State-of-the-art plastic processing machinery designed for global standard-setting industries
BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.), established in 2002, is a premier high-tech enterprise dedicated to the design, manufacturing, and distribution of state-of-the-art plastic extrusion machinery. Rooted in Taiwan's advanced engineering traditions with 18 years of specialized R&D experience via our parent entity (KINGSWEL GROUP) starting in Shanghai in 1999, we have achieved global renown as a pinnacle of custom precision extrusion solutions.
Our core development roadmap revolves around four key pillars:
Tailored die designs for complex polyamides (PA6, PA12, PA11).
Servo-controlled pullers, automatic coilers, and high-precision sizing tanks.
Complete line integration from raw material handling to structural testing.
In modern high-performance polymer processing, Nylon (Polyamide, PA) is renowned for its exceptional mechanical strength, heat resistance, and chemical stability. For applications ranging from automotive fuel lines and brake lines to medical multi-lumen catheters and telecommunication micro-ducts, Nylon extrusion requires advanced heat control and precision screw geometry. Designing systems for this material demands an understanding of its crystalline structure, melting point transitions, and high hygroscopicity.
"Nylon materials, specifically PA6, PA66, PA11, and PA12, demand strict thermal management during plasticization. Any variation in melt temperature can lead to molecular degradation, impacting the physical integrity of the extruded tube."
Industries are transitioning from rigid metal conduits to lightweight, flexible polymeric tubing. In the automotive sector, Electric Vehicles (EVs) require lightweight thermal management networks, creating a surge in demand for PA12 and PA11 multi-layer cooling pipes. These lines prevent coolant leakage and block vapor penetration. Concurrently, medical sectors require micro-bore multi-lumen tubing with tolerances within ±0.01mm. Meeting these standards requires high-performance single-screw extruders with specialized screw designs (L/D ratios of 28:1 to 33:1), dynamic pressure-feedback controls, and stable vacuum calibration systems.
Nylon exhibits a sharp melting point and low melt viscosity compared to polyolefins like PE or PP. This behavior requires custom-tailored barrier flight screws and precise compression ratios to ensure uniform shear without overheating. Additionally, because nylon absorbs moisture, the system must include desiccant dehumidifying dryers. These dryers maintain raw material moisture content below 0.1% prior to extrusion, preventing hydrolytic degradation and bubbles in the final product.
Modern fuel and vapor recovery lines utilize multi-layer structures, such as a outer PA12 layer, an adhesive tie layer, an EVOH barrier layer, and an inner conductive/conductive-modified PA layer. Achieving seamless bonding between these layers requires co-extrusion crossheads engineered with streamlined flow channels to prevent stagnation and polymer burning. BAOD Extrusion utilizes advanced multi-layer die heads, providing uniform layer distribution and precise wall thickness control.
Modern extrusion lines integrate sensor arrays connected to a centralized PLC control system. Real-time laser outer diameter gauges and ultrasonic wall thickness measurement devices feed back to the extruder speed and puller tension. This closed-loop control system automatically adjusts parameters to keep the output within target specifications, minimizing waste and ensuring compliance with strict industrial standards.
How we design machinery to meet strict international standards and high-volume outputs
We utilize customized screw designs matching specific polymer rheologies. This achieves high-shear efficiency, low melt degradation, and stable outputs at high linear speeds.
Our vacuum sizing tanks feature accurate water level and vacuum pressure control, maintaining consistent dimensions for tubes with wall thicknesses down to 0.15mm.
Integrated laser measuring and ultrasonic scanning equipment provide continuous inline quality reports, satisfying medical and automotive traceability requirements.
Explore our core machinery offerings optimized for industrial-grade plastic extrusion processes
Highly optimized for manufacturing medical tubing, instrumentation conduits, and micro automotive tubes.
Engineered for multi-layer fuel line configurations and lightweight protective automotive harnesses.
Cleanroom-ready extrusion layout supporting high-yield production of medical-grade tubing.
Fast, continuous corrugation forming technology for industrial wire protection and automotive systems.
Combines plastic extrusion with reinforced knitting layers for heavy-duty, high-pressure hose applications.
Specialized profile extrusion line designed to fabricate vehicle door, window, and engine compartment seals.
Keep up with the latest technological developments and trade show events from BAOD EXTRUSION
From April 21–24, CHINAPLAS 2026 was successfully held at the National Exhibition and Convention Center (Shanghai, Hongqiao). BAOD EXTRUSION showcased its latest R&D achievements at Booth 7.1C04, presenting "Smart Extrusion & High-Efficiency Innovation" solutions that...
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Technical guidance and material processing insights for global procurement managers and process engineers
Our high-precision single and multi-layer nylon tube extrusion lines consistently achieve dimensional tolerances of ±0.02mm to ±0.05mm. The control system uses real-time laser outer diameter gauges and ultrasonic wall thickness measurement devices, feeding data back to the puller and extruder to adjust speeds dynamically.
Polyamides are hygroscopic and require drying before extrusion. BAOD lines integrate desiccant dehumidifying dryers that maintain raw material moisture content below 0.1%. This setup prevents bubble formation, structural weak points, and surface defects during melt processing.
Yes. We engineer customized multi-layer co-extrusion systems (including 3-layer, 5-layer, and 7-layer configurations) that apply bonding layers and barrier materials like EVOH alongside PA6/PA12. This configuration is widely used for automotive fuel transport networks and EV thermal management systems.
We provide full-lifecycle support, including remote diagnostics, layout planning, and onsite installation/training by qualified engineers. Standard spare parts packages are supplied with each line, and remote monitoring options are available for troubleshooting.
Robust machinery, calibration units, and pullers built for continuous industrial operations
Baodie
