Coil Reinforced Tubing
FEATURES
Mold Description
Product Materials:
Stainless steel, Nitinol, Nylon, Tungsten
Mold Material:
S136ESR
Number of Cavities:
1
Glue Feeding Method:
Hot runner
Cooling Method:
Water cooling
Molding Cycle
42.5s
Ansix Tech Embarks on Landmark Coil Reinforced Tubing Project: Redefining Value, Quality, and Efficiency in Precision Extrusion Manufacturing
*With over 28 years of manufacturing expertise, Ansix Tech is leveraging its integrated ecosystem of design, tooling, extrusion, and quality systems to deliver industry-leading coil reinforced tubing solutions that solve critical customer challenges while driving down costs.*
SHENZHEN, China – As global demand for coil reinforced tubing accelerates—with the market projected to grow from USD 1.58 billion in 2025 to USD 2.86 billion by 2032 at a CAGR of 7.8%—manufacturers across medical devices, automotive systems, industrial fluid transfer, and oil & gas sectors face mounting pressure for higher performance, tighter tolerances, and more competitive pricing. At the forefront of addressing these challenges is Ansix Tech, a company with over 28 years of precision manufacturing heritage that has now officially launched its dedicated Coil Reinforced Tubing project initiative.
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The project represents a strategic expansion of Ansix Tech’s vertically integrated manufacturing ecosystem—spanning everything from prototype design and mold tooling to high-volume extrusion, secondary processing, assembly, and logistics. This comprehensive approach is purpose-built to deliver what customers demand most: uncompromising quality, rapid time-to-market, and meaningful cost reduction without sacrificing reliability.
Client-Value Proposition: Solving the Industry’s Most Persistent Challenges
Coil reinforced tubing—featuring flexible polymer tubes reinforced with metallic or polymer coils that provide enhanced kink resistance and structural integrity while maintaining flexibility—is essential for end-use applications where both flexibility and pressure resistance are critical. However, bringing such products to market at scale presents manufacturers with formidable hurdles.
“The coil reinforced tubing industry faces significant margin pressures from fluctuating raw material costs, particularly for specialized polymers and high-grade stainless steel,” notes industry research, with many key materials experiencing price increases of 20–30% since 2022. Furthermore, medical device applications require stringent regulatory compliance, which directly impacts development timelines and costs, while oil and gas applications demand exceptional durability under extreme operating conditions.
Ansix Tech’s new coil reinforced tubing project directly addresses these pain points through five core value pillars:
Elimination of Manufacturing Risk: For customers in medical, automotive, and industrial sectors, the stakes are exceptionally high. A one-micron deviation in catheter inner diameter or a defect in a fluid connector can trigger product recalls, operational failures, and significant financial losses. Through precision engineering and rigorous process validation, Ansix Tech eliminates these risks from the outset.
Scientific, Not Artisanal, Manufacturing: Leveraging advanced simulation, innovative process controls, and strategic material science, Ansix Tech delivers unparalleled reliability and value, systematically driving down costs for partners without compromising an iota of quality.
Rapid, De-risked Product Development: From prototype to mass production, the company’s integrated ecosystem eliminates communication gaps, accelerates project timelines, and ensures consistency from concept to delivery.
Application-Specific Performance Optimization: Whether for minimally invasive surgical instruments requiring extreme flexibility, automotive wiring harnesses needing thermal stability, or industrial fluid transfer systems demanding high burst strength, Ansix Tech engineers tubing solutions tailored to the exact end-use requirement.
True Partnership, Not Just Transactional Supply: The company’s corporate mission is to “Make Our Customers Successful”—a philosophy embedded into every project phase, from collaborative DFM reviews to ongoing production support.
From Concept to Production-Ready: The Ansix Tech Development Workflow
The journey of a coil reinforced tubing component begins long before any material is extruded. Ansix Tech’s development approach follows a disciplined, multi-phase workflow that de-risks every step and ensures repeatable quality at scale.
