Coextruded Tubing

FEATURES

• Mold Description
  Product Materials:	Pebax, Nylon, Polyethylene, Polyurethane, Polypropylene
  Mold Material:	S136ESR
  Number of Cavities:	1
  Glue Feeding Method:	Hot runner
  Cooling Method:	Water cooling
  Molding Cycle	2.5s

  
  

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  Service Features

  Material: Pebax, Nylon, Polyethylene, Polyurethane, Polypropylene

  Color: Customized

  Size: 2-18 Fr

  Shape: the diverse selection of shapes

  Wall thickness:Minimum 0.06 +/-0.01 mm

  Tolerance :+/- 0.01 mm                                                                                                                                                                                                                         
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  Focus on Quality and Service

  What materials does ANSIX provide for the Coextruded tube?

  Coextruded medical tubes can be made from a variety of materials, including thermoplastics,

  elastomers, and resins, and can be designed to have specific properties such as flexibility,

  clarity, and strength. The layers can also be optimized for different functions, such as drug

  delivery, fluid management, or electrical insulation.

  What medical devices are braided tubes commonly used in?

  Coextruded medical tubing is commonly used in various medical applications, such as

  intravenous (IV) therapy, cardiac catheterization, and respiratory therapy. The multiple layers

  of the tube can provide varying properties, such as a stif inner layer for improved torque

  momentum and kink resistance, and a soft outer layer for patient comfort. Additionally,

  extruded stripes can be added to the tubing for aesthetic purposes, x-ray visibility, or other visibility

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  Why Is Ansix Medical Best Customization For

  Coextruded Tubing Catheter?

  At Ansix Medical,we understand that each customer has unique needs and that a one-size-fits-all

  approach doesn't always work.

  That's why we offer personalized service and work closely with you to develop custom catheter

  designs that meet your exact specifications.

  Our team of skilld engineers and designers have years of experience in the medical device

  industry and are committed to producing the highest quality catheters using the latest technology

  and materials.

  We pride ourselves on our attention to detail and quality control measures, ensuring that every

  catheter we produce meets the highest standards for safety and performance.

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  Ansix Tech Launches Comprehensive Coextruded Tubing Initiative, Delivering End-to-End Value from Material Science to High-Volume Production

   

  *Industry veteran with 28+ years of experience unveils integrated manufacturing ecosystem for multi-layer tubing, promising slashed hard costs, rigorous quality validation, and guaranteed delivery timelines*

   

  SHENZHEN, China – April 24, 2026 – The global market for coextruded medical tubing is accelerating at an unprecedented pace. Valued at USD 2.32 billion in 2025, the segment is projected to surge to USD 4.95 billion by 2032, growing at a compound annual rate of 11.40 percent, according to industry analysts. The broader medical tubing market, meanwhile, is forecast to expand from USD 12.53 billion in 2025 to USD 18.41 billion by 2030, reflecting a CAGR of 8.0 percent. Driving this growth is a convergence of forces: the rapid adoption of minimally invasive surgical procedures, an aging global population, and relentless demand for multi-functional devices that can simultaneously deliver drugs, monitor patients, and navigate tortuous anatomy with precision.

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  In response to these market forces, Ansix Tech—a Hong Kong-headquartered precision manufacturer with over 28 years of injection molding and tubing expertise—has formally announced the comprehensive initiation of its coextruded tubing program. The initiative spans the entire product lifecycle, from conceptual design and prototyping to high-volume production, assembly, and validation. With four production bases across China and Vietnam, a 200,000-square-meter manufacturing footprint, more than 1,200 employees (including over 200 designers and engineers), and a fleet of 260 injection molding machines ranging from 30 to 2,800 tons, Ansix Tech possesses the industrial scale to handle projects ranging from medical micro-tubing to heavy-duty industrial conduits.

   

  But scale alone is not the story. The company’s deep-rooted philosophy—“Make Our Customers Successful”—manifests in an integrated engineering approach that systematically addresses five critical pain points in coextruded tubing manufacturing: material selection complexity, tooling precision, quality validation rigor, production cost containment, and supply chain reliability. This article examines how Ansix Tech is delivering measurable value across each of these domains.

