Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
Classification of Explosion-Proof Certification -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
Blast-proof certification is the process of verifying that equipment meets the requirements of explosion-proof standards, type testing, and routine tests, and issuing the corresponding qualification certificates. Certificates can be issued for Ex equipment or Ex components.
Different regions have varying certification standards and systems for explosion-proof electrical products. Currently, international explosion-proof certifications include domestic explosion-proof certification, ATEX certification, IECEx certification, and North American explosion-proof certification.

Explosion-proof Certification Categories -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
Electrical equipment for explosive gas atmospheres:
Explosion-proof type d
(2) Intrinsically Safe Type e
(3) Intrinsically Safe i
(4) Positive Pressure Type P
(5) Immersed Type
(S6) Sand-filled type q
(7) Cast-in-place
(n) N-type
2. Electrical Equipment for Combustible Dust Environments
Dust-Proof Ignition-Resistant Enclosure
(2) Positive Pressure Type
(3) Intrinsically Safe
Sealed Type
3. Intrinsically Safe Type S
4. Composite:防爆型式 that combines two or more of the above-mentioned types

Can ODM/OEM companies apply for explosion-proof certificates and explosion-proof 3C certifications? What are the requirements?
Many customers are asking whether their products are OEM-manufactured, ODM-branded, or purchased.
Can you handle explosion-proof certification or explosion-proof 3C certification?
Here, Zhongnuo Inspection introduces the requirements and conditions for obtaining the explosion-proof certificate and the explosion-proof 3C certification.
If applying for an explosion-proof certification, the company only needs to provide the product's design drawings and samples.
No requirements regarding the presence of a production factory. Therefore, whether it's an OEM, ODM, or a product purchased directly,
As long as the required drawings and samples for certification are provided, a防爆qualification certificate can be issued.
Of course, the provided drawings and samples must comply with the explosion-proof certification standards.
Applying for the explosion-proof 3C certification requires an additional factory audit and an annual supervision and evaluation, compared to the explosion-proof qualification certificate.
Therefore, the applicant must have their own manufacturing factory/OEM/ODM factory.
The application process is also more complex and more expensive, with a longer duration, compared to obtaining the explosion-proof certification.
ZhongNuo Inspection has been deeply involved in the explosion-proof field for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in the design and modification guidance for explosion-proof products.
We offer a one-stop service for explosion-proof certification, including design modification, drawing evaluation, certification acquisition, factory audit, and explosion-proof 3C certification.
We have extensive evidence collection cases and experience. Feel free to send us a private message!

What are the requirements for obtaining an explosion-proof certification for robot products?
More and more robotic products are now being applied in explosion-proof areas.
Many customers have asked, how do we obtain explosion-proof certification for robot products? What technical requirements are there? According to which standards? Since the product is so large, do we need to send samples for testing?
Robot products are often modular equipment, and the units are large in size. To achieve explosion-proof performance,
This involves technical issues such as explosion-proof design of the entire unit, selection of electrical components, installation methods, battery selection and installation design, preparation of drawings, electrical connections, grounding, and more.
ZhongNuo Inspection has been in the explosion-proof industry for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in the field of robotics products.
We offer a one-stop explosion-proof certification service, including preliminary explosion-proof design rectification, drawing evaluation, component selection, installation guidance, and certification acquisition.
Products that are not convenient for shipping can also be offered on-site evaluation and testing services.
Successful certified cases include patrol robots, rail-mounted robots, and positive-pressure robotic arms.
If you have a need for this, feel free to message us anytime!
Explosion Proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.