COLO.Science · Concentration & Evaporation · Vacuum centrifugal concentrators
LACEVAC-1C vacuum centrifugal concentrator — compact, without pump or with vacuum pump, RT+5 °C to 70 °C
The LACEVAC-1C vacuum centrifugal concentrator is the compact model of the line: 280 mm wide, 18 kg. It removes solvent from many small samples at once: vacuum lowers the boiling point, gentle heat from RT+5 °C to 70 °C drives the evaporation, and rotation at 1800 rpm keeps the liquid at the bottom of the tube. It is offered in two versions — without a pump, for laboratories that already have one, or with a vacuum pump. The rotor for 66 × 1.5 mL tubes is included. Product code PRO6044.
Vacuum, heat and rotation in a small footprint
Small volumes are easy to lose: under vacuum they bump, splash into the neighbouring tube, or dry onto the wall. In the LACEVAC-1C vacuum centrifugal concentrator centrifugal force holds every sample down while it boils, so the dry residue collects at the bottom of its own tube, ready to be dissolved again. Operation takes one button to start and one to stop.
Key characteristics
- RT+5 °C to 70 °C, set in steps of 1 °C.
- Quick temperature keys: room temperature, 30 °C, 45 °C and 60 °C.
- 1800 rpm, fixed; 380 × g.
- Timer 0 to 9999 min; at 0 the instrument runs continuously.
- Without pump or with vacuum pump — 30 L/min, final vacuum 5 mbar.
- PTFE-coated chamber and PTFE gas path, transparent lid.
- Automatic venting at the end of the run and after a power failure.
- 4 rotors — 66 × 1.5 mL included; 5 mL, 15 mL and 50 mL tubes as options.
Suitable for
- DNA and RNA — drying of precipitates and concentration of eluates.
- Proteins and peptides — digests, fractions and synthesis samples.
- HPLC and SPE — recovery of collected fractions and eluates.
- Drug and metabolite samples — concentration of small volumes before analysis.
- Heat-sensitive samples — drying at room temperature or with mild heat.
Why vacuum lowers the temperature you need
A liquid boils when its vapour pressure reaches the pressure around it. At a working pressure of 10 mbar water boils at about 7 °C instead of 100 °C, so water and volatile solvents evaporate with little or no heating. The LACEVAC-1C vacuum centrifugal concentrator therefore dries samples at temperatures that proteins and nucleic acids tolerate.
The values in the chart are calculated and rounded; the final vacuum of the pump is 5 mbar. Suitability for a specific solvent is confirmed in the quotation. The instrument is not suitable for samples in hydrochloric acid.
Two versions, product codes and rotors
The LACEVAC-1C vacuum centrifugal concentrator has no built-in pump. Choose the version by what you already have in the laboratory. Quote and order with the COLO product codes.
connect a vacuum pump you already have · ask us whether it is suitable
diaphragm pump VACUU-CDT30 · PTFE heads, oil-free · 30 L/min · 5 mbar
Rotors
| PRO7168 · included | 66 × 1.5 mL or 2 mL |
| PRO7170 | 24 × 5 mL, round bottom |
| PRO7169 | 10 × 15 mL, conical |
| PRO7171 | 6 × 50 mL |
One rotor for 66 × 1.5 mL tubes is supplied with the instrument. The other rotors are ordered separately. Tubes stay open during the run.
Technical specifications
Operation and vacuum
| Speed | 1800 rpm, fixed |
| Maximum centrifugal force | 380 × g |
| Temperature setting range | RT+5 °C to 70 °C, step 1 °C |
| Quick temperature keys | RT, 30 °C, 45 °C, 60 °C |
| Time range | 0 to 9999 min |
| Display | time and temperature; analogue vacuum gauge |
| Vacuum pump | external; not built in |
| Final vacuum, with pump | 5 mbar abs., 30 L/min |
Build and general data
| Chamber | PTFE-coated, corrosion-resistant |
| Lid | transparent |
| Drive | magnetic, induction motor |
| Rotors | 4 types; 66 × 1.5 mL included |
| Noise | ≤ 55 dB(A) |
| Supply | AC 220 V, 50/60 Hz, 1000 W |
| Dimensions (L × W × H) | 350 × 280 × 290 mm |
| Net weight | 18 kg |
How a run works
Rotor and load
Place the rotor on the drive shaft so that it sits on the pin, put the open tubes in symmetrically and close the lid.
Run
Set the temperature — 45 °C suits most samples — and the time, and press start. The LACEVAC-1C vacuum centrifugal concentrator starts the rotor first and the pump only when the rotor has reached its speed, so the samples settle before the pressure falls.
End of run
At the end of the time, or when you press stop, the pump switches off, the chamber is vented and the rotor stops.
Chamber, vacuum path and cold trap
Vapour leaves the heated chamber of the LACEVAC-1C vacuum centrifugal concentrator towards the external pump. A cold trap at −50 °C between chamber and pump condenses it first; this protects the pump and speeds up drying, and is recommended with organic solvents.
How the cold trap works
Vapour from the chamber enters the trap through the centre tube and meets a wall held at −50 °C, where it freezes. Only gas that does not condense goes on to the pump. The trap therefore protects the pump from solvent, and because vapour is removed all the time, the pressure in the chamber stays low and drying is faster.
Switch the trap on first and start the run when it is cold. When ice has built up on the wall, defrost the trap and drain it.
The chamber is PTFE-coated and every part in contact with the gas is PTFE, so the instrument resists common organic solvents. The thick transparent lid lets you watch the run; an inlet filter keeps dust away from the samples when the chamber is vented.
Standard delivery
- LACEVAC-1C vacuum centrifugal concentrator.
- Rotor for 66 × 1.5 mL tubes.
- Mains cable.
- Operating manual.
- Declaration of conformity and warranty documentation.
The vacuum pump, the cold trap and the optional rotors are ordered separately. Tubes and samples are not part of the instrument. The delivered configuration for a specific order is the one confirmed in the COLO.Science quotation.
Compare the LACEVAC vacuum centrifugal concentrators
Four instruments cover the range from the compact unit for 1.5 mL tubes to programmable vacuum for demanding methods. The LACEVAC-1C vacuum centrifugal concentrator is the highlighted column.
Options for every model
Knowledge base
Sample concentration and evaporation on COLO.Science — our knowledge base.
Selection guide
- Pump. Do you have a vacuum pump, or do you need the version with pump?
- Solvent. Water and common organic solvents; not for hydrochloric acid.
- Tubes. Type and number per run decide the rotor.
- Cold trap. Recommended with organic solvents; it protects the pump.
- Plates, larger tubes or a set vacuum? See the comparison above.
- Open tubes and nitrogen instead? See the SACO nitrogen sample concentrators.
- Place of use. The LACEVAC-1C vacuum centrifugal concentrator needs 350 × 280 mm on a stable, level bench, plus room for the pump, and weighs 18 kg.
Configuration notice
This page is provided for orientation and product selection. It does not replace the binding specification, the delivered configuration, the validation protocol or the acceptance criteria confirmed in the official COLO.Science quotation, proforma invoice or order confirmation. Confirm the version, the rotors and the mains voltage version of the LACEVAC-1C vacuum centrifugal concentrator for the specific order. B2B prices are quoted net, excluding VAT.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
