ES-60 Pneumatic Grinder

This series of pneumatic grinding machines is widely used worldwide, with the introduction of Russian technology and significantly superior processing technology compared to similar products. They are the main tools for polishing burrs and welding points in the shipbuilding industry, welding industry, and mechanical manufacturing industry.

5. The connecting head between the branch detonating tube and the main detonating tube is continuous and firmly connected with adhesive tape. The other end of the main detonating tube is used to insert the detonating needle for detonation and wrapped tightly with adhesive tape.

6. To save the detonating tube, a double stranded copper core wire is connected between the detonator and the detonating needle for long-distance detonation. The length of copper core wire is determined by the safe distance of blasting.

7. The safety distance for secondary blasting should be greater than 50 meters and there should be at least two turns; The safe distance for blasting in patios, shallow hole mining rooms, and medium hole rock tunnels should be greater than 100 meters, and there should be at least two turns; The safe distance for excavation and blasting of bottom level tunnels should be greater than 200 meters; The safety distance for medium hole large blasting should be greater than 500 meters.

8. Copper core wires should have as few joints as possible in the middle (no more than 5), and there should be no dead knots or open edges. Before each detonation, the copper core wires should be checked for smoothness. If any broken ends are found, they should be wrapped with waterproof insulation tape to ensure smooth detonation network.

9. The detonator, copper core wire, and detonating needle are kept and used by the detonator full-time, and it is prohibited to lend them to others for use. The detonating needle should be covered with a soft plastic sleeve to prevent damage to the detonating needle when recycling copper core wires. After each explosion, the detonator should use a wire winding device to timely retrieve the detonating busbar.