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The History of Rock Drilling Tools

      As the country of invention of percussion well sinking and gunpowder, my country invented the integral steel brazing rock drilling technology as early as 2,500 years ago. On the eve of the Opium War in 1835, in the Zigong area of Sichuan Province, the salt industry craftsmen at that time successfully applied the “drilling” technique and dug the world’s first deep well over one kilometer (the Zigong Shenhai well was 1001.42 meters deep), composing the human race. The splendid history of percussive rock drilling technology has won the attention and praise of scientists from all over the world, and is known as the “fifth greatest invention in ancient China”. But since the Opium Wars, China’s rock drilling technology has been stagnant for more than a century.

In modern society, rock drilling technology is regarded as the forerunner of the extractive industry, and is known as “the teeth of the extractive industry”. Since the mid-nineteenth century, rock drilling technology and mining industry have developed rapidly around the world.

The Swedish Nobel father and son invented nitroglycerin colloidal explosive, which has been widely used in road construction and mining. Pneumatic rock drills were born in the United States, Sweden began mass production of hollow brazing steel, and Germany invented WC-CO cemented carbide. France invented the high-power hydraulic rock drill, which formed a global emerging industry of cemented carbide cutting tools, rock drilling tools and rock drilling machinery, and directly led to the rapid development of machinery and mining industries after World War II.

The machinery industry is the core of modern industry, while the extractive industry is the foundation of the entire industry. Therefore, from new brazing steel to new rock drilling cemented carbide, to new rock drilling tools and new rock drilling equipment, high-efficiency, safe and low-consumption rock drilling has become a common source of mining industry technology and industry all over the world. the goal that is pursued.

1 History of Rock drills and blasting

Gunpowder is one of the four great inventions in ancient China. It has been widely used in warfare and is a weapon with great lethality. In the 12th and 13th centuries, gunpowder was introduced into the Arab countries through the Mongolian expedition, and then spread to Greece, Europe and even all over the world. It has played an important role in promoting the civilization and progress of human society and the economic, scientific and cultural development. There were no records of the use of gunpowder and firearms in the United States until the mid-14th century.

In the 16th century, Hungary used blasting for mining; in the 17th century, some mines in Germany and northern Europe put gunpowder into the blasthole to improve the blasting effect. Founded in 1644 as a major mining town in central Norway, Roros began to use gunpowder in 1644, which was the beginning of the drill and blast method.

By the mid-19th century, the use of sledgehammers and drills was still the main method of rock drilling around the world. In the long course of social development, with the continuous improvement of social production demand, people began to seek methods of drilling blastholes with mechanical equipment.

In 1813, the first steam-powered percussion rock drills came out, opening the way for the development of rock drilling machinery.

In 1844, the British Bronton invented a rock drills powered by compressed air, but the design itself has many problems and cannot be practically applied.

In 1849, J.J.Couch patented the world’s first steam-driven impact rock drills in Philadelphia and put it into practical use.

In 1857, Italian engineers Bartlett and Germaine Samet improved the research results of their predecessors and designed a rock drill powered by compressed air, which was officially used in the Alps Seini Tunnel, so this year was considered a rock drill. year of birth. At that time, the piston of the rock drill was connected with the drill rod. This structure not only consumed too much power, but also limited the increase of rock drilling frequency, so the rock drilling speed was low.

Around 1860, the invention of detonators and nitroglycerin gum explosives by Mr. Nobel further stimulated the development of this industry.

From 1850 to 1875, about 110 rock drill patents were filed in the United States, while 86 rock drill patents were filed in Europe.

In 1884, the American Genshert realized the separation of the impact piston and the drill rod of the rock drill for the first time, laying the foundation of the modern rock drill.

In 1897, American Reynolds developed a hollow drill pipe, which can be flushed with compressed air and water during rock drilling, and improved the gas distribution valve and rotary drill mechanism (with ratchet pawl screw rod), which is a major breakthrough in the history of rock drill development. .

In 1938, the Germans made air legs and tungsten carbide drill bits, which had a significant impact on the development of rock drills. The air legs could apply thrust to the drill bits, support the weight of the rock drill, and reduce the physical strength of workers; tungsten carbide drill bits The grinding times of drill bits are greatly reduced, and the continuous improvement of air-leg rock drills and drill bits has put forward new requirements for the efficiency of rock drills.

In the 1960s, the independent rotary rock drill with separate rotary and impact mechanisms came out, which successfully solved this problem, which was another breakthrough in the development history of pneumatic rock drills. Such rock drills are called external rotary rock drills.

With the continuous increase in the power of rock drills, air-leg rock drills can no longer meet production requirements. At the same time, in order to reduce the operator’s physical strength, column-supported rock drills appeared. In the 1950s, a variety of self-propelled pneumatic drills appeared. car.

With the continuous development of rock drills, the drilling depth has been continuously increased. Usually, the method of deep space connecting rod is used to drill deeper rock holes. People have noticed that this method will cause a large loss of energy on the drill rod. Following the idea of the drill bit diving into the bottom of the hole to drill directly.

Ingersoll Rand-Rand made this idea a reality and patented it in 1932, and it was used in open pit mines in the late 1940s.

The seemingly simple machinery now realizes the dream of human beings to conquer rocks, promotes the development of the history of drilling and blasting, and lays the foundation for human mines, tunnels, water conservancy, military and other related projects.

