Trustech: Deeply Cultivating Hollow Fiber Spinneret Technology and Leading Industry Standards

In fields such as environmentally friendly water treatment, medical hemodialysis membranes, and gas separation membranes, hollow fiber membranes serve as a core component, and their performance and production efficiency directly affect the quality of industry development. At this key link in the value chain, Trustech, through continuous technological innovation and a strong sense of industry responsibility, has become a leader in China's hollow fiber membrane spinneret (spinneret plate) sector. The company has not only driven iterative upgrades in product performance, but also taken the lead in drafting industry standards, injecting strong momentum into the sector's standardized development.

From Follower to Leader: Iterative Upgrades Cement Core Advantages  

As a high tech enterprise focused on the R&D and manufacturing of hollow fiber membrane spinnerets, Trustech's development is a story of continuously breaking through traditional technical bottlenecks. Since its founding, the company has moved beyond the limitations of traditional straight needle tube pin technologies. Through industry academia research collaboration with multiple universities and research institutes, it has achieved a leap from the first generation of "straight needle, non precision" designs to the ninth generation featuring "intelligent flow control."

Launched in 2015, the fourth generation step needle, pin positioned spinneret plate achieved a breakthrough in precision control for the first time. The fifth generation in 2016 sparked an industry revolution with its "independent spinner core and pinless design"—eliminating the need for locating pins, boosting disassembly and maintenance efficiency by more than tenfold, greatly reducing damage to the dope needles, and significantly extending service life, with maintenance costs alone down by 80%. Notably, this generation was successfully applied in the field of medical hemodialysis membranes, making Trustech the first domestic enterprise to achieve mass production of hemodialysis spinnerets—breaking foreign monopolies and filling a domestic gap.

The sixth through ninth generations have maintained a cadence of "breakthroughs with every generation." The sixth generation achieved independent control of feed streams, so a single orifice failure does not affect overall production. The seventh generation adopted a screwless, pinless structure, reducing volume by 50% while increasing throughput by 30%. The eighth generation conquered "online, non stop spinner core replacement," cutting changeover time to 30 seconds and enabling truly flexible production. The ninth generation introduced an intelligent flow control module that supports simultaneous production of multiple specifications, further widening the gap with traditional industry technologies.

Ultra Precision Processes Underpin Multiple Metrics at International Levels  

These technological breakthroughs are underpinned by Trustech's robust capabilities in ultra precision machining. Leveraging advanced micro deep hole machining equipment, the company achieves 0.002 mm machining accuracy, 0.003 mm concentricity, and surface roughness control of Ra 0.2 0.4—placing multiple indicators at the level of international peers.

Innovation is also evident in structural design: the independent spinner core uses a pinless design so that core components such as dope needles are not contacted during disassembly; repeated disassembly and assembly require no precision readjustment. The modular spinneret plate design eliminates fastening screws and locating pin holes, simplifying production processes and substantially reducing setup and maintenance costs. These design details address the pain points of traditional spinnerets—"low precision, poor reliability, difficult maintenance"—while conferring a unique advantage in multi orifice scalability: the number of orifices can be expanded from 32 to 1,536 to meet different production scales.

To date, the company has obtained a total of 41 independent intellectual property rights, including 4 invention patents and 7 software copyrights. More than 40 granted patents have built a strong technical moat. Among them, technologies such as rapid spinner core replacement without shutdown and modular multi orifice spinneret plates have been certified by the Shanghai Science and Technology Novelty Search and Consulting Center of the Chinese Academy of Sciences as reaching the domestic leading level.

Leading the Formulation of Industry Standards and Advancing Standardized Development  

Technology leaders are often standard setters. In recent years, Trustech, together with several well known industry enterprises such as Ningbo Water & Membrane Technology and Jiangsu Jiuwu Hi Tech, took the lead in formulating the group standard "Hollow Fiber Membrane Spinneret Plate" (T/SHDSGY058 2022). Covering product design, production processes, testing methods, and quality control, this standard establishes a complete normative framework, effectively addressing the previous lack of standards and uneven product quality across the industry.

"As the standard was introduced, upstream and downstream enterprises gained a unified technical reference," noted industry insiders. This initiative has not only improved overall quality levels, but also propelled China's hollow fiber membrane spinneret sector from "fragmented development" to "standardized competition," laying a foundation for enhancing the international competitiveness of China's separation membrane technologies. As the core driving force behind the standard setting, Trustech's technological accumulation and hands on experience have provided important practical grounding for the standard's specifications on specialty membrane products.

Strong Market Reputation and Ongoing Global Expansion  

With robust technology and quality, Trustech's products have been widely adopted in China's high end market, with a market share exceeding 90% and a customer repurchase rate stabilized between 85.74% and 86.74%, underscoring strong market recognition. In addition to serving numerous domestic enterprises, the products are exported to 39 countries and regions including the United States, Germany, and Singapore, with a cumulative total of 634 global customers—making Trustech as a representatives of China's hollow fiber membrane equipment "going global."

Looking ahead, Trustech will continue to uphold the philosophy of "focus and endeavor, independent innovation." Guided by industry standards, the company will keep pushing forward in high precision, intelligent spinneret technologies, driving the hollow fiber membrane field toward higher performance and broader application scenarios, and providing stronger technological support for the high quality development of industries such as environmental protection and healthcare.