Sigma Laboratory Centrifuges

Small but powerful

Compact and powerful – those are the characteristics of the Sigma 1-14 in a nutshell. The technical features include a maximum speed of 14,800 rpm and a maximum RCF of 16,163 x g with a capacity of 24 x 1.5–2 ml.
Large buttons and a large, highly legible display make the Sigma 1-14 extremely easy to operate.

Only Sigma is original
Sigma centrifuges are known for their performance and reliability as well as a high standard of safety. We have been working on this quality principle for 40 years. Because of this we want to warn our customers of product copies.

Sigma supplies matching fixed-angle, swing-out and drum rotors for all Sigma centrifuges. Sigma rotors are precision-made from modern, certified high-performance materials with traceable batch numbers. Thanks to many years of experience and close contact with our customers, we are able to offer an extensive selection of rotors. Sigma rotors are characterised by extra capacity or higher maximum speed. Rotors can be operated continuously at maximum speed and +4°C in nearly all Sigma centrifuges.

With low maintenance effort, Sigma rotors can be used for very many cycles with maximum load and at maximum speed, in most cases up to 50,000 cycles. In addition to current models, rotors are also available for discontinued product lines.

Remarkably easy to use

Attractive design meets ease of use. The Sigma 1-16 is a breeze to use – you can even close the motorized lid lock with a single finger. Along with user convenience, the unit features a durable, low-maintenance stainless steel bowl. The maximum capacity of the Sigma 1-16 is 24 x 1.5–2 ml or 36 x 1.5–2 ml in a single batch at an RCF of more than 20,000 x g.

Concentrating on the essentials

This all-rounder features user-friendly, intuitive operation. The Sigma 2-16KHL has all the technical features of the Sigma 2-16KL plus integrated heating, which makes it ideal for centrifuging haematocrit tubes at 37°C body temperature. The Sigma 2-16KHL can also be operated with inert gas as an option.

High performance in a small package

The Sigma 2-16P scores with a top-of-class RCF for fixed-angle rotors.
This compact model is highly versatile. A large selection of matching accessories and high performance make this centrifuge a true all-rounder.

The specialist for cytocentrifugation

The new Sigma 2-7 Cyto combines the highlights of Sigma 2-7 with state-of-the-art cytocentrifugation technology. It accommodates closed cytology rotors capable of carrying a maximum of twelve RESOPSIN® or Shandon™ cytology clips. The closed and easily removable cytology rotors ensure outstanding safety measures. Loading and unloading of the rotor can take place under the safety cabinet protecting user and sample before, during and after the centrifugal run. The compact centrifuge saves space in the laboratory, especially by the possibility to mount a 4 x 100 ml swing-out rotor for cell harvest in one and the same centrifuge. With its maximum speed of 2,000 rpm and two sets of acceleration and breaking profiles, Sigma 2-7 Cyto is perfectly suited for centrifugation of sensitive cytology samples and cells requiring gentle handling. Only available outside of Germany. In Germany, please contact our partner RESOLAB (www.resolab.de/) for RESOSPIN PRO®.

Intuitive operation in an all-rounder

Like the Sigma 3-16L, the Sigma 3-16KL refrigerated general-purpose centrifuge has a wide range of applications. The intuitive user interface with patented one-button control and illuminated buttons makes it easy to operate. It fits into the work environment with a pleasantly low noise level and achieves 4°C at maximum speed.

For demanding users

Featuring patented user-friendly one-button control (Spincontrol S) and a motorized lid lock, the Sigma 3-18KHS is ideal for demanding users who need extended operating features.

The centrifuge is designed for routine and research tasks in laboratories.
LED illumination, a choice of five languages, speed up to 18,000 rpm and a broad range of accessories are just a few of the selling points. The Sigma 3-18KHS additionally features integrated heating. As an option, the Sigma 3-18KHS can be operated with inert gas.

In a class of its own

High speed and easy operation. With its patented one-button control (Spincontrol S) and motorized lid lock, the Sigma 3-30KS centrifuge is remarkably easy to use, and it offers a broad range of options. LED illumination, a choice of six languages, a maximum RCF of over 70,000 x g and pleasantly low-noise operation are the factors that make this centrifuge, which fills the niche between standard and ultra centrifuges, so unique.

