SIGMA 2-7 Laboratory bench centrifuge

Fixed-angle rotor 20 x 15 ml for Sigma 2-7

The fixed-angle rotor impresses in modern laboratory research and diagnostics with its high capacity and reliability. Developed and manufactured by Sigma Laboratory Centrifuges, it is specially designed to meet the requirements of demanding laboratories. This rotor allows larger sample volumes to be processed in the shortest possible time, which is a decisive advantage, particularly in areas such as molecular biology, clinical chemistry or haematology. Compared to similar products, this rotor stands out thanks to its combination of precision, user-friendliness and solid workmanship, which ensures maximum safety.

Design and technical features

High speeds during centrifugation generate high loads, which is why resistant materials and a well-thought-out design are essential. The rotor has several special features that make it robust and versatile at the same time:

- Maximum speed: 4000 min-¹
- Maximum relative centrifugal force (RCF): 2486 x g
- Capacity: 20 tubes with a volume of 15 ml each (round-bottom, Falcon or comparable medical tubes)
- Maximum tube length: 120 mm with a diameter of up to 17 mm
- Compatible with various adapters
- CE marking and manufactured in accordance with ISO standards
- Constructed from sturdy, chemically resistant materials

This means that blood collection tubes, culture tubes or sample vessels for microbiological testing can be used without any problems. The design takes everyday laboratory scenarios into account and guarantees safe handling even with repeated use.

In addition, the design enables balanced weight distribution, which is an important prerequisite for reliable measurement results. Thanks to its solid workmanship, the rotor also supports longer running times. This increases efficiency without compromising on quality.

Optimal customisation options

Several adapter options are available to meet different requirements. These allow vessels between 4.5 ml and 15 ml to be centrifuged reliably, ensuring maximum flexibility. Common adapters include:

This makes it easy to adapt samples to different protocols. The rotor lid closes securely and holds the contents reliably in place even at maximum speed. This reduces the risk of premature damage and guarantees a long service life.

Examples of applications in everyday laboratory work

To illustrate the versatility of this rotor even more clearly, here are some specific examples:

- Blood diagnostics: Separation of blood samples, e.g. for the quantitative determination of serum, plasma or blood cells
- Microbiological investigations: clarification of bacterial suspensions, removal of cell debris or preparation of culture media
- Cell and tissue cultures: separation, washing and harvesting of cells as well as conditioning of culture supernatants
- Molecular analysis: Sample preparation for DNA and RNA isolation, protein extraction or enzyme tests. These areas often require high sample density, reproducible results and fast sample processing - a profile that the rotor reliably fulfils.

Certified and tested by laboratories

As safety and quality are paramount in laboratory processes, the rotor is manufactured in accordance with current guidelines and standards:

- CE marking: Compliance with European health and safety regulations
- ISO standards: Ensuring consistent quality and reliability

Compliance with these standards means that the rotor can be integrated into existing workflows with virtually no concerns. At the same time, laboratories benefit from maximum flexibility in handling and planning reliability for certification processes.

FAQs

What types of vessels fit in this rotor?

The rotor accommodates vessels with a volume of 15 ml, but can also hold vessels between 4.5 ml and 15 ml with the appropriate adapters. The maximum length of 120 mm and diameter of up to 17 mm are important.

What is the maximum speed at which the rotor can be operated?

The maximum speed is 4000 min-¹, with a permissible gravitational field of 2486 x g.

Is the rotor also suitable for sensitive samples?

Yes, thanks to its stable construction and balanced weight distribution, it is also well suited for sensitive samples. However, it is always important to carefully balance the vessels.

What standards and certificates are available?

It is validated in accordance with CE marking and complies with current ISO standards, ensuring the highest safety and quality requirements are met.

Conclusion

The fixed-angle rotor offers a successful combination of high capacity, flexibility through adapter inserts and impressive stability. It is an excellent solution for laboratories of all sizes that rely on reliable and safe centrifugation. Its sophisticated design and CE and ISO certification are proof that this rotor is a professional and powerful tool.

Swing-out rotor, 2-place, for Sigma 2-7

This rotor offers a modern centrifugation solution for demanding laboratories that require efficient and reliable results. Designed for the Sigma 2-7 centrifuge, its solid construction and clear focus on precision ensure smooth operation in everyday work. Compared to similar systems on the market, it scores points for its easy maintenance, wide range of adapters and high compatibility with different sample sizes.

