Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
What is the Coal Safety Certification?
Coal Mine Mark Certification (abbreviated as MA, KA Certification) is a mandatory certification implemented by the Coal Mine Safety Mark Office for items used underground in coal mines.
Products listed in the safety certification directory for mining must obtain a certification certificate. Individuals and entities are prohibited from selling, purchasing, or using mining products included in the safety mark management directory without obtaining a safety mark.
The manufacturer of the product must undergo several steps to obtain a safety mark, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.

What are the requirements for applying for the Coal Safety/Mine Safety Mark? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
(1) Meets the safety production requirements for coal mines, in compliance with current standards, industry safety standards, and the "Coal Mine Safety Regulations."
(2) Proper and complete technical documents are available.
(3) New products produced with new materials, technologies, and processes should have an evaluation opinion from the relevant departments.
(4) Other relevant conditions.

Coal Mine Safety Sign Certification is a mandatory certification implemented by the Coal Mine Safety Sign Office for items used underground in mines. All products listed in the Coal Mine Product Safety Certification Catalog must obtain a certification certificate.
Products with Coal Safety/Mining Safety certification can 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 yet obtained a safety mark.
The manufacturer of the product must undergo several steps to obtain a safety mark, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.

Sample Preparation for Coal Mine Safety and Mine Safety Certification -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
The sample machine is manufactured according to the design drawings. The project team establishes the production inspection outline based on the company's and industry standards. The quality assurance department completes the factory inspection according to the production inspection outline. Note: In addition to preparing the sample machine, electrical products also require 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 disconnect switches, etc.
Coal Mine Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.