Microza UNA-600A Ultrafiltration Membrane for Electronic Grade Ultrapure Water Asahi Kasei Equivalent

Product Overview

LEFILTER is committed to providing high-performance filtration technologies for precision water treatment processes. The Microza UNA-600A Ultrafiltration Membrane for Electronic Grade Ultrapure Water stands as an advanced alternative to the original Asahi Kasei Microza series, designed specifically for industries demanding consistent, ultra-high purity water. Utilizing advanced hollow fiber UF membrane technology, this module excels in removing colloids, bacteria, endotoxins, and high molecular weight organics, while ensuring stable output and low TOC levels. With its robust design and tight pore size distribution, the UNA-600A is ideal for semiconductor, display panel, and integrated circuit manufacturing sectors, where the slightest impurity can disrupt operations.

Technical Specifications

• Model: UNA-600A (Asahi Kasei Equivalent)

• Membrane Material: Polyvinylidene fluoride (PVDF)

• Pore Size: Approximately 0.03 µm

• Membrane Area: 60 m²

• Nominal Flow Rate: 3,000 – 4,500 L/h (depending on water quality)

• Operating Pressure: 0.1 – 0.3 MPa

• Operating pH Range: 2 – 10 (short-term cleaning pH 1–11 allowed)

• Maximum Operating Temperature: 45°C

• Outer Diameter of Module: 200 mm

• Length: 1,500 mm

• Connection Type: Victaulic / Clamp (customizable)

• Endotoxin Rejection: >99.99%

• Bacteria Removal: >6 log reduction

The membrane's asymmetric pore structure offers superior filtration efficiency while ensuring high permeability and extended service life. It is engineered to reduce downtime with less frequent chemical cleaning cycles and maintains excellent hydraulic performance even under fluctuating load conditions.

Application Fields

The UNA-600A ultrafiltration membrane is extensively used in water polishing systems where semiconductor-grade ultrapure water is required. Its primary sectors of application include:

• Semiconductor Fabrication: As the demand for ultra-clean water grows with the reduction of transistor node sizes, UF membranes like the UNA-600A ensure particle-free rinse water at every production stage.

• LCD/OLED Panel Manufacturing: For high-precision glass cleaning and photolithography rinses, consistent water quality is vital.

• Photovoltaic Cell Production: UF membranes help remove micro-particles that could damage sensitive PV layers.

• Laboratory and Pharmaceutical High-Purity Water Systems: The module supports pretreatment for EDI or mixed-bed resin systems.

• Post-RO Polishing Units: As a secondary filtration stage to improve clarity and microbial quality of RO permeate.

This model is particularly suited for integration into cleanroom environments and ultrapure water generation loops, where minimizing contamination and ionic interference is critical.

FAQ

Q1: What advantages does the Microza UNA-600A offer over standard UF membranes?

A1: Compared to general-purpose ultrafiltration units, the UNA-600A offers a higher level of particle and endotoxin rejection, making it suitable for ultrapure applications in electronics and precision manufacturing.

Q2: Can this membrane be used with high-temperature water?

A2: The maximum continuous operating temperature is 45°C. For applications involving higher thermal loads, consult LEFILTER for appropriate temperature-resistant alternatives.