Explore our primary high-speed manufacturing setups and dedicated downstream machinery designed for optimal process control and high-efficiency extrusion.
Polyamide (commonly known as Nylon, including PA6, PA66, PA11, and PA12) is the material of choice for demanding engineering applications due to its exceptional mechanical strength, heat resistance, and chemical stability. Translating these polymer characteristics into high-precision tubing requires highly specialized extrusion machinery designed to handle strict temperature bounds and rapid solidification curves.
As a leading Chinese designer and manufacturer, Jiangsu Baodie Automation Equipment Co., Ltd. (BAOD EXTRUSION) develops advanced co-extrusion technology. We empower factories worldwide to manufacture single-layer and multi-layer PA lines that conform to the most stringent automotive, aerospace, and medical certification specifications globally.
Founded in 2002, BAOD EXTRUSION is dedicated to designing, manufacturing, and servicing high-grade plastic extrusion machinery. Leveraging over 25 years of engineering experience originating from Taiwan-designed precision systems (via Kingswel Group), our mainland manufacturing base has consistently delivered state-of-the-art extrusion technologies to global enterprises.
Extruding Polyamide (especially PA11, PA12, and PA6) presents unique challenges compared to standard polyolefins like PE or PP. Polyamides possess a relatively sharp melting point, high crystalline properties, and a strong affinity for moisture. Designing an extrusion system capable of running continuously with minimal scrap requires a profound understanding of melt rheology and mechanical dynamics.
Polyamides degrade quickly when subjected to excessive shear or localized overheating. BAOD customizes its single-screw extruders with high-grade barrier screws. These screws feature precise compression profiles that ensure efficient solid-bed melting without introducing thermal degradation. Electromagnetic heating zones are integrated to provide fast, uniform heat inputs, maintaining control within ±1°C.
For applications such as automotive EV cooling lines and fuel piping, single-layer PA is often insufficient to prevent hydrocarbon permeation. High-end lines utilize multi-layer co-extrusion technology. BAOD's custom co-extrusion dies employ spiral or radial distributor designs, allowing the simultaneous distribution of up to five distinct polymer layers. The distribution ensures uniform wall thickness for each layer, resulting in optimal barrier performance and adhesion.
Continuous closed-loop material dosing ensures that deviations in throughput are dynamically corrected by modifying screw and puller speeds.
Our proprietary sizing sleeves operate under precise vacuum pressures, reducing drag while retaining high ovality control.
Using precision servo-driven belt pullers avoids physical deformation of the thin-walled tubes while they are cooling down.
Once the melted polymer exits the die-head, it must be rapidly cooled to preserve a micro-crystalline structure, which provides flexibility and toughness. Vacuum calibration tanks equipped with dual-chamber vacuum setups prevent tube collapse and sizing errors. Water temperature control is critical; maintaining water temperatures within 15°C to 20°C prevents crystallization stress inside the tube structure, which otherwise leads to micro-cracking during installation.
Procuring industrial extrusion machinery requires balancing capital expenditures (CAPEX) with long-term operating efficiencies (OPEX). Chinese manufacturers, led by innovators like BAOD, have successfully bridged the gap between competitive equipment pricing and premium European performance standards.
1. Full Integration of downstream automation: Chinese manufacturing clusters allow for highly rapid integration of specialized auxiliary units. From gravimetric batch blenders and ultrasonic wall thickness scanners to precision co-coilers, we deliver complete turn-key solutions.
2. Advanced Metallurgical Customization: By employing specialized screw materials (such as bimetallic alloys or fully hardened tool steels), BAOD guarantees high wear and corrosion resistance when processing glass-fiber reinforced PA or flame-retardant polyamide compounds.
3. Compliance and Local Support: Our systems feature standard components from Siemens, Omron, ABB, and SMC. This ensures that maintenance crews in Europe, North America, and Southeast Asia can easily procure replacement parts locally, minimizing downtime.
High-efficiency plastic extrusion equipment featuring precision engineering, safety compliance, and maximum operational uptime.
Designed for high-speed output of micro-bore piping and small industrial hoses with optimized tolerances.
Advanced multi-layer engineering for manufacturing highly flexible, fuel-resistant automotive components.
Sanitary, highly automated system configured for producing hospital-grade medical tubes at high volumes.
High line speeds combined with absolute shape stability for demanding electrical conduit production.
Engineered for high-pressure durability with integrated reinforced braiding and knitting capabilities.
High-automation profiles designed to create complex automotive weatherstrips with minimal tolerances.
The application of polyamide tubing spans critical sectors where product failure is not an option. Our systems are engineered to target these high-stress markets with tailored material and tooling solutions:
With the transition to Electric Vehicles (EVs), thermal management has become incredibly complex. Modern EVs require highly complex cooling loops that run on thin-walled PA12 hoses. These tubes must handle cooling fluids under high pressures and elevated temperatures. Our multi-layer co-extrusion systems allow companies to integrate protective external skins with low-permeability inner linings, lowering vehicle weight while maintaining structural safety.
Heavy duty trucks and machinery rely on air brakes for safety. The tubing must meet rigid specifications, such as DIN 73378 or SAE J844. Extruding PA11 or PA12 for these applications requires continuous monitoring. BAOD's extrusion systems feature integrated ultrasonic wall thickness scanners that cross-reference dimensions with puller speeds, ensuring absolute compliance with global highway safety frameworks.
For chemical transport lines, offshore pipelines, and hydraulic setups, polyamide tubes are combined with reinforcement layers. Our composite lines (like the TPV/PA braided composites) run multiple processes in a single line, from the primary liner extrusion and yarn braiding/knitting to the final outer protective sheath application. This single-pass approach drastically decreases production footprints and labor costs.
Stay updated with our latest technological showcases, exhibitions, and breakthroughs in precision plastic automation.
BAOD showcased its latest R&D achievements at Booth 7.1C04, presenting "Smart Extrusion · High-Efficiency Innovation" solutions that drew international interest.
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Authoritative answers to critical technical and procurement questions asked by engineering and purchase managers.
Complete your production setup with our high-end cooling tables, winding configurations, and co-extrusion components.
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