The robust construction and specially tailored design ensure that a wide variety of vessel types can be processed effortlessly. Laboratory professionals benefit from consistently stable performance, short processing times and minimal maintenance. Anyone looking for a flexible and adaptable solution for medical, biotechnological or research-oriented applications will find this feature ideal.

Performance characteristics and range of functions

The product impresses with its combination of reliability, ergonomic handling and high speed. Whether in clinical laboratories, research departments or biotechnological facilities, the rotor delivers consistent results and excellent balance. Other notable advantages include:

Thanks to its sophisticated design, the rotating components can be used optimally to achieve reliable separation results. This not only increases throughput, but also simplifies everyday laboratory work.

Fields of application in detail

A flexible centrifuge solution is particularly sought after in clinical laboratories, which have to process a large number of different samples. This swing-out rotor is ideal for quickly centrifuging blood or plasma samples in tubes up to 110 mm in length. At the same time, it is a reliable option for research-oriented environments where cell cultures and sample volumes of 5 to 15 ml are frequently used. Powerful centrifugation can play a decisive role in obtaining flawless analysis materials, especially when preparing cell lysates.

It is also in demand in the biotechnology sector when it comes to purifying or separating microorganisms and biomolecules. For example, if bacterial cultures are used for the production of recombinant proteins or the extraction of plasmid DNA, a reliable centrifuge makes the process considerably easier. Its ease of use is also practical for laboratories that rely on fast, reproducible work in routine operations.

Important technical data

For a quick overview, here are the essential technical specifications in compact form: - Maximum speed: 4000 min-¹
- Capacity: 2 places
- Compatible with 4-fold carrier 13035
- User-friendly design without rotor bolts requiring lubrication
- Tube compatibility: tubes up to 110 mm in length, 5-15 ml round-bottom

In addition to these key features, users benefit from extensive adapter options. For example, the rotor can be equipped with reduction inserts for vessels of different diameters and lengths in order to process an even wider range of tubes and containers.

Adapter options

- Reducing insert for 1 vessel approx. 5 ml (Ø 13.5/17 × 70-82 mm)
- Reducing insert for 1 vessel approx. 5 ml (Ø 12.8 × 75-90 mm)
- Reducing insert for 1 vessel 4.5-7 ml (Ø 12.3 × 90-105 mm)

These modular applications make the rotor an extremely versatile component in everyday laboratory work. In addition, the CE marking and compliance with relevant ISO standards ensure that high quality and safety standards are met.

FAQs

What types of samples can be processed with the rotor?

The rotor is specially designed for cylindrical sample vessels with 5-15 ml round bottoms, but is also suitable for medical tubes up to a length of 110 mm. Thanks to the adapter options, a wide variety of vessel sizes can be securely clamped in place.

Is regular maintenance of the rotor bolts necessary?

No. The rotor bolts are designed so that they do not need to be greased, which significantly reduces maintenance requirements. This allows you to concentrate on ongoing operations without having to perform time-consuming lubrication and inspection work.

Which centrifuges is this unit compatible with?

It was developed exclusively for the Sigma 2-7 centrifuge and fits exactly onto its mounting system. This ensures a particularly high level of operational reliability and compatibility.

What areas of application does the centrifuge cover?

It covers a wide range of applications. Ideal applications can be found in clinical areas for serum and blood collection, in biomedical laboratories for cell preparation and in research institutes for the processing of sample materials.

Conclusion

This rotor provides laboratories with a powerful and easy-to-maintain accessory that makes their daily work much easier. With a maximum speed of 4000 min-¹, a capacity of two tubes and compatibility with a wide range of tube sizes, a large number of samples can be processed in a very short time. At the same time, the rotor meets the most important industry requirements through CE certification and compliance with high ISO standards. The comprehensive selection of adapters and low-maintenance design underline its practical benefits for professional users. Anyone who needs a high-quality and reliable spinning option for the Sigma 2-7 will find this swing-out rotor to be a convincing and long-term solution.

Swing-out rotor, 4-place, for Sigma 2-7

The rotor presented here is specially designed for use in Sigma 2-7 series centrifuges and impresses with its flexible handling. Thanks to its robust construction and four sample positions, it guarantees uniform centrifugation, making it the preferred choice in demanding laboratory environments. Compared to conventional rotor types, it offers greater variability for different sample volumes and vessel types, thus meeting a wide range of requirements in research and diagnostics.

