T45 76mm Retrac Button Bit Tungsten Carbide Threaded Rock Drill Bit for Mining Quarrying Tunneling
Product Introduction
The T45 76mm Retrac Button Bit is a threaded top hammer rock drilling bit designed for mining, quarrying, tunneling, bench drilling, underground long-hole drilling and other demanding rock drilling applications. Featuring a T45 threaded connection, a 76 mm drilling diameter and a Retrac skirt design, it provides reliable drilling performance in medium to hard rock formations.
The Retrac skirt design is particularly useful in fractured, fissured and broken rock formations, helping improve drill-bit retrieval and reduce the risk of sticking during drilling. T45 76mm Retrac button bits are available with different tungsten carbide button configurations, face designs and flushing-hole arrangements to match specific drilling conditions. The bit can be supplied with spherical, ballistic or other carbide button configurations according to rock hardness, abrasiveness, drilling equipment and customer requirements.
Key Features & Advantages
- T45 Thread Connection — Designed for compatible T45 top hammer drilling systems.
- 76 mm Diameter — Approx. 3-inch drilling diameter.
- Retrac Skirt Design — Helps improve bit retrieval in fractured and broken rock.
- Tungsten Carbide Buttons — Provides good penetration and wear resistance.
- Multiple Button Configurations — Suitable for different rock conditions.
- Efficient Flushing — Helps remove drilling cuttings.
- Strong Alloy Steel Body — Designed for demanding drilling environments.
- Top Hammer Drilling — Suitable for compatible top hammer equipment.
- Bench Drilling — Suitable for quarry and surface mining applications.
- Long-Hole Drilling — Suitable for underground mining applications.
- OEM Customization — Button layout and flushing design can be customized.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | T45 76mm Retrac Button Bit |
| Product Type | Retrac Threaded Button Bit |
| Thread Type | T45 |
| Bit Diameter | 76 mm |
| Equivalent Diameter | 3 inch |
| Drilling Method | Top Hammer Drilling |
| Skirt Design | Retrac |
| Carbide Material | Tungsten Carbide |
| Button Type | Spherical / Ballistic / Customized |
| Face Design | Flat Face / Drop Center / Uniface |
| Gauge Buttons | 8 × 12 mm |
| Front Buttons | 4 × 12 mm |
| Front Flushing Holes | 2 |
| Side Flushing Holes | 1 |
| Weight | Approx. 2.2 kg |
| Bit Body Material | High-Strength Alloy Steel |
| Application | Mining, Quarrying, Tunneling, Long-Hole Drilling |
| Rock Formation | Medium to Hard / Fractured / Broken Rock |
| Connection | T45 Thread |
| OEM Service | Available |
| Customization | Available |
Applications
- Mining — Top hammer drilling in surface and underground mining operations.
- Quarrying — Quarry bench drilling, rock excavation and dimensional stone-related drilling.
- Underground Long-Hole Drilling — Used with compatible extension drilling systems for underground long-hole drilling.
- Bench Drilling — Suitable for bench drilling where a 3-inch drilling diameter is required.
- Tunneling & Drifting — Useful when drilling through fractured or broken rock formations.
Rock Formation Recommendation
| Rock Condition | Recommended Use |
|---|---|
| Medium Rock | Suitable |
| Hard Rock | Suitable |
| Fractured Rock | Particularly suitable |
| Fissured Rock | Particularly suitable |
| Broken Rock | Retrac design recommended |
| Abrasive Rock | Use suitable gauge-button configuration |
| Loose Formation | Retrac design can assist bit retrieval |
FAQ
What is a T45 76mm Retrac Button Bit?
It is a threaded top hammer rock drilling bit with a T45 connection, 76 mm diameter and Retrac skirt design, used for mining, quarrying, bench drilling, underground long-hole drilling and tunneling.
What is a T45 Retrac Button Bit used for?
It is mainly used for top hammer rock drilling in mining, quarrying, tunneling, bench drilling and underground long-hole drilling.
What is the diameter of a T45 76mm Retrac Bit?
The bit has a 76 mm diameter, equivalent to approximately 3 inches, a standard T45 Retrac size.
What is the advantage of the Retrac design?
The Retrac skirt helps improve drill-bit retrieval and reduces the risk of sticking when drilling in fractured, fissured, broken or unstable rock formations.
Can the T45 76mm Retrac Bit be customized?
Yes. The button configuration, carbide button size, face design, flushing-hole arrangement and skirt design can be customized according to drilling equipment and rock conditions.
Get in Touch
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