Zhejiang Xinna Medical Device Technology Co., Ltd.
| Payment Terms | L/C, T/T |
| Delivery Time | 15 to 30 days |
| Packaging Details | 1000 pcs/pack standard export carton packaging or custom |
| Product Name | PES Hydrophilic Filter |
| Filter Material | PES/PP Membrane |
| Housing Material | Medical Grade ABS |
| Color | Clear/blue |
| Operating Temperature | 0-50℃ |
| Application | Medium Filtration |
| Technics | Injection Molding |
| Sterilization | ETO |
| Brand Name | NO |
| Model Number | XN-HF33 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 15 to 30 days |
| Packaging Details | 1000 pcs/pack standard export carton packaging or custom | Product Name | PES Hydrophilic Filter |
| Filter Material | PES/PP Membrane | Housing Material | Medical Grade ABS |
| Color | Clear/blue | Operating Temperature | 0-50℃ |
| Application | Medium Filtration | Technics | Injection Molding |
| Sterilization | ETO | Brand Name | NO |
| Model Number | XN-HF33 | Certification | ISO9001 |
| Place of Origin | China |
5 Micron Injection Disc Filter with standard Luer Lock Connections
This Medical-grade filter device consists of a 33mm diameter housing and high-quality hydrophilic PES membranes with sterilization grade pore size of 0.22µm.
The PES Hydrophilic Filter is a versatile consumable for life science, biotech labs and healthcare settings. Its design balances sterility (0.22 µm), efficiency (high flow rate via hydrophilicity), and sample preservation ((low protein adsorption)—making it the preferred choice for critical applications where contaminants, sterility, or protein recovery are top priorities.
Specifications
| Membrane Material | Polyethersulfone (PES) |
A high-performance synthetic polymer chosen for its chemical resistance (to acids, bases, and organic solvents), thermal stability (withstands repeated autoclaving), and biocompatibility—critical for medical/life science use.
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| Housing Diameter | 33 mm |
Typical size for small-scale filtration systems.
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| Pore Size | 0.22 µm |
The gold standard for sterile filtration—effectively retains bacteria (most bacteria range from 0.5–5 µm), endotoxins, and larger microparticles while allowing liquids (buffers, media) and small molecules to pass. Compliant with regulatory requirements for sterility in pharmaceutical, biotech, and clinical settings.
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| Surface Property | Hydrophilic |
Engineered to optimize interaction with aqueous solutions (buffers, protein solutions, cell culture media). Key benefits include: *High flow rates: Minimizes pressure drop during filtration (no need for extensive pre-wetting, unlike hydrophobic membranes). *Low protein adsorption: Prevents non-specific binding of proteins to the membrane, maximizing recovery of target proteins (e.g., monoclonal antibodies, enzymes) and reducing fouling (which extends filter lifespan). *Easy integration: Works seamlessly with aqueous workflows without requiring additional surfactants or modifications.
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| Connector Design | Luer lock |
With ISO 9001 certificated, the PES filters have a design of double luer lock, providing a secure and leak-free connection during filtration processes.
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Recommended Applications
1. Microparticulate Filtration
Removes unintended tiny particles (e.g., dust, glass shards, cellular debris, aggregated proteins) from liquids. The 0.22 µm pore size ensures consistent removal of particles down to the minimum required for sterility or clarity. Useful for preparing reagents, buffers, or media free of contaminants that could interfere with experiments or damage equipment.
2. Buffer Filtration
Buffers are foundational in assays, electrophoresis, and protein studies. The hydrophilic surface ensures fast flow rates (critical for high-throughput labs) and minimal loss of buffer components via adsorption. Sterile filtration (0.22 µm) also eliminates microbial contaminants that could degrade the buffer over time.
3. Protein Filtration
Proteins are highly sensitive to adsorption onto surfaces, which leads to reduced yield and purity. The hydrophilic PES membrane’s low protein-binding property preserves protein integrity and function—essential for downstream applications like mass spectrometry, crystallography, or therapeutic production. The 0.22 µm pore size also removes bacterial contaminants from protein solutions without altering the protein itself.
4. Medium Filtration
Cell culture media (e.g., DMEM, RPMI) must be sterile to prevent microbial growth that could kill or contaminate cell lines. The 0.22 µm pore size provides reliable sterilization, while the hydrophilic surface enables rapid filtration of viscous media (reducing processing time and shear stress on sensitive nutrients). Low protein adsorption also prevents loss of serum proteins (e.g., fetal bovine serum) added to the media.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1994
Total Annual:
$15,000,000-$25,000,000
Employee Number:
101~135
Ecer Certification：
Verified Supplier
Founded in 1994, Zhejiang XINNA Medical Device Technology Co.,ltd is a trusted and professional manufacturer of high-quality membrane filtration products. As a high-tech enterprise integrating R&D, production and sales, Xinna provides a wide range of membrane filter products and solutions ... Founded in 1994, Zhejiang XINNA Medical Device Technology Co.,ltd is a trusted and professional manufacturer of high-quality membrane filtration products. As a high-tech enterprise integrating R&D, production and sales, Xinna provides a wide range of membrane filter products and solutions ...
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