   

  Project Initiation: Where Value Engineering Begins

   

  The journey of a coextruded tubing project at Ansix Tech begins long before any resin is melted or steel is cut. It starts with a collaborative Design for Manufacturability (DFM) process—a rigorous digital analysis that identifies and eliminates potential production pitfalls before they become costly problems. The company’s engineering team initiates a deep analysis of market requirements, regulatory standards, and functional needs, dissecting every aspect of the product design: wall thickness uniformity, lumen geometry, bending radius constraints, and connection interfaces.

   

  This digital-first approach leverages advanced mold flow simulation software to predict melt flow behavior, identify weld line locations, optimize gate placement, and anticipate shrinkage or warpage before tooling is manufactured. By applying DFM principles early in the development cycle, Ansix Tech can often simplify assemblies, reduce part counts, and streamline manufacturing processes—all of which translate directly into lower piece-part costs and shorter time-to-market for clients.

   

  Core Value: Solving the Multi-Layer Challenge

   

  Coextruded tubing is fundamentally about integrating multiple polymers into a single tubular structure, each layer serving a distinct function that no single material can fulfill alone. As industry analyses have noted, coextrusion technology enables performance combinations—lubricity, chemical resistance, kink resistance, biocompatibility—that are unattainable with single-material extrusion. Common applications include catheters, endoscopes, drug delivery systems, and a wide range of industrial fluid-handling components.

   

  Ansix Tech’s value proposition in this domain rests on four pillars: engineering partnership, material science expertise, precision tooling capability, and process optimization. Unlike fragmented service providers that handle only discrete stages of production, the company offers a unified platform integrating design, tooling, molding, secondary operations, and logistics. This end-to-end integration eliminates communication gaps between suppliers, accelerates project timelines, and ensures product consistency from prototype to full-rate production.

   

  Material Selection: The Science of Polymer Layering

   

  The selection of appropriate polymers is arguably the single most consequential decision in any coextruded tubing project. Each layer must meet its designated performance requirements—chemical compatibility for the inner lumen, structural integrity for the middle layers, tactile and sterilization resistance for the outer layer—while also adhering reliably to adjacent layers during the coextrusion process.

   

  Ansix Tech’s material science team guides clients through this complex decision matrix, applying a rigorous value-engineering approach to avoid both under-specification and over-specification. “Cost reduction isn’t just about negotiating material prices,” the company’s engineering philosophy states. “It’s about selecting the exact grade that meets all performance and regulatory requirements without unnecessary premium properties that inflate unit cost.”

   

  For medical applications, material selection must also satisfy stringent biocompatibility standards. Ansix Tech often guides clients toward medical-grade compounds that meet ISO 10993 and USP Class VI requirements. For three-way anesthesia tubing applications, the company has pioneered PVC‑free formulations, addressing growing concerns about plasticizers in medical environments. A representative multi-layer construction for medical tubing might include:

   

  Inner layer: High-density polyethylene or specialized polyurethane compatible with sensitive medications

   

  Intermediate bonding layer: Ethylene‑vinyl acetate (EVA) ensuring layer adhesion

   

  Outer protective layer: COPE or specialized elastomer providing flexibility and tactile response

   

  This stratified architecture allows each layer to be optimized for its specific function—medication compatibility on the interior, structural integrity through the middle, and user functionality on the exterior.

   

  For high-performance engineering applications such as endoscope “snake bone” tubing, Ansix Tech leverages deep expertise in two specific families of engineering thermoplastics: POM and PPS. POM (Polyoxymethylene), known by brand names such as Delrin®, offers exceptional stiffness, a low friction coefficient, and outstanding dimensional stability—properties that provide the precise articulation surgeons depend on. PPS (Polyphenylene Sulfide), by contrast, is the material of choice for applications demanding higher thermal resistance and superior chemical resistance, particularly to aggressive sterilization agents used in reusable endoscopes.

   

  Mold Flow Analysis (DFM) and Simulation-Driven Design

   

  The complexity of coextruded tubing molds—particularly those with multiple lumens, variable wall thicknesses, or tapered geometries—demands sophisticated simulation tools. Ansix Tech utilizes advanced mold flow analysis software (including technologies analogous to Moldex3D and Moldflow) to simulate filling patterns, predict weld line locations, and optimize gate placement before any metal is cut.

   

  In the coextrusion context, simulation must address an additional layer of complexity: the flow behavior of multiple polymers as they merge within the die. Interfacial instabilities in feedblock coextrusion—where different polymers meet and can develop irregular boundaries—are a well-known manufacturing challenge. Through simulation, engineers can predict these instabilities and adjust flow channel geometries, material viscosities, or processing temperatures to achieve clean, stable layer interfaces.

