7° Coal Mining Shank 22 mm Rock Hex Rock Drill Rod

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The phrase described above is about a drill rod specifically designed for coal mining. Here’s the translation of the explanation into English:

• 7°: This typically refers to the taper of the drill rod, indicating the angle of diameter change from one end to the other. The taper helps the rod penetrate rock layers more easily during drilling, reducing resistance.
• Coal Mining Shank: This indicates that the drill rod is specifically designed for coal mining applications. In coal mining, drill rods are used to create holes in rock strata for placing explosives or performing other mining operations.
• 22 mm x 159 mm: This is a description of the rod’s dimensions. The 22 mm likely refers to the diameter of the drill rod, while the 159 mm might represent the length of the rod or the length of a critical section.
• Rock Hex Rock Drill Rod: Here, “Rock Hex” could refer to a specific type or design of the rod, particularly its hexagonal shape, which helps to better transmit torque and provides stability during drilling. The phrase “Rock Drill Rod” directly indicates that it is a drill rod used for rock drilling.

In summary, the phrase described a hexagonal rock drilling rod with a specific taper and dimensions, specifically designed for coal mining applications. This type of drill rod plays a crucial role in coal mining operations, especially in drilling holes in rock strata.