Phase 1: Collaborative Design for Manufacturability (DFM) & Mold Flow Analysis
At the core of Ansix Tech’s engineering excellence lies the rigorous Design for Manufacturability (DFM) analysis. This phase involves collaborative in-depth simulation that examines part geometry, material behavior, and mold functionality. Engineers utilize advanced simulation software to conduct mold flow analysis, predicting how molten plastic will fill the cavity, where air traps or weld lines may form, and how the part will cool and shrink. For thin-wall tubing applications, uniform flow and cooling are paramount—virtual testing is indispensable for preventing warpage and ensuring dimensional stability.
The DFM review evaluates critical design aspects including:
Suitable materials and applicable mold shrinkage allowances
Tool/part split line positions
Optimum gate feed position and type
Ejection style and positions
Wall section thicknesses
Potential levels of distortion and sink
Draft angles and venting recommendations
As industry experts note, DFM is an engineering review that evaluates the manufacturing feasibility of a product design and highlights any manufacturing concerns before proceeding with tooling. For coil reinforced tubing, where wall thicknesses can be as thin as fractions of a millimeter and concentricity requirements are measured in microns, this virtual validation is not optional—it is essential.
Ansix Tech’s integration of Moldflow simulation goes beyond traditional DFM by predicting how the plastic will behave inside the extrusion die. Filling patterns are analyzed to ensure a balanced fill, cooling efficiency is optimized to minimize cycle time and prevent warpage, and potential deformation is addressed before any steel is cut. This “test before investment” approach reduces project risk, allowing design improvements to be made at a stage where modification costs are still low, ensuring that final production molds run right the first time.
Phase 2: Strategic Material Selection – The Foundation of Performance and Cost Control
Coil reinforced tubing performance is directly determined by material choice. Ansix Tech guides customers through a rigorous material selection process, balancing mechanical properties, chemical compatibility, sterilization requirements, and cost.
For tubing requiring rigidity and dimensional stability in applications such as diagnostic equipment, materials like polycarbonate (PC) or polysulfone (PSU) are often specified. Their amorphous structure provides excellent dimensional stability and transparency. For flexible, kink-resistant medical tubing requiring biocompatibility and elasticity, thermoplastic polyurethane (TPU) and silicone-based TPEs are selected.
For the reinforcement coil itself, Ansix Tech works with a range of materials including stainless steel, Nitinol, polyethylene terephthalate (PET), and fiber reinforcements, selecting the optimal material based on application-specific requirements for torqueability, flexibility, and crush resistance. For applications where both flexibility and pressure resistance are critical—such as in catheter shafts for navigating the body’s tortuous pathways—the combination of polymer matrix and coil reinforcement is engineered to deliver increased torqueability, maintained flexibility, resistance to collapsing or buckling, and superior kink resistance compared to non-reinforced designs.
Crucially, Ansix Tech’s material optimization expertise extends to cost management. This includes recommending high-flowability polymers that lower injection pressure and energy consumption, suggesting “wide-specification” grades of resin where performance requirements allow, and leveraging bulk purchasing capabilities across the company’s four production bases in China and Vietnam with over 260 injection molding machines and total building area of approximately 200,000 m².
Phase 3: Mold Tooling – Engineering for High-Volume Production Excellence
The mold is the cornerstone of any successful extrusion and injection molding project. For coil reinforced tubing, mold design presents unique challenges that demand deep technical expertise.
Flow Channel and Runner System Design: Runner systems are meticulously engineered to deliver material to the cavity with minimal pressure drop and shear heating. For multi-lumen and coil-embedded tubing designs, the runner geometry must be precisely calculated to ensure uniform material distribution across all flow paths. Hot runner systems are often employed to eliminate cold sprues and runners, achieving direct material savings of nearly 15% per cycle and reducing regrind handling.
