Deep Exploration 139mm API Rc Drill Bit
Brand Name:MIROC
Certification:ISO9001:2015
Model Number:RE 350 Hammers
Minimum Order Quantity:5PCS
Delivery Time:10-25Days
Payment Terms:L/C, D/P, T/T, Western Union, MoneyGram, D/A
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Beijing Beijing China
Address:
Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
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within 28 hours
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Product Details
For Deep Exploration Drilling Reverse Circulation Rock Drill Tools 139mm RC Drill Bit
Product Description
Reverse circulation is achieved by blowing air down the annulus of the rod, the differential pressure creating air lift of the water and cuttings up the inner tube which is inside each rod. It reaches the deflector box at the top of the drill string then moves through a sample hose which is attached to the top of the cyclone.
The drill cuttings travel around the inside of the cyclone until they fall through an opening at the bottom and are collected in a sample bag. For any drill hole there will be a large number of sample bags, each one marked to record the location and drilling depth that the sample was obtained.
The collected series of sample bag cuttings are later taken for analysis to determine the mineral composition of the drill hole. The analysis results of each individual bag represents the mineral composition at a particular sample point in the drill hole. Geologists can then survey the drilled ground analysis and make decisions about the value of the overall mineral deposit.
Specification of Reverse Circulation Hammer and Bits:
| P/N | Outside dia.(mm) | Hammer Length without bit(mm) | Drilling dia. | Sample Tube Dia. (mm) | Working Pressure (Mpa) | Top sub thread | Air consumption (M3/Min) | Weight (kg) |
| RC335 | Φ90 | 991 | 95-110 | 30 | 0.7-2.1 | T 2 3/8 Box | 4.2-14 | 30 |
| RC345 | Φ105 | 1038 | 115-130 | 36 | 0.7-2.1 | T 2 7/8 Box | 4.5-20 | 41 |
| RC350 | Φ116 | 765 | 127-140 | 30 | 0.7-2.4 | T 3 1/2 Box | 6-20.6 | 48 |
| RC355 | Φ124 | 765 | 133-152 | 36 | 0.7-2.4 | T 4 Box | 6-21.5 | 60.5 |
| RC365 | Φ154 | 795 | 159-203 | 61 | 0.7-2.4 | T 4 5/8 Box | 7-25.5 | 89 |
| RC385 | Φ190 | 795 | 203-241 | 61 | 0.7-2.4 | T 6 Box | 10-30.5 | 167 |
| RC3100 | Φ230 | 814 | 241-311 | 76 | 0.7-2.4 | T 6 5/8 Box | 15-34 | 263 |
| RC3120 | Φ285 | 781 | 311-350 | 85 | 0.7-2.4 | T 8 5/8 Box | 20-37.8 | 423.5 |
Contact Person: Tina Yan
Mobile/Whatsapp/Wechat: +86-15035768372
Skype: myqueen323
Deep Exploration 139mm API Rc Drill Bit
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