Material DCDMA Standard Wireline Core Drilling Rods BWL NWL HWL PWL

Brand Name:SINOCOREDRILL
Certification:CE
Model Number:BWL NWL HWL PWL
Minimum Order Quantity:N/A
Delivery Time:1 week
Payment Terms:T/T
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Superior Grade Material DCDMA Standard Wireline Core Drilling Rods BWL NWL HWL PWL

Sinocoredrill Wireline Drill Rods are made of high quality carbon seamless steel tubes with high mechanical properties. All wireline drill rods are fully heat treated, case hardened at two ends till 50 to 55 HRC hardness to protect thread connection and increases its’ wear resistance and drill rod life.


General characteristic:
Good concentricity
High precision
Well wear resistance
Long drilling life

  • Cold-drawn seamless steel tubing of very high mechanical resistance, a steel of exceptional performance unequaled on the market.
  • This exceptional mechanical resistance is on the full length of the rods.
  • Straightness and Hoop Stress controlled tubing.
  • Surface treatment on pin threads to prevent galling.


Sizes: AQ, BQ, NQ, HQ, PQ, NT, HT, PT, AW, BW, NW, AWJ, BWJ, NWJ
Length: 1.0M, 1.5M, 2.0M, 3.0M etc


Q series wireline drill rods specifications:


Size


O.D


I.D


Weight (kg/3m)


Desc

AQ44.5mm34.9mm14.0Entire length heat treated, case hardened at two ends
BQ55.6mm46.1mm18.0
NQ69.9mm60.3mm23.5
HQ88.9mm77.8mm34.5
PQ114.3mm101.6mm

52.2



Performance Rating:

NameRated PullbackRated TorqueThreaded connection tightening torque ,NmMaximum torque NmMaximum drilling depth m
Min Max
BWL130kN800Nm405 5504501500
NWL250 kN2000 Nm600 7506001500
HWL250 kN2000 Nm1010 135010801200
PWL450kN4000Nm1010 35002950900



Mechanical Properties:

NameTensile Strength:Yield Strength :

Elongation
(%):

Tooth angleHardness
BWL990 Mpa870 Mpa17%29ºHRC28-32
NWL983 Mpa895 Mpa19%29ºHRC28-32
HWL960 Mpa855 Mpa18.5%29ºHRC28-32
PWL1050 Mpa930 Mpa14.5%29ºHRC28-32



Wireline core drilling useage steps:

1. To mount drill rods, bits, and core barrel etc drilling tools with a diamond drill rig.
2. To utilize a diamond drill bit attached to the end of drill rods to cut a cylindrical core of solid rock.
3. To retrieve the core samples to the surface by retracting the winch cable which located on the top end of the core barrel, lowered inside the rod string.
4. To remove the core sample from the core barrel, break it into small pieces to make it fit into the sample trays and catalogue.

China Material DCDMA Standard Wireline Core Drilling Rods BWL NWL HWL PWL supplier

Material DCDMA Standard Wireline Core Drilling Rods BWL NWL HWL PWL

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