Kangjian
Kangjian
Engineered for heavy-duty architectures, robotic frameworks, and precision lighting systems with advanced surface coatings.
The international architectural landscape has shifted toward large-format glass installations, demanding structural framing that provides superior mechanical resilience without compromising on weight. Panel sliding door systems have emerged as the standard for commercial, residential, and industrial partitions, relying heavily on custom-designed extruded aluminum profiles. The precision of the thermal break, alloy chemistry, and dimensional consistency direct the thermodynamic and structural integrity of modern energy-efficient envelopes.
For procurement directors in North America, Europe, and Asia-Pacific, sourcing from specialized Chinese manufacturers offers strategic access to state-of-the-art tooling capabilities, complete vertical integration, and significant economies of scale. High-performance aluminum profiles (primarily utilizing 6000-series alloys) form the backbone of these sliding systems, providing critical resistance to wind loads, high cyclic fatigue life, and corrosion resistance in coastal marine zones.
Selecting the correct aluminum alloy formulation determines the mechanical limits, surface finish, and machining complexity of the final sliding door panels. The following chart outlines the industrial standards for B2B procurement verification.
| Alloy & Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Primary Industrial Use Case |
|---|---|---|---|---|
| 6063-T5 | ≥ 160 | ≥ 110 | ≥ 8 | Residential door frames, internal partitions, low-stress window frames. Excellent surface finish. |
| 6063-T6 | ≥ 205 | ≥ 170 | ≥ 8 | High-span sliding doors, commercial curtain walls, wind-load resistant structures. |
| 6061-T6 | ≥ 265 | ≥ 240 | ≥ 8 | Heavy-duty industrial doors, structural brackets, automated robotic arm components, marine applications. |
| 6082-T6 | ≥ 290 | ≥ 250 | ≥ 6 | High-stress transport structural parts, framing profiles for heavy-freight train compartments. |
We provide system-level architectural integrations including thermal-break profiles, high-load running tracks, acoustic insulation layers, and moisture-barrier systems to satisfy stringent green building criteria (LEED/BREEAM).
Operating a range of extrusion presses from 700T to 2500T allows us to generate customized profiles with wall thicknesses ranging from 0.8mm to 10.0mm. Custom dies are modeled through finite element analysis (FEA) to control material flow speeds.
As smart automation integrates with civil infrastructure, we are aligning our architectural outputs with automated opening systems, built-in LED tracking grooves, and structural robotics mounts for next-generation automated spaces.
Qingdao Kangjian Aluminum Industry Technology Co., Ltd. is located in Jimo District, Qingdao City. The company was officially registered and established in 2022. The enterprise mainly produces and processes aluminum and aluminum alloy products. Aluminum alloy industrial profiles, rail transit profiles, aerospace, automotive and Marine profiles, architectural profiles, curtain wall profiles. It has successively obtained the National Industrial Product Production License, GB/T19001-2016/ISO9001 Quality Management System Certification, and GB/T24001-2016/ISO14001 Environmental Management System Certification, IATF16949 Automotive Industry Quality Management System Certification, ISO22163 Railway Industry Management System, EN15085 Welding system, ISO3834 Welding system, AWS Welding system, DIN6701 Bonding system and many other certifications.
Qingdao Kangjian Aluminum Industry Technology Co., Ltd. is located at No. 168, Tianshan 1st Road, Jimo District. It has formed an industrial production base covering an area of 200 mu, with about 80,000 square meters of factory buildings and 4,000 square meters of office buildings. The company's production and processing base with an annual output of 15,000 tons of aluminum profiles has been put into operation, with a construction area of 20,000 square meters, 90 employees and 5 extrusion production lines. Among them, there is one 1450T extruder. Two 700T units; One 2500T unit and one 1150T unit.
Qingdao Kangjian Aluminium Industry Technology Co., Ltd. is currently the largest aluminium profile manufacturer in Qingdao area, specializing in aluminium profiles for high-speed railways, subways, auto parts, ships and energy-saving buildings. In the future, with the wide application of energy-saving and emission-reduction technologies such as lightweight, low energy consumption and low emissions, emerging materials represented by aluminum alloy materials will have a broader application space and a more promising market prospect.
In just three years since its establishment, Qingdao Kangjian Aluminum Industry Technology Co., Ltd. has rapidly expanded from its local market in Qingdao to the national and global markets. Our products not only cover the local area of Qingdao, but also reach deep into core domestic regions such as Anhui, Hebei, Tianjin, Hunan, Guangdong, Beijing and Jiangsu. Relying on the unique port and industrial advantages of Qingdao, we have successfully expanded into international high-end markets such as South Korea, Japan, the United States and Europe.
Against the trend of growth, demonstrating strength: Against the backdrop of a challenging global market, Kangjian Aluminum Industry has shown strong resilience. Business volume and shipment volume have continued to rise, with the average annual growth rate of order delivery and output value reaching as high as 30%.
