The high-pressure sealed British-style drill pipe, made from R780 alloy steel and vacuum-tempered 42CrMo joints, excels in transmitting torque, speed, and high-pressure water for coal mine gas drainage and water probing holes, ensuring excellent sealing and durability in underground operations.
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Product Name: External Flat Drill Pipe
Product Model:
Place of Origin: Shanxi, China
The external flat drill pipe is a drilling tool commonly used in geological exploration and coal mine drilling operations. Its distinctive feature is the flat outer surface of the rod body, which facilitates connection and torque transmission. It is typically used together with drilling rigs, drill bits, and other equipment, and is widely applied in underground coal mine gas drainage, water probing, anti-outburst operations, rock drilling, and hydraulic engineering projects.
Product Features:
High-Quality Materials:
The rod body is made from high-performance alloy steel (such as R780), offering high strength and excellent fatigue resistance.
The joints are made from premium alloy structural steel (e.g., 42CrMo) and undergo vacuum quenching treatment to enhance wear resistance and shear strength.
Advanced Manufacturing Process:
Friction welding technology ensures high-strength connections between the joints and the rod body.
CNC machining equipment is used for precise dimensions and consistent product quality.
Structural Advantages:
The flat outer surface allows for easy mechanical clamping and efficient torque transfer.
Excellent sealing performance makes it suitable for drilling operations using high-pressure water circulation systems.
Application Range:
Gas drainage holes in underground coal mines
Water detection and anti-outburst hole construction
Rock drilling and coring operations
Hydraulic engineering and geological survey projects
Technical Specifications:
Diameter: Φ50mm, Φ63.5mm, Φ73mm
Length: 800mm – 1500mm
Production Process: Friction Welding
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![High Pressure Seal British-style Drill Pipe]()
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![British-style Drill Pipe]()
The British-style drill pipe, made from high-quality R780 alloy steel and 42CrMo joints with vacuum-treated durability, offers high strength and long life, ideal for coal mines, gas drainage, water probing, and geological drilling applications.More -
![External flat geological drill pipe]()
The external flat and British-style geological drill pipe, made from high-quality alloy steel and featuring friction-welded joints, offers high strength, durability, and efficient torque transmission, widely used in coal mines, gas drainage, water probing, and geological exploration.More