2 Ingersoll Rand Company History

In 1871, American inventor Simon-Ingersoll applied for a patent for a steam-driven rock drill and established the Ingersoll Rock Drill Company in the same year. A few years later, he purchased the patent of Fowle Burleigh and merged with the Burleigh Company. The second generation Burleigh rock drill which was put on the market in October 1876 was successfully used in the Hoosac Tunnel in Massachusetts, which also marked the change of the rock drill from a kind of rock drill. The experimental product was upgraded to a reliable technology (see Figure 2). In 1905, the Ingersoll Sarkin Rock Drill Company merged with the RAND Rock Drills Company to form the Ingersoll Rand Company, a name that has not changed since then.

3 Epiroc’s evolution history

Epiroc’s 140-year-old history as a young company is touted as its own history of the pre-split Atlas Copco company. Atlas was founded in Stockholm, Sweden in 1873 by André Oscar Wallenberg.

The company’s original business was to provide railroad companies with a variety of railroad construction and operation equipment. In 1890 the company changed its name to Nya Aktiebolaget Atlas, or “New Atlas Co., Ltd.”, with three main areas of business: trains, commercial district heating systems and machine tools. The start-up period of the company is very difficult, and the business changes frequently.

At the beginning of 2017, Atlas Copco began to split and strip mine rock drilling and rock excavation. On June 18, 2018, Epiroc officially became independent from Atlas Copco and became a dedicated company. Manufacturer of construction machinery for rock drilling and rock excavation in mines.

Since the real success of Atlas Copco relies on the Swedish rock drilling method invented by Mr. Wallenberg, the business of pneumatic rock drills is not assigned to Epiroc, which is related to the mining business. It remains with Atlas Copco.

4 The evolution of Sandvik

Tamrock was founded in 1865, originated from Finland, the world’s leading rock drilling equipment company, originally Tampere Linen and Steel Industry Co., Ltd., Tomrock was the first to produce an independent rotary pneumatic rock drill (see Figure 3), Later developed into a famous brand of hydraulic rock drills and rock drilling rigs.

5.Development history of drilling tools

Advances in rock drilling tools began in 1890 with the use of heat-treated steel to improve performance. In 1918, in order to find a substitute for diamonds, Germany set up a team at the Osram Electric Light Factory to develop tungsten carbide. Later it became a magical cutting tool. In 1928, cemented carbide was first used in German mines with very good results. But before World War II, the team was forced to disband, and many people fled to other countries. Among them, Dr. Hans Herman Wolff was forced to seek asylum in Sweden. Since then, he has built a large number of drills to the designs of Atlas’ Erik Ryd. The bits were extensively tested in Atlas’ pilot mines.

In 1942 Atlas, Sandvik and Fagersta signed a cooperation agreement, and authorized the latter two companies to license patents and provide carbide drills. After years of improvement, it was not until 1945 that the economics of carbide drills reached the same level as the original drills.

Sandvik is a company established in 1862 with steel as its main product. It began to produce drilling tools in the 1860s. Through this agreement, it officially entered the field of cemented carbide.

6. KING KONG’s Mission

The History of Rock Drilling Tools

The History of Rock Drilling Tools: Rock Drilling Tools, Rock Drills, The China Drilling Tools,

KING KONG was built on the year of 2012 by Mr.Bruce who was graduated from Oxford university, then he back to China and found his Uncle Li who was the Chairman of Atlas Copco of China. They built the China Drilling Tools together and then Created the King Kong Brand drilling tools.

After 8 years developing. The King Kong Brand has became the famous brand drilling tools in the China market and now they are dedicated to spread them to all over the world.  The China Drilling Tools company also have produced for Atlas copco, Sandvik etc international companies.


The development of any enterprise is not smooth sailing, most of the history will be forgotten by everyone, and we only remember a very small part of the highlights of success. However, excellent companies have excellent genetic inheritance. KING KONG is like this. The development route of products is always market-oriented, value-oriented, and constantly advancing with the times. In terms of product research and development, it is also very open, not limited to the existing achievements, dare to constantly self-denial, and constantly improve and improve.

Our domestic rock drilling machinery R&D and manufacturing enterprises do not need to start from scratch on the road of research and development, but also avoid detours and learn the advanced technology of benchmarking enterprises and benchmarking products humbly.

Our KING KONG company should also learn the spirit of continuous exploration and continuous improvement of excellent enterprises. Taking the benefits of both manufacturing enterprises and customers as the assessment goal, adhere to the product development idea oriented by market demand, change only focus on production and manufacturing, not on experimental research, only on design drawings, not on process drawings, not on details, only on simulation Calculated and published papers, and did not pay attention to the situation of forward design of rock drill structure and size according to performance parameters.

Looking back on the history since 1850, it can be seen that in the field of mining and rock excavation equipment, the latecomers merged with the forerunners to catch up with the early movers, which happened from time to time in history. Therefore, domestic rock drill companies do not need to belittle themselves because they are temporarily backward. Now there is a huge domestic market demand, a good industrial foundation, a stable social environment, and rock excavation and rock drilling machinery products have high profit margins. As long as the R&D team members calm down Come, concentrate on doing things seriously, China’s mine and rock excavation products and KING KONG enterprises must be full of hope.

KING KONG Is The Perfect Choice For Your Supplier Of Rock Drilling Tools.


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