Especially high performance

Designed for continuous service, the Sigma 4-16KHS delivers stable and reliable operation. The centrifuge also features especially good cooling performance and achieves 4°C at maximum speed. The motorized lid lock and the patented user-friendly one-button control (Spincontrol S) make it especially easy to use.

A large range of accessories and a variety of rotors made from aluminium for high thermal conductivity allow a broad spectrum of applications. The Sigma 4-16KHS additionally features integrated heating. It can also be operated with inert gas as an option.

Sturdy, powerful and versatile

The Sigma 4-16S sets the standard for general-purpose centrifuges.
It boasts high speed with fixed-angle rotors and gentle acceleration with swing-out rotors. The motorized lid lock and the patented user-friendly one-button control (Spincontrol S) make it especially easy to use.
High-quality finishing and a broad range of accessories assure top-class results.

High performance, low noise and high capacity

The main strength of the Sigma 4-5L centrifuge is its high throughput capacity, which is a key factor for hospital use. Other advantages of this laboratory centrifuge include high motor torque for fast acceleration, minimal temperature rise and low operating noise level.

The Sigma 4-5L combines unusually high performance with quiet operation. Automatic lid opening and one-button control make things even easier for users, and the stainless steel rotor chamber is especially easy to clean.

Please click here for more informtion about sample temperature during high throughput ambient temperature centrifugation using Sigma 4-5L

Performance matching a stand-alone centrifuge

The refrigerated version of the Sigma 6-16S. It can easily hold its own against stand-alone centrifuges. It is suitable for use with a variety of swing-out and fixed-angle rotors. A variety of adapters enable the Sigma 6-16KS to accommodate charges from 4 x 800 ml to microtubes. The patented one-button control (Spincontrol S) and the motorized lid lock make operation especially easy.

User-friendly stand-alone centrifuge for blood banks

The Sigma 8KBS stand-alone refrigerated centrifuge is optimised for the needs of blood banks. The motorized lid lock and its patented one-button control (Spincontrol S) make it especially easy to use.
The maximum capacity is 12 blood bags on the swing-out rotor. The centrifuge can optionally be equipped with functions for professional data handling in blood banks, based on the ISBT 128 barcode standard.
The centrifuge has a low loading height, is pleasantly quiet in operation, and has low power consumption The centrifuge is optionally available with water cooling.

Please read our new broschure Sigma Data Interface to get more information about using the controller Spincontral S for quality management in laboratory processes.

Floor-standing centrifuge Sigma 8KBS - now with a new design

Powerful, low-vibration and quiet

Small, quiet and powerful – those are the hallmarks of the Sigma 1-7. This new small centrifuge is excellently suited to the separation of blood or urine samples. The compact size makes it ideal for medical practices, veterinarians and small laboratories. It can also be put to good use for environmental analysis and in various educational institutions, such as schools or universities. The perfectly matched fixed-angle rotor of the Sigma 1-7 is well suited to the demands and requirements of small to medium volumes of samples.

Like its partner Sigma 1-14, the refrigerated version is compact and has impressive performance figures. The Sigma 1-14K refrigerated centrifuge is the most compact refrigerated centrifuge commercially available and has a maximum capacity of 24 x 1.5–2 ml. Large buttons and a large, highly legible display make the Sigma 1-14K extremely easy to operate. It easily achieves +4°C at maximum speed.

Energy-efficient and quiet

Like the Sigma 1-16, the Sigma 1-16K refrigerated centrifuge is extremely easy to use with its motorized lid lock and has a durable, low-maintenance stainless steel bowl. The Sigma 1-16K also features a fan control that adjusts the fan speed according to the necessary cooling capacity, making it up to 60% quieter and reducing power consumption. At maximum speed the Sigma 1-16K reliably achieves +4

Concentrating on the essentials

This compact, general-purpose Sigma refrigerated centrifuge has all the essential features you expect in an all-rounder. It also boasts patented, intuitive one-button control with user-friendly illuminated buttons, as well as a convenient safety feature: cycle counting for each rotor with an indication when the rated limit is reached. The Sigma easily achieves +4°C at maximum speed.