   

  The DFM analysis also performs cost‑benefit modeling at the design stage, evaluating how product geometry modifications affect mold cost, material consumption, and cycle time. This early-stage optimization, enabled by simulation, enables designers to reduce manufacturing costs before tooling commitments are made, ultimately making products more competitive in the marketplace.

   

  Die and Mold Design: Engineering for High-Volume Production

   

  The transition from simulation to physical tooling is where Ansix Tech’s 28+ years of manufacturing experience become tangible. Coextruded tubing dies—whether feedblock systems or multi-manifold designs—must maintain precise layer thickness uniformity across the entire production run, often while processing polymers with significantly different melt viscosities and thermal behaviors.

   

  Key Design Priorities

  Ansix Tech’s die engineering focuses on several critical parameters:

   

  Layer distribution systems. Multi-channel flow distributors must ensure each polymer layer reaches the die exit with uniform thickness and consistent interface boundaries. For three-layer or five-layer constructions, this requires carefully balanced flow paths that compensate for viscosity differences between materials.

   

  Flow channel geometry. The shape, depth, and angle of flow channels directly affect melt distribution. Ansix Tech optimizes these geometries through iterative simulation and empirical validation, ensuring that each polymer stream arrives at the merge point with the correct pressure and velocity.

   

  Cooling system design. Effective cooling is perhaps the most underappreciated factor in high-volume tubing production. Inadequate or non‑uniform cooling leads to part distortion, dimensional instability, and extended cycle times. Ansix Tech designs conformal cooling channels that closely follow the part geometry, maximizing heat transfer efficiency and enabling faster production rates. Advanced cooling mandrels with multi‑zone temperature control provide precise thermal management, reducing residual stress and improving dimensional repeatability.

   

  Ejection systems. For tubing components with complex geometries or multi‑cavity molds, proper ejection is essential to prevent part damage during demolding. The company’s molds incorporate robust ejector pin arrangements and air‑assisted ejection systems where needed, ensuring consistent part release without cosmetic defects.

   

  Manufacturing Challenges and Solutions

  The fabrication of coextruded tubing dies presents significant manufacturing hurdles. Multi‑layer dies require exceptional precision: flow channel surfaces must be polished to mirror finishes to minimize material drag and pressure drop. Concentricity between mandrel and die body must be maintained within microns. For multi‑lumen tubing, the positioning of individual lumen cores within the die requires specialized machining techniques and rigorous inspection.

   

  Ansix Tech’s in‑house tooling operation—which has built over 30,000 molds to date—addresses these challenges through automated machining capabilities, including high‑speed CNC milling and electrical discharge machining, supported by rigorous in‑process inspection. The company’s average mold trail count of just two trials per tool reflects the precision of its design and manufacturing processes.

   

  Quality Validation: From Prototype to Production Certification

   

  In regulated industries—particularly medical devices—quality is not a final inspection step; it is a system embedded throughout the entire manufacturing process. Ansix Tech operates under multiple quality management certifications, including ISO 9001, ISO 14001, IATF 16949 (automotive), and ISO 13485 (medical devices). This certification portfolio is critical for clients in regulated sectors, signaling an unwavering commitment to quality management, environmental responsibility, and the stringent requirements of medical manufacturing.

   

  Stage‑Gate Development Process

  The company employs a structured stage‑gate development process to de‑risk production:

   

  DFM and Simulation. As described above, advanced simulation predicts flow, cooling, shrinkage, and potential defect zones before tooling fabrication begins.

   

  Rapid Prototyping. Functional prototypes—sometimes using material jetting or other additive techniques to create mold inserts—allow for early validation of fit, seal, ergonomics, and mechanical performance before hard tooling is committed.

   

  Manufacturing Validation (MV). Pilot‑scale production runs establish process stability, generate initial samples for customer qualification, and finalize quality control protocols. This phase validates that the production process can consistently meet all specified requirements.

   

  Process Validation (PV). Formal process qualification demonstrates that the manufacturing process—operating within defined parameters—produces parts that meet all specifications. This typically includes initial process capability studies (Cpk ≥ 1.33), gage repeatability and reproducibility studies, and control plan development.

