Custom Automobile PPS Tube Extrusion Lines

Precision Polymer Technology & Automation Systems for Modern Automotive Engineering

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Industry Whitepaper

Automobile PPS Tube Extrusion

As vehicle architectures shift rapidly toward higher thermal efficiencies and electric drivetrains, polymer line components must withstand increasingly hostile conditions. Polyphenylene Sulfide (PPS), a high-performance semi-crystalline thermoplastic, has emerged as the definitive material for high-temperature fluid delivery systems. Characterized by outstanding chemical resistance, thermal stability up to 220°C, and exceptional dimensional rigidity, PPS has effectively replaced heavier metal piping and traditional polyamide (PA) configurations.

Processing PPS, however, demands specialized extrusion capabilities. Due to its high melting point (~285°C) and tight crystallization window, standard extrusion hardware often encounters issues like melt degradation, poor thickness uniformity, and inner-surface roughness. This is where engineered, custom-designed PPS extrusion lines become vital to Tier 1 automotive suppliers.

Why Custom PPS Processing is Essential:

Critical Temperature Control: Barrel heating zones must maintain a stable gradient above 300°C to prevent premature polymer freezing.
Rheological Precision: Specialized screw designs prevent high shear stress, protecting polymer chain integrity.
Vacuum Calibration: Precision-engineered sizing sleeves compensate for PPS crystallization shrinkage.
Zero Tension Pulling: Advanced pullers prevent deformation in the cooling state.

Years Manufacturing Experience

16,000㎡

Modern Production Facility

100+

Extrusion Specialists

Extrusion Engineering

The Technical Blueprint of PPS Tube Extrusion Lines

Manufacturing automotive-grade PPS tubes requires a highly synchronized machinery layout, combining robust thermal control, high-pressure output, and sub-millimeter dimensional tracking. Below is the technical breakdown of the complete line.

1. High-Torque Single Screw Extruder

Equipped with our signature SJ Series Single Screw Extruder technology, utilizing custom bimetallic screws. Optimized L/D ratios handle raw PPS resin and glass-fiber reinforced composites without excessive shear heating.

2. Precision Calibration & Sizing

Features a custom Precision Auto Vacuum Sizing Tank. The multi-chamber design ensures accurate outer-diameter control and structural roundness under high-speed pull conditions.

3. Haul-off & Cutting

Uses high-precision TKB Series Belt Pullers and TKC Series Crawler Pullers. The line features integrated servo fly-knife cutters to ensure burr-free cuts essential for downstream automated assembly.

Localized Applications

Automobile PPS Tubes in Modern Vehicle Architecture

EV Battery Coolant Lines

With battery packs operating at higher voltages, cooling loops require reliable chemical resistance. PPS offers an ideal balance of heat resistance and dielectric properties, replacing traditional nylon lines.

Turbocharger Vapor Lines

ICE and hybrid powertrains subject engine compartment lines to temperatures over 150°C. PPS tubes handle high heat and oil vapor exposure without premature cracking or deformation.

Fuel System Lines

PPS exhibits very low fuel permeability. Multi-layer co-extruded PPS tubes serve as durable alternatives to metal lines, preventing hydrocarbon emissions.

Braking & Transmission Fluids

PPS maintains structural integrity when exposed to glycol-based brake fluids and synthetic transmission lubricants, ensuring long-term pressure retention.

Property Requirements	Polyphenylene Sulfide (PPS)	Polyamide (PA12)	Aluminum/Metal Tubing
Continuous Temp Limit	Up to 220°C	Up to 110°C - 130°C	> 300°C
Chemical Resistance	Outstanding (No known solvent < 200°C)	Moderate (Sensitive to strong acids/salts)	Susceptible to electrochemical corrosion
Weight Benefit	High (Low density polymer)	High (Low density polymer)	Poor (Significantly heavier)
Manufacturing Versatility	High (Direct extrusion/corrugation)	High (Direct extrusion/corrugation)	Low (Complex bending/welding required)

Supply Chain Leadership

Chinese Factory Engineering: Resilient, Efficient, Custom

As global automotive supply chains face increasing disruptions, Jiangsu Baodie Automation Equipment Co., Ltd. (BAOD EXTRUSION) provides a highly stable, integrated manufacturing framework. Established in 2002, with roots in high-quality design in Taiwan and manufacturing hubs in Shanghai and Jiangsu, BAOD combines advanced engineering with cost-effective operations.

Our 16,000m² facility integrates CNC machining, assembly, and testing under one roof. By sourcing components within a tight radius in China's advanced manufacturing hubs, we reduce lead times and insulation from international transport risks. Tier 1 partners benefit from competitive pricing without compromising on technical precision.

