COLO.Science · Concentration & Evaporation · Vacuum centrifugal concentrators
LACEVAC6 vacuum centrifugal concentrator — built-in oil-free pump, 13 mbar, RT+5 °C to 100 °C
The LACEVAC6 vacuum centrifugal concentrator is the all-in-one model of the line: the oil-free vacuum pump is built into the housing, so one instrument stands on the bench and no separate pump is connected. It removes solvent from many small samples at once: vacuum down to 13 mbar lowers the boiling point, heat from RT+5 °C to 100 °C drives the evaporation, and rotation at 800 to 2000 rpm keeps the liquid at the bottom of the tube. The rotor for 90 × 1.5 mL tubes is included. Product code PRO5881.
Vacuum, heat, rotation and the pump in one housing
Small volumes are easy to lose: under vacuum they bump, splash into the neighbouring tube, or dry onto the wall. In the LACEVAC6 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. Routine methods are stored as programs and started with one key.
Key characteristics
- Built-in oil-free pump with PTFE head, 33 L/min, final vacuum ≤ 13 mbar.
- RT+5 °C to 100 °C, with a separate key for pre-heating the chamber.
- 800 to 2000 rpm, adjustable; 530 × g.
- Two steps: two times and two temperatures in one run; timer 0 to 9999 min.
- 30 user programs and 4 quick keys; programs for water and for ethanol solutions.
- Stainless steel chamber with PTFE coating, glass window, digital vacuum gauge.
- Automatic venting at the end of the run and after a power failure.
- 8 rotors — 90 × 1.5 mL included; up to 180 tubes with two rotors stacked.
Suitable for
- DNA and RNA — drying of precipitates and concentration of eluates and oligonucleotides.
- Proteins and peptides — digests, fractions and synthesis samples.
- HPLC and SPE — recovery of collected fractions and eluates.
- Routine work with several solvents — stored programs for water and for ethanol solutions.
- Two 96-well microplates in one run.
Why vacuum lowers the temperature you need
A liquid boils when its vapour pressure reaches the pressure around it. At 13 mbar, the final vacuum of the built-in pump, water boils at about 11 °C instead of 100 °C, so water and volatile solvents evaporate with little heating. The LACEVAC6 vacuum centrifugal concentrator therefore dries samples at temperatures that proteins and nucleic acids tolerate.
The values in the chart are calculated and rounded; the pressure in the chamber during a run is higher than the final vacuum. Suitability for a specific solvent is confirmed in the quotation.
Product code, rotors and options
The LACEVAC6 vacuum centrifugal concentrator comes in one version, with the pump built in. Rotors and the cold trap are chosen for the application. Quote and order with the COLO product code.
oil-free diaphragm pump, PTFE head · 33 L/min · final vacuum ≤ 13 mbar
−50 °C · 2 L · recommended with organic solvents
Rotors
| Microtubes · included | 90 × 1.5 mL or 2 mL |
| Microtubes and 5 mL tubes | 66 × 1.5 mL + 24 × 5 mL |
| PCR strips | 24 × 8 × 0.2 mL |
| Sample vials | 64 × 2 mL |
| Round-bottom tubes | 72 × 5 mL |
| Conical tubes | 18 × 15 mL |
| Conical tubes | 8 × 50 mL |
| Microplates | 2 × 96-well |
One rotor for 90 × 1.5 mL tubes is supplied with the instrument. The other rotors are ordered separately; their product codes are stated in the quotation. Two rotors can be stacked. Tubes stay open during the run.
Technical specifications
Operation and vacuum
| Speed | 800 to 2000 rpm, adjustable |
| Maximum centrifugal force | 530 × g |
| Temperature setting range | RT+5 °C to 100 °C |
| Time range | 0 to 9999 min; two steps |
| Programs | 30 user programs, 4 quick keys |
| Display | 5.7-inch LCD; digital vacuum gauge |
| Vacuum pump | built-in diaphragm pump, PTFE, oil-free |
| Final vacuum · pumping speed | ≤ 13 mbar · 33 L/min |
Build and general data
| Chamber | stainless steel 304, PTFE-coated |
| Lid | with glass window |
| Drive | magnetic, induction motor |
| Rotors | 8 types; 90 × 1.5 mL included |
| Noise | ≤ 60 dB(A) |
| Supply | AC 220 V, 50/60 Hz, 660 W |
| Dimensions (L × W × H) | 608 × 370 × 348 mm |
| Weight | 38 kg |
How a run works
Rotor and load
Place the rotor on the drive shaft, put the open tubes in symmetrically and close the lid.
Run
Choose a stored program, or set time and temperature — in one or two steps — and press start. The LACEVAC6 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 the pump switches off, the chamber is vented and the rotor stops. If the power fails, the chamber is vented automatically.
Chamber, vacuum path and cold trap
Vapour leaves the heated chamber of the LACEVAC6 vacuum centrifugal concentrator towards the built-in 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 stainless steel with a PTFE coating and the pump head is PTFE, so the instrument resists common organic solvents. The glass window lets you watch the run, and the digital vacuum gauge shows the pressure in numbers.
Standard delivery
- LACEVAC6 vacuum centrifugal concentrator with built-in pump.
- Rotor for 90 × 1.5 mL tubes.
- Mains cable.
- Operating manual.
- Declaration of conformity and warranty documentation.
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 LACEVAC6 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
- Solvent. Water and common organic solvents; tell us if acids are used.
- Tubes. Type and number per run decide the rotors.
- Temperature. Within RT+5 °C to 100 °C and safe for the sample.
- Cold trap. Recommended with organic solvents; it protects the built-in pump.
- Smaller, or with a set vacuum? See the comparison above.
- Open tubes and nitrogen instead? See the SACO nitrogen sample concentrators.
- Place of use. The LACEVAC6 vacuum centrifugal concentrator needs 608 × 370 mm on a stable, level bench and weighs 38 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 rotors, the options and the mains voltage version of the LACEVAC6 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.
