Explore our highly-acclaimed custom frame aluminum extrusions, engineered for rigorous industrial frameworks and high mechanical load tolerances.
China's Leading High-Precision Aluminum Extrusion Expert & Strategic Industrial Partner
Chengdu E&I Aluminum Industry Co., Ltd. is founded on the core values of "people-oriented, quality value, technological innovation, and win-win cooperation." We are deeply committed to the research, development, and high-precision manufacturing of aluminum alloy products that meet high difficulty, high tolerance, and extreme environment requirements.
Through a close partnership with the Chinese light alloy industry's premier institution, The National Institute of Nonferrous Metals, we operate a highly skilled technical R&D group. This enables E&I to offer custom, comprehensive metallurgical designs, structural mock-ups, and extrusion lines. We deliver strategic commercial value that supports top Global Fortune 500 companies in automotive, electronics, aerospace, and advanced manufacturing sectors.
How our philosophy shapes product quality, technological leadership, and long-term client trust.
We consider our engineering and production teams as our most valuable wealth. By offering robust training, competitive benefits, and extensive research freedom, we foster a collaborative workforce that takes ownership of product perfection.
E&I implements national high-precision extrusion protocols and rigorous chemical assays on every billet. The resulting structural frames deliver exceptional surface finish, high corrosion resistance, and structural longevity.
We continually reinvest in automated extrusion lines, precision CNC post-processing, and eco-conscious anodizing chambers. Innovation is our tool to outpace industry rivals and supply future-proof light alloy solutions.
We build collaborative relationships with clients, global distributors, and material scientists to ensure seamless engineering integration, optimized lead times, and mutual commercial expansion.
From aerospace tooling to heavy industrial automation framing.
Modern manufacturing demands materials that possess high strength-to-weight ratios, modular compatibility, and long-term corrosion immunity. Chengdu E&I Aluminum designs and supplies custom structural frames that replace traditional welded steel assemblies, offering massive cost reductions in freight, labor, and maintenance.
Our structural frame systems are heavily adopted across major macro industries:
High-grade aluminum extrusions engineered for predictable mechanical behavior under static and dynamic loading conditions.
Chengdu E&I uses premium 6000-series alloy billets (principally 6063-T5/T6 and 6061-T6). These alloys undergo a controlled thermal aging process to optimize tensile strength, yield limits, and hardness. The table below represents the core parameters of our primary extrusion profiles:
| Alloy Grade & Temper | Tensile Strength (min) | Yield Strength (min) | Hardness (Vickers / Webster) | Anodizing Thickness | Applicable Standards |
|---|---|---|---|---|---|
| 6063-T5 | 160 MPa | 110 MPa | ≥ 8 HW | 10 - 15 μm | GB/T 5237 / EN 755-2 |
| 6063-T6 | 205 MPa | 170 MPa | ≥ 10 HW | 12 - 18 μm | GB/T 5237 / EN 755-2 |
| 6061-T6 | 265 MPa | 245 MPa | ≥ 15 HW | 15 - 25 μm | ASTM B221 / EN 755-2 |
| Custom 6005A-T6 | 270 MPa | 225 MPa | ≥ 14 HW | 12 - 20 μm | EN 755-2 / ISO 6308 |
*Note: E&I structural profiles are regularly audited for surface defects and internal voids. We ensure dimensional tolerances align with EN 755-9 high-precision guidelines, ensuring seamless fitments for T-slot nuts and automated fasteners.
Helping international engineering procurement departments mitigate risk and achieve seamless assembly.
We manage our material pipelines directly from primary smelters. E&I guarantees steady pricing structures and lead-time guarantees for global partners, buffering clients from raw metal commodity spikes.
All surface anodizing and powder-coating processes run lead-free and hexavalent chromium-free. E&I profiles carry certifications compliance matching CE, RoHS, and European REACH frameworks for electronic cleanroom layouts.
From simple miter cuts to complex multi-axis CNC drilling, tapping, counterboring, and milling: E&I provides ready-to-assemble structural packages directly to construction sites, saving significant local fabrication hours.
Demonstrated integration cases where E&I profiles optimize weight, configuration, and strength.
Utilizing lightweight profiles like the ENI-6-3060A and ENI-8-4040GE, we produce clean, modular workbenches with drawer integrations, instrument shelves, and ESD mats. Because these profiles support M6 and M8 bolts without welding, layouts can be adjusted dynamically as production line needs evolve.
For heavy-duty applications requiring high moment-of-inertia cross-sections, systems like the E&I-8-80120 and ENI-8-40120 are implemented. These structural members act as primary load-bearing columns in robotic pick-and-place frames, safety fencing, and multi-axis gantry tracks, offering minimal vibration under high acceleration.
Our ongoing development projects in structural aluminum engineering.
The future of industrial extrusions revolves around carbon neutrality, high recyclability, and intelligent structural tracking. Chengdu E&I is actively pursuing three key technology horizons:
1. High-Entropy Alloys (HEAs)
Exploring titanium-aluminum composites for specialized aerospace fasteners.
2. Closed-Loop Recycling
Reclaiming clean factory off-cuts to melt into new premium-grade industrial profiles.
3. Smart Fastener Ecosystem
Designing quick-release joints that sustain high load capacities without manual retightening.
Get answers to critical design questions regarding structural aluminum profiles and slot connections.
Select specialized configurations including heavy-duty profiles, drawer-type systems, and anodized framing materials.
