KeLing Purification Technology Company Limited 


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304 Stainless Steel Clean room Pass Box Electronic Interlocking Transfer Window

China KeLing Purification Technology Company certification
China KeLing Purification Technology Company certification
Customer Reviews
Keling had successfully supplied us following products on 25 Oct.2017 against PO NO.M170807; Their supplied Air Filters have been working satisfactorily since installation.We are satisfied with their products.


Since we do coopertae with them, they always offer good quality and keep the delivery on time to us, we do appreicated for their kind support !

—— Nasir

This is to certify that we bought U type air shower tunnel, Air Shower and HEPA filter, Secondary air filter ,perfilter for our project from KeLing Purification Technology Co. Ltd, 3C01 Tian Feng Commerce Square, Mid Building, No. 133, Baiyun AV, Baiyun Disctrict , Guangzhou , GuangDong, China against Contract No: 2014/4119005942 in October 22, 201

—— IATEC,Argentina

Product arrived faster than expected and they sent something special in addition to what I ordered. Nice people and fast service!

—— Mohammed Saad

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304 Stainless Steel Clean room Pass Box Electronic Interlocking Transfer Window

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Large Image :  304 Stainless Steel Clean room Pass Box Electronic Interlocking Transfer Window

Product Details:
Place of Origin: China
Brand Name: K-LING
Certification: CE
Model Number: KEL-PB600
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: negotiation
Packaging Details: Polywood packing
Delivery Time: 7-15 working days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 300 sets per month
Detailed Product Description
Material:: Stainless Steel, Cold-rolled Plate Lock:: Mechanical And Electric Interlock
Thickness: 1.0/ 1.2/ 1.5 Mm Power Supplier: 220V/50HZ
Start Port:: Guangzhou, Shenzhen Warranty:: 3 Years
High Light:

clean room pass through box


Pass Thru Box

304 Stainless Steel Electronic Interlocking Transfer Window used in cleanroom





  The pass box is an auxiliary device for the clean room. It is mainly used for the transfer of small items between two clean area or the clean area and the non-clean area, in order to reduce the number of clean room openings and to minimize the pollution. The double doors are interlinked to prevent cross-contamination effectively. They are equipped with electronic or mechanical interlocking devices and ultraviolet sterilization lamps. It is widely used in micro-technology, biological laboratory, pharmaceutical factory, hospital, food processing industry, LCD, electronic factory and other places where air purification is needed.



Classification of Pass box 

Pass boxes can be divided into three categories:


According to the switch mode of the door

1. Electronic interlocking transfer box

2. Mechanical interlocking transfer box

3.microcomputer interlocker


According to the working principle

air shower pass box

ordinary pass box 

laminar flow pass box.


Various types of pass boxes can be made according to actual needs.


Optional accessories: Interphone, bactericidal lamp and other related functional accessories.


product adventure


1.High quality stainless steel, smooth and wear-resistant

2.Double doors are circular viewing windows with large viewing angle and glass for easy observation.

3.Two side doors have mechanical interlocking device, so that both sides of the door can not be opened at the same time.

4.Equipped with ultraviolet bactericidal lamp


Transfer window design picture


304 Stainless Steel Clean room Pass Box  Electronic Interlocking Transfer Window 0

            1.control board    2.door    3.handle     4.double glass    5.UV light



Technical Parameter



Customer's design is available


Model KEL-PB500 KEL-PB600 KEL-PB750
Internal size(W*D*H)(mm) 700×500×590 800×600×690 950×750×840
External size(W*D*H)(mm) 500×500×500 600×600×600 750×750×750
Construction 1.entirety is sus 304/201
2.External is steel with power coated,internal is sus 304
3.External is steel with power coated,internal is sus 201
Thickness 1.0/ 1.2/ 1.5mm    
Toughened Glass Window 350×350×8mm 395×395×8mm 480×480×8mm
Interlock Mechanical or Electronic Interlock
Power supplier 220V/50HZ



Company pictures



304 Stainless Steel Clean room Pass Box  Electronic Interlocking Transfer Window 1




Contact Details
KeLing Purification Technology Company

Contact Person: Carol Li

Tel: +8613980227182

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