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- General laboratory consumables
- Occupational safety, Security
- Analytical measurement and testing
- Stirring, Shaking, Mixing
- Sample preparation
- Distillation, separation, filtration
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Heating and cooling technology
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Cooling
- Cryogenic tubes
- Cryogenic boxes
- Cryogenic racks
- Cryogenic accessories
- Biobanking
- Cryogenic storage tanks
- Liquid nitrogen-Accessories
- Dewar flasks
- Low and Ultra low temperature freezers
- Refrigerators and Freezers
- Refrigerators and Freezers ex protected
- Refrigerator and freezer accessories
- Dry ice instruments
- Ice machines
- Isolated transport boxes, cooling boxes
- Temperature regulators
- Heating
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Cooling
- Liquid Handling
- Vacuum technology, Drying, Dry storage
- Optical instruments and microscopes
- Cleaning and sterilisation
- Environmental-, soil-, water-, food analysis
- Chromatography
- Cleanroom
Centrifugation Tubes
Centrifuge tubes are specially designed to be placed in centrifuges to separate liquids, cells or other particles based on their density. During centrifugation, the contents are broken down into their components through rapid rotation around the fixed axis. The centrifugal force pushes the heavier components of the substance downwards, while the lighter ones remain at the top. In this way, solids can be reliably separated from liquids as well as substances of different densities.
Cryo-Safe™ Coolers
Use to protect samples on the bench, during transport, or in freezers with defrost cycle and fluctuating temperatures
Polycarbonate. A non-toxic freezing gel is isolated within the walls of the cooler, guaranteeing that labels or marks on the vials or tube are not damaged.
- The indexed and transparent (9.401 090, 9.401 091, 9.401 092) or gel-filled (9.401 093, 9.401 094) polycarbonate lid shows tube location and matches locations printed on the cooler
- Side handles ( 9.401 090, 9.401 091) or a wire handle for easy carrying
- Coolers can be stacked to save space and maximize freezer volume
- Rubber feet to prevent slipping
- All polycarbonate cooler body easy to clean
Cooling Block Systems, FreezeBox™
Blue. FreezeBox™ is a new, energy-saving, environmentally friendly and safe cooling equipment, without additives. It does not require electricity (except for pre-cooling the cores in the freezer) and no ice for low-temperature cooling of biological samples. The system can be used ice-free, is lightweight, easy to transport and ideal for the collection and storage of biological samples. It can be combined with interchangeable cores and different tube modules. Cooling cores can be tempered in a refrigerator or freezer and inserted into the FreezeBox™. For operation with dry ice, leave out the cooling core and fill with 200 g dry ice instead....
Cryogenic Boxes true north® Flatpack, PP Film
Reusable, economical and moisture resistant plastic. Made from polypropylene material. Easy self-assemble boxes shipped flat-packed saving space in the laboratory. More durable than card boxes as they are not susceptible to moisture. Significantly reduces the chance of mould. Suitable for repeated freezing and defrosting. Dividers included with the boxes....
Freezer boxes B35-50 / B35-85, up to -85 °C
The cold boxes are small benchtop units for cooling and freezing in all laboratories. Due in particular to its compact space-saving design and the low-noise cooling unit, the cold box is suitable for direct use in the workplace.
- Vacuum-Insulation: large interior space with small external dimensions and low power consumption
- Extremely low noise refrigeration unit
- Models with temperature range -85 °C with two-stage cascade refrigeration system
- with natural refrigerants (R-290, R-170)
- Interior made of high quality stainless steel
- Interior without fittings allows easy cleaning and disinfection
- Side air vent, so suitable for installation directly on walls
- Bushing (diameter 10 mm), e.g. for temperature monitoring with external sensors
- Maximum safety, due to mains-independent alarm, battery lasting approx. 72 hours
- Visual and audible signal
- Microprocessor-controlled with membrane keyboard and easy-to-read LED display
- Potential-free contact for connection to an external alarm system
- RS485 interface
- 100 mV/K-output for connection to a temperature recording system
- Lockable insulating door with door frame heating and double magnetic seal with additional sealing surface
- Stackable unit, max. 2 units
IsoTherm-System®
Modular system for transporting, storing, and gently thawing deep-frozen samples.