In Qingdao, a city by the Yellow Sea, a dream about high-end aluminum profiles quietly set sail in 2022. Several founders were well aware of the vigorous demand in this industrial hotspot, but they regretted the lack of domestic high-end aluminum extrusion capabilities. This regret kindled their determination to fill the void.
Qingdao, backed by a vast domestic market and facing the blue international trade waterway, has endowed Kangjian with a unique "dual-sea layout". Kangjian Aluminium Industry came into being, determined to serve the world.
"Producing high-end aluminum materials and serving global customers" - this is not only an idea but also a principle deeply ingrained in our very veins. With cutting-edge equipment, strict quality control and unremitting innovation, Kangjian has turned its promises into reality: the giant gantry cranes in Nordic ports are firmly established thanks to Kangjian's high-strength corrosion-resistant aluminum materials. On the drawings of the world's top projects, the logo of "KANGJIAN ALUMINIUM" shines brightly.
Setting sail from Qingdao, Kangjian embraces the world with the openness of the sea and carries the future with the tenacity of aluminum. Every precision profile silently tells us: "Made in China" is forging the industrial backbone that connects the world here.
Our industrial footprint covers diverse application categories, supplying structural extrusions for modern industries across multiple continents.
Qingdao Kangjian Aluminum Technology Co., Ltd. offers an extensive range of high-performance aluminum products designed for global architectural and engineering applications.
Offering high structural deflection capabilities with premium light-weight engineering, specialized for modern hotels and dynamic room installations.
Industrial standard T5 tempering process that delivers perfect surface consistency, ready for custom electrostatic powder coating options.
Ideally suited for linear lighting applications and structural framing arrays. Highly adaptable wall thickness properties.
Custom heat dissipation channel configurations designed to optimize LED operational lifespans and avoid local heat build-up.
Architecturally designed corner joints that allow flush mounting and optimized illumination angles for internal display architectures.
Our engineering workflows conform to strict international frameworks, certified to guarantee reliability across diverse aerospace, rail, and heavy automotive systems.
Exhibiting at prominent global industrial events and supplying components for international infrastructure landmarks highlights our focus on high-performance extrusions.
The logistics flow of extruded aluminum components represents a crucial component of B2B procurement risk management. Located adjacent to the Port of Qingdao, our shipping operations leverage integrated sea routes to secure fast delivery to key B2B international hubs. This port-adjacent positioning reduces overland transportation times, lowering risks of profile deformation or surface oxidation during transport.
Our compliance operations address European and North American engineering mandates. From ASTM specifications to EN standards, each extrusion run includes complete mill test reports (MTR) detailing chemical analysis, tensile testing, and dimensions. In addition, our manufacturing facilities operate under strict ISO certifications, ensuring complete traceability from raw ingot to machined, packaged profile bundles.
Resolving critical engineering and logistical queries for international structural projects.
For high-load and commercial applications, 6063-T6 is highly recommended. It offers a tensile strength of ≥205 MPa and a yield strength of ≥170 MPa, which provides greater resistance to deflection under wind load compared to T5. If the door frame supports heavy structural loads or integrates automated mechanical hardware, 6061-T6 may be utilized due to its higher tensile strength of ≥265 MPa.
Extrusion press tonnage (measured in metric tons, e.g., our 2500T, 1450T, and 700T presses) determines the maximum circumscribing circle diameter (CCD) and the minimum wall thickness of the aluminum profile. High-tonnage presses (like our 2500T unit) allow the extrusion of wide, complex cross-sections with walls up to 10mm thick, whereas smaller presses (like our 700T units) are ideal for thin-walled, high-precision profiles like LED tracks and detailed decorative trim with tolerances within EN 12020-2 specifications.
We provide four main surface treatment techniques:
We source only high-grade primary aluminum ingots with certified Mg, Si, and Fe content. Every melt batch undergoes optical emission spectrometry (OES) testing prior to casting. Finished extrusions pass through ultrasonic inspection and dimensional laser scanning to identify and eliminate micro-fissures, internal voids, or deviation from the specified profiles.
Die design, testing, and approval cycles usually take 10 to 14 working days. Bulk extrusion runs are completed in 15 to 20 days depending on the volume and surface treatment requirements. With our proximity to the Port of Qingdao, profiles are loaded directly into containers and dispatched on scheduled global ocean freight routes to minimize transit delay.
We operate fully equipped CNC machining centers capable of secondary processing. Our capabilities include high-precision cutting, multi-axis drilling, countersinking, tapping, milling, and mechanical assembly. We also carry certified structural welding (EN15085/ISO3834) and bonding (DIN6701) setups to supply ready-to-install components.
High-strength alloy systems engineered for structural cleanroom partitions, logistics frameworks, solar mounts, and robotics.
