/products/industrial-aluminum/tent-alumium-profiles): Tent and marquee profiles cover the structural beams and secondary members used in clearspan and pole tents: 40x40, 50x50, 63x63, 80x80 and
  - [Transportation Profiles](https://www.linkedalu.com/products/industrial-aluminum/transportation-aluminum-profilies): Transportation profiles serve truck bodies, trailers, dry freight and refrigerated vans, rail interiors, bus structures and specialty
- [Standard Aluminum Shapes](https://www.linkedalu.com/products/standard-aluminum): Standard aluminum shapes are the workhorse sections: angles, round, square and rectangular tubes, T and I-beam sections and U-channels held to consistent
  - [Angle Profiles](https://www.linkedalu.com/products/standard-aluminum/angle-aluminum-profiles): Angle aluminum profiles are produced in equal and unequal leg sections from 12x12 mm up to 100x100 mm, with leg thickness from 1.2 mm to 10
  - [Rectangular Tubes](https://www.linkedalu.com/products/standard-aluminum/rectangular-tubes): Rectangular aluminum tubes range from 10x20 mm to 100x200 mm, in 6063-T5 for architectural and general use and 6061-T6 for structural or
  - [Round Tubes](https://www.linkedalu.com/products/standard-aluminum/round-tubes): Round aluminum tubes are supplied from 12 mm to 200 mm outside diameter, in 6063-T5 and 6061-T6, with wall thickness from 1.0 mm to 10 mm
  - [Square Tubes](https://www.linkedalu.com/products/standard-aluminum/square-tubes): Square aluminum tubes run from 10x10 mm to 150x150 mm in 6063-T5 and 6061-T6, with 1.0 mm to 8.0 mm walls and consistent corner radii for
  - [T & I-Beam Profiles](https://www.linkedalu.com/products/standard-aluminum/t-shape-aluminum-profiles): T and I-beam profiles provide the heavier members in the standard range: solid T-sections for tracks and rails, and extruded I-beams for
  - [U-Channel Profiles](https://www.linkedalu.com/products/standard-aluminum/u-shape-aluminum-profiles): U-channel profiles cover standard channels and deeper tracks used for glazing, sliding panels, wire management and trim. Sections are

## Products
- [Architectural Aluminum Curtain Wall Profiles: Engineered Custom Framing Solutions](https://www.linkedalu.com/products/architectural-aluminum/curtain-walls/architectural-aluminum-curtain-wall-profiles-engineered-custom-framing-solutions.html): Engineered aluminum curtain wall framing — mullions, transoms, pressure plates, cover caps and structural thermal break suites — extruded to your shop drawings in 6063-T5 and 6063-T6.
- [Custom Aluminum Curtain Wall Profiles for High-Rise Projects](https://www.linkedalu.com/products/architectural-aluminum/curtain-walls/custom-aluminum-curtain-wall-profiles-for-high-rise-projects.html): Custom-extruded curtain wall framing for high-rise towers — one die set, one billet batch, one coating line, documented to GB/T 5237, EN 755-9 or ASTM B221 from the same material.
- [Custom Aluminum Louver Extrusion Profiles: High-Performance Architectural Sunshades & Facade Blades](https://www.linkedalu.com/products/architectural-aluminum/louver/custom-aluminum-louver-extrusion-profiles-high-performance-architectural-sunshades-facade-blades.html): Custom-extruded aluminum louver blades and complete louver systems — Z-blade, airfoil and C-blade profiles with mullions, drive linkage channels, pressure plates and sill drainage sections.
- [Custom Aluminum Louver Profiles for High-Performance Facades, Sunshades, Parking Structures & Operable Systems](https://www.linkedalu.com/products/architectural-aluminum/louver/custom-aluminum-louver-profiles-for-high-performance-facades-sunshades-parking-structures-operable-systems.html): Engineered aluminum louver profiles for facades, sunshades, parking structures and operable systems — sections designed to your solar, wind and visual-comfort criteria, not a catalog default.