The BAOD Extrusion Edge

Integrated Quality Control: Every custom single screw extruder and vacuum tank is run-tested prior to shipment.
Rapid Prototyping: Customized die heads and cooling calibers can be designed and machined in-house within weeks.
Decades of IP Development: Over 25 years of refining high-speed calibration and automation technologies.

Future Roadmap

The Evolution of Automotive PPS Extrusion Technology

Multi-Layer Co-Extrusion

Future vehicle platforms require compound performance. We are developing 3-layer and 5-layer co-extrusion technology to bond PPS with outer protective elastomer jackets and inner carbon-black conducting layers, minimizing static build-up in high-velocity fuel flows.

Smart Diagnostics (IoT Integration)

By embedding sensors throughout the extrusion line, our control systems track real-time melt pressure, wall-thickness profiles, and vacuum levels. Operators receive predictive maintenance alerts before deviations occur.

Ultra-High-Speed Extrusion

Optimized screw geometries and high-efficiency cooling water paths will allow our next-generation PPS extrusion lines to run at higher line speeds while keeping outer-diameter variance under ±0.03mm.

About Us

Jiangsu Baodie Automation Equipment Co., Ltd.

BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.) founded in 2002, dedicated to designing, manufacturing and sales of plastic extrusion equipment. Based on 18 years experience of designing and fabricating high quality machines in Taiwan, the original parent company (KINGSWEL GROUP) invested in establishing extrusion machines manufacturing base in Shanghai in 1999.

With a long-term focus on precision extrusion, high-efficiency systems, automation, and safety protections, we deliver high-performance production lines to automotive, medical, and industrial partners worldwide.

Key Areas of Research & Development:

Precision extrusion technology for micro-diameters
High efficiency extrusion screw architectures
Highly automated extrusion process controllers
Safety protection and CE compliant machinery layouts

Corporate Updates

Our Latest News & Technical Journals

CHINAPLAS 2026 Concludes Successfully, BAOD EXTRUSION Showcases High-Efficiency Innovation

BAOD EXTRUSION showcased its latest R&D achievements at Booth 7.1C04, presenting "Smart Extrusion · High-Efficiency Innovation" solutions that address modern plastic manufacturing challenges.

Apr/30/2026 Read More +

Innovation and Reliability: BAOD EXTRUSION as Top 10 Customized Detonating Tube Extrusion Line Solution Provider

In sectors ranging from mining to large-scale infrastructure demolition, high precision tube structures are critical. BAOD leads development in high reliability, specialized lines.

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High Precision Multi-Lumen Tube Extrusion Line In China vs European Manufacturing Standards

Exploring the technical alignment between Chinese-engineered medical extrusion machinery and strict European medical manufacturing standards.

Mar/23/2026 Read More +

How China Leading OEM Automotive Tube Extrusion Line Supplier BAOD Maintains International Manufacturing Compliance

Understanding fuel line, brake hose, and cooling pipe manufacturing criteria to meet international automotive quality systems.

Mar/19/2026 Read More +

BAOD – Top Highly Automation TPV, PVC Automobile Sealing Strip Extrusion Line Supplier: Trends for 2026

Inside the systems ensuring modern electric vehicle cabins remain quiet and thermally controlled through automated sealing strip production.

Mar/17/2026 Read More +

Technical Q&A

Automotive PPS Extrusion Engineering FAQ

What are the primary temperature profile settings required for extruding PPS? +

Extruding PPS requires precise temperature profiles due to its high melting point (~285°C). The barrel zones are typically graduated from 290°C in the feed section up to 315°C–330°C in the metering zone and die head. Accurate control prevents melt freezing or excessive shear degradation.

How does BAOD guarantee the dimensional tolerance of small diameter automotive lines? +

We utilize a closed-loop system combining a precision vacuum tank and laser sizing systems. Real-time diameter readings automatically adjust puller speed and vacuum level, maintaining tolerances within ±0.03mm.

Can PPS be co-extruded with other materials like PA12 or TPU? +

Yes. Multi-layer co-extrusion is a key solution for cost reduction and impact modification. BAOD design co-extrusion crossheads allow multi-layer bonding (e.g., PPS/Adhesive/PA12) to leverage the mechanical benefits of both polymers.

How does glass fiber reinforcement affect screw and barrel wear during PPS processing? +

Glass fibers are highly abrasive. To prevent wear, BAOD uses specialized tungsten carbide bimetallic linings in our barrels and hard-faced, nitrided screws. This extends the service life of components by up to three times compared to standard carbon steel.