High performance with a new design

The new Sigma 2-7 arose from the experiences and desires of our customers. The technical features of this centrifuge are impressive: stainless steel bowl, imbalance switch, motorised lid lock, innovative run display with blue LEDs, and process reliability. The centrifuge is also very quiet in operation. Specimens are only slightly warmed, which is important for blood specimen tubes in particular. Together with a versatile, modular swing-out rotor, the foundation is laid for a successful career in many laboratories.

Intuitive operation and a wide range of applications

The general-purpose Sigma 3-16L centrifuge is at home in many areas. Operation is convenient and intuitive with patented one-button control and illuminated buttons. A key safety feature is cycle counting for each rotor with an indication when the rated limit is reached. The centrifuge can handle specimens up to a maximum capacity of 4 x 400 ml.

Intuitive operation and a wide range of applications

The general-purpose Sigma 3-16L centrifuge is at home in many areas. Operation is convenient and intuitive with patented one-button control and illuminated buttons. A key safety feature is cycle counting for each rotor with an indication when the rated limit is reached. The centrifuge can handle specimens up to a maximum capacity of 4 x 400 ml.

Top class for demanding users

Featuring patented user-friendly one-button control (Spincontrol S) and a motorized lid lock, the Sigma 3-18KS is ideal for demanding users who need extended operating features.

The centrifuge is designed for routine and research tasks in laboratories.
LED illumination, a choice of five languages, speed up to 18,000 rpm and a broad range of accessories are just a few of the selling points.

In a class of its own

High speed and easy operation. With its patented one-button control (Spincontrol S) and motorized lid lock, the Sigma 3-30KS centrifuge is remarkably easy to use, and it offers a broad range of options. LED illumination, a choice of six languages, a maximum RCF of over 70,000 x g and pleasantly low-noise operation are the factors that make this centrifuge, which fills the niche between standard and ultra centrifuges, so unique.

Especially high performance

Designed for continuous service, the Sigma 4-16KS is as precise and reliable as a Swiss watch. The centrifuge also features especially good cooling performance and achieves 4°C at maximum speed. The motorized lid lock and the patented user-friendly one-button control (Spincontrol S) make it especially easy to use.

A large range of accessories and a variety of rotors made from aluminium for high thermal conductivity allow a broad spectrum of applications.

Centrifuge for automation

The refrigerated centrifuge Sigma 4-5KRL has specifically been developed for system integration and can be easily integrated into any workflow. Thanks to a lid opening time of only 3 seconds and high-precision positioning of rotor and buckets, this particularly smooth centrifuge is a reliable tool offering 24/7 availability.

This robust device is very undemanding and gets by with only one service interval per year. Tubes, for which Sigma manufactures customized adapters upon request, as well as microtiter plates can be centrifuged with the Sigma 4-5KRL.

If you got any questions, please contact our support hotline for help.

Performance matching a stand-alone centrifuge

The Sigma 6-16KHS can easily hold its own against stand-alone centrifuges. It is suitable for use with a variety of swing-out and fixed-angle rotors. A variety of adapters enable the Sigma 6-16KHS to accommodate charges from 4 x 800 ml to microtubes. The patented one-button control (Spincontrol S) and the motorized lid lock make operation especially easy. The Sigma 6-16KHS additionally features integrated heating. It can also be operated with inert gas as an option.

Performance matching a stand-alone centrifuge

The Sigma 6-16S combines the compact dimensions of a benchtop centrifuge with the performance of a stand-alone centrifuge. It is suitable for use with a variety of swing-out and fixed-angle rotors. The patented one-button control (Spincontrol S) and the motorized lid lock make operation especially easy. A variety of adapters enable the Sigma 6-16S to accommodate charges from 4 x 800 ml to microtubes.

12 litre capacity for production

The Sigma 8KS compact stand-alone refrigerated centrifuge can be used for all tasks in blood banks, medicine and research. The maximum capacity ranges from 6 x 1 l on the fixed-angle rotor to 12 x 1 l, 6 x 1.5 l or 12 blood bags on the swing-out rotor.

The motorized lid lock and its patented one-button control (Spincontrol S) makes the Sigma 8KS especially easy to use. The centrifuge has a low loading height, is pleasantly quiet in operation, and has low power consumption.


Floor-standing centrifuge Sigma 8KS - now with a new design