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.

Additionally, ongoing research into new rubber compounds is leading to the development of materials that can withstand even more extreme conditions. Innovations in wear-resistant coatings and advanced rubber blends are making pumps more durable and efficient.

2. Pedestal Pumps Unlike submersible pumps, pedestal pumps have their motor mounted above the water level. They are easy to maintain since the motor is not submerged. However, they are often less efficient for continuous use in flooded areas.

1. 효율성 디젤 엔진은 다른 연료에 비해 연료 효율성이 높습니다. 이는 장시간 동안 작업해야 하는 건설 현장에서 특히 중요한 요소입니다. 덕분에 작업자는 연료 비용을 절감할 수 있습니다.

Submarine hammer drilling, often referred to as underwater percussion drilling, is an advanced technique utilized primarily in marine construction and resource exploration. This method combines the principles of traditional drilling with hydraulic and pneumatic operations, enabling the effective penetration of hard substrates beneath the sea floor. In this article, we will explore the processes, equipment, advantages, and applications of submarine hammer drilling.

Drilling rig is a tool used to directly mine stone. It drills through rock layers to extract stone or other stone works.

Additionally, submarine hammer drilling is a versatile technique, suitable for various applications, including the installation of underwater pipelines, foundations for offshore structures, and the recovery of geological samples for research and analysis. This adaptability makes it an essential tool in the fields of marine engineering, environmental research, and resource extraction.

Down-the-hole hammer drilling is a technique used primarily for drilling boreholes in hard rock applications. It employs a pneumatic hammer, situated directly at the drill bit, to deliver high-impact blows that effectively break up the rock. This method contrasts with traditional rotary drilling, where the drill bit operates at the surface and relies on torque and weight to penetrate the ground.