   

  Large‑Scale Production Certification. The mold, process, and output are audited to ensure consistent delivery of production volumes meeting all specifications. Ongoing statistical process control (SPC) monitors key product characteristics throughout production.

   

  Testing Protocols

  For medical tubing applications, Ansix Tech implements a comprehensive suite of quality tests aligned with international standards:

   

  Dimensional verification. Wall thickness and diameter are inspected to tolerances often below 0.01mm, using precision measurement systems.

   

  Tensile and burst testing. Determines mechanical strength, elongation, and burst pressure resistance, following methods such as ASTM D638 and ASTM D1599.

   

  Flow rate validation. Measures fluid delivery rates using precision flow meters and peristaltic pump simulators.

   

  Biocompatibility assessment. For medical‑grade products, testing follows ISO 10993 guidelines for cytotoxicity, sensitization, and systemic toxicity.

   

  Leak and pressure integrity. Static and dynamic pressure testing confirms seal integrity under operating conditions.

   

  Sterilization compatibility. Products are validated against common sterilization modalities including ethylene oxide (EtO), gamma irradiation, and autoclave cycles.

   

  For each shipment, Ansix Tech provides traceability documentation, including batch‑level test reports and certificates of conformance, ensuring full visibility into raw material origins, process parameters, and quality control results.

   

  Cost Reduction: A Systematic, Multi‑Pronged Strategy

   

  Perhaps the most compelling value proposition presented by Ansix Tech’s coextruded tubing initiative is its systematic approach to cost reduction. The company has achieved documented cost savings of up to 30 percent on certain medical components through a combination of material optimization, process refinement, and efficiency enhancements.

   

  Material Cost Optimization

  Value engineering begins with material selection. By guiding clients toward the precise material grade that meets all functional and regulatory requirements—rather than defaulting to premium grades—Ansix Tech reduces material costs without compromising performance. For high‑volume applications, these savings compound significantly. The company also explores multi‑layer constructions that use less expensive materials in non‑critical layers while reserving high‑cost specialty polymers for functional surfaces, much as leading tubing manufacturers have demonstrated with four‑ and five‑layer coextruded tubing achieving cost reductions up to 50 percent.

   

  Process Efficiency Gains

  Cycle time reduction is a primary lever for per‑unit cost reduction. Ansix Tech’s optimized cooling system designs minimize cooling time—often the longest phase of the production cycle. Advanced mold flow analysis identifies opportunities to balance filling and packing, reducing residual stress and enabling faster part ejection. The company’s automated machining capability (70 percent automated machining ratio) reduces tooling lead times and ensures mold consistency across multiple production cells.

   

  Waste Reduction

  In extrusion processes, start‑up waste, transition waste between material changes, and scrap from out‑of‑tolerance production all add to total delivered cost. Ansix Tech’s process control systems monitor key parameters in real time, automatically flagging deviations before they result in non‑conforming product. Optimized cutting processes minimize head‑and‑tail waste, while statistical process control maintains stable operation within specification limits.

   

  Economies of Scale

  With 260 injection molding machines and the ability to run high‑cavitation molds, Ansix Tech spreads fixed costs across large production volumes, reducing per‑unit tooling amortization and setup costs. The company’s multiple production bases also provide manufacturing redundancy and geographic flexibility, enabling cost‑effective responses to shifting tariff and logistics conditions.

   

  Capacity and Delivery: Building Supply Chain Reliability

   

  In coextruded tubing markets, production capacity and on‑time delivery are as critical as product quality. Ansix Tech’s manufacturing footprint—four production bases in China and Vietnam—provides both scalability and supply chain resilience. Key capacity metrics include:

   

  200,000 square meters of total building area

   

  260 injection molding machines, 30 to 2,800 tons

   

  Over 1,200 employees, with more than 200 dedicated designers and engineers

   

  30,000+ molds built since the company’s founding in 1998

   

  Rapid Delivery Commitment

  The company’s integrated ecosystem—design, tooling, molding, and logistics under one platform—eliminates the delays inherent in coordinating multiple specialty suppliers. DFM and simulation work compress the development cycle by identifying issues before tooling fabrication. Optimized mold designs with conformal cooling reduce production cycle times, increasing effective daily output. For clients requiring just‑in‑time delivery, the company maintains strategic inventory buffers and offers flexible packaging options tailored to customer requirements, including spooling, cut‑to‑length, and custom labeling.

