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 one-stop explosion-proof technology consulting services.
The cost of obtaining explosion-proof certification at Shenzhen Zhongnuo Inspection Technology Co., Ltd. is related to the following aspects:
1. Do you need a防爆certification or a防爆3C certification? For the防爆3C certification, a factory audit is required, which involves additional costs for the audit fee, the travel expenses of the auditor, and the applying fee and Certificate fee for the 3C certificate.
2. Related to explosion-proof markings. Different explosion-proof markings denote different explosion-proof items, and naturally, the costs vary accordingly.
3. Domestic explosion-proof certification or international explosion-proof certification? The same explosion-proof mark, ATEX/IECEx certification is much more expensive than the domestic explosion-proof certificate, and it also requires a factory audit. North American explosion-proof certification is even more expensive, over $100,000+
4. Do you need a retest? Some customers' products haven't even been designed for explosion-proof, and they still need to be modified, which adds to the cost. If the product includes a battery, the battery test is also an additional expense, especially for those batteries that keep failing the tests.
5. Necessary? Labs are often booked solid, often requiring a waitlist. If needed, there will be a fee involved.

What are the requirements for applying for Coal Safety Certification and Mine Safety Certification?
Coal 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.
All applications, reviews, and certifications are processed at the ANSI Center.
Certificates are valid for 5 years and require annual supervision and review.
To obtain both Coal Safety Certification and Mine Safety Certification, both product testing and factory inspections must be completed.
Applicants must have design and R&D 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 OEM.
If dealers or end-users do not meet these criteria, they are unable to apply for the Coal Mine Safety and Coal Safety Certification.
Shenzhen Zhongnuo Inspection, as a coal safety and mine safety certification body, is well-versed in the standards and requirements.
A team of engineers and factory audit service professionals.
We offer services including online application, product design and modification, technical drawing revision, and factory audit.
Facilitate businesses in obtaining Coal Safety and Mine Safety certifications smoothly.
Our successful cases include lightboxes, remote controls, fiber optic temperature measuring devices, sensors, air compressors, mobile phones, thermal imaging cameras, and patrol robots.
If you have any needs in this regard, feel free to message Shenzhen ZhongNuo Inspection & Technology Co., Ltd. for further discussion at any time!

Explosion-proof Certification Categories -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
Explosion-proof certification is the process of verifying that equipment meets the requirements of explosion-proof standards, type testing, and routine tests, and issuing the corresponding qualification certificates. Certificates can be issued for Ex equipment or Ex components.
Different regions have varying certification standards and systems for explosion-proof electrical products. Currently, international explosion-proof certifications include domestic explosion-proof certification, ATEX certification, IECEx certification, and North American explosion-proof certification.

Sample Requirements for Explosion-Proof Certification Application:
The sample machines submitted by the company for inspection must match the approved drawings and be fully assembled. The number of units inspected should meet the requirements.
If special disassembly tools are required, they should be sent along as well.
For encapsulated electrical equipment, a set of both encapsulated and non-encapsulated products should be submitted.
Observing window transparent pieces should be sent separately, with at least 3 pieces, and an additional 5 pieces.
The transparent parts of the lighting fixtures should be sent separately in at least 5 pieces, with an additional 8.
Rubber aging tests should provide 3 to 5 pieces of 35156 rubber blocks.
Provide 2 plastic sheets with a diameter of 150-60mm for insulation resistance testing of the plastic shell. If dimensions permit, the test can be conducted directly on the plastic shell.
Finished products typically require 1-2 samples.
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.