Advanced engineering systems designed for precision, high performance and operational flexibility
Automotive sealing profiles are highly complex elastomer composites. They must possess precise physical attributes to ensure modern vehicular cabins remain isolated from wind noise, thermal transfer, and moisture ingress. As electric vehicles (EVs) rise in market share, the demand for lightweight profiles and advanced materials like thermoplastic vulcanizates (TPV) and micro-foamed PVC has escalated. Producing these profiles demands an extrusion system designed around complex rheology, micro-dimensional stability, and metal-to-polymer bonding mechanisms.
At the heart of the Custom PVC Automotive Sealing Strip Extrusion Line is the screw and barrel assembly. Designed with a custom L/D (Length to Diameter) ratio tailored to the precise thermal properties of PVC/TPV compounds, our systems prevent shear-induced degradation. PVC is highly heat-sensitive; thus, precise thermal zoning using cooper-finned cooling jackets and microprocessor-controlled PID loops ensures temperature deviations do not exceed ±1°C. This control guarantees a uniform melt stream, minimizing internal stress in the extruded profile.
Simultaneous processing of soft PVC/TPV, rigid PVC, and steel strip inserts. Our die head design ensures flawless encapsulation and bonding without void formation or profile warping.
Utilizes chemical foaming agents with critical temperature control to construct lightweight profiles with closed-cell structures, reducing material usage and vehicle curb weight.
Integrated optical sensor measurement paired with follow-up flying knife/saw cutting systems ensures cut length tolerances within ±0.5mm at high line speeds.
BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.) was founded in 2002, fully dedicated to designing, manufacturing and global sales of advanced plastic extrusion equipment. Based on 18 years of pioneering engineering in high-quality machinery design in Taiwan, the original parent company (KINGSWEL GROUP) established our core production facility in Shanghai in 1999.
Through decades of iterative refinement and R&D investments, we have established ourselves as a global technology partner for automotive, medical, and industrial precision profile extrusion lines. Our focus remains heavily on smart automation, material science compatibility, and resource-efficient processing.
Discover More SystemsTangible scaling metrics confirming our commitment to global production reliability
Years Manufacturing Experience
Modern Production Factory Area
Highly Skilled Technical Specialists
Why Tier-1 automotive components manufacturers trust BAOD EXTRUSION for key projects
By leveraging our production hub in Jiangsu, BAOD accesses the world’s most comprehensive raw component cluster. We source precision machining, specialized tool steel, and raw casting metals at optimal velocity, reducing fabrication lead times to 60-90 days, while retaining full structural integrity.
Automotive manufacturing requires zero deviation. Our machines are designed according to strict European CE safety standards, utilizing UL-listed electrical cabinets and Siemens PLC architectures. This guarantees seamless integration into domestic plants across North America, Europe, and Asia.
Equipped with proprietary industrial IoT remote connectivity, our extrusion lines allow engineering diagnostics directly from our headquarters. For on-site physical support, BAOD collaborates with global maintenance networks to perform emergency service, tuning, and modular repairs.
Our custom co-extrusion systems utilize separate control stations for auxiliary extruders, allowing manufacturers to alter profile specifications smoothly. For instance, when producing a glass run channel with integrated flocking/coating or metal carriers, the pressure balancing within the co-extrusion die-head is critical to prevent metal slippage or polymer tearing.
Specific use-cases engineered for high-end vehicle assembly and integration
Engineered to process dense TPV or PVC outer skins co-extruded with internal micro-foamed cellular structures. Designed to match strict elastic recovery limits (ISO 815) so doors close with minimal effort while maintaining pressure over 10+ years of deployment.
These profiles must withstand elevated temperature zones under the hood. Our lines process heat-stabilized PVC composites or high-grade TPV that do not dry-rot, melt, or emit toxic fumes when exposed to continuous heat cycles.
Multi-material extrusion incorporating a rigid U-channel core for structural window frame retention, with soft lips co-extruded with an ultra-low-friction layer or polyurethane flocking to ensure windows slide smoothly without squeaking.
Deep-lip profiles designed to prevent heavy rainwater infiltration during high-speed driving. Our lines incorporate internal steel skeletons (stamped or solid wire) to resist wind shear and high velocity impacts without profile detachment.
Providing custom solutions built upon decades of practical Taiwan & Shanghai engineering expertise
Designed for micro-tubes requiring tight tolerances and automated speed calibrations.
Automated multi-layer fuel, cooling and brake hoses for combustion and electric vehicles.
Medical-grade cleanroom precision lines optimized for output stability and biological safety.
Advanced corrugated forming system with optimized cooling and block design.
High strength composite hoses with intermediate reinforcement layers for pressure resistance.
High automation co-extrusion lines tailored for dynamic automotive sealing components.
Technical answers to complex problems in automotive sealing profile extrusion
To achieve reliable adhesion, the steel strip is pre-heated using high-frequency electromagnetic induction before entering the die-head. The co-extrusion die-head is carefully designed with flow channels that balance melt pressure from the extruders. This surrounds the heated metal skeleton with polymer under high pressure, generating a cross-boundary bond that prevents delamination under strain.
Our lines are integrated with a closed-loop feedback gravimetric dosing system. This system measures the mass flow rate of raw pellets entering the extruder in real time, automatically adjusting the screw speed or haul-off speed if raw material density changes. This ensures weight-per-meter consistency down to ±1%.
Automotive sealing profiles have uneven thicknesses across their cross-sections, causing uneven shrinkage during cooling. BAOD addresses this by combining targeted vacuum sizing with localized water spray jets in the cooling tanks. This cools the thick parts faster than the thin parts, balancing internal stresses and keeping the profile straight.
Yes. By swapping the modular screw configurations and die heads, our lines can transition from PVC processing to TPV. TPV processing requires higher temperatures and different shear rates. The barrel is designed with customizable heating zones and specialized screw geometry to process both polymers on one line.
Technical articles detailing international trade shows, polymer technology, and compliance
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...
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In the controlled environment of a modern industrial facility, a single, hair-thin plastic tube wound onto a reel might seem unremarkable, but in quarrying and demolition, this detonating tube is critical. BAOD provides highly customized and safe lines...
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In sterile medical environments, multi-lumen catheters require microscopic internal channels. This article breaks down how BAOD aligns its precision tolerances and extrusion standards with strict European medical manufacturing requirements...
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How do vehicle OEMs ensure the absolute integrity of fluid lines, brake hoses, and cooling tubes? Learn how BAOD integrates quality auditing systems and complies with international safety and performance standards...
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As the automotive market transitions to electric vehicles, cabin insulation and lightweighting have become critical. Discover the 2026 trends for smart co-extrusion technology, micro-foaming, and high-speed automated line setups...
Read Article +Complementary downstream systems and specialized coating lines for robust automotive factories
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