Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
What are the requirements for applying for the Coal Safety/Mineral Safety Mark? -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
Meets the safety production requirements of coal mines, in compliance with current standards, industry safety standards, and the "Coal Mine Safety Regulations."
(2) Proper and complete technical documents are provided.
(3) New products produced with new materials, technologies, and processes should have evaluation opinions from relevant departments.
(4) Other relevant conditions.

What is the difference between applying for the ATEX certification and the coal mine safety certification?
intrinsic safety certification, also known as intrinsic explosion-proof certification.
In the explosion-proof industry, there are various types of explosion-proof protection, such as separation, intrinsically safe, increased safety, positive pressure, and sealed-in types, etc.
Intrinsically safe is just one type of explosion-proof design. Equipment using this type of explosion-proof design in explosive areas is inherently safe. This is because the working voltage, current, capacitance, inductance, etc., are limited, so even if sparks are generated inside the circuit, they are not sufficient to ignite the surrounding explosive environment.
The ATEX certification is widely applied to low-power, energy-efficient instruments, handheld terminal products, and more.
Coal Mine Safety Certification is a mandatory safety certification for equipment used underground in coal mines.
Due to the presence of explosive substances like methane in underground coal mines, electrical equipment used in such mines must be equipped with protective measures to ensure explosion-proof performance.
Select the appropriate explosion-proof protection type, such as intrinsically safe, flameproof, and encapsulation, based on product structure, electrical parameters, installation method, and operating area.
It's noteworthy that electrical equipment applying for the Coal Safety Certification must not only possess explosion-proof features but also meet performance tests for the unique underground coal mine environment.
ZhongNuo Inspection has long been focused on explosion-proof certification and coal safety certification, well-versed in certification standards and the design, rectification, testing, certification, and factory audit processes and requirements for explosion-proof products. We can help businesses quickly apply for explosion-proof and coal safety certifications.

Coal Mine Safety Sign Certification is a mandatory certification implemented by the Coal Mine Safety Sign Office for products used underground in mines. Any product listed in the Coal Mine Product Safety Certification Catalog must obtain a certification certificate.
Products with Coal Safety/Mineral Safety certification can only affix the MA/KA mark. Individuals and entities are prohibited from selling, purchasing, or using mining products included in the safety mark management directory but not bearing the safety mark.
The manufacturer of the product must undergo several steps to apply for a safety mark, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.

Preparation of Coal Mine Safety and Mine Safety Certification Samples -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
The prototype is manufactured according to the design drawings. The project team establishes the inspection outline based on the company and industry standards, and the Quality Assurance Department completes the factory inspection according to the inspection outline. Note: In addition to preparing the prototype, electrical products also require the preparation of electrical components for intrinsic safety testing, such as intrinsic safety power supplies, sensors, etc.; and electrical performance testing components such as contactors, circuit breakers, and isolating switches, etc.
Coal Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.