Performance features and technical details

For optimum laboratory performance, this rotor combines various well-designed features and enables safe and efficient centrifugation. The most important points can be summarised as follows:

- Maximum speed of up to 4000 min-¹ for fast and reliable separation processes
- Four holders that support round buckets (model 13299) or 6-fold carriers (model 13296)
- Suitable for 5 ml to 15 ml round-bottom tubes and medical tubes up to 110 mm in length
- Reducing insert for vessels with a diameter of 4.5-7 ml and a length of 90-105 mm
- Excellent compatibility with common laboratory requirements in clinical diagnostics and research
- Easy to maintain thanks to the absence of rotor pins that require lubrication
- Robustly constructed individual components for reliable long-term operation With these features, the rotor makes a significant contribution to increasing efficiency in the laboratory. Its manufacture under strict quality and safety guidelines ensures reliable results in every application. In addition, the well-thought-out design offers users intuitive handling, which saves time and resources, especially in busy everyday laboratory work.

Its stable and balanced construction minimises vibrations, which are particularly undesirable at higher speeds. This not only results in increased user safety, but also prevents possible damage to samples or the device.

Certifications and standards

The rotor is developed in close accordance with current standards and certifications. This ensures that the product complies with relevant standards and meets the highest quality requirements:

- CE marking for compliance with European safety and health requirements
- Manufactured in accordance with ISO quality management guidelines to ensure long-term reliable performance

These certifications enable specialist laboratories to ensure that the rotor meets all prescribed safety, health and quality requirements.

Application examples

This versatile rotor covers numerous fields of application that are important in both the medical and research sectors. Examples include:

1. Processing blood samples in clinical diagnostics, for example to obtain serum or plasma.
2. Centrifuging samples in molecular biology that are required for DNA or RNA extraction procedures.
3. Sedimentation in biochemistry, e.g. to separate certain proteins or enzymes.
4. Checking particle densities in quality control of industrial processes to ensure consistent product standards

In addition, it is also recommended for use in cell biology to separate cell fractions or subcellular components when gentle yet effective centrifugation is required. In combination with the appropriate adapters, the range of vessel sizes can be easily covered.

FAQs

How are different vessels securely fixed in the rotor?

The vessels are secured using appropriate round cups or 6-fold carriers that are precisely matched to the vessel dimensions. In addition, a reduction insert can be used to securely fix smaller vessels and prevent them from slipping during centrifugation.

Does the device require special maintenance?

Regular cleaning and inspection of the rotor holder is recommended to achieve optimal results in the long term. However, this model does not require any greasing of the rotor bolts.

What are the maximum capacities?

Thanks to the four slots and the use of 5-15 ml tubes (as well as medical tubes up to 110 mm in length), a large number of samples can be processed in parallel per centrifugation run. This saves time and increases productivity in the laboratory.

What other safety measures should be observed?

In addition to observing the permissible speed (4000 min-¹), it is essential to ensure that all vessels are correctly balanced. Furthermore, before each centrifugation process, it should be checked that all rotor holders and adapters are securely fastened.

Conclusion

Thanks to its sophisticated design and high flexibility, this rotor offers above-average performance in clinical, scientific and industrial environments. It impresses with its robust design, compatibility with different tube types and easy maintenance. With its CE and ISO-compliant manufacturing process, it reliably meets modern safety and quality requirements. This swing-out rotor is the ideal solution for laboratories looking for a reliable partner for a wide range of applications in their Sigma 2-7 series centrifuges.

Spare Nylon bucket for 1 tube 15 ml

1 set = 2 pcs.

Polypropylene stopper for polystyrene or polypropylene tubes 14 ml

Rubber adapter for glass tubes

1 set = 2 pcs.

Rubber adapter for glass tubes

• Glas tube 10 - 12 ml
• Glas tube 13,5 ml

1 set = 2 pcs.

Rubber adapter for glass tubes 15 ml

1 set = 2 pcs.

