There are many different options in hydraulic rock drill models, but all work basically the same. Understanding how these drills work will help you to evaluate different models and types of these drills and to determine which is going to the beat match for your needs.
The use of hydraulic rock drill extends beyond just companies that specializing in drilling. They are also used for construction, excavation and for exploration in oil and gas industries, geothermal drilling and a range of other types of applications.
The hydraulic rock drill works of a hydraulic system which uses hydraulic fluid under pressure to create the force the drill exerts to create the holes. There are also pneumatic rock drills that utilize pressurized air, and both can be extremely effective at drilling down through thick, dense rock layers at or below the surface of the earth.
Water and Coolant
Depending on the specific application for the hydraulic rock drill, coolant may be used to assist the drill in breaking through layers of clay, dirt and rock. The most commonly used coolant is simply water, and by running water down the drill it not only softens the adjacent soil but it also helps to keep the drill cooler, leading to less stress on the metal in the drill itself.
The water can also act as a lubricant in the soil, rock and clay helping to prevent the drill from becoming stuck, which can cause significant risk of damage to both the drill and the hydraulic system.
The power of a hydraulic rock drill comes from the movement of the hydraulic fluid under pressure. This pressure creates both the ability of the drill to create an impact and move up or down, as well as the actual rotation of the drill to create the digging potential.
Larger types of the designs of hydraulic rock drill models will have larger hoses, cylinders and systems to provide the power needed to penetrate through the dense layers of soil and rock to dig larger diameter holes.
Some of the hydraulic rock drill designs are constructed to drill only in the vertical direction. This can include drilling both down as well as back up, providing both the drilling and augering needs. Other drills can also be designed to drill vertically, which is accomplished by the drill being mounted on a boom that can swing out and hold the drill parallel to the ground or any angle between vertical and horizontal.
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