When purchasing a hand dryer, you should also pay attention to the type of motor used by the hand dryer. There are many types of motors used in hand dryers, including capacitor asynchronous motors, shaded-pole motors, series-excited motors, DC motors, and permanent magnet motors. Hand dryers driven by capacitor asynchronous motors, shaded-pole motors, and DC motors have the advantages of low noise, but the disadvantages are slow drying and high power consumption, while hand dryers driven by series excitation motors and permanent magnet motors have the advantages of large air volume and dryness. The advantages of fast hands and low power consumption. Now the latest permanent magnet brushless DC motor combines the above characteristics, with low noise and large air volume, and has become the best choice for hand dryers.

1. Now the hand dryers with fast drying speed, environmental protection and energy saving are wind-based and heating-assisted hand dryers. The characteristic of this hand dryer is that the wind speed is high, and the water on the hands is quickly blown away, and the heating function is only to maintain the comfort of the hands. Usually, the wind temperature is between 35-40 degrees. It dries hands quickly without burning.

Second, the main parameters of the hand dryer:

1. Shell and shell material not only determine the appearance of the hand dryer, but unqualified materials may become a fire hazard. Better hand dryer shells usually use ABS flame retardant plastic, metal spray paint, and engineering plastics.

2. Weight, mainly to consider whether the installation location and material have enough capacity to bear the weight of the hand dryer. For example, cement brick walls generally do not need to consider the weight problem, as long as the installation method is suitable, this is not a problem, but if it is a color Materials such as steel plates need to consider the load-bearing capacity, but some manufacturers of hand dryers provide brackets to solve such problems.

3. Color, color is mainly a matter of personal preference and the matching of the overall environment, and food factories, pharmaceutical factories, etc. should try to choose hand dryers with the original color, because the spray paint hand dryers may volatilize, which will affect food or medicine. safety

4. The starting method is usually manual and infrared induction. Now the new starting method is photoelectric type, which is characterized by fast starting speed and is not easily affected by the environment. For example, strong light may cause the infrared hand dryer to keep rotating or start by itself. , the photoelectric is activated by blocking the amount of incoming light, thereby preventing the problem of infrared hand dryers, and also does not touch the hand dryer with hands, thereby preventing cross infection

5. Induction position, you can choose according to your needs

6. Working method, hanging on the wall or on the bracket, choose according to your own needs, it is recommended to use the bracket type when you move frequently

7. Working noise, usually the smaller the better

8. Hand drying time, the shorter the better

9. Standby current, the more adjusted the better

10. The air temperature depends on your own needs and the type of hand dryer you choose. Usually, it is advisable to choose one that does not burn for a long time.

3. Procurement suggestion:

When buying a hand dryer, don’t just look at the price of the hand dryer itself. Although some hand dryers are very cheap, they use electricity like a tiger, and it is difficult to control the power consumption. Therefore, try to buy products with low energy consumption. Low energy consumption is characterized by short drying time and relatively low power. You can calculate it alone, energy consumption = power * time. Also try to see the actual product by yourself, and then buy it after trying it out. Now many small hand dryer manufacturers use hand dryers made of inferior materials. After continuous use for a long time, the shell is deformed and there is a serious fire hazard.