Nitrogen cabinets are often used to store materials that are easily oxidized when exposed to the air, such as wafers in the semiconductor and optoelectronic industries, humidity-sensitive components such as BGA chips in the packaging industry, or solar cells in the solar industry. They are also suitable for storing some precious metals, etc. product. High purity nitrogen is used to fill the interior of the nitrogen cabinet, replacing the original air to protect the stored materials.
The encapsulation process needs to be performed in a clean room environment, so our nitrogen cabinet also needs to reach the level of thousand cleanliness. It is recommended to use SUS304 double mirror material stainless steel, and use sealant to seal the gap without the dust. The intelligent saving type nitrogen cabinet control system uses SMC solenoid valve, which has a long life without noise. It is flexible to cut off and open the nitrogen, and is not affected by the radiation of peripheral equipment. The multi-point gas supply system is adopted, and the stainless steel shelves are densely covered with ventilation holes to ensure air circulation and the nitrogen is evenly distributed in the nitrogen cabinet. In cooperation with the high-end crystal flow meter, it prevents the gas from overshooting and dispersing the smaller volume materials. According to different material standards, you can choose relative humidity or oxygen content to control the output and cutoff of nitrogen. For highly oxidizing materials, a nitrogen cabinet door can be opened to force the nitrogen supply immediately to ensure material safety. A more optional software recording system can be installed to save manpower to check the temperature and humidity recorded values, which is convenient for real-time viewing of the temperature and humidity environment values of material storage.
The size of the nitrogen cabinet is selected according to the amount of stored materials. The table below shows the parameters of the standard model nitrogen cabinet of Sanqing Instrument. It is recommended to choose a stainless steel clean nitrogen cabinet with a capacity of more than 1000 liters, which is cost-effective.
|Product volume||Inner diameter size (MM)||Overall dimensions (MM)||Number of shelves||Door opening method|
|98 liters||W446 * D372 * H598||W448 * D400 * H688||1||Single door|
|160 liters||W446 * D422 * H848||W448 * D450 * H1010||3||Single door|
|240 liters||W596 * D372 * H1148||W598 * D400 * H1310||3||Double doors up and down|
|320 liters||W898 * D422 * H848||W900 * D450 * H1010||3||Left and right double doors|
|435 liters||W898 * D572 * H848||W900 * D600 * H1010||3||Left and right double doors|
|540 liters||W596 * D682 * H1298||W598 * D710 * H1465||3||Double doors up and down|
|718 liters||W596 * D682 * H1723||W598 * D710 * H1910||5||Three doors open|
|870 liters||W898 * D572 * H1698||W900 * D600 * H1890||5||Four doors|
|1436 liters||W1198 * D682 * H1723||W1200 * D710 * H1910||5||Four-door / Six-door|
|Humidity range||1%-60% RH adjustable||Display accuracy||Temperature: ± 1 ° C Humidity: ± 3% RH|
|Intake pressure||0.2-0.4 MPa||Nitrogen saving module||Multi-point gas supply system, SMC nitrogen saving module|