Active Member
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[China]
Address: Room1007 Shan Hu Ge Builing,Robinsin Galleria 895, Xia He Road, Xiamen, China
Contact name:Simon Hu
Xiamen Prodrill Equipment Co., Ltd |
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1) Specific heat treatment standards
2) Premium hardened steel alloy
3) High-grade cemented tungsten carbide buttons.
4) Certification: GB/T 19001-2008/ISO 9001: 2008
1. Introduction and
Description:
What is ?
Introduction: DTH is short for "down-the-hole".
DTH Drill Bits are produced from premium quality nickel-alloy steel
for increased durability and wear characteristics. Specific heat
treatment standards and special "stress relief" processes ensure
consistent performance. DTH hammer bits are designed for
maximum performance and hole cleaning ability and high penetration
rate.
"Down-the-hole" (DTH) drill bits are used with "Down-the-hole"
hammers for drilling holes through a wide range of rocks types. In
conjunction with DTH hammers, drill bits are designed with a
splined drive for rotating the bit in the ground. Drill bits are
available in different sizes and different styles so they can drill
a wide range of hole sizes.
All Prodrill's DTH drill bits are also CAD designed, CNC
manufactured for perfect bits body, and multiple heat-treated to
enhance hardness, surface-compressed for fatigue resistance, all
thus to extend the product life for maximum wear and performance in
the toughest of drilling conditions.
Application: The down-the-hole drilling tool is used to drill
large-diameter holes in rocks, usually in the initial stage prior
to blasting, but it is also used in non-blasting application.
DTH drilling are used mostly in mining quarries, but can be used in
a variety of other construction application.
The DTH drilling method is growing in popularity, with the increase
in all application segments, including blast-hole, water well,
foundation, oil & gas, cooling systems and drilling for heat
exchange pumps.
Applications were later found for the underground DTH method, where
the direction of drilling is generally upwards instead of
downwards.
Description:
| Product Name: | DTH drill bits |
| Description: | DTH drill bits are used for blast hole drilling and water well
drilling projects. Working with DTH hammer, mainly applied in Mining, Marble quarry or well drilling and other construction projects. |
| Material: | High quality carbide + High quality carbon steel |
| MOQ: | 5pcs |
| Compatibility Series: | COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc |
2. Technical Specification
| Specification: | Diameter: (mm) | Weight: (kg) |
| Low air pressure DTH bits CIR type | 68 ~ 200 | 2.6 ~ 48 |
| Middle air pressure BR & COP type | 76 ~ 110 | 3.8 ~ 15 |
| 3 inch high Air pressure DTH bits | 85 / 90 / 95 / 100 / 105 | 4.2 ~ 5.5 |
| 4 inch high Air pressure DTH bits | 105 / 110 / 115 / 120 / 127 | 9 ~ 12 |
| 5 inch high Air pressure DTH bits | 133 / 140 / 146 / 152 / 165 | 15 ~ 18.5 |
| 6 inch high Air pressure DTH bits | 152 / 165 / 178 / 190 / 203 | 26 ~ 36 |
| 8 inch high Air pressure DTH bits | 195 / 203 / 216 / 254 / 305 | 33 ~ 95 |
| Specification: | Weight (kg) | External Diameter (mm) | Connection thread | Hole rang (mm) | Impact rate | Recommended rotation speed |
| 3 inch DTH hammer COP34/QL30 etc | 24.5 | 81 | API 2 3/8" Reg | 90~110 | 28Hz (at 17 bar) | 28 r/min |
| 4 inch DTH hammer COP44/DHD340 etc | 39.2 | 99 | API 2 3/8" Reg | 110~150 | 27Hz (at 17 bar) | 25~40 r/min |
| 5 inch DTH hammer COP54/Mission50 etc | 71.5 | 125 | API 2 3/8" or API 3 1/2" Reg | 135~165 | 25Hz (at 17 bar) | 20~30 r/min |
| 6 inch DTH hammer COP64/QL60 etc | 98 | 142 | API 3 1/2" Reg | 152~216 | 23Hz (at 17 bar) | 15~25 r/min |
| 8 inch DTH hammer COP84/SD8 etc | 188 | 180 | API 4 1/2" Reg | 203~305 | 20Hz (at 17 bar) | 15~ |
How to order?
Shank Type + Top Sub Thread + (With/Without Valve, if this parameter is optional)
3", 4", 5", 6", 7", 8", etc.. you can choose bits equiped with
related hammer)
Ps.: Other rock drill: besides Down-The-Hole tools, we also
supply following rock drilling tools:
Construction & Mining & Rock Drill Tools:
A. DTH Hammer and Bit (drill hole dia.: 76 ~ 381mm),
Overburden Drilling System;
B. Top Hammer (drill hole dia.: 33 ~ 152mm):
Thread Tools (Button Bits, Rod, Coupling, Shank Adaptor):
(R25/28/32/38, T38/45/51, ST58)
C. High Rang Soundless Cracking Agent (dia. 40 ~ 50mm): break
rock or reinforced concrete with silent.
2. Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality
against the small factory
3. About Us:
1. Our factory has been specialized in
manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's
professional working experience.
4. Rock drilling tools are exported throughout
the world. Main market: Norway, Turkey, USA, Canada, Australia,
Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.
