Coal Mine Permissible Electric Detonators
Coal mine electric detonators are one of the company’s products. Currently, the company offers over thirty types of civilian explosives across six major series, with an annual production capacity of 18,000 tons of industrial explosives, 60 million industrial detonators, and 20 million meters of detonating cord.
Application Areas
The company primarily provides civilian explosives, engineering blasting, and hazardous materials transportation services to the mining, tunnel excavation, blasting, transportation construction, and urban blasting sectors.
Including instantaneous electric detonator for coal mine and millisecond delay electric detonator for coal mine
1. Coal mine electric detonators executive standard: GB8031 Industrial Electric Detonator and MT62-1997 Test Method and Judgment Rules of Safety of Permissible Electric Detonator for Coal Mining in Firedamp.
2. Basic characteristics: Having the level of domestic product of the same kind, using copper-plated steel casings and rigid ignition elements. Having good firing consistency and detonating capacity. High precision delay time, and reliable storage, transportation and application.
3. Application: Suitable for blasting operations in mines with methane and (or) coal dust explosion hazards and general blasting engineering.
4. Specification and performance：
1) Length of iron leg wire:
2m, a product of other specification also available based on user needs; shell length: 62 ~ 70mm.
2) Section and delay time：
For delay time of millisecond delay electric detonator for coal mine, see the table below:
| Section. | 1 | 2 | 3 | 4 | 5 |
| Nominal delay time (ms) | 0 | 25 | 50 | 75 | 100 |
| Leg wire color | Gray red | Gray yellow | Gray blue | Gray white | Green red |
5. Coal mine electric detonators packaging:
10 rounds/bundle, 100 rounds/box, 10 boxes/case, 1000 rounds/case.
6. Warranty period:
a year and a half from the date of manufacture (in a standard warehouse).
The company is building a group-based operation model integrating R&D, production, sales, transportation, and blasting services.
Our philosophy
Adhering to the management philosophy of “people-oriented, continuous improvement, technical support, and innovative development,” the company is committed to building a corporate culture centered on “responsibility, innovation, value, integrity, and harmony.”
Our goal
With the business philosophy of “customer first, employee first, differentiated competition, sustainable development, and moving towards the next century”, we strive to create greater value for customers, employees and shareholders, and contribute to the safe and healthy development of China’s civilian explosives industry.
