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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Location: Beijing Beijing China
Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
Supplier`s last login times: 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/NOutside 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)

RC335Φ9099195-110300.7-2.1T 2 3/8 Box4.2-1430
RC345Φ1051038115-130360.7-2.1T 2 7/8 Box4.5-2041
RC350Φ116765127-140300.7-2.4T 3 1/2 Box6-20.648
RC355Φ124765133-152360.7-2.4T 4 Box6-21.560.5
RC365Φ154795159-203610.7-2.4T 4 5/8 Box7-25.589
RC385Φ190795203-241610.7-2.4T 6 Box10-30.5167
RC3100Φ230814241-311760.7-2.4T 6 5/8 Box15-34263
RC3120Φ285781311-350850.7-2.4T 8 5/8 Box20-37.8423.5

Contact Person: Tina Yan

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China Deep Exploration 139mm API Rc Drill Bit supplier

Deep Exploration 139mm API Rc Drill Bit

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