T51 127mm Retract Thread DTH Hammer Button Bits - 35° Angle for Mining & Quarrying Drilling
Price:
9-99999USD/PC
MOQ:
1PC
Delivery Time:
3-5WEEKS
Brand:
MING
Product Description
T51 127mm Retract Thread DTH Hammer Button Bits
Product Overview
Professional T51 diameter 127mm retract thread top hammer drilling tools designed for efficient rock drilling operations in mining, quarrying, and construction applications.
Key Specifications
- Product Category: DTH Thread Button Drill Bit
- Matched Connection: T51 System
- Primary Diameter: 127mm (5")
- Available Diameters: 89mm, 102mm, 115mm, 127mm, 140mm, 152mm
- Skirt Body Options: Retract and Normal
- Face Designs: Flat, Concave
- Carbide Insert Shapes: Spherical, Ballistic, Semi-ballistic
Technical Parameters
| Bit Type | Diameter (mm/in) | Front Buttons | Gauge Buttons | Angle | Flushing Holes |
|---|---|---|---|---|---|
| Button Bit, Flat Face | 89mm (3 1/2") | 5x12mm | 8x12mm | 35° | Front: 2, Gauge: 2 |
| Button Bit, Flat Face | 89mm (3 1/2") | 6x12mm | 8x12mm | 35° | Front: 2, Gauge: 2 |
| Button Bit, Flat Face | 102mm (4") | 4x14mm | 8x14mm | 35° | Front: 2, Gauge: 2 |
| Button Bit, Retrac, Drop Center | 127mm (5") | 7x14mm | 8x16mm | 35° | Front: 4, Gauge: - |
| Button Bit, Retrac, Drop Center | 140mm (5 1/2") | 7x16mm | 8x16mm | 35° | Front: 4, Gauge: - |
| Button Bit, Retrac, Drop Center | 152mm (6") | 8x16mm | 8x16mm | 35° | Front: 4, Gauge: - |
Top Hammer Drilling Features
- Optimal for hole diameters between 25-127mm
- Maximum hole depth typically less than 25 meters
- Designed for stable and uniform hard rock conditions
- Compatible with compressed air or water flushing media
- High efficiency in shallow hole drilling applications
- 35° button angle for optimal rock penetration
Applications
- Mining and quarrying drilling operations
- Mining exploration and geological surveying
- Piling and foundation construction drilling
- Water well drilling and development
- Geothermal energy drilling systems
- Horizontal directional drilling projects
- Dimensional natural stone quarrying operations
Frequently Asked Questions
What is top hammer drilling?
In Top Hammer Drilling, the hammer produces percussive force on the drill rods or tubes, which transmits to the drill bit. The feed device attaches with a hinged boom to a mobile drilling unit.
Top hammer drilling vs down-the-hole drilling?
The primary difference is hammer placement. DTH drilling positions the hammer at the bottom contacting the bit, while top hammer concentrates activity at the top of the drill string.
How does Top Hammer Drilling work?
The percussive force from the hydraulic drilling rig's piston transmits to the drill bit via shank adaptor and drill pipe. The percussion system drives rotation, and when stress waves reach the drill bit, energy transfers to the rock as penetration. Air compressors handle dust removal and slagging.
What is DTH in mining?
Down-the-hole drilling (DTH) positions the drilling hammer at the bottom of the drill string, relying on bit loading, rotation, and air for efficient rock crushing.
Product Images
Ordering Information
Order Guide: Specify Diameter + Thread + Skirt Shape + Face Design + Insert Shape for complete product configuration.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuhan Kingdrilling Diamond Co.,Ltd
Location
1-2-905 California Sunshine, Optical Valley Street,Wuhan 430074, China
Contact Person
Wendy Chen