Sartocon Slice 50, PESU ECO 100kD /50cm²

Polyethersulfone membranes (PESU) are stable polymer that feature a broad pH and temperature range. Polyethersulfone ultrafiltration cassettes are available in the following nominal molecular weight cutoffs:

  • 1 kD
  • 5 kD
  • 8 kD
  • 10 kD
  • 30 kD
  • 50 kD
  • 100 kD
  • 300 kD

Item No.: 

*Custom/bulk order quotes are provided within 72 hours of request.

PESU Polyethersulfone membranes are membrane polymers that are well established in the biotechnological and pharmaceutical industries. The PESU membrane is a stable polymer that features a broad pH and temperature range. Its wide temperature range makes it possible to sterilize the membrane by either steam or autoclaving. Membrane regeneration, storage and depyrogenation can be accomplished by using NaOH even at elevated temperatures. Because of these features, the PESU membrane is ideally suited for biotechnological applications. PESU cassettes are available in 0.1 µm. Polyethersulfone membranes are designed for applications in the biotechnological and pharmaceutical industries.

They can be used to remove the following cells from liquids:

  • Mammalian cells
  • Clostridia
  • Yeasts
  • Salmonella
  • Mycoplasma reduction

Polyethersulfone can withstand in-line steam sterilization without any loss of integrity or changes in membrane retention. Membrane retention is unaffected by re-use.


  • Industry
    Pharma / Biotech  


  • Filtration Area
    50 cm²  
  • Flow Channel Geometry
    Protein conc. <20% /or viscosity max.3cp  

General Specifications

  • Cassette Format
    Slice 50 Cassettes  
  • Filter Class
  • Filter Configuration
    Slice 50 Cassette  
  • Filter Format
  • Ultrafilter
    100 kD Polyethersulfone Ultrafilter Membrane  

Materials of Construction

  • Integral Frame
    Polypropylene (PP)  
  • Membrane Material
    Polyethersulfone (PES)  
  • Sealing Compound
    Not Applicable  
  • Spacer
    Polypropylene (PP)  

Operating Conditions

  • Maximum Inlet Pressure
    3 bar  
  • pH Stability
    pH 1 – 14  

Physicochemical Information

  • MWCO
    100 kD  
  • Non-Fiber Releasing
    This filter product complies with the title 21 of the Code of Federal Regulations (CFR), section 210.3(b)(6) and 211.72.  

Product Information

  • Brand
Sartoflow® Smart
Item no.

Smart & Easy TFF System for Process Development

Excellent flexibility

50 cm2 - 0.14 m² membrane size | 1 L PSU vessel or 150 mL - 1 L single-use Flexboy® bags for recirculation

Intuitive and user-friendly

Highly automated with predefined sequences

The highest product yields

Low shear 4-piston membrane pump