- [Custom Aluminum Glass Railing Profiles | Balcony & Stair Balustrade Profiles | Linkedalu](https://www.linkedalu.com/products/architectural-aluminum/guardrail/custom-aluminum-glass-railing-profiles-balcony-stair-balustrade-profiles-linkedalu.html): Custom extruded aluminum glass railing profiles — handrails, posts, glass shoe sections, toe plates and base trims for balcony and stair balustrades, in 6063-T6 or 6061-T6.
- [Custom Aluminum Sunroom, Screenroom & Veranda Extrusions | Full Frame Systems](https://www.linkedalu.com/products/architectural-aluminum/sunrooms/custom-aluminum-sunroom-screenroom-veranda-extrusions-full-frame-systems.html): Full-frame aluminum extrusions for sunrooms, screenrooms and verandas - main beams, rafters, columns, integrated gutters and glazing beads produced to your drawing, with thermal break and
- [Anodized Aluminum Window & Door Frame Profiles](https://www.linkedalu.com/products/architectural-aluminum/windows-doors/anodized-aluminum-window-door-frame-profiles.html): 6063-T5 window and door frame profiles finished on our in-house anodizing line, with controlled 10 ±2 µm film thickness, four standard colors and GB/T 5237 precision tolerances.
- [Custom Powder Coated Aluminum Window & Door Frame Profiles](https://www.linkedalu.com/products/architectural-aluminum/windows-doors/custom-powder-coated-aluminum-window-door-frame-profiles.html): 6063-T5 window and door frame profiles, extruded to your drawings and powder coated in-house with RAL color matching, tight assembly tolerances and full OEM/ODM die development.
- [Custom Powder Coated Aluminum Window & Door Profiles](https://www.linkedalu.com/products/architectural-aluminum/windows-doors/custom-powder-coated-aluminum-window-door-profiles.html): In-house extruded and powder coated aluminum window, door and curtain wall profiles, with graded resins for 10, 15 and 20+ year durability, RAL color matching and PA66-GF25 thermal break sections.
- [Custom Aluminum Heat Sink Extrusions | 6063 LED & Power Heatsink Profiles](https://www.linkedalu.com/products/industrial-aluminum/aluminum-heatsinks/custom-aluminum-heat-sink-extrusions-6063-led-power-heatsink-profiles.html): Custom extruded aluminum heat sink profiles in 6063-T5, engineered from your drawing or thermal spec. Fin pitch to 1.5 mm, skived tips to 0.2 mm, milled mounting faces at ≤0.05 mm flatness.
- [Extruded Aluminum Heat Sinks for Power Electronics: Inverter, IGBT & EV Battery Cooling Design Guide](https://www.linkedalu.com/products/industrial-aluminum/aluminum-heatsinks/extruded-aluminum-heat-sinks-for-power-electronics-inverter-igbt-ev-battery-cooling-design-guide.html): An engineering guide to extruded heat sinks and friction stir welded cold plates for string inverters, IGBT modules and EV battery packs, covering alloy selection, fin geometry, base flatness and
- [Custom EV Motor Cooling Enclosures | Extruded Aluminum Servo, Stepper & EV Motor Shells](https://www.linkedalu.com/products/industrial-aluminum/electric-motor-housings/custom-ev-motor-cooling-enclosures-extruded-aluminum-servo-stepper-ev-motor-shells.html): Extruded aluminum motor housings with integral cooling fins for servo, stepper, spindle and EV traction motors. Bores held to 0.05 mm roundness, spigots machined in a single setup, from blanks to
- [Custom LED Light Aluminum Extrusion Profiles | Housings, Linear Lights, Channels](https://www.linkedalu.com/products/industrial-aluminum/led-lightings/custom-led-light-aluminum-extrusion-profiles-housings-linear-lights-channels.html): Custom LED aluminum extrusion profiles machined to your drawing: linear light housings, T5/T8 tube shells and heat sinks, architectural strip channels, track rails and wall washer bodies, finished in
- [LED Light Aluminum Extrusion Profiles | Housing, Channels & Rails](https://www.linkedalu.com/products/industrial-aluminum/led-lightings/led-light-aluminum-extrusion-profiles-housing-channels-rails.html): Custom aluminum profiles for LED tube lights, linear fixtures, strip channels and track rails, extruded in 6063-T5 and supplied pre-cut, drilled and tapped in black or silver anodized finish.
