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Your best assistant in ultra and diafiltration

This manual benchtop Crossflow system has been optimized for ultrafiltration, microfiltration and diafiltration applications used in many downstream processes.

Item no.:  SFSTUDY

Availability (ex works):  On Request


The SARTOFLOW® Study will prove to be your best assistant in ultra- and diafiltration applications. It will assist you by conveniently displaying interactive prompts for easy guidance through entire sequences that will enable you to be more productive during the purification of monoclonal antibodies, vaccines or protein solutions. This innovative system is ideal for flexible use in laboratory environments for process development and clinical trials, as well as for small-scale production batches. Several standardized options are available to enable you to obtain just the right system exactly tailored to meet your individual requirements.


SARTOFLOW® Systems — Crossflow Solutions for Lab and Process Development
en 436.4 kB


SARTOFLOW® Study — Your best assistant in uItra and diafiltration
en 572.2 kB


  • Dimensions (W×D×H)
    1,100 × 800 × 680 mm

General Specifications

  • Pump Output
    700 L/h @ 4 bar (60 psi)
  • Surface Roughness of Wetted Parts
    Ra <= 0.6 µm

Materials of Construction

  • Recirculation Vessel
    Polypropylene (PP)

Operating Conditions

  • Maximum Operating Pressure
    4 bar (58 psi)
  • Minimum Operating Volume
    ~400 mL (with PP-Vessel) ~200 mL (with Stainless Steel-Vessel)

Power Requirements

  • Power Requirements
    230 VAC | 50 Hz 2.5 Amp; 120 VAC | 60 Hz 4 Amp

Product Information

  • Primary Product Type


  • Recirculation Vessel Volume
    1 L


  • Weight (approximate)
    135 kg
Hydrosart® Ultrafilter

Hydrosart® high performance membrane is a stabilized cellulose based membrane that has been optimized for biopharmaceutical process applications. Hydrosart® is stable across a broad pH range, is extremely hydrophilic, making it non-protein binding, and virtually non-fouling. Membrane cleaning, storage and depyrogenation can be accomplished by using NaOH even at elevated temperatures and concentrations. These features make Hydrosart® an ideal membrane for biological applications.

Hydrosart® Microfilter

Hydrosart® membranes are extremely hydrophilic, making it non-protein binding and virtually non-fouling. Hydrosart® mikrofiltration cassettes are available in 0.2 µm and 0.45 µm.

Polyethersulfone Ultrafilter

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

Polyethersulfone Microfilter

PESU cassettes are available in 0.1 µm pore size. 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