In the rapidly changing landscape of industrial automation, smart factories, and custom cleanrooms, structural integrity dictates efficiency. The Profile 48 X 70 (specifically represented by high-performance models like the ENI-8-4870A) stands out as an engineering marvel. Characterized by its specialized cross-section—where the profile measures 48mm on one face, 40mm on the adjacent side, and extends to a length or modular section profile of 70mm—it bridges the structural gap between lightweight frameworks and heavy-duty load-bearing supports.
This unique asymmetrical dimension allows structural engineers to optimize layouts for load vectors. By utilizing the 70mm plane in the direction of the highest bending moment and the 48mm/40mm configurations for lateral stabilizing structures, material weight is reduced without sacrificing safety. Crafted from premium 6000-series aluminum alloys (primarily 6063-T5 or 6061-T6) and treated with advanced anodization, this profile configuration offers unmatched torsional rigidity, corrosion resistance, and modular adaptability.
Aligned with the core business philosophy of "people-oriented, quality value, technological innovation, and win-win cooperation," Chengdu E&I Aluminum Industry Co., Ltd. has established itself as an elite pioneer in the research, development, and manufacturing of high-difficulty, high-precision, and high-demand aluminum alloy profiles.
Our organization is backed by the technical expertise of the National Institute of Nonferrous Metals. Through this collaboration, E&I coordinates a dedicated aluminum alloy technology research and development team, comprised of top-tier metallurgists and structure designers in China's light alloy industry. This allows us to provide comprehensive solutions for aluminum products, ranging from custom profiles to intricate castings and premium forgings.
Figure 1: Chengdu E&I Precision Extrusion and Quality Management Hub.
Figure 2: Advanced Surface Treatment and Anodizing Control Line.
E&I's world-class testing and production machinery guarantees that every batch conforms to stringent national high-precision requirements. Over the years, our elite strategic services have generated substantial business value for global enterprises, including Fortune 500 automotive companies, international aerospace lines, and smart medical electronics manufacturers.
Sourcing industrial aluminum profiles from Chengdu, China, provides distinct competitive advantages for international OEMs and system integrators:
Proximity to primary aluminum smelting bases ensures steady material supply and pricing stability. We use only premium A00 aluminum ingots (purity ≥ 99.7%) as the base for all alloy compositions.
Chengdu E&I hosts vertical integration operations. By combining raw extrusion, mechanical CNC machining, sandblasting, color anodizing, and electrophoretic coating in a single facility, we eliminate mid-process shipping delays and quality variations.
Utilizing the China-Europe Railway Express (Chengdu) and extensive maritime partnerships through Shanghai, Shenzhen, and Guangzhou ports, E&I provides reliable transport logistics worldwide with shortened freight cycles.
Procuring structural frames on a global scale requires strict alignment with localized mechanical and environmental standards. Chengdu E&I designs, manufactures, and verifies all products to meet or exceed:
E&I provides comprehensive documentation to facilitate fast customs entry, including Material Test Reports (MTRs), SGS inspections, and Certificate of Conformity documents.
The asymmetrical geometry of 48 x 70 and our diverse profile catalog enable multi-functional integration across modern high-tech sectors:
Models like the ENI-8-3060 are designed with smooth contours, minimizing dust accumulation in sterile pharmaceutical facilities and semi-conductor cleanrooms.
For extreme structural loads in robotics and gantry applications, profiles such as the E&I-10-8080H and E&I-8-60120 deliver high bending resistance, serving as sturdy bases for multi-axis machinery.
The ENI-8-8080 series provides stable perimeter structures to enclose automated lines, ensuring personnel protection and machinery compliance.
Modern architectural aluminum design is moving toward modularity, structural light-weighting, and eco-friendly practices. Automation developers no longer use welded steel structures, which require complex post-weld machining, stress relief, and regular painting.
Instead, modular aluminum extrusions (incorporating quick-connect fasteners and pre-milled slots) allow for fast on-site updates and changes. Furthermore, the rise of "Green Aluminum"—derived from low-carbon smelting processes—helps global manufacturers meet ESG mandates while reducing scope 3 emissions in supply chains.
The ENI-8-4870A features an asymmetrical cross-section of 48mm x 40mm on its main sides with a nominal length dimension profile of 70mm. This configuration provides optimized material distribution, offering high load-bearing capacity along the major axis while reducing profile weight and cost on the minor axis.
Our standard material is 6063-T5 aluminum alloy, providing an optimal balance of structural strength, ease of extrusion, and premium surface finish. For structural projects with higher load demands, we also offer 6061-T6 alloy configurations.
Our standard anodizing process produces an oxide layer of 10 to 15 microns. This protective barrier seals the metal, preventing oxidation, eliminating dust release, and resisting wear from washdown chemicals in medical facilities.
Yes. Our standard t-slot system operates on a tapered spring-load mechanism. Once the industrial fasteners are tightened, they generate high pretension. This counteracts mechanical vibrations and structural loads, keeping joints secure over long-term operation.
Yes. We provide complete manufacturing services, including mold design, die extrusion, CNC machining, and anodizing based on 3D CAD models (STEP, IGES, or DWG formats).
