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.
Process for applying for a防爆 certification at Shenzhen Zhongnuo Inspection Technology Co., Ltd.
1. Conduct product evaluation and provide an initial quote for the requested products. Evaluate the product using the company's product specification, electrical schematics, and component list, determining the appropriate type of explosion-proof certification suitable for the product and providing an initial quote.
2. Provide samples for laboratory testing; the quantity of samples required varies depending on the product category.
3. Provide documentation list review
Application documents, including applicant information and product details
(2) Technical documents, including the submitted technical materials from the company such as corporate standards or technical requirements, product drawings, user manuals, etc.
A. Company Standards/Technical Requirements: The company standards/technical requirements for products should be written in the prescribed format, including not only the performance requirements of the product but also relevant content regarding explosion-proof aspects: such as basic parameters, explosion-proof markings, environmental conditions of use, explosion-proof performance requirements, relevant tests for explosion-proof performance, and markings related to explosion-proof.
B. Product Drawings - When applying for an explosion-proof certificate for intrinsically safe electrical equipment, the company should provide assembly drawings, circuit diagrams, printed circuit board layouts, silk screen drawings, material lists of components, and label drawings, among others. For explosion-proof certificates for non-intrinsically safe electrical equipment, the technical documents submitted for inspection should include drawings that reflect the sample's explosion-proof performance (including assembly drawings and component drawings). If the assembly drawing clearly indicates the product's explosion-proof parameters and structure, it may be sufficient to submit only the assembly drawing.
C. Instruction Manual - The instruction manual should include basic parameters, explosion-proof markings, product外形 diagram, installation, maintenance, order requirements, and clear instructions to the user regarding the precautions to ensure the product's explosion-proof performance during installation and use.
D. Other Information: For products with adhesive bonding or casting, provide the model names, performance descriptions, and relevant process documents for the adhesives and casting agents. For plastic shell products, provide the material of the plastic and corresponding performance documents.
4. Certificate issuance

What are the requirements for applying for coal safety certification and mine safety certification?
Coal Mine Safety Certification and Mine Safety Certification are mandatory certifications for mining products and equipment.
Coal Safety Certification is for equipment used in coal mines, and Mine Safety Certification is for non-coal mine equipment.
Certificates are all applied for, reviewed, and issued at the ANSI Center.
Certificates are valid for 5 years and must be supervised and reviewed annually.
Both coal safety certification and mine safety certification require two parts: product testing and factory audit.
Applicants must possess design and development capabilities, provide complete product design drawings, and have their own manufacturing facility.
Some products can also apply for coal safety and mine safety certifications through the OEM process.
If dealers or end-users do not meet these qualifications, they are not eligible to apply for the Coal Safety and Mine Safety Certification.
Shenzhen Zhongnuo Inspection, as a coal safety and mine safety certification body, is well-versed in the standards and requirements.
A dedicated team of engineers and factory audit services.
We offer services including online application, product design and modification, technical drawing revision, and factory inspection.
Facilitate companies in obtaining coal safety and mine safety certifications smoothly.
Our successful cases include light boxes, remote controls, fiber optic temperature measurement devices, sensors, air compressors, mobile phones, thermal imaging cameras, and patrol robots.
If you have any needs in this regard, feel free to DM us for further discussion at any time!

Why is it necessary to apply for an explosion-proof certification for the product?
Safety is crucial, especially for production that involves explosive hazards; it inherently poses significant risks.
If the equipment itself is not explosion-proof and can easily spark or overheat, igniting surrounding explosive materials, that could be a major issue.
To obtain explosion-proof certification for a product is to ensure that the equipment can be safely used in environments with explosive hazards.
Due to the inherent issues with the equipment itself, it ignited the surrounding environment. Of course, if the equipment failed to explode-proof, that's a different matter.
As the user, would you opt for explosion-proof equipment or regular equipment if there's a potential explosive hazard on your site?
As a supplier, wouldn't it be more appealing when selling your products at these on-site locations if they have obtained explosion-proof certification?
If your equipment is looking to obtain explosion-proof certification and enter the explosion-proof market, please message us right away!
ZhongNuo Inspection has been deeply involved in the explosion-proof field for many years, well-versed in the requirements of GB/T3836 and EN/IEC60079 explosion-proof standards.
Offer explosion-proof product modification and design guidance, as well as a one-stop explosion-proof technology solution with certification.

How to Apply for Explosion-Proof Certification for Enterprises:
1. Self-Application: The company applies to the certification body independently, prepares relevant documents on its own, assists in debugging the prototype, and modifies any irregularities in the documents. The process is relatively longer, with higher overall costs, and requires more time and effort.
2. Agent Application: It refers to the entire process of consulting and applying to Shenzhen ZhongNuo Testing Technology Co., Ltd., including material revisions, prototype debugging, and progress coordination, which are entrusted to the consulting agency, ensuring a smooth progress. Fast certification, manageable overall costs, and time-saving efforts.
explosion-proof certification application consulting service - Shenzhen Zhongnuo Testing Technology Co., Ltd.