Cooling System Engineering: One of the most critical aspects of high-volume production is cooling efficiency. Industry research indicates that 50% to 70% of an injection molding cycle time is dedicated to cooling. Ansix Tech designs cooling channels to maintain turbulent water flow—verified by flowmeter data—to ensure maximum heat extraction efficiency. Channel layouts are optimized to maintain uniform temperature gradients across the part, preventing differential shrinkage and warpage. In coil reinforced tubing applications, where the embedded coil can affect thermal conductivity, cooling channel placement becomes even more strategically critical.
Ejection System Design: The ejection system must apply uniform force to the molded tubing without causing deformation, drag marks, or surface damage. For thin-wall tubing, this requires carefully calculated ejector pin placement, surface area distribution, and actuation sequences coordinated with the mold opening cycle.
Injection Gate Positioning: Through mold flow analysis, Ansix Tech engineers evaluate multiple gate locations to find the optimal balance between fill pressure and weld line placement—avoiding positioning weld lines in high-stress or highly visible areas. In coil reinforced tubing, where the interface between the polymer matrix and the embedded coil is a potential failure point, gate positioning directly influences fusion quality and layer adhesion.
Mold Material Selection: For high-volume production runs, mold durability is paramount. Ansix Tech selects mold steels based on expected production volumes, material abrasiveness, and dimensional tolerance requirements. For glass-fiber reinforced polymers, which can be highly abrasive, hardened tool steels with enhanced wear resistance are specified to maximize mold life and minimize maintenance downtime.
Mold Manufacturing Challenges and Process Flow: The manufacturing of precision extrusion and injection molds for coil reinforced tubing involves multiple high-stakes steps. CNC machining with 70% automated machining ratio, wire EDM for intricate cavity details, and surface finishing to mirror-like quality are all executed under stringent quality control. Ansix Tech has built over 30,000 molds since its establishment, achieving mold trail averages of just 2 times per tool—a testament to the robustness of its DFM-driven design philosophy.
Phase 4: Extrusion Process Optimization – Balancing Efficiency, Quality, and Cost
The extrusion of coil reinforced tubing presents unique process control challenges. Core mandrels play a critical role in maintaining extremely tight, repeatable tolerances and overall process control. For many reinforced tubing programs, mandrels are fundamental—their engineering characteristics directly affect extrusion stability, de-coring efficiency, yield, throughput, and overall process stability.
Ansix Tech approaches extrusion process optimization through several interconnected strategies:
Process Parameter Optimization: Melt temperature uniformity, head pressure stability, haul-off speed consistency, and winding tension uniformity are all tightly controlled. Variability in these factors can directly affect subsequent steps including extrusion consistency, de-coring, and final yield.
Continuous Improvement Through Lean Manufacturing: Lean principles are applied to identify opportunities to improve process efficiencies, reduce manufacturing time and cost, and reduce response time. Activities focus on eliminating processes that don’t add value for the customer.
Energy Cost Reduction: Plastification—one of the most energy-intensive steps in plastics processing—is continuously monitored and optimized. Precise process control models help reduce energy costs while making process control more efficient.
In-Process Quality Monitoring: Real-time sensors monitor critical parameters including melt pressure, melt temperature, line speed, and dimensional measurements. Any deviation triggers immediate corrective action, preventing defect propagation to downstream operations.
Post-Extrusion Processing Automation: Automated coiling, cutting, and packaging systems are integrated directly with extrusion lines to eliminate handling-induced defects and reduce labor costs. Proper coiling tension is critical, as inconsistent tension can lead to coil deformation or collapse during handling, while improper packaging can result in loose bundles or product damage.
Quality Validation: A Multi-Layered Assurance Framework
For customers in regulated industries such as medical devices and automotive, quality is not negotiable. Ansix Tech has built a comprehensive quality management system that has successfully passed ISO 9001, ISO 14001, IATF 16949, and ISO 13485 certifications—demonstrating capability across general manufacturing, environmental management, automotive, and medical device quality standards.
The quality validation framework encompasses:
Raw Material Incoming Inspection: Every shipment of polymer resin is verified against material certificates. For coil materials, tensile strength, diameter consistency, and surface finish are inspected before production release.
