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| Categories | Grain Thresher |
|---|---|
| Brand Name: | Kinglong drilling |
| Model Number: | Down the Hole DTH bits |
| Certification: | ISO9001 |
| Place of Origin: | China |
| MOQ: | 5pcs |
| Price: | negotiable |
| Payment Terms: | T/T, Western Union |
| Supply Ability: | 5000pcs per month |
| Delivery Time: | 5 work days |
| Packaging Details: | wooden package |
| type: | down the hole bit |
| Heat treatment:: | hot press insert |
| Formation: | Hard Formations |
| Bit face:: | Flat face , Concave face , Convex face |
| Use: | Ore mining . Rock drilling , Water well |
| Machine type: | Drilling Tool |
| Processing type: | Forging |
| Color: | Customized,Gold |
| Warranty: | 1 Year |
| Condition: | New and customizable |
This DHT bits ( down to the hole bits ) is widely applied for open mining, quarry mining, earth excavation, water conservancy and hydropower, highway bridge blasting hole blasting engineering field
DTH Bits for Shank Hammer Model-Foot Valve
Ingersoll-Rand
DHD3.5 Bits Dia: 90mm-102mm.
DHD340 Bit Dia: 105mm-127mm.
DHD350 Bit Dia: 133mm-152mm.
DHD360 Bit Dia: 152mm-216mm.
DHD380 Bit Dia: 203mm-254mm.
QL40 Bit Dia: 105mm-127mm.
QL50 Bit Dia: 133mm-152mm.
QL60 Bit Dia: 152mm-216mm.
QL80 Bit Dia: 203mm-254mm.
Hammer Model
SD4 Bit Dia: 105mm-127mm.
SD5 Bit Dia: 133mm-152mm.
SD6 Bit Dia: 152mm-216mm.
SD8 Bit Dia: 203mm-254mm.
Atlas Hammer Model
COP32 Bit Dia: 90mm-102mm.
COP42 Bit Dia: 105mm-127mm.
Specification
| Bit size | Shank type | Recommended DTH bir diameter |
| 3.5''/3'' DTH Hammer bits | COP34, DHD3.5, MISSION30, BR3 shank | 90mm to 105mm |
| 4'' DTH Hammer bits | DHD340, QL40, MISSION40, SD4 shank | 110mm to 130mm |
| 5'' DTH Hammer bits | DHD350, QL50, MISSION50, SD5 shank | 134mm tio 152mm |
| 6'' DTH Hammer bits | DHD360, QL60, MISSION60, SD6 shank | 152mm to 203mm |
| 8'' DTH Hammer bits | DHD380, QL80, MISSION80, SD8 shank | 203mm to 305mm |
| 12'' DTH Hammer bits | DHD112, SD12 and QL120 shank | Available upon to customers' request |
Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers .
DTH button bits
| 5 inches DTH hammer button bits | ||||||
| Shank style | Diameter in mm | Flat face | Convex face | Concave face | Approx. weight | Part number |
DHD350R | 135 | √ | √ | √ | 16.2 kgs | DHD350-135 |
| 140 | √ | √ | √ | 16.5 kgs | DHD350-140 | |
| 146 | √ | √ | √ | 17.0 kgs | DHD350-146 | |
| 152 | √ | √ | √ | 17.8 kgs | DHD350-152 | |
| 165 | √ | √ | √ | 18.5 kgs | DHD350-165 | |
Different face style makes DTH bits suitable for various rock conditions.
Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.
Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.
Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.
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