down-the-hole drilling rig for confined mining sites

The down-the-hole drilling rig is an efficient drilling device that can be equipped with either diesel or electric power, making it suitable for perforation operations in confined spaces and complex environments. Its compact structure and flexible mobility are especially ideal for mining, tunnels, and various engineering fields, meeting the demands of special conditions such as cold and high-altitude areas.

Description

The Down-the-Hole Drilling Rig

The down-the-hole drilling rig is a highly efficient drilling device compatible with multiple power systems to meet the operational needs of various mines and engineering projects. It can be equipped with a diesel power unit for convenient site transfer, or powered by electricity for greater energy efficiency and environmental performance. Featuring a low-profile feed mechanism, the rig is well-suited for drilling operations in confined spaces, offering strong adaptability.

Features of the Down-the-Hole Drilling Rig

  • Versatile Power Options: Flexible choice of diesel or electric power to accommodate different operational and environmental requirements.
  • Low-Profile Design: Reduced feed height allows construction in low and narrow spaces, expanding application scenarios.
  • Adaptability to Cold and High-Altitude Conditions: Dedicated system solutions ensure stable operation in extreme climates and high-altitude environments.
  • Optional Bidirectional Shock-Absorbing Power Head: Flexible coupling effectively isolates vibration, enhancing overall operational reliability.
  • Optional New Dust Cover: Innovative structural design with double sealing and elastic ground contact effectively prevents rock debris from splashing, improving safety.

Application Fields

This drilling rig is widely used in mining, foundation engineering, and tunnel excavation, especially in sites with limited space or harsh environments. With customized solutions for cold and high-altitude regions, the down-the-hole drilling rig can meet the demands of drilling operations under special conditions.

Technical Parameters
down-the-hole drilling rig for confined mining sites
Item Unit BY-MD221
Air Pressure Mpa 0.6 to 2.4
Drill Diameter mm 76 to 165
Drilling Depth m 0 to 100
Angle -10 to 90
Rated Torque kN.m 4.5
Peak Torque kN.m 7.2
Rotation Speed rpm 0 to 28
Feed Force kN 0 to 81
Retract Force kN 0 to 81
Feed Stroke mm Standard: 1865, Optional: 1365
Travel Speed km/h 0 to 2.5
Maximum Gradeability 14
Ground Clearance mm 209
Voltage V Standard: 380 (Optional: 660/1000/1140)
Motor Power kW 22
Diesel Power kW 36