Description
Research 3 piston spring 5 mL purple is a dedicated replacement piston spring for Eppendorf Research® 3 single-channel pipettes in the 5 mL volume class. The component carries the characteristic purple colour code that matches the established Eppendorf volume identification system, allowing rapid visual recognition during pipette maintenance or reassembly. Produced by manufacturer Eppendorf, the spring restores the correct return force of the piston mechanism, supporting consistent stroke behaviour and reliable liquid handling performance in daily laboratory work. With a net weight of 0,002 kg and a gross weight of 0,003 kg the part remains compact and easy to handle during service operations. It is supplied as a single piece and is intended for trained personnel performing authorised pipette servicing. Typical use environments include molecular biology, biochemistry, analytical chemistry and general life-science laboratories that rely on Research® 3 instruments for precise volume transfer. Correct installation of this genuine piston spring helps maintain the mechanical integrity and long-term functionality of the pipette without altering its original design characteristics. The spring is manufactured in Germany and forms part of the official spare-parts portfolio for the Research® 3 series.
This article is part of Pipette stands, calibration & accessories, in Liquid handling.
Key features
- Pack size: 1 pc
- Colour code: purple
- Nominal volume: 5 mL
- Compatibility: Eppendorf Research® 3 single-channel pipettes
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Questions about Res.3 piston spring 5mL violet
What is this article?
Res.3 piston spring 5mL violet is the article on this page. Luminix Health distributes Eppendorf for laboratory use. It sits in Pipette stands, calibration & accessories, inside Liquid handling, in Instruments de précision.
A pipette stand holds piston pipettes upright so liquid does not run into the piston. Calibration accessories and certificates are how a pipette's delivered volume is shown to be inside tolerance. A stand is also a carousel. The certificate belongs to one pipette, identified by serial number.
A piston pipette delivers a set volume of liquid by air displacement or, for viscous and volatile liquids, by positive displacement. A single channel is the ordinary tool. A multichannel repeats the same volume across a row of a plate. A bottle-top dispenser meters reagent from the bottle it sits on. The accuracy is a property of the pipette and of how it is used, which is why calibration and a certificate exist. Piston-operated apparatus is treated under ISO laboratory apparatus. The volume unit sits with the BIPM and NIST.
Which category should I open next?
The category is Liquid handling. The sub-category is Pipette stands, calibration & accessories. The catalogue is Instruments de précision.
Shelves beside this one are Single-channel pipettes, Bottle-top dispensers, Multichannel pipettes and Electronic pipettes.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.