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EnglishWhich VACUUBRAND vacuum pumps are recommended for common laboratory applications?
Updated
VACUUBRAND organizes its pump recommendations by application rather than by pump family, so the fastest way to find the right model is to start from what you are doing, not from a catalog number. The site lists recommended pumps for rotary evaporators, drying ovens, filtration, concentrators, reactors and synthesis, fine vacuum distillation, lyophilization (freeze drying), Schlenk lines, degassing, fore vacuum for HV and UHV, coating, cryo pump regeneration, and gloveboxes. If your application is on that list, you can go straight to the matching recommendation; if it is not, use the Vacuum Pump Selection Guide to specify your requirements and get product suggestions.
How the application-based recommendations work
Each application page pairs a workflow with the pump types that suit it. The logic behind the pairing is the required vacuum level and the nature of the vapor load:
- Diaphragm pumps are oil-free and reach down to 0.3 mbar — the usual choice for solvent evaporation, filtration, gel drying, and other wet chemistry where oil contamination or solvent attack on pump oil is a concern.
- Screw pumps are oil-free and reach down to 10⁻³ mbar, covering fine vacuum work without oil.
- Rotary vane pumps are oil-sealed and also reach down to 10⁻³ mbar, typically used where higher pumping speed at fine vacuum is needed and oil handling is acceptable.
The chemistry diaphragm pumps shown on the homepage illustrate the range within one family: the PC 3001 VARIO select (2 mbar, 2 m³/h), PC 3004 VARIO select (1.5 mbar, 4.6 m³/h), and PC 3012 NT VARIO select (1.5 mbar, 14.3 m³/h). The differences are ultimate vacuum and pumping speed, which is what you match to your application's vapor volume and required pressure.
Recommended pump by application
| Application | Typical pump type | Why it fits |
|---|---|---|
| Rotary evaporator | Chemistry diaphragm pump | Handles large solvent vapor loads, oil-free, chemically resistant |
| Drying oven | Diaphragm pump | Continuous duty at rough vacuum, no oil backstreaming into the oven |
| Filtration | Diaphragm pump or fluid aspiration system | Fluid aspiration systems are built for safe aspiration of cell supernatants |
| Concentrator | Diaphragm pump | Gentle, controlled vacuum for solvent removal |
| Reactors & synthesis | Chemistry diaphragm pump | Corrosion-resistant wetted parts for aggressive vapors |
| Fine vacuum distillation | Screw pump or rotary vane pump | Needs 10⁻³ mbar range |
| Lyophilization (freeze drying) | Diaphragm pump (often with controller) | Oil-free operation and precise vacuum control |
| Schlenk line | Diaphragm pump | Inert, oil-free operation for air- and moisture-sensitive work |
| Degassing | Diaphragm pump | Clean vacuum without oil vapor contaminating the sample |
| Fore vacuum for HV & UHV | Diaphragm or rotary vane pump | Backing pump matched to the high-vacuum stage |
| Coating | Screw or rotary vane pump | Fine vacuum required for deposition processes |
| Cryo pump regeneration | Suitable roughing pump | Controlled roughing during warm-up |
| Glovebox | Diaphragm pump | Oil-free, low-maintenance vacuum for an inert atmosphere |
Treat this as a starting point, not a final specification. Within each row, the correct model depends on chamber volume, solvent throughput, and target pressure.
Using the Vacuum Pump Selection Guide
The selection guide is the site's own tool for narrowing the choice when the application list alone is not enough:
- Choose your application from the list.
- Specify your requirements — the parameters that matter for your setup, such as required vacuum level and the vapors involved.
- Get your product recommendations and compare the suggested models.
The output is a shortlist of pumps, which you then compare on ultimate vacuum, pumping speed, and whether the wetted materials suit your chemicals.
Gauges and controllers as part of the setup
Pump selection is only part of the picture. VACUUBRAND also supplies:
- Vacuum gauges — chemically resistant devices for rough vacuum down to 1 mbar, fine vacuum down to 10⁻³ mbar, or combined ranges.
- VACUU·SELECT vacuum controller — for applications needing precise, reproducible vacuum control, with an intuitive operating concept aimed at lab convenience and efficiency.
For processes like lyophilization, distillation, or any protocol where the pressure profile must be repeatable, the controller is effectively part of the "recommended setup," not an optional extra.
Promotions and purchasing
The homepage currently shows a promotion: save 18%, with the promotion price stated as valid from September 15 until December 15, 2026. An online shop exists (there is a cart at shop.vacuubrand.com), and the site also offers a free inquiry form if you would rather have the selection confirmed before ordering. Check the shop for current pricing and availability, since the promotion window is time-limited.
Practical next step
If you already know your application, open that application's recommendation page and compare the listed models on vacuum level and pumping speed. If you are between applications or have unusual requirements, run the selection guide and then use the free inquiry to confirm the choice — especially for fine vacuum, coating, or HV/UHV backing, where the pump interacts with the rest of the vacuum system.