Delivery Window

Functions and characteristics of clean transfer windows

1. Preventing cross contamination:

-By using a double layered door design (interlocking function), it is ensured that both sides of the door cannot be opened simultaneously, avoiding direct contact between the air in the clean and non clean areas.

2. Maintain cleanliness:

-Some transfer windows are equipped with built-in HEPA or ULPA filters to purify the air inside the transfer window and ensure the cleanliness of the items being transferred.

3. UV sterilization:

-Part of the transmission windows are equipped with ultraviolet sterilization lamps to disinfect the surface of the transmitted items, further reducing the risk of contamination.

4. Material and Structure:

-The shell is usually made of stainless steel or cold-rolled steel plate, with a smooth surface, corrosion resistance, and easy cleaning.

-The interior is usually designed with stainless steel plates that have no dead corners, making it easy to clean and disinfect.

5. Automation control:

-Some transfer windows are equipped with touch screens or button control panels for easy operation.

-Some high-end models support PLC control systems, which can achieve intelligent management.

Types of clean transfer windows

1. Standard transfer window:

-The basic function is material transfer and air isolation, suitable for general clean areas.

2. Air shower type transfer window:

-Built in fan and high-efficiency filter can remove surface particles through high-speed clean airflow when transferring items.

3. Sterilization type transfer window:

-Equipped with ultraviolet sterilization lamps or ozone generators for disinfecting the transferred items.

4. Laminar flow transfer window:

-Built in laminar air supply system ensures that the interior of the transfer window always maintains positive pressure and cleanliness.

5. Intelligent transmission window:

-Equipped with sensors and control systems, it can record data such as transmission frequency and sterilization time, and support remote monitoring.

Application scenarios of clean transfer windows

1. Pharmaceutical industry:

-Used for the transfer of raw materials, semi-finished products, and finished products between workshops of different cleanliness levels.

2. Biological laboratory:

-Used for the transfer of experimental equipment, samples, and other items to avoid cross contamination.

3. Hospital operating room:

-Used for the transfer of surgical instruments, drugs, and other items to ensure a sterile environment.

4. Food processing:

-Used for the transmission of food raw materials, packaging materials, and other items to prevent contamination.

5. Electronic industry:

-Used for the transmission of precision components during the production process to avoid particle contamination.

Technical requirements for clean transfer windows

1. Cleanliness:

-The internal cleanliness is usually required to reach ISO level 5 (hundred level) or higher.

2. Wind speed:

-The wind speed of the air shower type transfer window is usually 20-25m/s to ensure effective removal of particles.

3. Filter efficiency:

-The filtration efficiency of high-efficiency particulate air (HEPA) filters is usually 99.99% (for 0.3 μ m particles).

-The filtration efficiency of Ultra High Efficiency Filters (ULPA) can reach 99.999% (for 0.12 μ m particles).

4. UV sterilization:

-The wavelength of ultraviolet lamps is usually 253.7nm, and the sterilization time can be set according to needs.

5. Interlocking function:

-Ensure that both doors cannot be opened simultaneously to avoid air convection.

Selection and installation of clean transfer windows

1. Selection points:

-Select the appropriate model based on the cleanliness requirements of the usage scenario, the size and weight of the transmitted items.

-Consider whether additional features are needed, such as air shower, UV sterilization, intelligent control, etc.

2. Installation requirements:

-The installation location should facilitate the transfer of items and avoid affecting the layout of the clean area.

-During installation, it is necessary to ensure the sealing between the transfer window and the wall to prevent air leakage.

-After installation, performance testing is required, including cleanliness, wind speed, interlock function, etc.

Maintenance and management of clean transfer windows

1. Regular cleaning:

-Regularly clean the inner and outer surfaces of the transfer window to ensure that there is no dust or stains.

2. Filter replacement:

-Regularly replace high-efficiency filters based on usage frequency and filter pressure difference.

3. Maintenance of UV lamps:

-Regularly check the intensity of ultraviolet lamps and replace faulty lamps in a timely manner.

4. Function check:

-Regularly test interlocking function, wind speed, cleanliness and other performance indicators to ensure the normal operation of the transmission window.