Refrigerated centrifuges

Sigma refrigerated centrifuges combine high RCF performance with precise temperature control, making them essential for sensitive biological, pharmaceutical and clinical workflows. They preserve sample integrity, support reproducibility and offer the flexibility required in modern research, QC and diagnostic laboratories.

Applications – extended use cases
• Biotechnology & molecular biology – protein purification, DNA/RNA extraction, virus prep, cell fractionation under controlled temperatures.
• Pharmaceutical R&D and QC – API development, formulation testing, stability assays and GMP-compliant workflows.
• Hospitals & blood banks – temperature-controlled separation of whole blood, plasma, platelets and diagnostic samples.
• Life science research – exosome isolation, organelle pelleting, sample clarification.
• Food & cosmetics – stability testing, emulsion separation, controlled-temperature QC steps.

Refrigerated centrifuges – available models:
Sigma 1-14K, Sigma 1-16K, Sigma 2-16KL, Sigma 2-16KHL, Sigma 3-16KL, Sigma 3-18KS, Sigma 3-18KHS, Sigma 3-30KS, Sigma 3-30KHS, Sigma 4-5KL, Sigma 4-16KS, Sigma 4-16KHS, Sigma 6-16KS, Sigma 6-16KHS, Sigma 8KS, Sigma 8KBS, Sigma 3-16T, Sigma 3-17KT

Sigma centrifuges
Fixed-angle rotor:
Volume: 24 x 2 ml to 6000 ml
Speed: 13,500 rpm to 30,000 rpm
RCF: 16,602 x g to 70,121 x g

Swing-out rotor:
Volume: 400 ml to 12000 ml
Speed: 4,100 rpm to 16,000 rpm
RCF: 5,394 x g to 20,035 x g

Product Options:
Inert gas port
Water cooling
GMP water-cooling models
RS 232 for barcode scanner
DataSuite documentation
IVD models
Biosafe rotors
Clinic & cell culture packages