Explore our core engineering arrays designed to produce high-specification hoses, micro-ducts, and dynamic profiles.
Jiangsu Baodie Automation Equipment Co., Ltd. (BAOD EXTRUSION) was established in 2002, building on a legacy of excellence that began in 1999 when parent company KINGSWEL GROUP set up its primary extrusion manufacturing base in Shanghai. With over 25 years of engineering heritage originating in Taiwan, we are dedicated to the research, design, and manufacturing of premium plastic extrusion machinery.
Our commitment to precision engineering, high output velocity, intelligent automation, and operational safety has made BAOD EXTRUSION a global provider of manufacturing lines for various industries, including medical care, automotive systems, structural engineering, and high-performance fluid transportation.
"Delivering advanced automation solutions to optimize material yields, energy consumption, and product dimension tolerances on a global scale."
We consistently invest in next-generation R&D to address critical pain points in the extrusion industry:
A deep-dive technical analysis of the process flow, material physics, and machinery components that produce high-performance industrial and medical tubing.
Resin pellets (e.g., PVC, HDPE, TPV, PA) enter via gravimetric feeders. A high L/D ratio screw (typically 28:1 to 33:1) ensures optimal plasticization, shear heating, and pressure stabilization to prevent melt fluctuations.
The molten polymer is pushed through a custom-engineered spiral mandrell die. The structural design eliminates weld lines, providing uniform wall thickness for high-pressure and multi-layer structural configurations.
The profile enters a vacuum calibration chamber where cooling water spray sets the final outer diameter. Micro-adjustments in vacuum levels and water flow prevent thermal deformation.
Information Gain Highlight: Multi-layer co-extrusion technology enables the production of advanced composite hoses (e.g., three-layer PA/EVOH/PA fuel lines). By bonding distinct polymer families under tight temperature windows, BAOD lines deliver oxygen barrier qualities and chemical resistance in a single, robust process.
How precise extrusion engineering supports the development of critical global infrastructures, modern energy grids, and next-generation medical facilities.
Modern internal combustion and electric vehicles (EVs) require lightweight, chemically inert fluid transport solutions. Our TPV/PVC co-extrusion lines are widely used to manufacture complex door seals, under-hood air ducts, and brake fluid hoses.
Additionally, multi-layer polyamide (PA) smooth and corrugated pipes produced on BAOD lines meet stringent automotive specifications, preventing fuel vapor permeation and maintaining mechanical durability under extreme temperature ranges.
Medical-grade tubing (such as IV lines, multi-lumen catheters, and respiratory circuits) requires extremely sterile manufacturing conditions and tight tolerances. BAOD’s high-speed PVC medical tube lines operate in controlled cleanrooms, utilizing specialized non-toxic, medical-grade compounds.
Equipped with closed-loop laser gauge monitors, these lines continuously verify outer diameter and wall thickness at speeds exceeding 100 meters per minute, preventing dimension deviations.
As 5G networks expand worldwide, protecting optical fiber cables is critical. HDPE silicone core micro-ducts provide a low-friction internal channel, enabling fiber cables to be blown through long underground routes without damage.
Our co-extrusion lines bond a high-density polyethylene outer shell with a solid, dry lubricant silicone inner lining. This structural design ensures chemical resistance, structural stability, and minimal internal friction.
For high-pressure hydraulic and pneumatic applications, standard single-layer hoses are insufficient. BAOD's braided reinforced composite hose extrusion systems integrate a dynamic fiber-weaving step between two plastic extrusion phases.
This process encapsulates the reinforced polyester or steel wire braid between the inner core and outer protective sleeve, ensuring high burst pressure capabilities for mining, construction, and agricultural equipment.
