Shanghai high speed precision centrifuge centrifuge | purchase requirements analysis

About Shanghai centrifuge the other information please visit http://www.shlxj.com.cn/ for more details.
(1): Shanghai speed centrifuge to understand centrifuge according to the maximum speed is not the same as divided into low speed centrifuge (<1 0000 RPM / min), high speed centrifuge (10000 RPM / min 30000 RPM / min), ultra high speed centrifuge (>30000 RPM / min), each centrifuge has a maximum speed of extra, maximum speed refers to under no load speed, but the maximum speed according to different rotor varieties, the quality of samples size and have difference. For example: the extra speed a centrifuge is 16000 RPM / min, that when the rotor no-load spins at 16000 revolutions per minute, plus a sample in the future, the speed will certainly be less than 16000 RPM / min. The rotor is not the same, the maximum speed is not the same (an imported centrifuge optional multiple rotor), the degree of the rotor can be arrived at 15000 RPM / min, but the angle rotor can probably arrived in 14000 RPM / min, the relevant staff skills in Shanghai's centrifuge concrete suggestions to seek differences detailed product sales staff and production plant, and so on speed selection to be careful, the maximum speed selected must be higher than the objective speed centrifuge. Such as: objective speed is 16000 RPM "mIn, the maximum speed centrifuge must choose higher than 16000 RPM / min.
(2) temperature: Shanghai centrifuge understood some samples (such as protein, cells) can damage under high temperature environment, it must choose freeze centrifugal degree condition, forms a right angle with the shaft, the sample will be deposited on the bottom of the centrifugal tube: angle rotor: centrifugal vessel and shaft into a fixed point of view, the sample will be side wall deposition is concentrated at the bottom of the centrifuge tube and close to the bottom of the. Shanghai centrifuge the assumption that the expected respectively of the samples on the bottom of the centrifuge tube was selected degree of rotor, the assumption that the expected sample on the bottom of the centrifugal tube and close to the bottom of the side wall is to choose the angle of rotor.
Brushless motor, the former screening, now the centrifuge mostly brushless motors, some motor with brake function. Refrigerated centrifuge is also different in refrigeration, now environmental protection skills is of course the fluorine free refrigeration. In addition to consider the noise question, centrifuge try to select low noise, so can stand to the test environment friendly. Shanghai centrifuge suggestions in the accessories should also be stable, some test should be used from the machine in particular, refrigerated centrifuge has the additional temperature scale. Refrigeration system heat and centrifuge occurred in time of high speed working equilibrium in a certain temperature (frozen centrifugation of the sample need to persist in the 3\ "C a 8 DEG C), specific can arrive a few and rotor related, such as additional temperature scale of a centrifuge is -10. C ~ 60~C, mounted on the rotor rotation degree in time can reach 3\ "C mercy, Shanghai centrifuge hypothesis is angle rotor may only to 7 DEG C mercy. This also need to consult the detailed product sales staff and related personnel skills spend factory.
(3) capacity: Shanghai centrifuge advice every time need centrifugal several sample tube total capacity of 7 each sample tube need some capacity of 7 of these elements to choose a centrifuge, simple total capacity for the centrifuge = each centrifuge tube capacity * centrifugal tube number, the total capacity and workload size is matched.
(4): Shanghai centrifuge rotor rotor first understand Tiantai centrifuge for two, degree of rotor: work hanging blue in the state level, and is perpendicular to the shaft, the sample will be deposited on the bottom of the centrifugal tube: angle rotor centrifugal vessel and shaft into a fixed point of view, the sample will be focused on centrifugal sidewall deposition pipe at the bottom and near the bottom. The assumption that the expected respectively of the samples on the bottom of the centrifuge tube was selected degree of rotor, the assumption that the expected sample on the bottom of the centrifugal tube and close to the bottom of the side wall is to choose the angle of rotor. Shanghai centrifuge to understand there are some special test or special samples need special rotor such as: large capacity basket (used for blood transfusion), enzyme labeled plate rotor, slide the rotor, PCR rotor, rotor and capillary tube rack rotor etc.. The rotor has a fixed standard, it is isolated and centrifuge capacity, such as angle rotor 36 x 5 ml, both the choice of type of rotor is also a choice of centrifuge capacity, so the rotor selection is very important.
(5) control system: Shanghai centrifuge know advanced centrifuge adopts microcomputer control system, the control system can not only ensure the safety work can take the initiative to end the centrifuge tasks. Now many centrifuges have good human control system. For example: rotor identification function, safety lock function, prompting function defects, acceleration and deceleration curves and so on.

In addition to the above points should pay attention to some details and necessary accessories. The first part is the centrifuge motor, the motor is divided into carbon brush motor and brushless motors, the former screening, now the centrifuge mostly brushless motors, some motor with brake function. Refrigerated centrifuge is also different in refrigeration, now environmental protection skills is of course the fluorine free refrigeration. Shanghai centrifuge advice besides also consider noise question, centrifuge try to pick a low noise, so can stand to the test environment friendly. In the accessories should also be stable, some test should be used from the machine in particular, refrigerated centrifuge has the additional temperature scale. Refrigeration system heat and centrifuge centrifuge centrifuge which occurred in Shanghai know when high-speed work equilibrium in a certain temperature (frozen centrifugation of the sample need to persist in the 3\ "C a 8 DEG C), specific can arrive a few and rotor related, such as additional temperature scale of a centrifuge is -10. C ~ 60~C, mounted on the rotor rotation degree in time can reach 3\ "C mercy, Shanghai centrifuge hypothesis is angle rotor may only to 7 DEG C mercy. This also need to consult the relevant staff skills and detailed product sales staff and making factory.