Centrifuge glass tube 7 ml, max. 4.000 x g, Ø 12 x 100 mm, graduated 1 up to 7 ml in 0.5 ml increments

Centrifuge glass tube 6 ml, max. 4.000 x g, Ø 12 x 100 mm

Polystyrene tube 5 ml (RIA), Ø 12 x 75 mm

Culture tube Nunc, 15 ml, conical, polypropylene, incl. screw cap Ø 23 mm

Centrifuge glass tube 12 ml, max. 4.000 x g, Ø 16 x 100 mm, graduated 0.1 ml up to 10 ml in 0.1 ml increments

Polypropylene Co-Polymer (PPCO) tube 14 ml, Ø 17 x 100 mm

Polystyrene tube 14 ml, Ø 17 x 100 mm, max. 4.500 x g

Centrifuge glass tube 10 - 12 ml, max. 4.000 x g
Ø 16 x 100 mm

Adapter for 1 tube 4.5 - 7 ml, max. Ø 12.3 x 90 - 105 mm

1 set = 2 pcs.

Adapter for 1 tube approx. 5 ml, max. Ø 12.8 x 75 - 90 mm, e.g. hemolysis-tubes

1 set = 2 pcs.

Adapter for 1 tube approx. 5 ml, max. Ø 13.5/17 x 70  - 82 mm, e.g. Vacutainer

1 set = 2 pcs.

Rubber adapter for glass tubes

1 set = 2 pcs.

Multiple carrier made of plastic for 4 tubes 5 to 15 ml, round bottom, max. Ø 17/19 x 80 - 105 mm,
e.g. Monovettes  9 - 10 ml, Vacutainer,

1 set = 2 pcs.

Polystyrene tube 5 ml (RIA), Ø 12 x 75 mm

Polypropylene po-polymer (PPCO) tube 10 ml, incl. screw cap, Ø 16,1 x 81,1 mm

Centrifuge glass tube 12 ml, max. 4.000 x g, Ø 16 x 100 mm, graduated 0.1 ml up to 10 ml in 0.1 ml increments

Polypropylene Co-Polymer (PPCO) tube 14 ml, Ø 17 x 100 mm

Glass tube 13.5 ml, max. 4.000 x g,
Ø 17 x 110 mm

Polystyrene tube 14 ml, Ø 17 x 100 mm, max. 4.500 x g

Centrifuge glass tube 10 - 12 ml, max. 4.000 x g
Ø 16 x 100 mm

Polycarbonate tube 10 ml, Ø 16.1 x 81.1 mm, incl. screw cap

Polyfluor tube 10 ml, Ø 16.1 x 81.1 mm, incl. screw cap

Adapter for 1 tube 4.5 - 7 ml, max. Ø 12.3 x 90 - 105 mm

1 set = 2 pcs.

Adapter for 1 tube approx. 5 ml, max. Ø 12.8 x 75 - 90 mm, e.g. hemolysis-tubes

1 set = 2 pcs.

Adapter for 1 tube approx. 5 ml, max. Ø 13.5/17 x 70  - 82 mm, e.g. Vacutainer

1 set = 2 pcs.

Centrifuge glass tube 6 ml, max. 4.000 x g, Ø 12 x 100 mm

Round carrier for 4 round bottom tubes 5 - 7 ml, max. Ø 13.5/17.5 x 70 - 110 mm, e.g. RIA tubes, vacutainer-, hemolysis tubes

1 set = 2 pieces

Centrifuge glass tube 109 ml, Ø 44 x 100 mm, effective 78 ml, incl. screw cap Schott GL 32

Centrifuge glass tube 100 ml, max. 4.000 x g, Ø 44 x 100 mm.

Polycarbonate tube 110 ml, Ø 45 x 100 mm, graduated 2 up to 100 ml in 2 ml increments

Adapter for 1 tube 4.5 - 7 ml, max. Ø 12.3 x 90 - 105 mm

1 set = 2 pcs.

Polyfluor tube 10 ml, Ø 16.1 x 81.1 mm, incl. screw cap

Polycarbonate tube 10 ml, Ø 16.1 x 81.1 mm, incl. screw cap

Centrifuge glass tube 10 - 12 ml, max. 4.000 x g
Ø 16 x 100 mm

Polystyrene tube 14 ml, Ø 17 x 100 mm, max. 4.500 x g

Glass tube 13.5 ml, max. 4.000 x g,
Ø 17 x 110 mm

Polypropylene Co-Polymer (PPCO) tube 14 ml, Ø 17 x 100 mm

Centrifuge glass tube 12 ml, max. 4.000 x g, Ø 16 x 100 mm, graduated 0.1 ml up to 10 ml in 0.1 ml increments