Review key technical specifications across our flagship extrusion systems to identify the ideal setup for your production demands.
| Extrusion Line Type | Primary Material Focus | OD Tolerance Capability | Max Line Velocity | Key Automation Features |
|---|---|---|---|---|
| HDPE Silicone Core Micro-Duct Line | HDPE + Internal Silicone Layer | ±0.05 mm | 60 - 80 m/min | Co-extrusion block, Gravimetric dosing system |
| High-Speed PVC Medical Tube Line | Medical PVC, TPU | ±0.02 mm | Up to 120 m/min | Laser diameter gauges, Vacuum water cooling tank |
| Multi-Layer PA Fuel Hose Line | PA6, PA11, PA12, EVOH, Adhesive | ±0.03 mm | 35 - 50 m/min | Up to 5-layer co-extrusion heads, Closed-loop control |
| TPV Knitting Composite Hose Line | TPV + Polyester/Steel Fiber Braid | ±0.06 mm | 25 - 40 m/min | Synchronized braiding machine, Dual cooling tanks |
| Automotive Sealing Strip Line | TPV, EPDM, PVC | Dynamic profile fit | 30 - 45 m/min | Metal carrier insertion, Online punching/cutting |
Operating on a global stage requires strict adherence to international industrial regulations. BAOD EXTRUSION maintains active compliance with regional certifications to ensure smooth integration into manufacturing facilities worldwide:
All machinery electrical frameworks, safety interlocks, and pressure vessels are fully CE certified, satisfying EU health, safety, and environmental protection directives.
Our 16,000 m² production facility in Jiangsu maintains ISO 9001 standards, ensuring traceablity of raw materials, metal machining accuracy, and assembly verification.
Our medical tubing lines are designed to process medical-grade plastics without introducing metallic contamination or toxic plasticizer residues, supporting Cleanroom Class 10,000 installations.
We recognize that procuring an extrusion line is a long-term investment. To ensure operational uptime and production efficiency, we offer localized technical support services:
A look at the future of plastics processing as BAOD develops high-speed automation systems to enhance manufacturing precision.
Integrating real-time laser gauging data with extruder drive controllers. If a pipe’s outer diameter drifts from specified parameters, the system dynamically adjusts screw speeds and vacuum levels to correct it.
Continuous monitoring of screw torque, melt pressures, and heater currents. Thermal deviations are analyzed to forecast maintenance needs before component failure occurs, minimizing unexpected downtime.
Developing specialized screw profiles designed to process biodegradable polymers and Post-Consumer Recycled (PCR) resins. These screws manage variations in resin viscosity while maintaining product quality.
Keep up with BAOD EXTRUSION’s latest technology showcases, event outcomes, and industrial perspectives from our design laboratories.
From April 21–24, CHINAPLAS 2026 was successfully held at the National Exhibition and Convention Center in Shanghai. BAOD EXTRUSION showcased its latest R&D achievements at Booth 7.1C04, presenting high-efficiency, automated solutions.
In sectors ranging from mining to infrastructure demolition, the precision of a detonating tube is critical. BAOD’s custom equipment delivers reliable wall dimensions to ensure safe detonation velocities and physical durability.
We compare how BAOD’s precision-engineered multi-lumen medical extrusion lines compete with European standards, focusing on tooling design, material handling, and mechanical reliability.
Explore the engineering controls BAOD uses to maintain strict manufacturing standards for fuel, brake, and coolant lines, matching global OEM requirements.
With the transition to electric vehicles, the demand for high-performance sealing strips has increased. Read about our latest innovations in multi-component extrusion strip lines.
Get answers to common technical and operational questions regarding plastic extrusion lines, tooling options, and machine customization.
Precision control is achieved through three interconnected systems: (1) A specialized co-extrusion crosshead design that distributes material flow uniformly across layers; (2) Gravimetric dosing systems that manage resin intake based on weight; and (3) A closed-loop feedback controller connected to online laser gauging units, which automatically adjusts screw or puller speeds if dimensions drift.
Our SJ Series single-screw extruders are designed to process a wide range of thermoplastic materials, including HDPE, LDPE, PP, PVC, TPU, and engineering plastics like Polyamide (PA6/PA11/PA12) and TPV elastomer. Each screw profile is custom-engineered to match the thermal and shear properties of the target polymer.
Ovality control depends on steady vacuum pressure and uniform water temperature inside the calibration tank. We use high-precision vacuum sizing units with micro-adjustable multi-zone vacuum controls, which prevent the tube from deforming during the initial cooling phase, ensuring minimal ovality at high speeds.
We send experienced engineers to your facility to manage assembly, commission electrical and mechanical systems, and calibrate dies for your specific raw materials. We also offer staff training on safety procedures and routine maintenance, along with remote monitoring support via PLC interfaces.
Complete your production line with our precision calibration, coating, pulling, and winding machinery.
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