First, the principle and structure: 
 Transfer window (PASS BOX) is placed in the clean room partition wall of the device, its function is as a clean room to pass the buffer zone outside the item, which prevents the transfer articles to open the door upset the clean room air and chamber pressure, but also reduce the time workers walk outside the area to prevent dust from entering. Pass Box and therefore can not be both the import and export should be open interlock control, to prevent cross-contamination. 
 Second, characteristics: 
 1. Full use of PP material, smooth and clean wear. 
 2. On both sides of the door has a mechanical interlock or electronic interlock devices to ensure both sides of the door can not be turned on. 
 3. May be based on customer needs, customized non-standard size and floor transfer window. 
 4. Remarks: 
 Introduction --- PP PP material is a semi-crystalline materials. To be more rigid than PE and has a higher melting point. As a high degree of crystallinity, the surface of the material properties of stiffness and good resistance to scratches. PP environmental stress cracking problem does not exist. Has excellent resistance to moisture absorption, anti-acid corrosion, anti-solubility. 

 Production process (outside of the PP plate protective film, can tear) 
 Third, the classification: 
 Transfer window can be divided into: the standard transfer window with the air shower-type transfer window. 
 Fourth, technical parameters: 
 1. The whole transfer window using PP material 
 2. Overall dimensions: 700 L * 400 W * 500 high 
 The type size: 550 W * 400 D * 400 high 
 3. UV lamp equipped 
 Fifth, install and use: 
 1.'s Transfer window for new installations, the use of the work area should be cleaned before treatment. 
 2. When items need to be shipped into the clean room, opened the door into the transfer window, close the door, second door can be opened; items removed from the transfer window, the second door closed. Conversely, when you need to leave the clean room, they just opened the door into the transfer window, close the door, outside door can be opened, items removed from the transfer window, close the second door. 
 3. Transfer window placed on the two doors closed, there is UV light transmission window, the first plug in the power plug. After use, turn off the power switch. 

 PP transfer window Appearance 

 Shanghai source extension can undertake all types of transfer window production. If demand can inquire.