Thermo Fisher Scientific laboratory equipment

Buying guide

Choosing a Thermo Fisher Scientific laboratory equipment

Because this maker spans incubation, cold storage and centrifugation under one name, the first decision is which family you are actually buying into, since nothing transfers between them. Inside the Heracell CO2 line, match chamber volume to your throughput and check the decontamination route, as a high-temperature cycle and a copper chamber are serviced and validated differently. For Forma and TSX ultra-low freezers, the deciding figure is usable volume against your rack system, not nominal litres, and the compressor type governs recovery after a door opening. On Sorvall and Multifuge units, the rotor is the real purchase: confirm which rotors are included and their maximum rated speed, because a centrifuge body without the rotor you need is an incomplete instrument.

On a used unit, the wear points are specific. For centrifuges, ask what the seller can show on rotor hours and any speed derating, since a rotor has a defined fatigue life and is the component that ages. For CO2 incubators, the CO2 sensor and the door gasket are the parts that drift and perish, so recent calibration data and a sound seal matter more than cosmetic condition. For ultra-low freezers, ask after compressor hours and whether the unit holds minus 80 without excessive cycling. Parts for these families can be sourced via Questpair if a component needs replacing.

Price tracks family and completeness rather than age alone, which explains the width of the band: a bare refrigerator and a fully rotor-equipped high-speed centrifuge sit far apart. The compatibility trap worth naming is within this maker's own range, where rotor-to-body fit and rack-to-chamber fit are specific to the model and generation, so confirm the exact part numbers against the unit before you commit.

Heratherm, Heracell, Forma and Sorvall: the series that show up

Among the listings that specify a type, four families account for most of what sits under this maker's name. The Heratherm line covers general laboratory incubators, both gravity and mechanical convection, aimed at routine drying, warming and microbiology work. Heracell is the CO2 incubator family for cell and tissue culture, where atmosphere control rather than temperature alone is the point. Cold storage splits between Forma and TSX ultra-low freezers at minus 80 and the Forma and TSG lab and chromatography refrigerators higher up the range. On the separation side, Sorvall and the older Heraeus Multifuge and Megafuge names carry the benchtop and floor-standing centrifuges. Each family maps onto one of the types above, so a listing's series usually tells you what kind of work it was built for before you read the specification.

Where the incubators and the centrifuges actually diverge

The deciding specification differs by family, which is why these cannot be ranked against each other. Within the Heracell CO2 line the questions are chamber size, typically 160 or 240 litre, and the sterilisation method: high-temperature decontamination at 180 degrees C versus copper-lined chambers. Heratherm units separate on convection type, gravity for gentle work and mechanical for faster, more uniform recovery, and on temperature ceiling, commonly to 250 or 330 degrees C. Forma and TSX ultra-low freezers divide on cabinet volume, roughly 300 to 950 litre, and on whether the refrigeration is cascade or a variable-speed compressor, which decides pull-down time and energy draw. Sorvall and Multifuge centrifuges separate on maximum relative centrifugal force and on rotor type: a swing-out head for plates and tubes against a fixed-angle head for pelleting, with top speeds that run from a few thousand rpm on general benchtop units into the tens of thousands on high-speed floor models. The parameter that matters is the one tied to the work, so a culture lab weighs chamber atmosphere while a prep lab weighs force and rotor fit.

How condition and price break down across the listings

98 percent of the listings are used. Prices run from EUR 1 to EUR 533.942. The average sits at EUR 3.913. That range covers a great deal of ground, because a loose accessory or consumable and a complete minus 80 freezer are both counted here, and the two belong to different purchasing decisions entirely. Used and refurbished units carry lower prices than new stock, which is the one difference the catalogue data supports directly. Where a warranty matters on a given unit, it is arranged in consultation for that specific listing rather than set across the catalogue.