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ULTRAN® - MiniFlex is a CrossFlow system designed for rapid
laboratory concentration and diafiltration of biological solution
volumes up to 250 mL. In contrast to single pass filtration, cross flow
involves recirculation of the feed stream across the membrane surface.
Polarization is minimized due to the cross flow velocity generated by a
recirculation pump.
In operation the retentate, including all particles and molecules
retained by the membrane, continues through the recirculation path,
while the solvent and all solutes which pass through the membrane are
collected in a reservoir for the so called permeate.
The ULTRAN - MiniFlex system includes a peristaltic pump, feed and
retentate pressure indicators, mounted on a convenient base plate,
retentate and permeate reservoirs and back pressure valve. All
components are connected using flexible silicone tubing and luer
fittings.
MiniFlex filter cassettes are available in a wide range of
ultrafiltration and microfiltration pore sizes. The filtration unit can
easily be assembled in horizontal or vertical position.
Applications
- Protein concentration
- Continuous buffer exchange
- Concentration and buffer exchange of column
chromatography fractions
- Cell harvesting / washing
- Colloidal suspension concentration /
diafiltration
- Virus concentration
| ULTRAN - MiniFlex System |
| Number of cassettes |
1 |
| Membrane area per cassette |
24 cm2 |
| Hold up volume of the retentate per
cassette |
0.5 mL |
| Minimal Hold up volume of the system |
2.5 mL |
| Recommended operating pressure |
1.0 – 1.8 bar |
| Recommended torque |
3 – 5 Nm |
| Dimensions of the hardware
|
| Horizontal use of the filter unit (W x L
x H) |
26.2 x 29.3 x 15 cm |
| Vertical use of the filter unit (W x L x
H) |
26.2 x 20.3 x 26.3 cm |
| Weight |
3.8 Kg |
| Materials |
| Membrane |
Polyethersulfone (PES), hydrophilic |
| Membrane support |
Polypropylene |
| Cassette edge |
Silicone |
| Base plate |
POM white |
| Top plate |
Acrylic polymer |
| Reservoirs |
Polystyrene |
| Fittings |
Acrylic polyethersulfone (PES),
hydrophilic |
| Tubing |
Silicone |
| Ordering Information - ULTRAN
- MiniFlex Cassettes |
| Description |
Catalogue Number |
| Ultrafiltration - MWCO |
| 5 kD |
10 478 114 |
| 10 kD |
10 478 124 |
| 30 kD |
10 478 134 |
| 50 kD |
10 478 144 |
| 100 kD |
10 478 154 |
| 300 kD |
10 478 164 |
| 500 kD |
10 478 174 |
| Microfiltration - Pore
Size |
| 0.2 µm |
10 478 184 |
| 0.45 µm |
10 478 194 |
| Ordering Information - ULTRAN
- MiniFlex System and Accessories |
| Description |
Catalogue Number |
| ULTRAN - MiniFlex System |
10 479 803 |
| Torque wrench 1 – 10 Nm |
10 478 335 |
| Acrylic top plate |
10 479 810 |
| Reservoir 30 mL |
10 479 957 |
| Reservoir 150 mL |
10 479 958 |
| Luer Adapter (package with 10 pieces) |
10 479 801 |
| Silicone tube 3.2 x 1.6 mm (Length: 1m) |
10 471 850 |
| Pressure gauge kit: 0 – 2.5 bar
includes 1 manometer & 1 T-piece |
10 479 805 |
|
+32 (0) 16
58 90 45 
+32 (0) 16
50 90 45