- [2020, 2040, 4040, 4080 Aluminum Extrusion Profiles | Frame Sizing & Load Guide](https://www.linkedalu.com/products/industrial-aluminum/slot-aluminum-profiles/2020-2040-4040-4080-aluminum-extrusion-profiles-frame-sizing-load-guide.html): 2020, 2040, 4040 and 4080 industrial aluminum profiles with practical span and load guidance, cut, drilled, tapped and labeled to your BOM so frames assemble without a saw on site.
- [Custom T-Slot & V-Slot Aluminum Extrusions | Industrial Frame Profiles](https://www.linkedalu.com/products/industrial-aluminum/slot-aluminum-profiles/custom-t-slot-v-slot-aluminum-extrusions-industrial-frame-profiles.html): Custom T-slot and V-slot aluminum extrusions from 20×20 mm to 160×160 mm, with slot widths held to 0.15 mm and straightness of 0.5 mm/m, delivered as labeled frame kits machined to your BOM.
- [Aluminum Solar Mounting Profiles | Standard Rails & Custom Tracker Extrusions](https://www.linkedalu.com/products/industrial-aluminum/solar-energy/aluminum-solar-mounting-profiles-standard-rails-custom-tracker-extrusions.html): Aluminum solar mounting profiles: standard square and rectangular tube plus custom PV rails, C- and H-channel posts, clamp bases and BIPV gutters, supplied cut, punched and labeled as installation
- [Aluminum Solar Panel Frame Extrusions | PV Module Frames](https://www.linkedalu.com/products/industrial-aluminum/solar-energy/aluminum-solar-panel-frame-extrusions-pv-module-frames.html): Aluminum solar panel frames extruded in 6063-T5 or 6063-T6, held to 0.5 mm/m straightness and anodized AA15 or AA20, supplied cut, CNC punched, drainage slotted and film protected for automated
- [Aluminum Profiles for Tents, Marquees, and Folding Frame Structures](https://www.linkedalu.com/products/industrial-aluminum/tent-alumium-profiles/aluminum-profiles-for-tents-marquees-and-folding-frame-structures.html): Custom aluminum tent poles, marquee beams and folding frame profiles in 6061-T6 and 6063-T5, CNC drilled from a single datum and finished with outdoor-grade coatings, shipped as labeled site-ready
- [Aluminum Extrusions for Roof Racks and Tent Frames—Made to Your Drawings, Built for the Outdoors](https://www.linkedalu.com/products/industrial-aluminum/transportation-aluminum-profilies/aluminum-extrusions-for-roof-racks-and-tent-frames-made-to-your-drawings-built-for-the-outdoors.html): Custom aluminum extrusions for automotive roof racks and outdoor camping systems: crossbars, side rails, foot bases, tent poles and hinge bodies, with outdoor-grade anodized, powder coated or PVDF
- [Custom Aluminum Angle Profiles — Equal & Unequal Leg For Framing, Bracing, Corners, Brackets & Structural Applications](https://www.linkedalu.com/products/standard-aluminum/angle-aluminum-profiles/custom-aluminum-angle-profiles-equal-unequal-leg-for-framing-bracing-corners-brackets-structural-applications.html): Extruded aluminum L-angle in equal and unequal leg, supplied in 6063-T5 and 6061-T6 for framing, bracing, brackets and corner reinforcement. Cut, drilled, tapped, welded and finished to your drawing.
- [Custom Aluminum Rectangular Tubes | 6063 & 6061 Extruded Tubing](https://www.linkedalu.com/products/standard-aluminum/rectangular-tubes/custom-aluminum-rectangular-tubes-6063-6061-extruded-tubing.html): Factory-direct extruded aluminum rectangular tubes and flat pipes in 6063 and 6061 alloys, with tailored wall thicknesses, internal reinforcement ribs, CNC fabrication and architectural finishes.
