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Description
Rotor Function and Specifications
FX121.5P Rotor Specifications
Specification
Maximum speed
Density rating at maximum speed
Critical speed range
Relative Centrifugal Field
Conditions requiring speed reductions
Maximum imbalance of opposing loads
Number of tube cavities
Nominal tube capacity (largest tube)
Nominal rotor capacity
Approximate acceleration time to maximum speed (fully loaded)
Approximate deceleration time from maximum speed (fully loaded)
Weight of fully loaded rotor
Rotor material
Lid material
a. The critical speed range is the range of speeds over which the rotor shifts so as to rotate about its center of
mass. Passing through the critical speed range is characterized by some vibration.
Relative Centrifugal Field (RCF) is the ratio of the centrifugal acceleration at a specified radius and speed (rω
b.
to the standard acceleration of gravity (g) according to the following formula: RCF = rω
radius in millimeters, ω is the angular velocity in radians per second (2 π RPM /60), and g is the standard
acceleration of gravity (9807 mm/s
2-10
Axis of Rotation
a
b
at maximum speed at r
). After substitution: RCF = 1.12r (RPM/1000) 2
2
45°
r min
(29 mm)
r
max
(62 mm)
Description
14,800 rpm
1.2 g/mL
600 to 900 rpm
15 183 × g
(62 mm)
max
Run Speeds
see
2 grams
12
2.2 mL
12 × 1.5/2.2 mL (18/26.4 mL)
13 seconds
11 seconds
307 g (0.68 lb)
polypropylene
polysulfone
(page 3-12)
2
)
2
)/g
where r is the
—
PN A49436AG
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