Explore our industrial range of high-efficiency polymer processing lines designed for global manufacturing compliance.
BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.) founded in 2002, is dedicated to the state-of-the-art designing, manufacturing, and sales of high-tier plastic extrusion equipment. Based on 18 years of high-performance design and engineering in Taiwan under our original parent company (KINGSWEL GROUP), we established our advanced manufacturing base in Shanghai in 1999.
We align our technology roadmap with demanding global automotive and industrial benchmarks, engineering solutions centered on:
Our manufacturing facilities and engineering capabilities provide key stability to international buyers requiring long-term security of supply.
"We combine engineering heritage from Taiwan with large-scale advanced manufacturing capacities in mainland China to deliver tier-1 quality extruders worldwide."
A comprehensive technical analysis of multi-layer polymer co-extrusion technology for modern automotive fluid management.
In the modern automotive sector, strict environmental standards (including China VI, Euro 6d, and US EPA Tier 3 emissions regulations) dictate zero-evaporative emissions targets for fuel systems. Traditional single-layer elastomer or monolayer Polyamide (PA) pipes are no longer viable because they fail to block fuel vapors (hydrocarbons) over extended operation cycles.
The response is the multi-layered functional tube. By combining different materials, manufacturers can achieve outstanding fuel permeation resistance, high mechanical resilience to road debris, chemical protection against road salt (zinc chloride), and cost control. The 5-layer PA extrusion line is the global benchmark for producing these tubes.
Achieving the standard layer configuration requires a finely balanced material distribution. The 5-layer co-extrusion die-head must distribute five melt streams with micrometer-level precision.
Shields against mechanical stone chips, environmental weathering, and prevents corrosion from zinc chloride salts.
Specially formulated graft copolymer that chemically bonds the outer PA12 to the inner barrier layer, preventing structural delamination.
The critical barrier core. EVOH blocks the diffusion of fuel molecules, reducing evaporative emissions to near-zero levels.
Ensures structural cohesion between the barrier core and the chemically different inner polymer matrix.
Direct fuel contact layer. Formulated for fuel compatibility and thermal stability. Often integrates conductive carbon black to discharge electrostatic energy built up during fuel flow.
International Tier-1 automotive suppliers (supplying to OEMs such as Volkswagen, Toyota, GM, and Tesla) require extrusion machinery that achieves maximum repeatability and minimal scrap rates. In modern automotive tube production, a variance of a few micrometers can compromise standard test compliance or lead to expensive recall liability.
The BAOD 5-layer PA tube extrusion line uses premium component sourcing:
Specially designed spiral distributor block allows low-shear flow of different viscosities, ensuring balanced thickness tolerances down to ±0.03mm.
Integrates ultra-fast ultrasonic online thickness measuring and gravimetric dosing feedback to ensure outer and core layers stay within parameters.
Two-stage vacuum sizing and cooling tanks ensure perfect roundness and diameter control of the tube, even at line speeds exceeding 45m/min.
BAOD designs specialized, high-capacity plastic extrusion machinery built for complex material processing challenges.
Ultra-precise medical and industrial piping extruder with high dimensional stability control.
Technical Details
Advanced multi-layer machinery tailored for corrugated protective sheaths and liquid tubes.
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Meets sterile class ISO cleanroom manufacturing standards with high line speeds.
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High speed corrugator blocks configured for cable management and flexible wire routing.
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Advanced process for reinforcement knitting, perfect for high pressure coolant system hoses.
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High efficiency custom automotive weatherstrip seal co-extrusion technology.
Technical DetailsThe automotive powertrain shift has changed the requirements for fluid circulation tubing. Internal Combustion Engines (ICE) primarily focus on fuel containment. In contrast, Hybrid (PHEV) and Battery Electric Vehicles (BEV) require sophisticated cooling systems to regulate batteries, electric motors, and power electronics.
Our co-extrusion lines are configured to run materials that meet the challenges of both technologies:
Requires high resistance to aggressive fuels (such as E10/E85 biofuels) and long-term chemical durability. 5-layer co-extrusion prevents fuel evaporation and helps vehicles meet environmental standards like Euro 6d.
Requires lightweight PA12, PA612, and PP multi-layer structural tubes designed to transport glycol-based heat transfer fluids. These tubes feature high flexibility for tight cabin installation layouts and long-term chemical stability.
To supply major automotive brands, manufacturers must verify compliance with international regulations. Extrusion equipment from BAOD is designed to produce tubes that comply with standard industrial frameworks:
We also support our customers through localized engineering service teams, commissioning assistance, and maintenance partners in Europe, the Americas, and Southeast Asia.
A look at the next generation of plastic extrusion technology, optimized for efficiency and resource conservation.
Modifying co-extrusion technology to process bio-based polyamides (such as PA11 derived from castor oil) without sacrificing performance or thickness tolerances.
Integrating machine learning algorithms and predictive modeling to automatically correct pressure variables and maintain precise wall thickness control.
Enabling the co-extrusion of recycled post-industrial scrap within middle layers to help manufacturers meet automotive recycling and sustainability targets.
Stay updated with the latest technological breakthroughs, trade shows, and regulatory compliance news from BAOD Extrusion.
From April 21–24, CHINAPLAS 2026 was successfully held in Shanghai. BAOD EXTRUSION presented its latest R&D achievements at Booth 7.1C04, showcasing smart extrusion and high-efficiency solutions...
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A detailed comparison of medical tubing dimensional controls, quality inspection processes, and tooling tolerances between Chinese manufacturing hubs and European standards...
Learn how BAOD maintains strict quality control and material tracking to meet automotive fluid delivery standards for international Tier-1 suppliers...
As electric vehicles demand quieter cabin environments, weatherstripping seals require higher precision. Explore the trends in co-extrusion technology for 2026...
Get professional answers to common questions about five-layer PA tube co-extrusion technology.
A 5-layer design is necessary to combine chemical resistance and low fuel permeability. The outer PA12 layer resists environmental factors, the inner PA6/PA612 layer withstands direct fuel contact, and the central EVOH layer blocks fuel vapors to meet strict emissions standards.
By using gravimetric dosing systems and online ultrasonic thickness measurement, our machinery can hold outer and inner diameter tolerances within ±0.03mm, even at production speeds over 40 meters per minute.
Delamination is prevented by using specialized tie-layer extruders and co-extrusion flow channels. Our custom-designed distributor die-head processes the adhesive layer at precise temperatures, ensuring a strong chemical bond across all layers.
Yes. The inner layer extruder can process conductive PA6/PA12 compounds containing carbon black. This dissipates static charge generated by fuel flow and meets global safety requirements (e.g., SAE J2260).
Our extruders feature custom screw designs and modular feed blocks. This allows operators to change between materials like PA11, PA12, EVOH, and PP with minimal downtime and material scrap.
We provide on-site installation, commissioning, calibration, and operator training. Our global field engineers and support partners help ensure smooth integration into customer facilities.
Discover our specialized medical, industrial, and micro-duct extrusion technologies.
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