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January 8, 2026

Haomei Concave Round Aluminum Slugs

For over a decade, HAOMEI ALUMINUM has been deeply rooted in the aluminum processing and export sector, consistently focusing on market demand and meticulously cultivating its expertise in the aluminum slugs niche market. Among these, concave round aluminum slugs, with their precise structural design and superior adaptability, have become a core competitive advantage in our export product category, widely serving various high-end manufacturing sectors globally, including packaging, daily chemicals, and pharmaceuticals. This reflects our commitment to the philosophy of “Form adapts to use, quality reaches the world.”

concave round aluminum slug

Precise specifications, adapting to diverse production needs, are the fundamental advantages of concave round aluminum slugs. Based on the production differences of customers in various industries worldwide, we have established a flexible yet rigorous specification system. Core parameters cover diameters from 3mm to 116mm and thicknesses from 1.6mm to 9.0mm, and can be customized to meet specific customer production equipment and finished product requirements. In terms of precision control, we strictly adhere to international standards such as DIN 59604 and ASTM E 112, with diameter tolerances precisely controlled within the range of +0.05mm/-0.02mm, ensuring that every batch of products perfectly matches automated production lines. Made from 99.7% high-purity AA1070 aluminum alloy, the material undergoes mild annealing, resulting in a stable hardness of 17-23HB. This provides excellent cold extrusion and deep drawing performance, laying a solid foundation for subsequent processing.

 

Behind the concave design lies HAOMEI’s deep understanding and optimization of production processes. Unlike traditional flat aluminum slugs, the core value of the concave structure lies in its adaptability to the core processing scenarios of deep drawing and cold extrusion. From a process logic perspective, the concave surface can create a uniform stress dispersion zone during processing, effectively avoiding problems such as localized cracking and wrinkling during material stretching, increasing the finished product yield by more than 15%. Simultaneously, the concave design reduces the contact area between the material and the mold, reducing frictional loss, extending mold life, and reducing energy consumption during processing, aligning with the current global trend of low-carbon transformation in manufacturing. From a customer perspective, this design allows for more precise positioning of aluminum slugs during forming, making it particularly suitable for manufacturing high-precision products such as thin-walled containers and delicate tubing, helping customers improve the quality competitiveness of their end products.

aluminum slug concave shape

Leveraging its superior product characteristics, HAOMEI’s concave round aluminum slugs have applications covering multiple core sectors of high-end manufacturing globally. In the packaging industry, they are a core raw material for cosmetic lipstick tubes, mascara tubes, and perfume spray cans, and a preferred base material for food-grade aluminum bottle caps and pharmaceutical ointment tubes, their excellent sealing and corrosion resistance effectively ensuring product shelf life. In the electronics field, their excellent thermal conductivity makes them widely used in the manufacture of precision components such as capacitor housings. In the automotive industry, they can be processed into accessories such as small fuel filter housings, contributing to the lightweighting of automobiles. Today, our products have obtained multiple international certifications, including CE and RoHS, and are exported to Europe, America, and Southeast Asia, becoming a stable supplier for many internationally renowned brands.

 

From material selection to structural optimization, from precision control to global delivery, HAOMEI ALUMINUM consistently refines every concave round aluminum slug with a professional attitude. In the future, we will continue to delve into industry needs, providing global customers with aluminum processing solutions that combine technological value and environmental advantages through more precise customized solutions and more reliable quality.

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