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Leading Hollow Fiber Membrane Spinning Machine and Spinneret Manufacturer - Trustech

Trustech Flat Sheet TFC RO Membrane Casting System
Trustech Flat Sheet RO Membrane Casting System
Trustech Flat Sheet TFC RO Membrane Casting  Machine
Trustech Flat Sheet TFC RO Membrane Casting System
Trustech Flat Sheet RO Membrane Casting System
Trustech Flat Sheet TFC RO Membrane Casting  Machine

Membrane Casting Machine by Trustech-2

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Membrane Casting Machine by Trustech-2 4  Dope preparation and delivery system:

The core units are the mixing tank and precision delivery pump. Strictly control polymer concentration, additives, temperature, and viscosity of the casting dope to ensure stable rheology.

Membrane Casting Machine by Trustech-2 5  Doctor-blade/casting system:This is the core film-forming section. Key equipment includes the doctor blade or extrusion die. Precisely control blade gap height, blade-to-substrate angle, and the tension of the nonwoven substrate.

Membrane Casting Machine by Trustech-2 6  Phase inversion and solidification system:Depending on the process, this is either a coagulation bath for NIPS or a cooling zone for TIPS. Strictly control coagulation bath temperature and chemical composition (for NIPS), or the cooling zone temperature gradient and air velocity (for TIPS). These parameters govern phase-separation kinetics and directly determine the membrane’s micro-pore structure, surface pore size, and porosity.

Membrane Casting Machine by Trustech-2 7  Post-treatment and winding system:

Mainly includes washing tanks and a winder. Control wash-water purity, temperature, and number of stages to thoroughly remove solvent, and precisely control winding tension and speed to prevent wrinkling or stretching, ensuring flatness and mechanical integrity of the final product.

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Key control parameters 

Core Sections

Parameters

Dope preparation and delivery system

 

Polymer Concentration

16.70 wt% (PVDF/PES in DMAC)

Solvent Purity

≥ 99%

Coating Thickness

50 μm

Blade Gap Accuracy

± 10 μm

Doctor-blade/casting system

 

Effective Coating Length

800 mm

Coating Thickness

50 μm

Phase inversion and solidification system

 

Coagulation Bath Temperature

27 °C

Bath Length

3 m

Conveyor Speed

5 m/min

Rinse Flow (Pure Water)

5 L/min

Drying Temperature

80 °C

Humidity

≤ 30% RH

Post-treatment and winding system

 

Hot-Press Temperature

70 °C

Pressure

0.3 MPa

Winding Tension

0.5 N

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Suitable Materials 

Membrane Casting Machine by Trustech-2 10  PVDF (Polyvinylidene Fluoride)

Membrane Casting Machine by Trustech-2 11  CA (cellulose acetate)

Membrane Casting Machine by Trustech-2 12  PVC (Polyvinyl chloride)

Membrane Casting Machine by Trustech-2 13  PES (Polyethersulfone)

Membrane Casting Machine by Trustech-2 14  PSF/PSU (Polysulfone)

Membrane Casting Machine by Trustech-2 15  PA (Nylon, Polyamide)

Membrane Casting Machine by Trustech-2 16PAN (polyacrylonitrile)

Customer Membrane Examples

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Brief Introduction

Trustech is a leading company that specializes in the research, development, and manufacturing of hollow fiber membrane spinning machines and spinning spinnerets. These spinning machines and spinning spinnerets have extensive applications across various industries including water purification, gas separation, hemodialysis, ECMO (Extracorporeal Membrane Oxygenation), food and beverage processing, biotechnology, and chemical engineering, among others.

Trustech is not only at the forefront of hollow fiber membrane spinnerets which develop FCT 5th - 8th generation technology, but also leading hollow fiber membrane spinning machine and flat sheet membrane casting system. Backed by outstanding R&D and quality, Trustech holds China’s high-end market, upgraded spinning systems to enhance precision and stability, and engineered key subsystems including the SteadyiCore Ultra 2.0 Heating system,TitanMix Pro 4.0 Mixing system, PrimeGlider Pro 3.0 Automatic pay-off, SmartCoil Elite 3.0 Automatic winding and StoutDrive 2.0 motor drive setup. These advances of spinning machine and spinneret improved spinning system stability, reduced commissioning and production downtime, and increased overall spinning efficiency by 11.4% compared with before the improvements.

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FAQ

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What is flat sheet casting process?
Flat sheet membrane spinning typically refers to forming a uniform liquid film of polymer solution on a continuously running substrate such as nonwoven fabric or a rotating drum via casting or doctor-blade coating, followed by phase separation (e.g., NIPS or TIPS) to solidify into a porous separation membrane. This is an efficient, continuous manufacturing method for flat sheet membranes.


Company Advantages

· The shapes of membrane casting machine can be customized according to requirements from customers.

· Each product meets the quality standards through strict quality test.

· As long as other outer packing request from our customers is reasonable, Shanghai Trustech Technology Development Co., Ltd. will be willing to have a try.


Company Features

· After years of experience in manufacturing and developing of membrane casting machine, now Shanghai Trustech Technology Development Co., Ltd. is playing a more and more important role in this field.

· We are equipped with a team of skillful workers and strong technical force who have abundant experience in the membrane casting machine field. It is such people that make us have the confidence to come up with different creative production solution for customers.

· You can obtain our membrane casting machine and receive the satisfactory services from us. Welcome to visit our factory!


Application of the Product

The membrane casting machine developed and produced by our company can be widely used in various industries and professional fields.

Trustech has an excellent team consisting of R&D, production, operation and management. According to actual needs of different customers, we could provide customers with practical solutions.

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we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.
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