   

  Packaging and Logistics: The Final Mile

   

  Packaging for coextruded tubing must protect product integrity during transit while meeting customer handling and regulatory requirements. Ansix Tech’s packaging solutions are tailored to specific product geometries and applications:

   

  Spooling. For long continuous lengths, precision spooling ensures damage‑free transport and convenient downstream processing.

   

  Cut‑to‑length. Custom lengths are cut, inspected, and packaged in clean bags or trays, with each batch documented for full traceability.

   

  Cleanroom packaging. For medical applications, packaging is performed in controlled environments to prevent contamination, with validated sterilization compatibility.

   

  Each shipment includes a certificate of conformance and batch‑level test data, providing customers with immediate verification of product quality and material traceability.

   

  Industry Experience and Proven Reliability

   

  Ansix Tech’s 28+ years of manufacturing experience span diverse industries: automotive, medical devices, personal care, consumer electronics, commercial communications equipment, mobile and wearable devices, and smart home products. The company has built 30,000 molds and delivered millions of precision components worldwide.

   

  This cross‑industry experience informs the company’s approach to coextruded tubing. Lessons learned in automotive fluid systems—where chemical resistance and heat stability are paramount—translate directly to medical device components. Techniques refined in high‑volume consumer product molding enable cost‑effective medical tubing production. The company’s ISO 13485 certification, specifically, ensures that medical device clients receive the documented quality systems and regulatory compliance required for market approval.

   

  Future Outlook: The Coextruded Tubing Market Beyond 2026

   

  The coextruded medical tubing market is entering a period of accelerated transformation, driven by several trends that align directly with Ansix Tech’s core competencies.

   

  Multi‑layer innovation. Three‑layer tubing currently accounts for 54.7 percent of the market, but five‑layer and higher‑layer constructions are growing at 12.8 percent annually. As clinical requirements become more demanding—for drug‑eluting catheters, antimicrobial surfaces, and enhanced radiopacity—multi‑layer geometries will become the standard rather than the exception.

   

  Regulatory convergence. The harmonization of medical device regulations across major markets continues to raise the bar for quality systems and documentation. Manufacturers with robust quality certifications, including ISO 13485, are better positioned to serve global customers.

   

  Sustainability pressures. Manufacturers are shifting toward environmentally optimized extrusion lines, driven by energy cost increases of 40 to 60 percent in most industrial markets since 2021. Biobased materials and energy‑efficient production will differentiate market leaders in coming years.

   

  Supply chain regionalization. Tariff adjustments and logistics disruptions are prompting medical device OEMs to reevaluate their supply chains. Ansix Tech’s multiple production bases in China and Vietnam provide geographic flexibility and risk mitigation for global clients.

   

  Conclusion

   

  Ansix Tech’s comprehensive coextruded tubing initiative represents more than a capacity expansion; it embodies a strategic commitment to solving the fundamental challenges of multi‑layer tubing manufacturing. Through integrated DFM and mold flow analysis, the company eliminates design flaws before tooling investment. Through precision die engineering with optimized cooling systems, it achieves dimensional accuracy and production efficiency. Through rigorous stage‑gate quality validation, it delivers products that meet the most demanding regulatory standards. And through systematic cost optimization—addressing material selection, cycle time, waste reduction, and economies of scale—it returns measurable savings to clients.

   

  For medical device manufacturers, industrial equipment producers, and any organization requiring high‑performance multi‑layer tubing, Ansix Tech offers a rare combination: the technical depth of a specialty engineering firm, the manufacturing scale of a global industrial player, and the collaborative ethos of a true partner.

   

  About Ansix Tech

   

  Founded in Hong Kong in 1998, Ansix Tech is a global leader in injection molding and coextruded tubing solutions, serving clients across medical, automotive, consumer electronics, and industrial markets. The company holds ISO 9001, ISO 14001, IATF 16949, and ISO 13485 certifications and operates four production bases in China and Vietnam. Ansix Tech’s mission is Make Our Customers Successful.

  Media Contact:

  Email: info@ansixtech.com

  Website: www.ansixtech.com

  Ansix Tech Co Ltd

  If you have any plans related to Coextruded Tubing , you can contact us at any time. We will turn your ideas into reality, let you realize your dreams, and obtain large orders from the market. Our contact information is info@ansixtech.com. Or contact our CTO, mail: stephen@ansixtech.com

   

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