Contact Platform Support
Help CenterGood Quality Eccenetric Overburden Rock Air Drilling Tools(NOD190)
Related Products
-
Eccenetric Overburden Rock Air Drilling Tools(NOD280)/rock Drill BitUS$ 400 - 1,250MOQ: 2 Pieces -
Eccenetric Overburden Drilling Equipment NOD165US$ 400 - 1,100MOQ: 2 Pieces
-
Good Quality Eccenetric Overburden Rock Air Drilling Tools(NOD190)/rock Drill BitsUS$ 100 - 600MOQ: 2 Pieces
-
Eccenetric Overburden Rock Air Drilling Tools(NOD280)US$ 400 - 1,250MOQ: 2 Pieces
-
Eccenetric Overburden Rock Air Drilling Tools(NOD280)/mining MachineUS$ 400 - 1,250MOQ: 2 Pieces
Specifications
Overburden Drilling1.Efficient energy transfer
2.Faster drilling speed
3.Lower oil consumption
4.Longer life,less fail
Eccentric Overburden Drilling Equipment:
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
Eccentric Reamer System Step-by-step
1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly.
2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in , allowing the drill bit assembly to be pulled up through the casing.
3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.
4. Drilling continues to the desired depth in the bedrock using a conventional drillstring.
NOD190 Eccentric Overburden Drilling Equipment
|
1 |
Casing Tube |
Maximum O.D.: 222mm Minimum O.D.: 205mm |
2 |
Drill Pipe |
Connection Thread: API3 1/2”Reg O.D.: 114mm Wrench Flats: 95mm |
|
3 |
Guide Sleeve |
Effective length: 285mm |
|
4 |
DTH-Hammer |
ND65, Cop64, SD6, DHD360, QL60 |
|
5 |
Casing Shoe |
L3=110mm L4=70mm D3=204.5mm D4=193mm |
|
6 |
Guide Device |
L1=62.5mm L2=184.5mm D1=191mm D2=203mm |
|
7 |
Reamer |
D5=185.5mm L5=90.2mm Reaming Diameter: 237mm Reamer has 7*16mm buttons |
|
8 |
Pilot Bit |
D6=190mm L6=82mm Gauge button: 9*18mm
Face button:9*16mm |
Technical Data
Send Inquiry to This Supplier
You May Also Like
-
Chrome Molybdenum Crusher Hammer With 200+ Hours LifespanNegotiableMOQ: 1 Piece
-
ASTM G65 Wear Resistant Liner Bimetal Alloy Steel Overlay PlateUS$ 299.69 - 299.69MOQ: 1 Square Meter
-
Drilling Equipments Drilling Fluids Vacuum DegasserNegotiableMOQ: 1 Set
-
Good Quality Tungsten Carbide Button InsertsUS$ 1 - 5MOQ: 100 Pieces
-
Airless Truck Tire Solid Vehicle Tire 17.5-25 20.5-25 for Mining Machine PartsUS$ 16 - 200MOQ: 1 Piece
-
Ball Mill Plant Used Automatic Feeding Electromagnetic Vibrating FeederUS$ 650 - 800MOQ: 1 Set
-
API 16A Cameron/shaffer Type Single Ram BOP Manual for Oilfield DrillingUS$ 100000.00 - 100000.00MOQ: 1 Set
-
High QualityBearing Seat Sodium Ductile Iron Pipe Clampsductile Iron CastingUS$ 0.8 - 1.3MOQ: 1 Metric Ton
-
Silicon Bouncing Ball for Vibro SifterUS$ 0.5 - 0.8MOQ: 200 Pieces
-
Wear Resistant Jaw Crusher Toggle Plate Whatsapp008615290435825US$ 1 - 500MOQ: 100 Pieces
