Everyone has their own opinions on this issue. Here are just some suggestions for your reference. No matter how the salesperson shows off novel technologies in front of you, you must pay attention to the fans and filters used in this clean bench. These two things represent the technical level of the product and cannot be counterfeited. Unfortunately, the domestic level of fans and high-efficiency air filters is much lower than that of foreign products, so domestically produced high-end products generally use imported filters and fans.
Many people will tell you that we are using a high-efficiency air filter. This is an interesting word game, because countries have different definitions and standards for high-efficiency air filters, and even test methods are quite different, so it is best not to put high-efficiency air. The concept of filter is equivalent to the true filtering efficiency of the filter. The supplier may be required to provide data on the filtration efficiency of a filter with a filtration efficiency greater than that of microparticles. The smaller the particles, the higher the filtration efficiency, and the better the performance of the filter. It is worth noting that the test method commonly used in the world is photon counting. France, and the domestic common test method is the sodium flame method.
Please pay attention to the grade of the products you need. The general sub-categories of the ultra-clean benches in the domestic market are:
Economic type: The use of national standard high-efficiency air filter, the index is lower than the international standard, the appearance is also not good; the fan is generally used domestic common fan, just started to work better performance, long time performance can not be guaranteed; in order to reduce costs, Many do not use outside the air filter; control system is simple, poor appearance.
Ordinary type: all imported or multi-use foreign materials and foreign technologies in the domestic production of air filters, performance close to imported products; fans using mid-range products, but also useful fans, more reliable, but most are not special for the clean bench Need to be designed, so the prolonged use of uneven stroke is its characteristics; comprehensive performance is better, but the control system is relatively simple, glass doors are generally manual.
High-grade: all imported high-end products or original filters; fans use imported fans designed according to the characteristics of clean bench use; the main performance is higher than the ordinary type; the control system is optimized for the user: glass door Most of them are driven by electric motors. There are sensors inside the box that can reflect the working conditions of the filters to improve the product's reliability. A few products use embedded control systems.
Do not simply focus on the quotes of the clean platform
Quotation is an important factor when choosing a clean bench. However, if you consider that the clean bench is a long-term equipment, the maintenance and maintenance costs are also high. Therefore, the life-cycle cost of the product should be taken into consideration. Here, the clean bench has a prominent feature. Its air filter is a depleting product. During use, dust on the filter surface will accumulate, leading to increased wind resistance. Finally, the filter will be scrapped and the system will fail. Once such a phenomenon occurs, high-end products will immediately warn you, but you cannot be sure whether the same problems occur in medium and low-end products. Do you know what money is being spent on what to buy? It is bothersome and expensive to replace filters. Therefore, most mid- to high-end products use pre-filters to extend the service life of filters. Most low-end products are only symbolic pieces of cloth.
Pay attention to the cleaning and disinfection of clean benches
The clean bench is a special kind of worktable. Imported products will use a lot of space to tell you how to clean and disinfect. Better clean benches will have many accessories, most of which are related to cleaning and disinfection. The optional clean bench should at least be equipped with a UV lamp for disinfection. You may wish to ask the supplier what they have done for the customer's cleaning and disinfection. If they find that a certain product is not suitable for cleaning, they need not consider it. It may have good performance and low price, but it will be very inconvenient to use for a long time.
Optical design of clean bench
Maybe you think it's very simple, very bright, and the inside is clear. If you are a purchasing person, you often see for a few seconds, and the operator may have to concentrate on the sample for hours in such a light. If the light source design is not reasonable, then they will soon tired. Therefore, you should pay attention to: The light in the box should not be too bright. If the experimenter needs strong light, several fluorescent tubes are not enough. They will prepare the light source themselves; the fluorescent lights should not directly shine on the eyes of the operator. You can operate like People sit in front of the work bench and see how they can see the fluorescent lamps clearly. Many suppliers like to make stainless steel work surfaces and inner chambers bright as a mirror to advertise the cleanliness of their products, but this may just make The light is directly reflected in the operator's eyes, which is unfavorable for use, so the shadow of the fluorescent lamp should not be clearly visible on the work surface when you are in the operator's position.
Zhejiang Sujing Purification Equipment Co., Ltd. is located in Daoshui Town, Shangyu District, Shaoxing City, Zhejiang Province, and is a leading manufacturer of purification equipment in East China. Can provide professional air purification systems for industries such as microelectronics, biomedicine, hospital operating rooms, fiber optic cables, food and beverages, precision instruments, semiconductors, and new material applications in accordance with ISO14644-1, GB50073-2001 national standards, and national GMP regulations. Engineering design, construction, testing and technical services.
The company's main purification table series, air shower series, fume hood series, biological safety cabinet series are widely used in medical and health, electronics, pharmaceuticals, biology, food, agriculture, forestry, animal husbandry and veterinary, inspection and quarantine, aerospace, automotive manufacturing, Precision instruments, universities and research institutes enjoy a high reputation in the domestic and Southeast Asian markets.
Zhejiang Sujing Purifying Equipment Co., Ltd. is dedicated to serving consumers and distributors all over the world. We will provide you with the best quality products, the most humane services, and the lowest price. We sincerely welcome you to join us!
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