FCT Braid Tube Reinforced Hollow Fiber Membrane Spinning Spinneret single hole 1.Year: 2016

11. Collaboration details and deepened technical advances (based on FCT 5th-generation technology upgrade):

In 2016, during an upgrade of its water treatment membrane production line, E&E Technology Group identified an industry wide issue with its existing spinnerets: concentricity deviations in hollow fiber formation, leading to uneven wall thickness and unstable flux.  Building on the FCT 5th-generation independent spinneret core technology, Trustech employed a pinless modular design and precision flow control optimization to not only solve the concentricity problem but also convert an initial purchase into ongoing repeat orders—demonstrating technical reliability and long term partnership value.

I. Core breakthroughs of FCT 5th-generation technology: pinless independent spinneret core architecture

● Modular maintenance advantage: Independent spinneret core units replace traditional pin fastened structures, allowing per-core removal and replacement without disassembling the entire plate. Maintenance time was reduced from several hours to under 10 minutes, boosting fault handling efficiency by 80% and preventing whole plate scrappage due to a single orifice issue.

● Precision concentricity control: A stepped needle tube design combined with a sealing mechanism keeps assembly concentricity stably within 0.003 mm, limiting membrane fiber wall thickness deviation to ≤0.004 mm and fundamentally resolving the eccentricity problem.

● High strength material assurance: Trustech spinneret core uses stainless steel with enhanced corrosion resistance, suitable for long-term operation with PVDF casting dope in high humidity environments, extending service life by 2–3 times over conventional spinnerets.

II. Process adaptability optimizations for braided tube reinforcement

● Improved dope permeation balance: Addressing the high pore density of braided tubes and the tendency of casting dope to infiltrate and clog, Trustech FCT 5th-generation employs a conical buffer flow channel design to stabilize PVDF solution velocity within the single orifice, preventing internal channel blockage in the braid.

● Enhanced coating adhesion strength: The independent spinneret core design, coupled with coordinated tuning of dope viscosity and spinning speed, forms an interlocking anchor structure between the PVDF coating and the braided support layer, increasing peel strength and eliminating delamination risk during operation.

III. From technical validation to scaled repeat orders: commercial value realization

● 2016 initial order of 10 sets: Following successful trials, the customer placed an additional order in the same year; the single hole design increased membrane fiber production efficiency by 13%.

● 2017 capacity expansion with 43 additional sets: As product demand grew, Trustech's spinnerets—thanks to high consistency and low maintenance costs—supported capacity scale up; annual procurement rose to totaling 53 sets supplied.

● Cost benefits highlighted: The independent spinneret core design reduced spare part costs by 6% and maintenance downtime by 40%, saving about 5% in annual production costs.

IV. Technical extension: benchmark significance of the single hole spinneret in environmental water treatment

● Precision at international standards: Orifice tolerances of ±0.002 mm and concentricity of 0.003 mm match the technical level of leading German and Japanese firms, helping the customer localize and replace imports.

● Foundation for flexible manufacturing: The success of the single hole spinneret laid the groundwork for subsequent upgrades to multi hole spinnerets (e.g., 4 hole, 8 hole), enabling expansion into advanced applications such as MBR (membrane bioreactors) and submerged ultrafiltration.

The E&E Technology Group case showcases the triple advantages of Trustech FCT 5th generation technology in precision control, maintenance convenience, and process adaptability. Through the single hole braided tube reinforced spinneret, Trustech not only resolved the customer's core pain points but also, via sustained technical support, drove capacity upgrades and cost optimization—laying a solid foundation for deeper future cooperation.