Centrifugal Filter Units

Centrifugal Filter Units 15mL sample volume 5–100kDa MWCO PES low-binding membrane >90% recovery Protein, nucleic acid, virus 20 pcs/carton Product Overview Hawach Centrifugal Filter Units are designed for the concentration, purification, and separation of biological macromolecules such as proteins, nucleic acids, and viruses. By combining centrifugal force with ultrafiltration membrane technology, these centrifugal filter units enable efficient molecular weight-based separation while maintaining high sample recovery. Featuring a low protein-binding PES membrane and available in 5 kDa, 10 kDa, 30 kDa, 50 kDa, and 100 kDa MWCO options, these centrifugal filter units are suitable for protein concentration, DNA/RNA purification, desalting, and sample preparation workflows in life science, biotechnology, pharmaceutical, and food laboratories. What Are Centrifugal Filter Units? Centrifugal filter units are membrane-based laboratory devices used to separate and concentrate biological molecules according to molecular weight. During centrifugation, molecules smaller than the membrane’s molecular weight cut-off (MWCO) pass through the membrane, while larger molecules are retained in the sample chamber. This process allows researchers to concentrate target biomolecules, remove small contaminants, and simplify downstream analytical procedures. Key Features High Sample Recovery The unique vertical membrane design maximizes the effective filtration area, enabling rapid sample processing with recovery rates greater than 90%. Low Protein-Binding PES Membrane Each centrifugal filter unit incorporates a polyethersulfone (PES) ultrafiltration membrane with low protein adsorption characteristics, helping minimize sample loss during concentration and purification. Efficient Molecular Weight Separation The ultrafiltration membrane selectively retains larger biomolecules while allowing smaller molecules and impurities to pass through, making these centrifugal filter units suitable for concentration and purification applications. Reliable Sealing Performance The integrated design provides effective sealing and helps prevent membrane dry-locking during centrifugation, reducing the risk of sample loss caused by over-centrifugation. Easy Sample Observation The transparent tube construction allows convenient visual monitoring of sample volume and filtration progress throughout the centrifugation process. Product Structure Ultrafiltration Inner Tube Manufactured from durable polycarbonate (PC), the inner tube houses the PES ultrafiltration membrane responsible for molecular weight-based separation. Collection Tube The filtrate collection tube is manufactured from polypropylene (PP), providing reliable collection of filtered solutions after centrifugation. Ultrafiltration Membrane The PES membrane serves as the core filtration component, allowing selective passage of molecules according to the specified molecular weight cut-off (MWCO). Available MWCO Options Different MWCO options allow researchers to select the appropriate centrifugal filter unit according to sample characteristics and separation requirements. MWCO Typical Applications 5 kDa Small peptides and low molecular weight biomolecules 10 kDa Enzymes and small proteins 30 kDa Protein concentration and purification 50 kDa Large proteins and biological macromolecules 100 kDa Large molecular complexes and virus-related research Applications Protein Concentration & Purification Concentrate proteins while removing low molecular weight substances and impurities from biological samples. DNA & RNA Purification Suitable for nucleic acid preparation, purification, and removal of enzymes, ions, and other small molecules. Biochemical Research Used for concentration, purification, and sample preparation of biological macromolecules in biochemical laboratories. Pharmaceutical Research Supports the isolation and analysis of biological components during drug discovery and development workflows. Pharmaceutical Formulation Helps remove macromolecular impurities from solutions to improve formulation purity. Food Industry Analysis Suitable for the concentration and detection of bioactive compounds such as polyphenols, antioxidants, and other functional ingredients. Technical Specifications Parameter Specification Sample Volume 15 mL Membrane Material PES (Polyethersulfone) Inner Tube Material PC (Polycarbonate) Collection Tube Material PP (Polypropylene) Color Transparent Recovery Rate >90% Sterility Non-Sterile Packaging Individually Packed Ordering Information Cat. No. Description MWCO Package 11343001 15 mL Centrifugal Filter Unit, PES Membrane 5 kDa 20 pcs/carton 11343002 15 mL Centrifugal Filter Unit, PES Membrane 10 kDa 20 pcs/carton 11343003 15 mL Centrifugal Filter Unit, PES Membrane 30 kDa 20 pcs/carton 11343004 15 mL Centrifugal Filter Unit, PES Membrane 50 kDa 20 pcs/carton 11343005 15 mL Centrifugal Filter Unit, PES Membrane 100 kDa 20 pcs/carton Frequently Asked Questions What are centrifugal filter units used for? Centrifugal filter units are used for concentrating, purifying, and separating biological macromolecules such as proteins, nucleic acids, and viruses. What membrane material is used? The filtration membrane is made of low protein-binding polyethersulfone (PES), which helps reduce sample adsorption and improve recovery. What MWCO options are available? Available molecular weight cut-offs include 5 kDa, 10 kDa, 30 kDa, 50 kDa, and 100 kDa. Can these centrifugal filter units be used for protein concentration? Yes. They are commonly used for concentrating proteins and removing low molecular weight contaminants. Can they be used for DNA and RNA purification? Yes. These centrifugal filter units are suitable for nucleic acid purification and removal of enzymes, ions, and other small molecules. Are the units sterile? No. The products are supplied non-sterile and may be disinfected using 70% ethanol before use if required. What is the recovery rate? The vertical membrane design provides recovery rates greater than 90%. Are the units individually packaged? Yes. Each centrifugal filter unit is individually packed for convenient laboratory use. Contact Hawach for a Quotation Enter your email address and our sales staff will contact you as soon as possible. Your Email (required) Your Message (required) Δ document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); ×