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.
Explosion-proof product categories certified:
The new implementation measures are divided into 17 product units:
Explosion-proof motors: Center height ≤ 160mm, or rated power ≤ 15kW; Explosion-proof motors: 160mm < center height ≤ 280mm or 15kW < rated power ≤ 100kW; Explosion-proof motors: 280mm < center height ≤ 500mm or 100kW < rated power ≤ 500kW; Explosion-proof motors: Center height > 500mm or rated power > 500kW.
2. Explosion-proof electric pumps
3. Explosion-proof distribution equipment
4. Explosion-proof switches, control, and protection products
5. Explosion-proof starters
6. Explosion-proof transformers
7. Explosion-proof electric actuators, solenoid valves
8. Explosion-proof connector assembly
9. Explosion-proof surveillance products
10. Explosion-proof Communication and Signal Devices
11. Explosion-proof air conditioners, ventilation equipment
12. Explosion-proof electric heating products
13. Explosion-proof accessories, Ex components
14. Explosion-proof instruments and meters
15. Explosion-proof sensor
16. Safety Fencing
17. Explosion-proof instrument cabinets

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, while mine safety certification is for non-coal mine equipment.
Certificates are all applied for, reviewed, and issued at the Anbang Standards Center.
Certificates are valid for 5 years and must undergo supervision and review annually.
To obtain both Coal Safety Certification and Mine Safety Certification, both product testing and factory inspections are mandatory.
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 users do not meet these requirements, 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 audit.
Facilitate companies in obtaining coal safety and mine safety certifications smoothly.
Our successful cases include light boxes, remote controls, fiber optic temperature measuring devices, sensors, air compressors, mobile phones, thermal imaging cameras, and patrol robots.
If you have a need for this, feel free to DM us anytime for further discussion!

Does the explosion-proof certification include the explosion-proof 3C certification?
Currently, domestic explosion-proof certifications are categorized into Explosion-proof 3C Certification and Explosion-proof Compliance Certificate Certification.
The explosion-proof certificate and the explosion-proof 3C certification are for different types of explosion-proof products, falling under different certification models.
As of October 1, 2009, a portion of explosion-proof electrical equipment was included in the CCC certification catalog, which is a mandatory product certification.
Products within the catalog undergo explosion-proof 3C certification, adopting a "Product Testing + Factory Audit" model.
Both product type tests and factory on-site evaluations must be conducted.
Certification for explosion-proof products outside the防爆3C Catalog is available. The certification model involves product Testing; upon successful completion of product Testing, an explosion-proof certificate can be issued.
Of course, products outside the explosion-proof 3C catalog can also apply for an explosion-proof certification, but there is a risk of being penalized by market regulation. This is something for the customer to consider on their own. When consulting, the customer should first confirm the type of product and then decide on the certification model. If you're unsure whether the product is within the explosion-proof 3C catalog, you can private message Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd. for an evaluation and confirmation!

Flammability Dust Environment Explosion Proof Certification Standard:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T 3836.4-2021 Explosive Atmospheres, Part 4: Equipment protected by intrinsic safety "i"
GB/T 3836.5-2021 Explosive Atmospheres, Part 5: Equipment protected by positive pressure housing "p"
GB/T 3836.9-2021 Explosive Atmospheres, Part 9: Equipment protected by "m" type enclosures
GB/T 3836.31-2021 Explosive Atmospheres Part 31: Equipment protected by dust ignition-proof enclosures "t"
Explosion-proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.