First Article Inspection (FAI): Before full production release, first-shot samples undergo comprehensive dimensional measurement, visual inspection, and functional testing. All dimensions are verified against print specifications, with CMM and optical measurement tools used for high-precision features.
In-Process Quality Control (IPQC): Throughout production runs, samples are collected at predetermined intervals and tested for dimensional compliance, visual defects, and mechanical properties including burst pressure, kink resistance, tensile strength, and—where applicable—biocompatibility.
Statistical Process Control (SPC): Production parameters are continuously monitored and charted. Control limits are maintained, and any trends toward out-of-control conditions trigger process adjustment before non-conforming product is produced.
Performance Validation Testing: Finished tubing undergoes rigorous testing including:
High-pressure testing (up to 15,000 psi where required)
Kink resistance and collapse testing
Burst pressure validation
Dimensional and concentricity verification
Layer adhesion strength testing
Torque transmission testing (where applicable)
Certification and Traceability: Every packaged unit can be supplied with material certificates, and full traceability is maintained from raw material batch to finished product. For ISO 13485-certified medical device production, this traceability is maintained throughout the product lifecycle.
Cost Reduction Strategy: Delivering the Lowest Total Cost of Ownership
Perhaps the most compelling aspect of Ansix Tech’s coil reinforced tubing project is its holistic approach to cost reduction. In an industry where raw material price volatility and competitive pressures erode margins, the company has systematically identified and addressed cost drivers across the entire value chain.
Material Cost Optimization: Through strategic material selection and bulk procurement, Ansix Tech reduces raw material costs without compromising performance. Rather than automatically specifying premium, tightly-specified resins, engineers work with material suppliers to select “wide-specification” grades that meet all functional requirements at significantly lower cost per pound. For high-volume programs, material savings of 10–20% are routinely achieved.
Efficiency-Driven Cost Reduction: The energy-intensive plastification process is continuously optimized through predictive modeling and process controls, reducing electricity consumption per unit of output. Hot runner systems eliminate cold sprues and runners, achieving direct material savings of nearly 15% per cycle. Automated production lines reduce labor costs while improving consistency.
First-Pass Success Through Simulation: Ansix Tech’s investment in advanced mold flow analysis and DFM reviews pays dividends in avoided costs. By identifying and correcting flow imbalances or warpage issues digitally, the company prevents the need for expensive, time-consuming steel adjustments after molds are built. This “first-pass success” philosophy is a cornerstone of the company’s cost-reduction strategy.
Lean Manufacturing and Waste Elimination: Lean methodologies eliminate activities that add no customer value, reducing cycle times, flow times, and overall manufacturing costs. Continuous improvement activities (kaizen events) target precise improvements in specific areas of the business, mapping existing processes, analyzing for inefficiencies, implementing solutions, and monitoring results.
Long-Term Partnership Pricing: With multiple production bases across China and Vietnam and a global customer base spanning automotive, medical, consumer electronics, and industrial sectors, Ansix Tech leverages economies of scale to offer competitive pricing without sacrificing quality or service levels.
Capacity Expansion and Delivery Assurance
Meeting customer demand for coil reinforced tubing requires more than technical capability—it demands production capacity and reliable logistics. Ansix Tech’s manufacturing infrastructure is built for scale, with a total building area of approximately 200,000 m² housing over 260 injection molding machines ranging from 30 tons to 2,800 tons. The company employs over 1,200 people, including more than 200 designers.
For the coil reinforced tubing project, dedicated extrusion lines have been allocated with surge capacity built in to handle demand fluctuations. This operational flexibility enables Ansix Tech to respond to short-term changes without compromising quality, stability, or long-term scalability.
Delivery performance is supported by:
Strategic raw material inventory for common specifications
In-house tool maintenance capabilities minimizing unplanned downtime
Automated packaging and logistics systems
Multiple production locations allowing geographic supply optimization
Typical lead times aligned with customer production schedules
The company’s integrated ecosystem—eliminating communication gaps between design, tooling, extrusion, and logistics—ensures that project timelines accelerate and consistency is maintained from concept to delivery.
