Sigma 3-18KS

The Sigma 3‑18KS is the perfect choice for everyone who sets very high requirements for refrigerated benchtop centrifuges and is looking for a broad range of operating options. The centrifuge enables RCF values of more than 30,000 x g and is very convenient in use thanks to the patented Spincontrol S one-knob control and automatic lid lock. Combined with the extensive range of rotors and accessories, this all-purpose centrifuge sets standards for versatility and performance.

What makes the Sigma 3‑18KS all-purpose centrifuge so attractive
The Sigma 3‑18KS 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 3‑18KS 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.

Swing-out rotor

max. speed14,000 rpm
max. RCF16,215 x g

Fixed-angle rotor

max. volume4 x 400 ml
max. speed18,000 rpm
max. RCF30,070 x g


Product options

  • IVD
  • Inert gas port
  • Biosafe swing-out and fixed-angle rotors
  • Cell culture packages

User

  • Hospitals
  • Veterinary clinics
  • Food labs
  • Universities & colleges
  • Pharmaceutical labs
  • Cell culture labs
  • Environmental labs

Centrifuge table

For Sigma 3-16KL, 3-18KS, 4-16KS

17926
B x H x T [mm]: 650 x 501 x 647

Sigma centrifuge tables are available in six different sizes. Matched to the corresponding centrifuge dimensions, they combine convenient work height with an optimally calculated footprint. The tables are made from coated sheet steel and are equipped with a storage compartment (with two doors) and a convenient pull-out shelf. Lockable castors allow the centrifuge tables to be easily moved and positioned in the laboratory.

Rotors

Swing-out rotor 11180 +
Bucket 13190

4 x 400 ml
4,500 rpm
3,894 x g

Swing-out rotor 11133 +
Bucket 13104

4 x 200 ml
5,500 rpm
5,242 x g

Swing-out rotor 11135 +
Bucket 13124

2 x 66 mm
4,500 rpm
3,011 x g

Swing-out rotor 11222 +
Bucket 13222

2 x 56 mm
3,000 rpm
1,218 x g

Swing-out rotor 11241 +
Bucket 13241

2 x 66 mm
4,700 rpm
3,285 x g

Fixed-angle rotor 12115

96 x 0,2 ml
16,400 rpm
29,468 x g

Fixed-angle rotor 12154

24 x 2 ml
18,000 rpm
29,703 x g

Fixed-angle rotor 12131

30 x 2 ml
16,400 rpm
30,070 x g

Fixed-angle rotor 12349

48 x 2 ml
15,000 rpm
25,155 x g

Fixed-angle rotor 12182

12 x 5 ml
17,500 rpm
28,761 x g

Fixed-angle rotor 12111

10 x 10 ml
18,000 rpm
27,530 x g

Fixed-angle rotor 12157

20 x 10 ml
10,000 rpm
10,956 x g

Fixed-angle rotor 12311

12 x 15 ml
13,500 rpm
20,172 x g

Fixed-angle rotor 12158

6 x 30 ml
18,000 rpm
28,616 x g

Fixed-angle rotor 12150

6 x 50 ml
14,600 rpm
20,018 x g

Fixed-angle rotor 12310

6 x 50 ml
14,500 rpm
22,096 x g

Fixed-angle rotor 12156

8 x 50 ml
13,800 rpm
20,440 x g

Fixed-angle rotor 12155

4 x 94 ml
14,500 rpm
21,390 x g

Fixed-angle rotor 12159

6 x 94 ml
11,400 rpm
14,239 x g
 max. volume max. speed max. RCF

Technical specifications

Max. capacity [ml] 
swing-out rotor4 x 400
fixed-angle rotor6 x 94
Max. RCF30.070
Max. speed [rpm]18.000
Min. speed [rpm]100
Noise level at maximum speed (approximate) [dB(A)]
Max. acceleration time [s]
Max. braking time [s]
fixed-angle rotor 12154≤ 55
swing-out rotor 11180
with bucket 13190
≤ 60
fixed-angle rotor 12154≤ 29
swing-out rotor 11180
with bucket 13190
≤ 18
fixed-angle rotor 12154≤ 47
swing-out rotor 11180
with bucket 13190
≤ 21
Temperature setting range [°C]-20 – +40
Power consumption [W]1.010
Height x Width x Depth [mm]355 x 630 x 600
Height with open lid [mm]785
Weight without rotor [kg]78
RefrigerantR513a
Charge [kg] / Pressure [bar]0,405 / 23
CO2 equivalent [t]0,256
Contains fluorinated greenhouse gases in a hermetically sealed refrigeration system. (EU) 2024/2729; 2028-DEC-31.