Tungsten Carbide Threaded Rock Bit R25 75mm Retrac Button Bit for Quarrying Mining Tunneling
Product Introduction
The R25 75mm Retrac Button Bit is a threaded top hammer rock drilling bit engineered for mining, quarrying, tunneling and construction applications. The Retrac skirt design reduces the risk of bit jamming and improves drill string retrieval in loose, fractured and broken rock formations.
With a durable high-strength alloy steel body and tungsten carbide buttons, this R25 Retrac button bit provides reliable rock penetration, good wear resistance and stable drilling performance. The 75 mm diameter configuration suits applications requiring a larger borehole while retaining the advantages of R25 threaded drilling tools.
The bit can be supplied with different button configurations and face designs according to drilling conditions, including spherical or ballistic carbide buttons and suitable flushing-hole arrangements.
Key Features
- Retrac Skirt Design — Reduces the risk of bit jamming and improves drill string retrieval in loose, fractured and broken rock.
- 75 mm Drilling Diameter — Provides a larger borehole for mining, quarrying and tunneling applications.
- Tungsten Carbide Buttons — Deliver reliable rock penetration and good wear resistance.
- High-Strength Alloy Steel Body — Ensures durability and stable drilling performance in demanding conditions.
- Customizable Configuration — Button layout, face design and flushing-hole arrangement can be tailored to drilling requirements.
- R25 Threaded Connection — Compatible with standard R25 threaded drill rods and top hammer drilling systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | R25 75mm Retrac Button Bit |
| Product Type | Retrac Threaded Button Bit |
| Thread Type | R25 |
| Bit Diameter | 75 mm |
| Drilling Method | Top Hammer Drilling |
| Bit Design | Retrac |
| Carbide Material | Tungsten Carbide |
| Button Shape | Spherical / Ballistic / Customized |
| Bit Face | Flat Face / Other Options |
| Flushing Holes | Customized According to Design |
| Bit Body Material | High-Strength Alloy Steel |
| Application | Mining, Quarrying, Tunneling, Drifting |
| Rock Formation | Loose, Fractured, Fissured and Broken Rock |
| Connection | R25 Threaded Connection |
| Customization | Button Layout, Face Design and Flushing Configuration |
| Manufacturing | CNC Machining / Heat Treatment / Carbide Button Insertion |
Applications
- Mining — Drifting and blast-hole drilling in surface and underground mining.
- Quarrying — Production holes and blast holes in quarry operations.
- Tunneling — Underground drilling where an R25 top hammer system is used.
- Construction — Foundation and infrastructure rock drilling.
- Drifting — Horizontal underground development in rock excavation.
FAQ
What is an R25 75mm Retrac Button Bit?
It is a top hammer threaded rock drilling bit with an R25 connection and a Retrac skirt design, mainly used for rock drilling in mining, quarrying, tunneling and construction, especially in loose, fractured or broken rock formations.
What is an R25 Retrac Button Bit used for?
R25 Retrac Button Bits are used for top hammer rock drilling, drifting, tunneling, quarrying, mining and blast-hole drilling. The Retrac design is particularly useful where loose or fractured rock may cause drilling tools to become stuck.
What is the advantage of a Retrac drill bit?
The main advantage is the Retrac skirt design, which facilitates retrieval of the drill string and reduces the likelihood of the bit becoming stuck or buried in loose and broken formations.
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