Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
Coal Mine Safety Certification is the abbreviation for Coal Mine Safety Certification.
In 2007, the Economic and Trade Commission and the Coal Mine Safety Supervision Bureau issued documents such as the "Provisional Measures for Safety Marking of Coal Mine Products," implementing a safety production certification system for equipment, instruments, and meters used in underground coal mines, effectively preventing substandard products from entering the mines. The safety production marking system is an effective method.
To enhance coal mine safety, there is an increasing emphasis on the development of safety technologies. The funding approach for technological development has been reformed. Due to insufficient safety investments, a financial security mechanism for the research and development of safe production should be established.
Therefore, all types of equipment and products used in coal mine underground must pass the safety certification system of the Safety Standardization Center and obtain the corresponding coal safety certification.

What documents are required to apply for the Coal Safety/Mine Safety certification?
(1) Corporate Standards
(2) Product Manual
(3) Product Drawings (circuit diagrams, PCB layouts, schematics, assembly drawings, hydraulic diagrams, location drawings, etc.)
(4) Bill of Materials (BOM)
(5) Nameplates, factory certificates of conformity, etc.
(6) Sample

How long is the validity of the Coal Safety/Mineral Safety Mark? -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
Currently, the validity period for the coal safety/mining safety mark on conventional products is 5 years, and a new certificate must be obtained upon expiration.
Certification marks for coal and mine safety on industrial trial products and new products have varying validity periods, ranging from 1 year to 2 years and 3 years.
Imported products applying for the Coal Safety/Mineral Safety Mark on a batch basis are not subject to an expiration date and are valid only for the batch of imported products in question.

What explosion-proof certifications are required for explosion-proof products? What are the institutions for applying for explosion-proof certifications?
Currently, the certification models for explosion-proof products entering the market in China mainly consist of three types.
1. Issue explosion-proof certificates for equipment used in environments with explosive gases and combustible dust in non-coal mines. Only product testing is required; upon passing, the certificate is issued.
2. Conduct explosion-proof 3C certification; for products listed in the explosion-proof 3C directory, product testing and factory audit are required.
3. Coal Mine Safety Certification, for explosion-proof equipment used underground in coal mines, featuring product testing and factory audit certification process.
ZhongNuo Inspection is an institution offering explosion-proof certification application consulting.
We offer a one-stop service for explosion-proof certification and coal safety certification, including防爆 product design, modifications, drawing evaluation, certification acquisition, and factory audits.
Proficient in certification standards and procedures, with a wealth of case studies and experience. Feel free to send us a private message!
Coal Mine Safety Certification and Mine Safety Certification Consulting Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.