PCR equipment

Buying guide

The thermal performance of the block settles most PCR purchases, because it governs both the assays an instrument can run and how long each run takes. Ramp rate, the speed at which the block moves between temperatures, decides throughput: a fast-ramping unit shortens a 40-cycle protocol by a significant margin over a slower one, which matters when a lab processes plates back to back. Block format matters alongside it. A 96-well block suits routine work, a 384-well block raises capacity for screening, and interchangeable blocks let one chassis serve different plate formats. Where the work is comparative, a gradient block runs a range of annealing temperatures across the plate in a single pass, so a buyer optimising a new primer pair should confirm the instrument offers one.

Whether the instrument reads fluorescence in real time is the second decision, and it is a different purchase rather than a feature. A plain thermal cycler amplifies and stops; a real-time, or quantitative, instrument measures product accumulation cycle by cycle and reports a quantity. The number of optical channels on a real-time system fixes how many targets it can distinguish in one well, so a lab running multiplex assays needs more channels than one running single-target quantification. Buyers moving from endpoint to quantitative work should budget for the optics, which account for much of the price gap between the two classes.

On a used unit, verify the block and the optics before anything else. Thermal blocks degrade with thousands of cycles, and a worn block holds temperature unevenly across the wells, which shows up as inconsistent results rather than an obvious fault. Ask for a recent temperature-uniformity check, confirm the lamp or LED hours on a real-time system, and establish that the control software still runs on a current operating system, since older instruments often depend on a specific legacy version.

What a PCR instrument costs on this marketplace spans a wide band, from EUR 1 for a consumable or accessory to EUR 97.711 for a high-channel real-time system. The bulk of complete thermal cyclers sits well below the top of that range, so a buyer working to a fixed budget has real choice among the mid-range instruments. Refurbished and used units listed for sale are more affordable than new, which is why most of the equipment here falls into that category, and Applied Biosystems, Bio-Rad, Eppendorf, Roche, Agilent are the names a buyer will meet most often when comparing models at a given price.

Types of PCR equipment

Which PCR instrument types are listed?

Among the listings that specify a type, the split runs along one line: whether the instrument reads the reaction as it happens. Thermal cyclers, also written as PCR thermal cyclers or PCR machines, drive the amplification and stop, giving an endpoint product a researcher then analyses separately, typically by gel electrophoresis. They are the standard tool for routine molecular biology, for cloning, and for preparing templates ahead of sequencing. Real-time PCR systems, the quantitative PCR instruments in the same list, add optics that measure fluorescence during each cycle, so the instrument reports how much target was present at the start. That capability makes them the workhorse of molecular diagnostics and gene expression studies, where a quantity, not just a yes or no, is the result. The wider heading of molecular biology equipment covers the accessories and consumables that sit alongside both.

The polymerase chain reaction underpins a large part of modern biotechnology, and the instrument type a lab chooses follows the work it does. Quantitative PCR is central to molecular diagnostics and to genomics, where it validates sequencing results and measures gene expression across samples. Endpoint thermal cycling supports cloning, mutagenesis and library preparation in synthetic biology and molecular cloning workflows. Real-time instruments also carry much of the load in microbiology for pathogen detection, and both classes feed into proteomics and cell culture research wherever a nucleic acid has to be amplified before it can be studied. A buyer searching for a real-time PCR system for gene expression analysis, or a gradient thermal cycler for primer optimisation, is describing the instrument and the field it serves in one phrase, and both map directly onto the types listed here.

The brands behind the PCR listings

The names a buyer meets most often are Applied Biosystems, Bio-Rad, Eppendorf, Roche, Agilent. For a buyer, that concentration is useful on two fronts. Consumables and replacement parts for the common platforms are easier to source, because the plates, caps and optical seals that fit a widely sold instrument stay in supply long after a niche model's do not. It also makes models easy to compare: where several suppliers list the same well-known chassis, a buyer can weigh condition and price directly rather than guessing at an unfamiliar instrument. Real-time systems from these makers tend to sit at the higher end of the price range, reflecting their optics, while basic thermal cyclers from the same brands populate the mid and lower bands.

What a used PCR instrument costs here

The condition mix leans heavily one way: 96 percent of the listings are used, the remainder new. Prices run from EUR 1 to EUR 97.711. That spread covers everything from a single consumable at the floor to a multi-channel real-time platform at the ceiling, with complete thermal cyclers occupying the middle. Used and refurbished units are listed at lower prices than new, which is the practical reason the catalogue tilts toward them. Where a buyer wants to weigh a used instrument against a new one, the individual listing carries the detail, and a warranty is arranged in consultation for that specific listing.