- [Custom Aluminum Round Tube & Pipe — Seamless, Welded, DOM. Structural, Fluid, Heat Exchanger — Specified to Project](https://www.linkedalu.com/products/standard-aluminum/round-tubes/custom-aluminum-round-tube-pipe-seamless-welded-dom-structural-fluid-heat-exchanger-specified-to-project.html): Extruded aluminum round tube for structural framing, handrails, marine hardware, heat exchangers and hydraulic lines, supplied in seamless, welded or drawn-over-mandrel form with mill test
- [Aluminum Square & Rectangular Tube | Sizes, Load Guide, Cut-to-Length, Custom Extrusion](https://www.linkedalu.com/products/standard-aluminum/square-tubes/aluminum-square-rectangular-tube-sizes-load-guide-cut-to-length-custom-extrusion.html): Aluminum square and rectangular tube selection with a practical load-span guide, bending limits and machining data, supplied cut to length, drilled and labeled from 6063-T5, 6061-T6 or 6005-T5.
- [Custom Extruded Aluminum I-Beam & T-Profile — Lightweight Structural Sections, Steel Replacement, Load Capacity, Deflection, Welding](https://www.linkedalu.com/products/standard-aluminum/t-shape-aluminum-profiles/custom-extruded-aluminum-i-beam-t-profile-lightweight-structural-sections-steel-replacement-load-capacity-deflection-welding-all-specified-to-project.html): Custom extruded aluminum I-beam and T-profile sections for truck bodies, trailers, machine frames, partition walls, ceiling grids and architectural reveals, with mill finish or anodized supply and
- [Custom Aluminum U-Channel Profiles — Engineered for Glass, Panels & Tracks: Tolerances, Wall Thickness, Alloy — All Specified to Project](https://www.linkedalu.com/products/standard-aluminum/u-shape-aluminum-profiles/custom-aluminum-u-channel-profiles-engineered-for-glass-panels-tracks-tolerances-wall-thickness-alloy-all-specified-to-project-not-catalog.html): Extruded aluminum U-channel engineered for glass retention, panel systems, sliding tracks and edge protection, with slot tolerances, wall-thickness ratios and alloy specified to your project rather
- [Aluminum Profile CNC Deep Processing Services: From Extrusions to Ready-to-Assemble Components](https://www.linkedalu.com/products/cnc-machining-parts/high-precise-aluminum-parts/aluminum-profile-cnc-deep-processing-services-from-extrusions-to-ready-to-assemble-components.html): In-house CNC deep processing that turns extruded aluminum profiles into finished, bolt-ready components, with published tolerances, single-fixture multi-axis machining and synchronized anodizing or
- [Robot & AI Automation Aluminum Parts | CNC Machined Components for Robotics](https://www.linkedalu.com/products/cnc-machining-parts/high-precise-aluminum-parts/robot-ai-automation-aluminum-parts-cnc-machined-components-for-robotics.html): CNC machined aluminum components for robots, AGVs, linear actuators and AI vision systems — joint housings, base plates, camera frames and sensor brackets, machined in 6061-T6 with in-house anodizing.

## Insights
- [The Structural Break in Global Aluminum](https://www.linkedalu.com/insights/the-structural-break-in-global-aluminium.html): China hit its 45 Mt aluminum ceiling, Guinea signalled an export cap, Rusal is sanctioned and a Gulf smelter curtailed in February 2026. Demand from EVs, solar and copper
- [Tariffs, R&D, and the Myth of the Fragile Chinese Factory](https://www.linkedalu.com/insights/tariffs-rd-and-the-myth-of-the-fragile-chinese-factory.html): Four headlines from WSJ, the New York Times and Nikkei appear to contradict each other. Read together, they explain why production is moving back to China and why
- [The New Geography of Aluminum: Four Events in July 2026 That Just Redrew the Map](https://www.linkedalu.com/insights/the-new-geography-of-aluminum-four-events-in-july-2026-that-just-redrew-the-map.html): In ten days of July 2026 Alcoa agreed to buy South32's aluminum business for $5.6bn, EGA and Colombia planned South America's first smelter, Egypt advanced a $900m project and
