As a senior specialist in global B2B sales at Haomei Aluminum, I deeply understand the crucial role of high-quality concave aluminum slugs in the production of collapsible tubes. We have focused on exports for 15 years, and our concave aluminum slug for collapsible tubes products serve pharmaceutical, cosmetic, and food packaging clients in over 30 countries across Asia, Africa, the Middle East, and North America.
Precisely matching the cold extrusion process of collapsible tubes, our concave aluminum slugs possess clearly defined and suitable core alloy specifications and mechanical parameters.
Our core alloy systems are all market-proven and specifically tailored for aluminum collapsible tube production. Among them, the 1070 alloy aluminum purity ≥99.7% and the 1060 alloy aluminum purity ≥99.6%, both in the O temper, are suitable for high-end pharmaceutical ointment tubes, cosmetic and food extrusion tubes, respectively; the 1100 alloy aluminum purity 99.0%, O temper design, is suitable for industrial sealant packaging tubes; and the 3003 Al-Mn alloy, in the H14/H16 temper, meets the high strength requirements of special-purpose tubes.
With a wide range of diameters and thicknesses, tensile strengths of 70-95 MPa, yield strengths of 35-45 MPa, and elongation ≥42%, our products perfectly balance cold extrusion formability with final product rigidity. All products comply with EU EC 1935/2004 food contact material standards and US FDA certification, with heavy metal content far below international limits, meeting compliance requirements in multiple regions worldwide.
Leveraging advanced manufacturing processes, our concave aluminum slugs possess the core characteristics of precision, durability, and cleanliness, highlighting a differentiated advantage in manufacturing.
The concave structure is stamped using imported German molds, with the concave depth tolerance controlled within ±0.02mm. This ensures uniform material flow during cold extrusion, preventing tube wrinkling or breakage from the outset.
The surface utilizes a unique micro-arc oxidation + passivation dual process, achieving an ultra-smooth surface with Ra≤0.2μm. This reduces extrusion die wear, extends die life by 30%, and ensures a clean inner tube wall, meeting pharmaceutical-grade hygiene standards.
A continuous bright annealing furnace is used, with temperature fluctuations ≤±3℃, ensuring uniform hardness (18-21HB) in each batch of slugs. The cold extrusion pass rate remains consistently above 99.8%, significantly reducing production costs and losses for customers.
Compared to similar products, our collapsible tubes aluminum slugs offer five irreplaceable core advantages when used to manufacture aluminum collapsible tubes, precisely addressing industry pain points.
Firstly, superior folding resilience: high-purity O-state alloy combined with a precise concave design allows the finished tube to be folded more than 1000 times without cracking, maintaining 100% sealing at the tube opening, completely solving the problems of easy breakage and leakage in traditional aluminum tubes.
Secondly, high forming efficiency: an optimized wall thickness/diameter ratio (0.05-0.12) increases cold extrusion speed by 25%, raising the daily production capacity of a single machine from 30,000 pieces to 38,000 pieces, helping customers respond quickly to global orders.
Thirdly, excellent barrier properties: the high purity of the 1070 alloy ensures an oxygen permeability of <0.5 cm³/(m²·24h). • Atm), with a water vapor transmission rate of <0.3g/(m²·24h), effectively protecting the activity of the contents and extending the product’s shelf life by 40%;
Fourth, its lightweight advantage is outstanding, being 40% lighter than plastic tubes of the same specification and 60% lighter than tin tubes, significantly reducing warehousing and logistics costs, aligning with the global trend of green packaging, and particularly favored by European customers;
Fifth, it boasts strong end-to-end customization capabilities, supporting customization of any size with a diameter of 10-60mm and a thickness of 0.5-3.0mm. From mold development to mass production, it only takes 7 days, quickly meeting customers’ differentiated needs, a core competitive advantage that most competitors cannot match.
With 15 years of experience in aluminum processing and export, Haomei Aluminum leverages its end-to-end advantages to provide reliable aluminum slugsproducts and comprehensive service guarantees to global customers, demonstrating its unique competitiveness.
On the raw material side, we use first-grade aluminum ingots and have built three fully automated production lines in-house, achieving full quality traceability from smelting and casting to finished products. Each batch of products comes with material certificates and SGS test reports, fully complying with international standards such as FDA and EU 10/2011.
On the cost side, relying on large-scale production and a localized supply chain, our product prices are 15-20% lower than those of European and American manufacturers. We also provide FOB Qingdao/Shanghai USD quotations and support flexible settlement methods such as L/C and T/T, reducing the financial pressure on our customers. On the service side, we have an inventory warehouse, shipping standard specifications within 7 days and responding to urgent orders within 72 hours. Coupled with a professional technical team providing extrusion process optimization suggestions, we truly achieve a one-stop service of “product + technology + logistics”.
On the environmental side, our aluminum slugs products have a 100% recyclability rate, complying with the EU WEEE Directive, helping customers obtain environmental certifications and enhance the premium value of their end products.
Choosing Haomei concave aluminum slugs is not only choosing high-quality raw materials suitable for aluminum collapsible tube production, but also choosing a reliable partner deeply rooted in the industry and serving the world. Our products have helped numerous international brands achieve performance breakthroughs in collapsible tubing, reducing overall costs by 12-18%. For sample testing or customized solutions, please feel free to contact us. We offer professional services including sample production in as little as 7 days and 24-hour technical support, providing a solid guarantee for your global market expansion.
