Centrifugation Application Notes
Table 5. High-Performance Rotors and Corresponding k -Factors.
Max RCF ( g -force)
Rotor Places x Volume (mL)
k -Factor with Largest Volume Tube at Max Speed
Rotor
Max Speed (rpm)
Fixed-Angle Rotors
JA-30.50 Ti
30,000
108,860
8x50
280
JA-25.50
25,000
75,600
8x50
418
Outer Row: 74,200 Inner Row: 60,200
Outer Row: 265 Inner Row: 380
JA-25.15
25,000
24x15
JA-21
21,000
50,400
18x10
470
Outer Row: 51,500 Inner Row: 43,900
Outer Row: 371 Inner Row: 465
JA-20.1
20,000
32x15
JA-20
20,000
48,400
8x50
769
JA-18.1
18,000
42,100
24x1.8
156
JA-18
18,000
47,900
10x100
566
JA-17
17,000
39,800
14x50
690
J-LITE JLA-16.250
16,000
38,400
6x250
1,090
JA-14.50
14,000
35,000
16x50
787
JA-14
14,000
30,100
6x250
1,764
JA-12
12,000
23,200
12x50
1,244
J-LITE JLA-10.500
10,000
18,600
6x500
2,850
JA-10
10,000
17,700
6x500
3,610
J-LITE JLA-9.1000
9,000
16,800
4x1,000
2,544
J-LITE JLA-8.1000
8,000
15,970
6x1,000
2,482
Swinging Bucket Rotors JS-24.15
24,000
110,500
6x15
376
JS-24.38
24,000
103,900
6x38.5
334
JS-13.1
13,000
26,500
6x50
1,841
JS-7.5
7,500
10,400
4x250
5,287
JS-5.9
5,900
6,570
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Conical Bottles: 6,870 Deep-Well Plates: 6,130
Conical Bottles: 7,728 Deep-Well Plates: 1,536
JS-5.3
5,300
4x500
JS-5.0
5,000
7,480
4x2,250
9,171
JS-4.3
4,300
4,220
4x750
11,800
JS-4.2
4,200
5,020
6x1,000
11,500
JS-4.0
4,000
4,050
4x1,000
15,300
Please see rotor manuals for a complete listing of available tube sizes and for any additional information. For additional rotor calculation information, visit www.beckmancoulter.com
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