Product details of the hollow fiber spinneret
Product Introduction
A variety of sizes and colors for our hollow fiber spinneret can be selected by you. The product has passed out all conducted quality inspection and test. In order to provide the professional service,Trustech employees the most experienced and friendly serve team.
Core structure and working mechanism
Core features of the FCT 5th generation MBR spinneret plate
Its features center on three core principles: maintenance convenience, precision design, and production scalability.
Maintenance convenience: split architecture and quick disassembly
This is the most intuitive breakthrough of FCT technology, directly tackling the time and labor intensive maintenance of traditional spinnerets.
Precision design: monolithic spinneret core and ultra high accuracy
While enhancing maintainability, it pursues extreme precision in key components.
Production scalability: multi-hole expansion and outstanding reliability
The design strongly supports large scale industrial production.
Trustech Spinneret Key Design Elements Trustech
These parameters are fundamental to spinneret design and directly determine the membrane's final performance:
|
Parameter |
Description |
Influence on membrane performance |
| Flow channel (R) | The runner for transporting, buffering, and distributing the dope and bore fluids. | Different structures should be optimized according to material properties, viscosity, spinneret orifice size, and hole quantities to achieve optimal spinning performance. |
| Annular gap width (d) | The gap (thickness) of the dope flow channel. | It primarily determines the hollow fiber wall thickness. Narrower gaps yield thinner walls and lower mass-transfer resistance, but may reduce mechanical strength. |
| Bore tube outer diameter (d₁) | The outer diameter of the central tube forming the inner wall of the annular gap. | Together with the outer sleeve inner diameter, it defines the annular gap width. |
| Outer sleeve inner diameter (d₂) | The inner diameter of the spinneret outer sleeve forming the outer wall of the annular gap. | Together with the bore tube outer diameter, it defines the annular gap width and the fiber outer diameter. |
| Central tube inner diameter (d₃) | The diameter of the bore fluid channel. | It primarily determines the fiber inner diameter. The inner diameter affects membrane module packing density and the pressure drop of fluid inside the fiber. |
| Length-to-gap ratio (L/d) | The ratio of the flow channel length (L) to the annular gap width (d). | It affects spinning stability. Designing an appropriate L/d according to material properties and process conditions helps stabilize flow and eliminate entry effects, resulting in more uniform extruded fibers membrane. |
| Concentricity | The coaxial alignment among the dope layer inner diameter at the spinneret outlet and the bore tube inner and outer diameters. | It affects wall-thickness uniformity and bubble point pressure. |
| Extrusion face geometry | The foremost geometry of the spinneret, such as flat or micro-tapered. | It influences draw-down and deformation after extrusion, especially important for the air-gap segment in dry-wet spinning. |
The Advantages of Trustech FCT Generation 5th Spinneret Trustech
The spinneret design covers a wide dope viscosity range, offers strong versatility, high spinning stability, and effectively reduces issues such as filament breaks.
Product Parameters
| Brand | Trustech | Application | Braided tube |
| Material | SUS304, SUS630, SUS316L | Holes/Pack | 1-8 |
| Dope inlet Thread | G1/8, BSP1/8,NPT1/8 | Minimum membrane OD | 1.0mm-1.2mm |
| Bore liquid inlet thread | G1/8, BSP1/8,NPT1/8 | Customize thread | Yes |
| Precision | ±0.002mm | Concentricity | 0.003mm |
| Design | FCT design | Connections | Standard |
| Viscosity application | 1000-300000cp | Roughness | Ra 0.8 |
| Solvent | DMAC, DMF, NMP | Temperature | 60℃ |
Common Specifications
| No. | General Specification | Application | Design Type | Type |
| 1 | 2.3/1.5/1.0 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 2 | 2.3/1.5/1.2 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 3 | 2.7/1.5/1.2 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 4 | 2.2/1.7/1.4 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 5 | 2.7/2.2/1.9 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 6 | 2.8/2.0/1.5 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 7 | 2.8/2.2/1.9 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 8 | 2.8/2.3/2.0 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 9 | 2.9/1.4/1.1 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 10 | 2.9/1.8/1.5 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 11 | 2.9/1.9/1.6 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 12 | 3.0/2.3/1.9 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 13 | 3.0/2.3/2.0 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 14 | 3.1/2.8/2.5 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 15 | 3.2/2.2/1.8 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 16 | 3.4/1.7/1.4 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 17 | 3.4/2.2/1.8 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 18 | 3.7/1.9/1.6 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 19 | 3.8/2.2/1.9 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 20 | 3.8/2.3/2.0 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 21 | 3.8/2.3/2.0 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 22 | 4.0/2.5/2.1 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
| 24 | 4.0/3.0/2.5 | Braided tube | FCT design | Single-aperture/ Multi-aperture |
Suitable Materials
PVDF (Polyvinylidene Fluoride), CA (cellulose acetate), PVC (Polyvinyl chloride), PES (Polyethersulfone), PSF/PSU (Polysulfone), PA (Nylon, Polyamide), PAN (polyacrylonitrile)
FCT Design
We can offer FCT designs that allow the spinneret core to be removed, replacing conventional designs where each spinneret hole cannot be independently replaced or disassembled. If one hole has a quality issue, the entire spinneret traditionally needs repair or scrapping. Our FCT spinnerets are independently designed so each hole can be individually replaced if needed. The FCT 6th-generation spinneret enables independent on/off control of the dope feed for each spinneret core, and the 8th-generation FCT spinneret cores can be changed online within a few minute down to 50 seconds when problems occur,to ensure continuous production without downtime.
Customer Membrane Examples
FAQ
Company Advantage
• Since the inception, Trustech has always been adhering to the service purpose of 'integrity-based, service-oriented'. In order to return our customers' love and support, we provide high-quality products and excellent services.
• Trustech becomes a leading company in the industry after years of wind and rain.
• Trustech's highly educated team provides a solid foundation for the development.
• Trustech's Spinning Machine,Hollow Fiber Spinneret,Gear Metering Pump are well received by the domestic and international market. And the sales volume is increasing year by year.
• Our company has an excellent geographical location, with convenient transportation conditions. And they are the good foundation for our own development.
If you want to know more relevant product information, feel free to contact us. We are dedicated to serving you.
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