Renqiu Zhongsheng Metal Products Co., Ltd. is one of the most professional manufacturers and suppliers of door and window frame aluminum profile in China. Please feel free to wholesale durable door and window frame aluminum profile made in China here from our factory. All customized products are with high quality and low price. Contact us for pricelist.
Door and Window Frame Aluminum Profile is our flagship export product. It forms the framework for casement windows, sliding windows, casement doors, and even high-end thermally broken window and door systems. Whether it's the window frame, sash, mullions, or moldings, everything relies on it for support. We use 6063-T5 high-precision aluminum for this profile, which undergoes hot extrusion and aging strengthening, resulting in sufficient hardness and high precision. It's a reliable choice for overseas construction sites.
This profile boasts superior technical parameters in the industry. It comes in T5 alloy tempers. If your project requires resistance to wind pressure, go for T6. Its tensile strength can reach over 215MPa, and its yield strength is over 170MPa, giving you confidence for high-rise buildings. We generally control the wall thickness between 1.4mm and 2.0mm. For system windows, we recommend increasing the thickness to over 1.8mm in load-bearing areas for an even higher safety factor.
In terms of size, the longest standard length is 6 meters, and precision cutting is supported. Most importantly, precision is paramount; key dimensional errors are controlled within ±0.1mm. The multi-cavity design and thermal break structure result in remarkably small gaps during corner assembly, eliminating the need for secondary repairs. Surface treatments are equally impressive, including oxidation, powder coating, fluorocarbon coating, and even wood grain transfer. In production, we adhere to strict production specifications and authoritative national standards, GB/T 5237. PA66 GF25 thermal break strips are standard; our factory has passed ISO9001 quality management system certification and ISO14001 environmental management system certification.
The core advantages of our door and window frame aluminum profiles lie in stable structure, high overall rigidity and excellent wind pressure resistance. They are not easy to deform or sag even when used in coastal typhoon-prone areas and high-rise buildings. The practical thermal break structure greatly improves heat insulation and sound insulation performance, which is widely favored by global green building projects.
Furthermore, drainage was considered in the design, with a well-planned layout of drainage and sealing chambers to prevent backflow during heavy rains. Aluminum itself is corrosion-resistant, and with its robust surface treatment, it's resistant to salt spray and acids/alkalis. The machining process is smooth, burr-free, and milling and drilling are effortless, making it particularly suitable for fully automated production lines with a low scrap rate.
Insiders in the industry all know that the key to high-quality door and window profiles lies in the details. This product features a scientifically designed cross-section with precisely positioned grooves, enabling seamless compatibility with various types of door and window hardware accessories and sealing strips.
The inner walls are meticulously cleaned, free of any sharp burrs, making assembly efficient for workers. We never cut corners on packaging. Each product is wrapped in plastic film or bubble film with paper corner protectors, then encased in a wooden crate. This packaging effectively protects the goods from bumps and jostling during sea or land transportation.
We are equipped with large extrusion machines and spraying production lines, and strictly implement the ISO9001 quality management system. Every batch of aluminum profiles for doors and windows undergoes salt spray test and mechanical property inspection before delivery, and relevant quality inspection reports are available. With rich experience in exports business for years, we are familiar with FOB, CIF, and CFR terms and can ship from all major domestic ports.
Besides product supply, we also provide engineering drawings, sample delivery service and professional technical guidance. If you are looking for a reliable direct manufacturer of door and window aluminum profiles, welcome to contact us for cooperation. We will fully guarantee the smooth progress of your projects.
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