Industry Experience: The Ansix Tech Advantage
With over 28 years of injection molding and precision manufacturing heritage, Ansix Tech brings a wealth of experience directly applicable to coil reinforced tubing. The company has successfully executed projects across dual-shot molding, gas-assisted injection molding, micro-precision parts, and complex structural components—each demanding the same rigor in DFM, material science, and process control that coil reinforced tubing requires.
Key differentiators include:
Science-Driven, Not Trial-and-Error: Ansix Tech has institutionalized a scientific molding methodology where parameters are determined through simulation and data, not intuition. Cooling time, fill speed, packing pressure—all are optimized based on predictive models validated by real-world production data.
Vertical Integration Under One Roof: Unlike fragmented service providers, Ansix Tech offers a unified platform encompassing design, engineering, tooling, production, secondary operations, assembly, and logistics. This eliminates handoff risks and reduces total project cycle time.
Regulatory-Ready Quality Systems: With ISO 13485 certification for medical device manufacturing, the company is qualified to serve the most demanding regulated industries.
Global Footprint, Local Service: Production bases in both China and Vietnam provide customers with supply chain flexibility, risk mitigation, and optimized logistics.
Industry Impact and Future Outlook
The global coil reinforced tubing market is being driven by several powerful trends. The medical device sector, where coil reinforced tubing is essential for minimally invasive surgical instruments and diagnostic equipment, is expected to reach $800 billion by 2032. The automotive industry’s shift toward electrification is creating demand for specialized tubing solutions in battery cooling systems and wiring harnesses, with electric vehicle production estimated to grow at 25% CAGR through 2032. Meanwhile, the oil and gas industry continues to provide significant demand for reinforced tubing used in well intervention, production enhancement, and hydraulic fracturing operations.
As these markets expand, the ability to deliver high-quality coil reinforced tubing at competitive costs will separate industry leaders from followers. Ansix Tech’s dedicated project positions the company to capture this growth by offering customers a trusted, single-source partner capable of managing the entire product lifecycle—from concept to high-volume production.
“Our coil reinforced tubing project is not simply about extruding more tubing,” said a company representative. “It is about delivering a complete value proposition—engineering excellence, uncompromising quality, supply chain reliability, and meaningful cost reduction. For customers who have struggled with fragmented suppliers, inconsistent quality, or high total costs, we offer a better way.”
Conclusion
Ansix Tech’s coil reinforced tubing project represents a comprehensive, capability-driven response to industry needs. By integrating advanced design tools (DFM, mold flow analysis), strategic material science, precision mold engineering, controlled extrusion processes, multi-layered quality validation, and systematic cost reduction, the company delivers value that goes far beyond the tubing itself.
For customers in medical devices, automotive, industrial fluid transfer, and oil and gas, the message is clear: in an era where performance requirements are tightening and cost pressures are intensifying, Ansix Tech offers a manufacturing partner that has mastered the entire coil reinforced tubing ecosystem.
For more information about Ansix Tech’s coil reinforced tubing capabilities or to discuss a specific project requirement, visit ansixtech.com or contact the company’s engineering team directly.
About Ansix Tech
Ansix Tech Limited, established in 1998 in Hong Kong, has developed over more than 28 years into a leading provider of one-stop injection molding and extrusion solutions in China. The company specializes in the design and manufacturing of precision molds as well as the engineering and production of high-performance plastic components. With ISO 9001, ISO 14001, IATF 16949, and ISO 13485 certifications, four production bases in China and Vietnam, over 260 injection molding machines, and more than 1,200 employees including over 200 designers, Ansix Tech delivers unparalleled reliability and value to customers across automotive, medical, consumer electronics, and industrial sectors. The company’s corporate mission is to “Make Our Customers Successful”.
Ansix Tech Co Ltd
If you have any plans related to Coil Reinforced 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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