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

Flat Sheet Membrane Casting Machine by Trustech

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Flat Sheet Membrane Casting Machine by Trustech 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.

Flat Sheet Membrane Casting Machine by Trustech 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.

Flat Sheet Membrane Casting Machine by Trustech 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.

Flat Sheet Membrane Casting Machine by Trustech 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 

Flat Sheet Membrane Casting Machine by Trustech 10  PVDF (Polyvinylidene Fluoride)

Flat Sheet Membrane Casting Machine by Trustech 11  CA (cellulose acetate)

Flat Sheet Membrane Casting Machine by Trustech 12  PVC (Polyvinyl chloride)

Flat Sheet Membrane Casting Machine by Trustech 13  PES (Polyethersulfone)

Flat Sheet Membrane Casting Machine by Trustech 14  PSF/PSU (Polysulfone)

Flat Sheet Membrane Casting Machine by Trustech 15  PA (Nylon, Polyamide)

Flat Sheet Membrane Casting Machine by Trustech 16PAN (polyacrylonitrile)

Customer Membrane Examples

Read More Cases
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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

· Trustech flat sheet membrane casting machine is manufactured under modern management system.

· All of our flat sheet membrane casting machine can be designed and customized, including pattern, logo and so on.

· Shanghai Trustech Technology Development Co., Ltd. provides professional sales support for local partners and key accounts.


Company Features

· Shanghai Trustech Technology Development Co., Ltd. is a key flat sheet membrane casting machine supplier and important strategic partner of many well-known groups at home and abroad.

· We are supported by an executive team. They can ensure that our staff has sufficient competent resources and information for the implementation and delivery of the business plan.

· Shanghai Trustech Technology Development Co., Ltd. has always upheld 'Good Faith as Principle'. Get quote!


Application of the Product

Trustech's flat sheet membrane casting machine can meet the different needs of customers.

We are committed to meeting the need of our customers. We will go deeper into their situation and provide them with most suitable 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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