Threaded Extension Drill Rods
Thread extension steel bars are used for rock drilling and include extension rods and MF rods. These threaded drill rods connect with top hammer rock drill rigs via shank adaptors and couplings, and with drill bits via threads.
Technical Specifications
Product Overview
Professional Rock Drilling Solutions
Threaded extension drill rods are essential components for top hammer rock drilling, designed to provide high fatigue strength, elasticity, and rigidity. These rods facilitate efficient energy transmission during deep or shallow hole drilling, featuring versatile thread connections and robust hollow body construction. Engineered for reliability, they integrate seamlessly with shank adapters and drill bits to optimize drilling performance in mining and construction applications.
Technical Specifications
Body Shapes
- Hollow Round
- Hollow Hexagonal
Diameter Variants
OD32OD38HEX32HEX35
- Thread Connections
- R22R25R32R38T38T45T51
- Available Lengths
- 600 - 6400mm
Performance Features
Performance Advantages
1
High Drilling Efficiency
1
Low Energy Transmission Loss
1
High Fatigue Strength
