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The Sigma 3‑18KHS makes work processes in laboratory operation more efficient, safer and more convenient. The benchtop centrifuge has an extraordinary capacity with a maximum of 4 x 400 ml. The Sigma 3‑18KHS is nicely complemented by a large selection of fixed-angle and swing-out rotors, buckets and adapters, including many biosafe configurations. Particularly thanks to the ability to use fixed-angle rotors with high RCF, the centrifuge covers a distinctly broader spectrum of applications compared to competitive units.

The Sigma 3‑18KHS is also available as the Sigma 3‑18KSrefrigerated centrifuge.

Sigma centrifuges are high performance, reliable and safe. Whether you are looking for a compact microlitre centrifuge, a high-performance benchtop centrifuge or a large-capacity self-standing centrifuge – refrigerated, unrefrigerated, heated, or especially quiet and energy efficient – we have the right solution for every specific customer requirement.

Product options such as IVD, inert gas port and water cooling are also part of our product portfolio. Special models tailored to individual requirements are possible. Please contact us.

Technical Specifications

Speed (rpm) 100-18,000 rpm
RCF (x g) 30,070 x g
Temperature (C) -20 to + 60 Degree C
Timer (s; h:min) 10 sec – 99 h 59 min
Max. capacity [ml] swing-out rotor 4 x 400 ml
fixed-angle rotor 6 x 94 ml

Key Features

  • Heatable refrigerated centrifuge
  • High speed centrifuge
  • Universal benchtop centrifuge
  • Window in lid for external speed monitoring
  • The patented one-knob Spincontrol S User-friendly can even be altered during operation
  • Zero-maintenance induction motor
  • 60 programs
  • Inert gas version available
  • Biopharmaceutical and Biotechnology
  • Pharmaceutical
Sigma Laborzentrifugen GmbHSigma Laboratory Centrifuges is a worldwide leading manufacturer of laboratory centrifuges.

Centrifuges are standard equipment in every laboratory and are used intensively to separating components with different densities from liquids, for which they are virtually indispensable. Sigma offers a broad spectrum of laboratory centrifuges, fixed-angle and swing-out rotors and accessories. All of our products meet high standards of reliability and safety. The application areas include pharmaceutical research, biotechnology, medical analytics, environmental analytics, petroleum analyses and many other areas.

Martin Christ Sr started producing centrifuges in 1948. In 1975 he founded the company Sigma Laborzentrifugen. Sigma gained worldwide recognition with a new maintenance-free drive system for laboratory centrifuges, and the company grew rapidly. The company culture of the family-owned business is based on flat organisational structures with short communication paths, sustainable business operations, and close networking with international representatives and dealers.
[Sigma, Centrifuge, Refrigerator centrifuge, Heatable centrifuge]