Huayu Automation - Manufacture Centrifuge Tube Screen Printing Machines for Medical Medicine
What is centrifuge tube?
Named as centrifuge tube, or centrifugal tube.
Tubular sample containers can be sealed or capped.
Mechanical engineering; laboratory instruments and devices; laboratory centrifuges-laboratory centrifuge parts and accessories; medical medicine instruments and devices.
Kinds:
According to size:
1, Large volume centrifuge tube (500mL, 250mL)
2, Ordinary centrifuge tube (50mL, 15mL)
3, Microcentrifuge tubes (2mL, 1.5mL, 0.65mL, 0.2mL)
According to bottom shape:
1, Taper centrifuge tube with tapered bottom, is the most used type of centrifuge tube
2, Flat bottom centrifuge tube
3, Round bottom centrifuge tube
According to the lid closing method:
1, Capped centrifuge tube, centrifuge tubes sealed by pressing, commonly found in microcentrifuge tubes
2, Screw cap centrifuge tube, can be divided into flat cap (the top of the cap is flat) and plug cap (the top of the cap has a plug shape)
According to the material:
1, Plastic centrifuge tube
The advantages of plastic centrifuge tubes are transparent or translucent, its hardness is small, and the sample can be taken out by puncture method. Disadvantages are easy to deform, poor corrosion resistance to organic solvents, and short service life.
Plastic centrifuge tubes have a tube cover, its role is to prevent sample leakage, especially when used for radioactive or highly corrosive samples, it is very important to prevent sample leakage; the tube cover also has a role to prevent sample evaporation And support the centrifuge tube to prevent the centrifuge tube from deforming. When selecting this point, pay attention to check whether the tube cover is tight and whether it is tight during the test, so that the liquid can be leaked upside down;
Commonly used materials are polyethylene (PE), polycarbonate (PC), polypropylene (PP), etc., among which polypropylene PP tube performance will be relatively good, so users consider polypropylene as much as possible when selecting plastic centrifuge tubes.
Plastic centrifuge tubes are generally disposable experimental instruments and are not recommended for repeated use. In order to save money, PP centrifuge tubes can be reused as needed, but need to be thoroughly sterilized at high temperature and pressure to ensure the scientific results of the experiment. The centrifuge tube made of PE cannot be sterilized by high temperature and high pressure.
2, Glass centrifuge tube
When using glass tubes, the centrifugal force should not be too large. Rubber pads are required to prevent the tubes from breaking. High-speed centrifuges generally do not use glass tubes. The closure of the centrifuge tube cover is not good enough, the liquid cannot be filled up (for high-speed centrifuges and angle rotors are used) to prevent overflow and loss of balance. The consequence of overflow is to pollute the rotor and the centrifugal cavity, affecting the normal operation of the sensor. During ultracentrifugation, the liquid must be filled with the centrifuge tube, because ultra separation requires high vacuum, and the deformation of the centrifuge tube can only be avoided if it is filled up.
All above centrifuge tubes printing solutions can be provided by Huayu Automation.
Huayu Automation Screen Printing Machines for printing on centrifuge tubes, syringes/injectors, squeezable tubes, lipstick tubes, mascara tubes, eyeliner tubes used in Medical, Chemical, Cosmetics...
http://www.oncemachinery.com/ONCE-Tubes-Screen-Printing-Machine/
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