Explore our premium grade aluminum profiles engineered with precise structural integrity and superior surface finishes for demanding industrial applications.
Guided by our core operation principles of "people-oriented, quality value, technological innovation, and win-win cooperation", Chengdu E&I Aluminum Industry Co., Ltd. has established itself as an elite manufacturer in the structural aluminum market. We focus strictly on the development, extrusion, and CNC processing of high-difficulty, high-precision, and highly demanding aluminum alloy structural elements.
Our competitive advantage is anchored by our close technical cooperation with The National Institute of Nonferrous Metals. This relationship integrates some of China's most advanced light alloy research teams directly into our design loop. As a result, we do not simply sell profile extrusions; we provide exhaustive structural calculations, custom alloy development, and complete tooling support for aerospace, automotive, and micro-electronics partners worldwide.
Our client portfolio includes numerous Fortune Global 500 automotive suppliers and leading airlines, proving our ability to fulfill strict aerospace and automotive quality tolerances over decades-long production runs.
How modular structural aluminum systems are replacing traditional welded steel frames across high-tech factory floors globally.
Traditional welded steel frames introduce localized heat-affected zones, changing the metal's crystalline structure and lowering structural integrity. This process requires thermal stress relief, grinding, and secondary painting. EI T-slot and V-slot profiles utilize mechanical fasteners that lock directly into the slot structure. This configuration eliminates heat distortion, protects the anodized coating, and reduces assembly labor by up to 70%.
Modern factories change quickly. Assembly lines must be routinely reconfigured for different product cycles. Welded steel is difficult to modify, often resulting in scrap material. In contrast, the EI modular slot system allows users to slide fasteners along the profiles, adjust structural beams, or expand frames at any time using simple hand tools. This structural flexibility makes your physical infrastructure future-proof.
By engineering complex interior geometry—such as hollow chambers and specialized structural ribbing—our structural profiles match the load-bearing capacity of structural steel at approximately 33% of the weight. This lightweight performance lowers shipping costs, reduces floor loading constraints, and decreases inertia in moving machinery, allowing automated drive motors to run with less energy.
To provide true mechanical performance, our profiles are designed with precise structural dimensions and metallurgical parameters:
Discover how E&I structures engineering and customer support to build trust, from raw materials to installed assemblies.
We work to provide high quality value in everything we produce. Our industrial profiles are manufactured according to strict national high-precision standards, with excellent surface finishes and strong corrosion resistance. This results in parts that align and assemble easily, reducing labor costs on the shop floor.
By investing a significant portion of our revenue back into research and development, we keep our extrusion and surface treatments at the forefront of the industry. We coordinate product development and process control to create high-strength designs, giving our partners a clear advantage over their competitors.
We build lasting relationships with our clients, employees, and suppliers. By offering custom cutting, pre-assembly, and tailored packaging, we help reduce lead times and ensure our clients' projects launch smoothly and on schedule.
How EI Slot Profiles meet international regulatory standards and solve practical engineering challenges across different regions.
For modern projects, compliance is a necessity. Our profiles and accessories are manufactured in strict compliance with the following international directives:
Our structural components are used across a variety of demanding industrial sectors:
E&I's long-term plan for manufacturing innovations, sustainable production, and digital integration.
We are expanding our alloy lineup to include certified low-carbon recycled aluminum. By sorting scrap and using advanced melting systems, we aim to reduce the carbon footprint of our extrusions by up to 50% without compromising tensile strength.
We are upgrading our facilities with new multi-axis CNC machining centers. This allows us to offer precise pre-drilling, tapping, counterboring, and milling directly from customer CAD files, simplifying the final assembly process.
We are developing standard CAD libraries and configuration tools. Designers will be able to configure frames and download accurate models with matching BOMs, reducing design time and avoiding parts mismatches.
Find technical answers regarding calculations, accessories, and configuration options for industrial modular frames.
6063-T5 is our standard alloy for modular framing. It provides a clean surface finish, accurate dimensions during extrusion, and sufficient strength for assembly lines, workstations, and safety guards. For heavy load-bearing frames, crane gantries, or high-vibration applications, we recommend 6061-T6. This alloy offers higher yield strength (about 240 MPa compared to 170 MPa for 6063-T5) to handle larger mechanical loads.
Deflection (f) depends on the profile's moment of inertia (I, in cm⁴), the elastic modulus of aluminum (E = 70,000 N/mm²), the span length (L), and the applied force (F). For a point load in the center of a simply supported beam, the formula is: f = (F * L³) / (48 * E * I). We provide precise moment of inertia values (Ix, Iy) for every profile size in our catalog, helping design engineers choose the correct profile to meet their deflection limits.
Yes, our profiles are designed to match standard metric specifications. Our 40-series and 45-series profiles follow standard groove shapes (8mm and 10mm slot widths), making them compatible with most standard metric brackets, T-nuts, and connection hardware from major global manufacturers.
Our standard finish is clear natural anodizing (film thickness ≥12μm). We also offer satin black anodizing, powder coating in standard RAL colors, and specialized chemical treatments. For cleanrooms, we use a clean anodizing process that removes surface contaminants, preventing outgassing and particle release.
Yes, we provide full custom extrusion support. Our engineering team reviews your design, optimizes the profile cross-section for extrusion, creates the tooling dies, and produces sample runs. This is handled in partnership with the National Institute of Nonferrous Metals to ensure metallurgical quality.
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