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Small diaphragm vacuum pump KNF N840.3ST.4018 for laboratory vacuum applications in biotechnology and diagnostics
The KNF N840.3ST.4018 is a small diaphragm vacuum pump widely used in laboratory environments requiring oil-free vacuum generation, essential in molecular diagnostics and bioprocessing workflows. This compact diaphragm pump delivers reliable vacuum performance without contamination risk, critical for sensitive biotechnological applications such as synthetic biology research and biopharmaceutical production pipelines.
This pump is critical in setups demanding compact, reliable vacuum sources that maintain sample integrity by preventing oil contamination, thereby supporting advanced molecular and cell biology protocols.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
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We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 19 October 2026
