Medium-length hole mining jumbo equipped with Woserld A22L/D hydraulic rock drill. Drill rod

Release Time: 2025-10-30

Hebei Copper Mine, Cross-section: 3.5×3.5m, rock hardness: F8. Medium-length hole mining jumbo equipped with Woserld A22L/D hydraulic rock drill.

Drill rod: T38, single length: 1.525m, with Φ64mm drill bit. Drilling time per rod: 1 minute.

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