- Holds 24 tubes (0.5ml, 1.5ml, 2ml)
- IsoPack (cold pack) white for 0°C and blue for -21°C, for pre-cooling in the freezer
- IsoTherm cooling times from = 6 hrs. (0°C, white) and = 3 hrs. (-21°C, blue)
- No more melting ice baths (contamination risk)
- All system components can be used separately
- Racks can be stacked, are autoclavable, float in water and can be centrifuged in a microtitration plate rotor
Transport Container VOYAGEUR
The containers of the VOYAGEUR series are particularly intended for the transport of biological samples. The liquid nitrogen is absorbed in a porous substance, so that the storage of the samples takes place in the gaseous phase and even in a possible accident no liquid nitrogen can leak or splash out....
Bel-Art Midi Icepan Magic Touch 2, 4.0 ltr. with lid, blue, 21.8 x 22.9 x 30.4 cm (HxWxL)
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Centrifuge tubes as a customised solution
In order to meet the variety of different requirements, we offer centrifuges in a wide range of formats, sizes and materials.
Application and qualityCentrifuge tubes are used wherever the components need to be split - for example, for blood samples to separate the plasma, to isolate proteins or DNA, to collect cell cultures or microorganisms from cultures, for the concentration of particles from environmental samples... The range of applications is diverse.
The high demands placed on these analyses also mean that no compromises can be made when selecting the centrifuge tubes used. At Th. Geyer, we therefore focus on the highest quality and maximum safety - even at maximum speeds and high centrifugal pressure.
The materialYou can choose between plastic, glass and stainless steel for the raw materials used. While stainless steel usually plays a subordinate role, plastics such as polypropylene (PP), polyamide (PA), polyethylene (PE) or polycarbonate (PC) are the standard in laboratories and research environments. Depending on the type of plastic, centrifuge tubes can withstand very low to very high temperatures. They are stable against chemicals and can be translucent or opaque, depending on requirements.
Centrifuge tubes made of glass impress with their basic resistance to chemicals, acids, bases and organic solvents. The glass variants score points with their reusability and above-average durability. If required, glass allows a high degree of transparency and offers relatively easy handling If the material is subjected to high speeds during centrifugation, plastic is usually the better choice. Th. Geyer offers centrifuge tubes in both variants.The sizes
Th. Geyer meets the specific requirements for the dimensions and capacity of centrifuge tubes with a large selection of different sizes. These can be up to 500 ml, while sizes such as 50 mL and 15 mL are available for smaller filling volumes. In the micro range, centrifuge tubes are between 1.5 mL and 0.2 mL, which are mainly used in laboratories. Of course, we offer you a wide selection of all common formats.
The lid
During centrifugation, the lid of the centrifuge tube prevents liquid from leaking out. Traditionally, screw, push-in or plug-in lids are used for this purpose, which are easy to close. Micro centrifuge tubes are usually fitted with a snap-on cap. For very large variants, threaded lids ensure leakage protection. You will find both models with and without lids in our range. Depending on your choice, you can always order stoppers and the like separately.
The base
The different base variants also meet the respective requirements. The conical base with its slightly tapered shape allows for selective material collection, making separation and removal much easier Sample recovery is particularly high. Alternatively, you can also choose between self-standing centrifuge tubes with a flat base or a rounded base.
Benefit from our portfolio of centrifuge tubesAre you looking for centrifuge tubes for demanding applications? Th. Geyer offers a wide range of the highest quality. Functional, easy to handle and with an attractive price-performance ratio. Please feel free to send us your enquiry or contact us directly in person. We look forward to hearing from you!