HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self drilling anchor tools,coal mining tools and other drill tool accessories.
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HIGH QUALITY
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company has strictly quality control system and professional test lab.
DEVELOPMENT
Internal professional design team and advanced machinery workshop.
We can cooperate to develop the products you need.
MANUFACTURING
Advanced automated equipment and a rigorous process control system.
We can manufacture a wide range of rock drilling tools.
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Bulk and customized small packaging, FOB, CIF, DDU and DDP.
Let us help you find the best solution for all your concerns.
Guardians of Underground Safety In underground mining, tunnel excavation, and slope stabilization projects, the stability of rock strata serves as the lifeline of construction operations. Faced with complex surrounding rock environments, a support material known as the Split Set Bolt (or Friction ...
1. Direct Energy Transfer (The "No-Loss" Advantage) When a rock drill strikes the end of a rod, it creates a shockwave. In "threaded" systems, some of this energy is lost or converted into heat at the coupling joints. The Integral Advantage: Because the rod and bit are forged from a single piece of ...
Drill bits, drill rods, and shank adapters are core accessory components in rock drilling operations, mining, and tunneling projects. Working in synergy, these three elements directly influence drilling efficiency, equipment stability, and service life. To help customers better understand product ...
Pneumatic leg rock drill,also known as pneumatic jackhammer,is a multifunctional tool widely used in various industries such as mining,construction and quarrying.It is mainly used for drilling holes in rock,concrete and other hard materials.The following is mainly the structure of the pneumatic leg ...
In top hammer drilling, dome reaming bits and pilot reaming bits serve specific functions in the drilling process. Here are the key differences in their functions and applications: pilot Reaming Bit: Function: The pilot reaming bit in top hammer drilling is primarily designed to create the initial ...
Coal drill is divided into dry type and wet type two,specifications: 28mm/30mm/32mm/42mm/43mm, etc. : drilling speed, drilling range is wide, saving time, labor, simple connection, durable and other advantages.The wind drill, also known as the drill head, has a font, column teeth, cross, horseshoe ...
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