Kangjian
Kangjian
Explore our top-tier extruded profiles and multi-axis CNC machined components designed for structural durability and high-performance applications.
Established formally in 2022 and situated dynamically in the industrial hub of Jimo District, Qingdao City, Qingdao Kangjian Aluminum Industry Technology Co., Ltd. has established itself as an integrated pioneer in the processing and precision CNC manufacturing of complex aluminum alloys. Serving demands on a global scale, our enterprise is engineered around advanced product suites encompassing industrial extrusions, high-speed rail transit structures, aerospace components, marine-grade defense profiles, lightweight automotive elements, and architectural envelope solutions.
Our core capabilities focus heavily on the union of high-precision metallurgical science with post-extrusion multi-axis CNC machining, ensuring that raw material tolerances match structural designs perfectly. Equipped with a vast industrial estate spanning 200 mu, our infrastructure features 80,000 square meters of state-of-the-art manufacturing plants and 4,000 square meters of specialized technology centers. Operating at an annual capacity exceeding 15,000 metric tons of high-integrity profiles, the factory relies on 90 highly specialized engineers, metallurgists, and technicians, working alongside 5 advanced extrusion production lines (including specialized presses: one 2500T, one 1450T, one 1150T, and two 700T extruders).
The manufacturing landscape for precision-engineered components has evolved from basic component reproduction to highly sophisticated co-engineering. China's industrial base, particularly in northern logistics hubs like Qingdao, offers unparalleled advantages in supply chain density, engineering agility, and raw material access. This facilitates rapid scaling and precise compliance with strict international tolerances.
Immediate access to primary high-grade aluminum billets, specifically in 6000-series (6061, 6063, 6082) and aerospace 7000-series alloys, ensures isotropic mechanical properties. In-house control over extrusion tempers (T5, T6) guarantees uniform grain structure critical for high-speed machining without distortion.
By combining high-pressure extrusion with 3-axis, 4-axis, and 5-axis CNC machining, we eliminate the need to split production steps between separate vendors. Machining tolerances are held consistently to micron levels (up to ±0.005mm), meeting rigorous design specifications for critical components.
Our engineering ecosystem supports rapid design iterations and Design for Manufacturability (DFM) feedback. Leveraging local logistics infrastructure and nearby raw material suppliers, we accelerate new product introduction (NPI) cycles while maintaining cost-effective tooling and setup.
Unlike standard machine shops that source profiles from external vendors, our integrated loop controls the lifecycle from alloy formulation, billet casting, extrusion, heat treatment, precise CNC milling, drilling, and custom surface treatments. This structure eliminates transit damage and dimensional variances between raw materials and finished states.
Qingdao Kangjian's facilities are certified under major international standards for automotive, rail transit, and aerospace engineering.
In high-precision manufacturing, credentials demonstrate capabilities. Our organization has secured critical global certifications, including the National Industrial Product Production License, GB/T19001-2016/ISO9001 Quality Management System Certification, and GB/T24001-2016/ISO14001 Environmental Management System Certification. To address specialized transport and defense applications, we adhere to the strict requirements of IATF16949 (Automotive Industry Quality Management System), ISO22163 (Railway Industry Management System), EN15085 (Welding of Railway Vehicles and Components), ISO3834 (Quality Requirements for Fusion Welding of Metallic Materials), AWS (American Welding Society) standards, and the DIN6701 Adhesive Bonding standard for rail and aerospace structural components.
Originating from Qingdao along the Yellow Sea in 2022, Kangjian was founded to address the market gap in high-precision, structural-grade domestic extrusion and machining options. Leveraging our port location, we developed a "dual-sea layout"—supplying core domestic regions such as Anhui, Hebei, Tianjin, Hunan, Guangdong, Beijing, and Jiangsu, while scaling shipments to high-end international markets in South Korea, Japan, North America, and Europe. Today, our high-strength, corrosion-resistant components are integrated into cargo terminals, maritime vessels, and logistics operations worldwide.
A comparison of custom-formulated alloys across structural, chemical, and machining criteria.
| Alloy Designation | Primary Application Sectors | Machinability Rating | Corrosion Resistance | Ultimate Tensile Strength (MPa) | Thermal Conductivity (W/m·K) |
|---|---|---|---|---|---|
| 6061-T6 | Structural Automotive Chassis, Machined Fittings, Heavy Duty Platforms | Excellent | High | 310 | 167 |
| 6063-T5 / T6 | LED Linear Strips, Architectural Frames, Thin-walled Enclosures | Good | Very High | 186 - 220 | 200 |
| 6082-T6 | Rail Transit Framing, Structural Bridges, Off-Shore Platforms | Excellent | Superior | 340 | 170 |
| 7075-T6 | Aerospace Ribs, High-stress Defense Gears, Precision Connectors | Superb | Moderate | 572 | 130 |
Extruded structures designed for automation equipment, robotic arms, linear rails, and heavy-duty structural frames.
High-strength crash management systems, battery trays, side sills, and interior structural frames.
Anodized and powder-coated architectural framing, marine deck furniture, and patio structures.
High-performance window sash frames, curtain walls, thermal-break structures, and building facades.
Ultra-clean profiles for surgical lighting brackets, diagnostic machine frames, and mobility gear.
Subway and high-speed rail body shells, modular freight containers, and utility vehicle decking.
Aerospace, automotive, and railway sectors are transitioning toward structural light-weighting to improve fuel economy and lower carbon footprints. Through the deployment of high-strength structural profiles (like 6082-T6 and 7075-T6), engineers reduce vehicle mass without sacrificing crash safety or structural stiffness. This demands precise post-extrusion CNC machining to maintain safety-critical tolerances.
Our organization is implementing digital simulation technologies that model thermal expansion and deflection before toolheads meet raw metal. By importing CAD models directly intoCAM processors, we minimize scrap rates, reduce surface roughness, and optimize tool paths for complex architectural elements and multi-port fluid channels.
From architectural cladding to maritime oil platforms, components require protection against abrasive air and corrosive salt environments. Kangjian offers automated, multi-bath anodizing lines (acid cleaning, etching, sealing) and electrostatically sprayed powder coatings. This processes aluminum profiles to withstand over 1,000 hours of continuous salt-spray testing, keeping structural components intact through decades of service.
A look at some of our components integrated into global industrial settings, offshore platforms, and transportation grids.
We support designers in translating complex cross-sections into stable extrusions. This helps minimize weight, reduce assembly steps, and optimize part efficiency.
Every shipment goes through strict inspection: dimensional checks, mechanical property tests, and chemical composition analysis to ensure standard compliance.
Our foreign trade team manages logistics and customs clearance. This ensures prompt deliveries from Qingdao Port to your destination facility.
Common technical questions regarding custom aluminum extrusions and CNC machining processes.
Review our structural aluminum solutions and contact our engineering department for technical evaluation and DFM support.