- [Your "Cheap Chinese Aluminum" Stereotype Is 10 Years Out of Date: How Automation Is Rewriting the Rules of Extrusion Quality](https://www.linkedalu.com/insights/your-cheap-chinese-aluminum-stereotype-is-10-years-out-of-date-how-automation-is-rewriting-the-rules-of-extrusion-quality.html): Automation is not replacing people in modern extrusion plants, it is replacing inconsistency: closed-loop billet control within 5 degrees Celsius, CNC machining held to 0.15 mm
- [Citi's "Most Bullish Aluminum Forecast Ever" Explained: Navigating the New Era of Structural Scarcity](https://www.linkedalu.com/insights/citis-most-bullish-aluminum-forecast-ever-explained-navigating-the-new-era-of-structural-scarcity.html): Citi's published forecast points to $4,000 per tonne LME aluminum and the most bullish cycle in over 50 years, citing a 3 million-tonne supply loss, a 55-year inventory low and no
- [Navigating the 2026 Aluminum Surge: Resilience, Technical Standards, and the New Global Supply Dynamic](https://www.linkedalu.com/insights/navigating-the-2026-aluminum-surge-resilience-technical-standards-and-the-new-global-supply-dynamic.html): Bloomberg analysis shows China's primary aluminum output at historic highs just as traditional real estate demand cools, freeing high-grade metal for solar, EV and facade
- [2026 Aluminum Storm: Navigating Geopolitical Turmoil and Record-High Costs](https://www.linkedalu.com/insights/2026-aluminum-storm-navigating-geopolitical-turmoil-and-record-high-costs.html): LME aluminum has surged toward $3,600 per tonne, up 35% year on year, as the Strait of Hormuz closure paralyses nearly 9% of global supply and a 50% tariff drives the US Midwest

## Knowledge
- [Extruded vs. Die-Cast Motor Housings: An Engineer's Guide to Choosing](https://www.linkedalu.com/knowledge/extruded-vs-die-cast-motor-housings-an-engineers-guide-to-choosing-linkedalu.html): Extrusion gives dense, weldable metal and tall fins; die casting gives complex bosses and near-net shape. A practical comparison of thermal performance, porosity, tooling cost
- [7075, 7050, and 7005: When 6061 Isn't Strong Enough](https://www.linkedalu.com/knowledge/7075-7050-and-7005-when-6061-isnt-strong-enough.html): The 7xxx family is the strongest extrudable aluminum, reaching roughly 572 MPa in 7075-T6. What 7050 and 7005 add, why 7xxx extrusion runs at 2-5 m/min, and how to weigh the
- [How Extrusion Dies Shape Aluminum Profile Quality: Steel, Tolerances, and Surface Defects Explained](https://www.linkedalu.com/knowledge/how-extrusion-dies-shape-aluminum-profile-quality-steel-tolerances-and-surface-defects-explained.html): Wall thickness drift, die lines and streaking are signatures left by the extrusion die, not the alloy. How H13 die steel, nitriding, bearing length and maintenance intervals
- [6005 vs 6005A vs 6061 vs 6063: What's the Real Difference?](https://www.linkedalu.com/knowledge/6005-vs-6005a-vs-6061-vs-6063-whats-the-real-difference.html): 6005A-T6 reaches near-6061 strength while extruding faster, costing less per meter and holding more strength after welding. The real difference between these four alloys, and
- [Aluminum Sunroom, Screenroom & Veranda Problems and Solutions: Structural, Thermal, Leaks, Finishing](https://www.linkedalu.com/knowledge/aluminum-sunroom-screenroom-veranda-problems-and-solutions-structural-thermal-leaks-finishing.html): Sagging beams, water on the floor and fogged frames trace back to design-stage decisions: alloy, wall thickness, thermal breaks, drainage paths and finish specification. The five
- [6063 vs. 6061 Aluminum: The Ultimate Guide to Properties, Performance, and Material Selection](https://www.linkedalu.com/knowledge/6063-vs-6061-aluminum-the-ultimate-guide-to-properties-performance-and-material-selection.html): 6063 extrudes fast and anodizes bright; 6061-T6 carries roughly 80 percent more tensile strength. A side-by-side look at chemistry, temper designations, extrusion speed, welding

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## Full text
- [llms-full.txt](https://www.linkedalu.com/llms-full.txt): complete technical text of all products and articles.