Refrigerated Centrifuge LI-HRC-20K

THE NAME AND MODEL OF THE PRODUCT:

LI-HRC-20K High Speed Refrigerated centrifuge

FEATURES AND APPLICATIONS:

LI-HRC-20KHigh Speed Refrigerated centrifuge (This machine below is short for this centrifuge machine.),The series centrifuge is widely applied in biology, chemistry, medicine, agriculture and forest science, food safety, blood station and clinical test. This machine features good rigidity, high strength and corrosion proofing, owing to its high material of steel and its surface with spurt models processing. Meanwhile, this machine possesses the advantages of succinct structure, small volume, low noise, smooth temperature rise, high efficiency, safe and reliable, and it is fit for the experimental analysis with fewer samples and more separation steps.

This machine adopts the advanced technologies like microcomputer control, direct drive brushless DC motor, TFT touch panel,mute mechatronics electronic lock and so on.

THE FEATURES OF THIS MACHINE ARE AS FOLLOWED:

The vibration-absorption effect of this machine works very well by the application of its special damper. This machine also has a self-balance function.

The special PWM-controlled speed control systemassures its high control accuracy and its fast acceleration and deceleration function, which provides different acceleration and deceleration time to be freely chosen. To meet the requirement of labs, the brushless DC motoralso assures the operation of the machine in a quiet working state. The carbon brush doesn’t need to be replaced, so there are no carbon pollutions.

This machine has a parameter-saving function, and it can calculate the RCF value automatically.

There are many rotors with different levels. The tube frame can be replaced, and there are many tubes, convenient to choose.

This machine has a protective function owing to its electronic lock. When its faceplate is uncovered, the centrifuge machine cannot be operated.

This machine can be safely operated in the environment with the temperature within 5 to 40 centigrade, under RH<80%, and without conducting dust, explosive gas and corrosive gas.

THE OPERATION PRINCIPLES:

The centrifuge machine helps to separate, condense or purify the different density components (or particles) of the solutions by the usage of centrifugal sedimentation principal.

After placing the centrifuge tubes with equivalent test solutions in the test tubes around the rotors symmetrically and starting the machine, the RCF produced in the high-speed rotary of the rotors, which are driven by the motor, separates the different density components (or particles) in the test solutions. The value of RCF depends on the rotating radius “r” (the horizontal distance from the position of the test solutions to the axle center) and the rotating speed “n”, and here is the calculation formula.

RCF=1.118×10-6n2r×g

n------------ The rotating speed (r/min)

r------------The rotating radius (mm)

The time (Ts) needed during the separation and deposition of the mixed solutions is calculated by this formula:

 

 

Type: Rmax------The rotating radius of the test solutions having the farthest distance with the axle center

Rmin------The rotating radius of the test solutions having the nearest distance with the axle center

ρ------The density of the mixed solutions (g/cm3)

μ------ The viscosity of the mixed solutions (p)

n ------ The rotating speed (r/min)

r------The particle’s radius (cm)

б------The particle’s density (g/cm3)

TECHNICAL PARAMETERS:

Maximum rotate speed:20000r/min
Maximum centrifugal force:27700×g
Equivalent Speed capacity :12×1.5/2.0ml
Time range:0~99h59min
Rotate speed precision : ±50r/ min
Temperature :-15deg C to 40deg C @ ambient 15deg C
Refrigeration system : Imported compressor CFC free
Noise : ≤ 65dB
Power : 220V 50HZ
Dimension(L×W×H) :710×630×350mm
Weight :75kg

THE ROTOR PARAMETER:

Model Product name Maximum capacity Maximum rotate speed (r/min)  Maximum centrifugal force(×g)
LI-HRC-20K High Speed Refrigerated centrifuge - 20000 27700
No.1 Angle rotor 12×1.5/2.0ml 20000 27700
No.2 Angle rotor 10×5ml 16000 17700
No.3 Angle rotor 24×1.5/2.0ml 14000 18180
No.4 Angle rotor 6×50ml Reducer for 15ml 12000 13800
No.5 Swing out Rotor 4x10ml/12x10ml 6000/4000 3200/2330
No.6 Swing Plate Rotor 2x2x48hole 3000 1400