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  • 3. Open-air drilling rig: according to the different working mechanism of crushing ore and rock, it is divided into steel rope percussion drill, drilling rig, cone drill and rotary drill. Because of low efficiency, the steel rope percussion drill has been gradually replaced by other drilling RIGS. The drill pipe drives the pneumatic impactor and the drill bit to rotate together, and the piston of the pneumatic impactor is used to impact the drill bit to break the ore and rock, which is usually used in small and medium-sized mines to drill holes with a diameter of 80 to 250 mm. The roller drill uses the rolling action of the roller bit to break the rock and is suitable for drilling holes of 150 ~ 440 mm in diameter on the hard rock. It has the advantages of high efficiency and low labor intensity, and is widely used in large and medium-sized open-pit metal mines. The drill consists of an impactor (or drill bit), a rotary mechanism, a lifting mechanism, a pressure device, a walking mechanism, a slag discharge system, a drill frame and a drill pipe. Rotary drilling machines are only suitable for drilling softer minerals and coal. The common feature of these devices is that the degree of automation is getting higher and higher, and some functions realize the application of intelligent i GPS technology on these RIGS, which realizes the automatic positioning of the boom, saves the time of field marking and positioning, improves the efficiency of the operation, and enables the operator to concentrate on monitoring the process of drilling. At the same time, more attention is paid to safety and environmental protection and the improvement of human-machine relationship. With the impact of the implementation of engine emission regulations, mobility, intelligent handling and environmental regulations Tier 3/ Euro ⅢA emission regulations, most foreign rig manufacturing companies have adopted diesel engines that meet the emission standards

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    3 16 barras de perfuração2025-08-16 07:02
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    Gravel pumps are specialized centrifugal pumps that are capable of handling large particles and volumes of liquid mixed with solid materials. These pumps are essential in applications such as dredging, quarry operations, and the transfer of materials in concrete production. The unique design of gravel pumps allows them to operate effectively in harsh conditions, making them indispensable in industries that require robust and reliable equipment.


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    3 16 barras de perfuração2025-08-16 06:20
    950

  • The SS gate handle also offers ergonomic benefits. Designed with human factors in mind, these handles are usually shaped to fit comfortably in the hand, allowing for smooth and effortless operation. Whether it's a child, an adult, or someone with physical limitations, a well-designed SS gate handle ensures ease of use for all.
  • One of the primary advantages of steel door rollers is their durability. Made from high-grade steel, these rollers can withstand heavy use and harsh conditions, ensuring that your door continues to operate smoothly for years to come. Unlike plastic or aluminum rollers, which can easily break or wear down over time, steel rollers are built to last.
  • In addition to their security and portability, small lockable metal storage boxes are also versatile. They can be used for a variety of purposes, from storing important documents and jewelry to keeping small electronic devices safe. Some people even use them to store medication or other personal items that need to be kept secure.
  • One of the reasons why the metal box with a padlock remains popular today is its versatility. It can be used in a wide range of settings, from residential homes to commercial businesses, and from personal use to institutional settings such as banks and government agencies It can be used in a wide range of settings, from residential homes to commercial businesses, and from personal use to institutional settings such as banks and government agencies It can be used in a wide range of settings, from residential homes to commercial businesses, and from personal use to institutional settings such as banks and government agencies It can be used in a wide range of settings, from residential homes to commercial businesses, and from personal use to institutional settings such as banks and government agenciesmetal box with padlock. Its compact size and rugged construction make it ideal for storing items that need to be kept secure but also easily accessible.