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(3) If the drilling rig cannot open the hole smoothly, it should first assign the rock drill to retreat, and then let the rock drill move forward to open the hole from the beginning.

Problem: The pump does not produce water, and the vacuum gauge indicates a high vacuum

The Mechanism Behind DTH Drilling

Maintenance Considerations

2. Rock drill: used to drill holes with a diameter of 20 ~ 100 mm and a depth of less than 20 meters in rocks above medium and hard. According to its different power can be divided into pneumatic, internal combustion, hydraulic and electric rock drill, of which pneumatic rock drill is the most widely used.

The reliability of gravel pumps directly impacts various industrial processes. Any downtime due to equipment failure can result in significant financial losses and delays in project timelines. Therefore, the reputation of a manufacturer often hinges on the quality and durability of their pumps. Companies that choose to partner with established manufacturers known for their rigorous quality control processes tend to experience fewer operational issues and enjoy better overall performance from their equipment.

The use of wood mold or lost foam requires the mold to be consistent with the real thing, the appearance is smooth, and the yield and surface finish of the casting are improved, so as to reduce flash, burr and cold separation.