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Electrophoresis Roll Type Ultrafilter

An Electrophoresis Roll Type Ultrafilter is a specialized filtration system often used in electrophoretic coating (e-coating) processes. This system is designed to remove excess water, impurities, and contaminants while recovering valuable paint solids during the coating process.

  • Description
  • Technical Specifications
  • Applications

Roll-Type Membrane:
A cylindrical or roll-type membrane is used for ultrafiltration, providing a compact and efficient design.
These membranes allow selective passage of water and low-molecular-weight compounds while retaining larger particles like paint solids.

Electrophoretic Compatibility:
Optimized for electrophoresis coating baths, which involve applying paint or coating to a substrate using electrical current.

High Recovery Rate:
Recovers paint solids efficiently, reducing waste and enhancing the economy of the coating process.

Durable Material:
The ultrafilter membrane is often made from materials resistant to the harsh chemicals used in electrophoretic coating processes.

Continuous Operation:
Supports continuous filtration and recycling of the coating bath, maintaining optimal bath chemistry and reducing downtime.

Electrophoresis roll type ultrafilter(1).png
Electrophoresis roll type ultrafilter
1. Membrane Characteristics
Type: Roll or tubular ultrafiltration (UF) membrane
Material:
Polyvinylidene fluoride (PVDF)
Polysulfone (PS)
Polyacrylonitrile (PAN)
Pore Size: 0.01 – 0.1 µm (suitable for separating paint solids and ultrafine particles)
Molecular Weight Cutoff (MWCO): 10,000 – 100,000 Dalton
Membrane Configuration: Spiral wound, tubular, or hollow fiber (depending on system design)
2. Filtration Performance
Operating Pressure: 2 – 6 bar (29 – 87 psi)
Flow Rate: Typically 500-5000 liters/hour, depending on the system size and requirements
Recovery Rate: Up to 95% of solids
Operating Temperature: 5°C – 45°C (41°F – 113°F)
pH Range: 2 – 11 (some systems may tolerate up to pH 1 – 13 for cleaning)
Electrophoresis roll type ultrafilter.png
Electrophoresis roll type ultrafilter
3. System Design
Materials of Construction:
Stainless steel (SS304/SS316) for housing
Non-corrosive coatings for e-coating environments
Feed Channels: Designed to handle high-viscosity coatings
Cleaning-in-Place (CIP): Integrated CIP systems for maintenance
4. Power & Control
Power Supply: 220V – 480V AC, depending on region and capacity
Control System:
Programmable Logic Controller (PLC)
User interface with touchscreen for monitoring pressure, flow rates, and membrane performance
Electrophoresis roll type ultrafilter(2).png
Electrophoresis roll type ultrafilter
5. Applications
Bath Maintenance:
Removes contaminants like salts, excess resin, and unwanted particles.
Maintains consistent conductivity and bath chemistry.
Paint Recovery:
Separates paint particles from the ultrafiltrate for reuse in the bath.
6. Dimensions & Capacity
Typical System Size:
Compact systems: 1.2m x 0.6m x 1.5m
Large-scale systems: Custom-built to fit facility requirements
Capacity: 1000 liters/day to over 20,000 liters/day

Automotive Industry: For e-coating car bodies and components.

Appliances: In the coating of household appliances to improve durability and appearance.

Industrial Coatings: For machinery, tools, and other industrial equipment.

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