Renqiu Zhongsheng Metal Products Co., Ltd. is one of the most professional manufacturers and suppliers of aluminum profile for luggage frame in China. Please feel free to wholesale durable aluminum profile for luggage frame made in China here from our factory. All customized products are with high quality and low price. Contact us for pricelist.
Anyone in the luggage industry knows that the quality of a case depends fundamentally on its material.
Our aluminum profile for luggage frames is the core support component for various suitcases, business cases, and equipment cases. Manufactured strictly according to industry standards QB/T 1586.4-2010 and QB/T 5386-2019, it supports key components such as the case frame, edging, pull rods, and corner brackets. Lightweight, high-strength, corrosion-resistant, and easy to process, it's widely used in mid-to-high-end luggage, suitable for travel gear, flight cases, instrument cases, and tool storage cases.
Regarding materials, we primarily use 6000 series aluminum alloy. 6063-T5 has a high silicon content, resulting in a smooth, flat extruded surface, making it particularly suitable for decorative structural components like frames and edging. 6061-T6 has an even higher magnesium content, achieving a tensile strength exceeding 260MPa, good toughness, and impact resistance; it's commonly used for pull rods and load-bearing frames. For clients with exceptionally high durability requirements, such as for professional equipment cases or outdoor adventure cases, with the thickness controlled between 0.8-3.0mm, it's both stable and lightweight, fully complying with airline baggage weight restrictions.
The surface treatment of the aluminum profile for luggage frames is the dividing line between durability and aesthetics. Anodizing is standard for high-end aluminum frames, with a 10-25μm oxide film, a hardness of HV300 or higher, and salt spray resistance exceeding 96 hours. Matte silver, champagne gold, and space gray metallic finishes are all available.
Powder coating offers rich colors, scratch resistance, and wear resistance, suitable for personalized designs. Electrophoretic coating boasts over 95% adhesion, providing corrosion resistance and a beautiful appearance, commonly used in business cases and instrument cases. We can also handle special processes like wood grain transfer and sandblasting, depending on client needs.
In production, every step from casting to finished product is meticulously controlled. Aluminum rods are heated to 480-520℃ and extruded, with cross-sectional tolerances controlled within ±0.05mm, ensuring a tight fit. Heat treatment involves quenching and aging, maximizing both strength and toughness for long-term use without deformation. Each batch of profiles undergoes rigorous bending, fatigue, and salt spray testing before leaving the factory.
Pull rod profiles must withstand 5000 cycles of expansion and contraction without failure, and the luggage frame must withstand 100kg of static pressure without deformation. Each batch of profiles comes with a material certificate and test report, clearly stating the alloy grade, heat treatment state, and surface treatment method, sufficient for downstream manufacturers' quality control.
In short, aluminum profiles for luggage frames are over 40% lighter than steel, over 3 times stronger than plastic, and can withstand temperatures from -40℃ to 80℃ without aging or fading. Their lifespan is 5 times longer than ordinary materials. They can be cut, drilled, and bent, and even complex structures are easily handled.
Whether you're manufacturing branded bags or custom equipment cases, choosing the right materials will significantly enhance your quality and added value.
Please contact us freely and we are looking forward to cooperating with you.
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