Explore our top-performing manufacturing lines engineered for precision, automation, and industrial durability.
The modern automotive sector is undergoing a profound structural transition. As internal combustion engines (ICE) optimize for higher efficiencies and Electric Vehicles (EVs) require complex, multi-zone thermal management loops, the demands placed on fluid transfer pipes have escalated. Rubber hoses and single-layer plastic tubes are no longer sufficient to meet the rigorous safety and longevity demands of modern cooling systems.
Polyamide (PA) corrugated tubes—particularly those structured in three engineered layers—have emerged as the global industry benchmark. These components offer the perfect synthesis of lightweight design, high chemical resistance, mechanical flexibility, and low permeability. Producing these advanced systems requires specialized co-extrusion technologies capable of maintaining micron-level tolerance across multiple material boundaries simultaneously.
To manufacture these complex components, the BAOD Extrusion 3-layer PA co-extrusion line leverages state-of-the-art process controls. Our production lines integrate three highly efficient single-screw extruders positioned to feed a single co-extrusion crosshead die. This configuration ensures uniform melt flow and precise thickness distribution across the circumference of each layer.
The system features a high-speed vacuum corrugator equipped with custom-designed mold blocks. These blocks form the corrugations with high geometric fidelity, ensuring consistent wall thickness in both the peaks and troughs of the tube. This structural uniformity is critical for sustaining high pressure without fatigue or mechanical failure.
Our automation systems monitor melt pressure, temperature, line speed, and layer thickness in real time. Closed-loop control systems automatically adjust screw speeds to maintain tight dimensional tolerances, minimizing material waste and ensuring compliance with strict automotive quality standards. With integrated industrial ethernet communication protocols, the entire line is ready to interface directly with a factory's centralized Manufacturing Execution System (MES).
Jiangsu Baodie Automation Equipment Co., Ltd. (BAOD EXTRUSION) was founded in 2002. With foundations built on 18 years of design and manufacturing experience in Taiwan under the parent company (KINGSWEL GROUP), we established our advanced manufacturing base in Shanghai in 1999.
Today, with over 25 years of specialized plastic extrusion designing and manufacturing expertise, we focus on:
The global shift toward lightweighting in automotive manufacturing has driven double-digit growth in the demand for multi-layer thermoplastic tubes. The transition from heavy rubber and steel assemblies to light, durable PA corrugated structures is crucial for expanding EV battery ranges and meeting strict emissions regulations.
An analysis of international procurement demands, regulatory compliance, and China's advanced manufacturing capabilities.
Global procurement teams at Tier-1 automotive cooling systems suppliers are focusing on long-term raw material stability and manufacturing compliance. System architectures must perform under higher operating pressures and extreme chemical environments, driving the transition to multi-layer PA technologies globally.
Automobile manufacturers require strict validation, including adherence to standards like DIN 73378/74324 and SAE J844. Extrusion lines must be capable of processing specialized automotive-grade PA12 and PA612 materials while maintaining structural and layer adhesion tolerances consistently.
BAOD EXTRUSION offers advanced technological capabilities, competitive cost structures, and robust supply chain networks. By sourcing from our 16,000m² manufacturing facility in China, global OEMs benefit from rapid deployment, local engineering support, and high manufacturing quality.
Discover our comprehensive range of specialized extrusion systems designed for demanding industrial applications.
Engineered for narrow tolerance tubing utilized in medical, electronics, and automotive instrument applications. Delivers high output stability.
Specifically designed for automotive fuel lines, cooling loops, and vapor return systems utilizing advanced multi-component co-extrusion technology.
Designed for cleanroom environments, offering ultra-high speed processing for medical tubing with strict OD/ID tolerance requirements.
Engineered for high-output manufacturing of PA, PE, PP, and PVC corrugated tubes, offering excellent corrugator block cooling efficiency.
Ideal for automotive radiator hoses, integrating reinforced fibers with thermoplastic vulcanizates for premium pressure capability.
Delivers high-precision profiles utilizing TPV and PVC, designed for long-lasting cabin noise reduction and weather protection.
Stay informed with the latest technological developments, exhibition reviews, and engineering compliance insights from our global team.
BAOD EXTRUSION presented its latest R&D achievements at Booth 7.1C04, showcasing smart, high-efficiency plastic extrusion technologies designed for sustainable manufacturing.
Discover why BAOD is ranked among the top Customized Extrusion Line suppliers, offering solutions from detonating tubes to critical industrial piping.
A deep comparative study of Chinese high-precision multi-lumen extrusion technologies versus European manufacturing norms.
Understanding how leading OEM automotive tube extrusion line suppliers maintain strict international quality and compliance standards.
Exploring highly automated sealing strip technologies and the engineering innovations shaping cabin insulation for the automotive market.
Get answers to critical technical and commercial questions about 3-layer PA corrugated tube extrusion technology.
Complementary systems designed to work with our co-extrusion lines for high-output, automated production.
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