Customized extruded shell aluminum profiles for mold opening
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Customized extruded shell aluminum profiles for mold opening

Product Features
1. Precision thin-walled extrusion molding
Using precision extrusion technology, the wall thickness of the profile can be controlled between 0.8mm-1.5mm, and the cross-sectional shape covers various designs such as square, elliptical, D-shaped, and irregular shapes. The precise tolerance of the inner cavity ensures smooth expansion and contraction of multiple pipe sections without any jamming, meeting the needs of repeated pulling and pulling of luggage handles.
2. High strength and lightweight
Select 6063-T5 or 6061-T6 aluminum alloy, which has excellent tensile strength and yield strength after aging treatment. The thin-walled structure achieves lightweight while ensuring load-bearing capacity. The weight of a single pull rod is reduced by about 30% -40% compared to stainless steel material, reducing the overall weight of the luggage and meeting the lightweight requirements of air travel.
3. Excellent surface treatment and corrosion resistance
Surface treatment can adopt various processes such as anodizing, wire drawing oxidation, sandblasting oxidation, and powder coating. The thickness of the oxide film can reach 10 μ m-15 μ m, forming a dense protective layer that is resistant to sweat stains, corrosion, scratches, and UV aging, ensuring that the rod maintains a stable metallic texture and color even after long-term use.
4. Good stretchability and durability
The inner wall of the profile is precision shaped and lubricated, combined with plastic guide sleeves and limit structures, to achieve tens of thousands of expansion and contraction cycles without excessive wear. The clearance between multiple pipe sections has been optimized to ensure smooth pulling and avoid shaking and abnormal noise, thus improving the user experience.
5. Processability and assembly convenience
The profile can undergo secondary processing such as cutting, punching, stamping, riveting, etc. according to the requirements of the pull rod system, and can be precisely assembled with components such as handles, bases, and button mechanisms. Standardized cross-sectional design facilitates quick selection and mass production for luggage brands, shortening product development cycles.
Product Application
1. Travel suitcase and suitcase
Extruded aluminum pull rod profiles are the core functional components of both hard and soft shell travel cases, widely used in a full range of products from 20 inch suitcases to 28 inch suitcases. Its lightweight and high-strength characteristics keep the luggage structurally stable when subjected to heavy drag, and with multi gear adjustment functions, it adapts to the usage habits of users of different heights.
2. Business briefcase and computer bag
In high-end business backpacks and briefcases, miniaturized aluminum pull rods are integrated into the back panel of the bag to achieve luggage box towing function. The miniaturized design of profile cross-section balances aesthetics and strength, meeting the dual needs of portability and professional appearance for business travelers in travel scenarios.
3. Tool and equipment box
Professional grade toolboxes, photography equipment boxes, medical equipment boxes, etc. have higher requirements for the load-bearing capacity and reliability of the pull rod. Customized thick walled profiles and reinforced rib designs, capable of carrying heavy objects ranging from 20kg to 50kg, ensuring that the pull rods of tools and precision equipment do not bend or break during transportation.
4. Children and Maternal and Child Products
Aluminum pull rods are used in products such as baby strollers, children's suitcases, and baby walking devices to achieve the function of extending and retracting push handles or dragging. The surface of the profile can be customized with brightly colored spray treatment, and the corners are designed with smooth edges to avoid sharp edges and ensure the safety of children's use.
5. Outdoor and sports equipment
Aluminum pull rods are used for portable transportation in outdoor sports equipment such as golf bags, ski bags, and fishing boxes. The profile needs to have characteristics such as impact resistance, high and low temperature resistance, rust prevention, etc., adapt to complex outdoor environments, and ensure stability and reliability even when dragged on bumpy roads.
6. Home storage and mobile furniture
Aluminum pull rods are increasingly widely used as structural supports and telescopic adjustment components in home products such as folding tables, mobile storage cabinets, and extendable hangers. The aesthetic and lightweight characteristics of profiles are highly compatible with modern home design concepts, enhancing the functionality and decorative value of products.
Chengyi Aluminum Industry (Shandong) Co., Ltd. is headquartered in Tianjin and has branches in Shandong and Jiangsu. The company currently mainly produces various high-quality aluminum profiles, aluminum tubes, aluminum square tubes, aluminum rods, aluminum strips, and assembly line aluminum materials. The main grades are 1060, 1100.3003, 5052, 5083, 6061, 60636082, 6463, 6005, 6005A, 6060, 7075, etc. We have a large stock of goods, a wide variety of products, and fast delivery.
The company has integrated production from design to mold opening, extrusion, processing, and surface treatment, with 19 extrusion machines ranging from 600 to 7500 tons. It also has modern welding technology and advanced surface treatment technology, including hard anodizing, anodizing coloring, three-acid bright silver, sandblasting anodizing, acid sand anodizing, alkali sand anodizing, powder coating, and wire drawing, responding to the transformation of old and new kinetic energy and taking customer needs as the direction, professional design and processing, achieving a better combination of mechanics and aesthetics.
Chengyi people take "humility, responsibility, innovation, and integrity" as their corporate culture, adhere to their duties, integrate knowledge and action, and strive to make aluminum alloy products better!
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