Kangjian
Kangjian
Engineered for high mechanical loads, corrosion resistance, and precision dimensions.
As a leading force among China aluminium extruded tube manufacturers and high-tech factories, Qingdao Kangjian Aluminum Industry Technology Co., Ltd. sets the benchmark for advanced industrial extrusions. Located in Jimo District, Qingdao, our 200-mu state-of-the-art production base has an annual output capacity of over 15,000 tons of high-strength structural profiles. Backed by extensive quality certifications including IATF16949 (Automotive), ISO22163 (Rail), and EN15085 (Welding), we support industrial manufacturing, electronics, renewable energy, and heavy marine engineering globally.
Unlocking mechanical integrity, high-precision tolerance control, and tailored alloy tempering.
Aluminium extruded tubes are not generic commodity products. For heavy industrial, automotive, and aerospace clients, the metallurgical composition and grain alignment of the tube determine its structural integrity under extreme load scenarios. At Kangjian, we leverage the distinct benefits of both 6000-series and high-strength 7000-series alloys to fabricate products that meet rigorous global standards.
The core alloy of architectural and structural hardware is Aluminium 6063, highly praised for its excellent anodizing response, outstanding corrosion resistance, and moderate strength. For load-bearing frames, subways, and structural robotic chassis, we transition to Aluminium 6061 or Aluminium 6082, which possess superior tensile strength (exceeding 310 MPa in T6 temper) and toughness. The thermal temper of the profile is strictly regulated: our automated aging furnaces achieve precise T5, T6, or T6511 states, eliminating internal residual stresses and ensuring zero deformation during post-extrusion CNC precision machining operations.
| Alloy Grade | Temper Options | Tensile Strength (MPa) | Yield Strength (MPa) | Primary Industrial Applications |
|---|---|---|---|---|
| 6063 | T5, T6, T66 | 180 - 245 | 160 - 200 | Architectural window frames, decorative trims, LED strip channels, shower enclosures. |
| 6061 | T4, T6, T651 | 260 - 310 | 240 - 275 | Robotic arms, oil drilling platform fittings, heavy automotive chassis, machine tools. |
| 6082 | T5, T6 | 290 - 350 | 250 - 280 | Railway carriage structural members, high-load truss bridges, offshore marine structures. |
| 6005A | T5, T6 | 270 - 290 | 225 - 250 | High-speed passenger train outer panels, complex structural profiles requiring high weldability. |
How advanced extrusions address carbon reduction, electrification, and structural weight optimization.
In the automotive sector, reducing a vehicle’s curb weight by 10% can boost energy efficiency by 6% to 8%. For EVs, this translates directly to increased battery range. Consequently, custom aluminium structural extrusions are extensively deployed in battery enclosures, side-impact crash bars, and bumper beams. Simultaneously, global rail networks rely on massive, single-piece extruded profiles (often exceeding 20 meters in length) to construct train bodies that are both light and robust enough to endure sustained high-speed friction and turbulence.
Equipped with 5 precision extrusion lines and high-speed multi-axis CNC centers.
Established in 2022, Qingdao Kangjian Aluminum Industry Technology Co., Ltd. operates out of an expansive 80,000-square-meter modern manufacturing workshop. Our factory houses five industrial-grade extrusion presses, including a heavy-duty 2500T extruder, an 1150T unit, a 1450T unit, and two 700T units. This comprehensive range of machinery allows us to produce both delicate, thin-walled micro-profiles (such as LED lighting tubes) and dense, thick-walled industrial profiles.
Our processing capabilities extend far beyond raw extrusion. To supply truly turnkey solutions, our facility features a specialized CNC machining workshop equipped with multi-axis vertical machining centers. This allows us to perform high-speed drilling, tapping, milling, precise miter cutting, and multi-dimensional assembly preparation with micro-level accuracy.
Ranging from 700T to 2500T, handling a diverse spectrum of profile shapes, cross-sectional dimensions, and wall thicknesses.
Equipped for drilling, milling, punching, and deburring to supply structural pieces that are ready for immediate assembly line integration.
Our in-house capabilities include sandblasting, chemical etching, mirror polishing, anodizing (clear and colored), and durable powder coating.
A rigorous quality management system certified by top international industrial bodies.
Quality Management System
Environmental Safety Standards
Automotive Quality Management
International Railway Standards
Railway Vehicle Welding Standards
Adhesive Bonding of Rail Vehicles
Leveraging Qingdao Port logistics to deliver seamless international transit and custom compliance.
A reliable manufacturing partner must also provide reliable logistics. Located near the Port of Qingdao—one of China’s largest deep-water shipping hubs—Kangjian enjoys a natural logistical advantage. This "dual-sea layout" enables us to offer direct, cost-efficient ocean shipping routes to major industrial hubs across South Korea, Japan, Europe, and the Americas.
To ensure smooth customs clearance and avoid unexpected transit delays, we offer comprehensive documentation, including detailed material test reports (MTRs), chemical composition analysis sheets, and certificate of origin documents. Our international logistics team works directly with global freight forwarders to provide DDP, CIF, or FOB terms, keeping your assembly lines moving on schedule.
Engineered for mission-critical roles in automated manufacturing, infrastructure, and lighting.
Highly modular, anodized T-Slot profiles utilized in constructing custom factory conveyor systems, heavy machine frames, safety guards, and cleanroom enclosures.
Lightweight 6061-T6 aluminum tubes designed for high-speed robotic arm linkages, reducing inertial mass and improving positioning accuracy in automated packaging lines.
Corrosion-resistant heavy wall structural tubes engineered to withstand continuous salt spray, high humidity, and physical impact on offshore rigs.
Direct factory pricing and fully customizable dimensions for international projects.
Highly polished, chrome-like anodized finish. Excellent moisture and corrosion resistance.
Optimized wall thickness for modern frameless and semi-frameless sliding systems.
Precision-extruded structural architectural components with clean finishes.
Specifically designed for LED strip lighting diffusion, heat-sinking, and trim protection.
Optimized thermal conductivity profile designed for high-power LED installations.
Ultra-compact V-shape aluminum channel perfect for custom cabinet display lighting.
Minimizing environmental footprints through low-carbon smelting and closed-loop scrap recycling.
Modern procurement goes beyond mechanical performance; it demands supply chain sustainability. As part of our commitment to green manufacturing, Kangjian’s production roadmap incorporates low-carbon energy sources and advanced recycling loops. Our ISO 14001 certified facility utilizes closed-loop recovery systems to reclaim 100% of internal aluminum scrap, which is remelted and fed back into the extrusion cycle without compromising mechanical properties.
By optimizing extrusion parameters and using energy-efficient heating systems, we reduce the carbon footprint per ton of extruded profile. This focus on sustainability helps international clients meet their scope 3 emissions targets, aligning with global green building initiatives (such as LEED) and strict environmental mandates in Europe and North America.
Expert answers to critical engineering, manufacturing, and shipping questions.
Heavy duty components designed for structural applications and high-stress environments.
Supporting leading international brands with reliable, high-performance structural profiles.
