DCDMA W Thread / Premium WT Thread Pipe Casing for exploration core drilling
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DCDMA W Thread / Premium WT Thread Pipe Casing for exploration core drilling
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Features
Basic Infomation
Place of Origin: Germany
Brand Name: ROSCHEN
Certification: ISO, API, CE
Model Number: AW, BW, NW, HW, HWT, PW, PWT, SW, UW, ZW, RW, EW, NMLC, HMLC, LTK48, LTK60, BGM, NGM, ADBG, TBW, TNW, ATW, BTW, NTW, NXD3, AX, NX, NXC, AXT, T6H, 4 9/16, NWD4, 412F, SK6L146, TT46, TB56, TS116, CHD101.
High Light:

Steel Casing Pipe

,

Drill Pipe Casing

Payment & Shipping Terms
Packaging Details: Polywooden packing box
Delivery Time: 15 days
Payment Terms: T/T, L/C at sight
Supply Ability: 2000pcs per week
Specifications
Series: Wireline Diamond Core Bits
Model: Impregnated Diamond Core Bits
Drilling: Exploration Core Drilling
Drills: Wireline Core Drilling
Mining: Australia Mining
Exploration: Australia Exploration
Model No: Mining Exploration Core Drilling
Usage: Africa Mining
Applications: Copper Mining Drilling
Product Description

DCDMA W Thread / Premium WT Thread Pipe Casing for exploration core drilling

 

 

Quick Detail:  

 
W Casing

WT Casing

Metric Casing

W Series DCDMA

 


Description:


Casing

Roschen manufactures and distributes Industry-standard DCDMA W thread and premium WT thread.

 

W

This casing is intended for single use application, or situations where the casing is left in the hole. The W casing is made from DCDMA C80 tubing and utilizes the DCDMA W thread form. Featuring a straight thread, this universal casing design can be used in any drilling application where threaded casing is required to be left in the ground. 

 

Tubing 

Parallel wall tubing is compatible with Q/E wireline in-hole tools, and standard DCDMA W sizes allow nesting of other W casing. 

 

Thread design

Double-butt joint provides strength in driving and jarring.

 

WT 

This casing is engineered to surpass expectations and features quicker and easier make and break characteristics than the standard W casing. This thread works well under difficult drilling conditions and is designed for repeated application. The WT casing is made with DCDMA C80 tubing and the tapered HD thread provides increased strength. 


 

Tubing

Parallel wall tubing is compatible with Q/E wireline in-hole tools, and standard DCDMA W sizes allow nesting of other W casing. 


 

Thread design 

Compatible with HD rod threads.

Tapered joint and fewer threads per inch result in easier and faster make and break for reduced wear and reduced labor costs.

Double-butt tapered joint and heavy duty buttress thread form provide greater torsion and pullback strength.

Tapered thread reduces stress and provides a rigid joint to reduce movement and lubricant loss.

Load efficiency of 40% provides greater pullback strength to allow retrieval from difficult ground conditions and repeated use.

Threads are easier to clean due to wider spacing of the threads for situations where casing is reused. 

 

 

Specifications:


Sizes: AW, BW, NW, HW, PW, SW, ZW, BWT, NWT, HWT, PWT, SWT 

146, 131, 116, 101, 86, 76, 66, 56 & 46mm.  

 

 

TECHNICAL SPECIFICATIONS


 

SIZE Tube O.D. Tube I.D. Threads
A B per inch
(mm) (mm) (T.P.I.)
146 (143/134) 143.3 133.3 4
131 (128/119) 128.4 118.4 4
116 (113/104) 113.4 103.4 4
101 (98/89) 98.4 88.4 4
86 (84/77) 84.4 77.5 4
76 (74/67) 74.4 67.5 4
66 (64/57) 64.4 57.5 4
56 (54/47) 54.3 47.4 4
46 (44/37) 44.3 37.4 4


 

Q Series Drill Rods
Size Outside diameter(mm) Inside diameter(mm) Wall thickness(mm)
AQ rod 44.5 34.9 4.8
BQ rod 55.5 46 4.75
NQ rod 71 60 5.5
HQ rod 88.9 77.9 5.5
PQ rod 114.3 103.4 5.5
Casing Rods
Size Outside diameter(mm) Inside diameter(mm) Threads per inch
NW 88.9 76.2 4
HW 114.3 101.6 4
PW 139.7 127 4
6" 168 149 4
WL46 44.15 37.15 4
WL56 54.15 47.15 4
WL66 64.25 57.25 4
WL76 74.25 67.25 4
WL86 84.25 77.25 4
WL101 98 88.3 4
WL116 113 103.3 4
WL131 128 118.3 4
WL146 143 133.3 4


 

Drill Rod Data
  I.D. O.D. Weight/10' Vol /100'
Size inch/mm inch/mm Kg Lbs Litre U.S. Gal.
A 1.375"/34.9mm 1.750"/44.5mm 14.04 31 29.14 7.7
ATW 1.437"/36.5mm 1.750"/44.5mm 12.05 26.6 31.79 8.4
B 1.812"/46.0mm 2.188"/56.6mm 18.12 40 50.72 13.4
BTW 1.909"/48.5mm 2.225"/56.5mm 15.76 34.8 56.02 14.8
N 2.375"/60.3mm 2.750"/69.9mm 23.55 52 87.05 23
NTW 2.525"/64.2mm 2.875"/73.0mm 22.83 50.4 98.4 26
H 3.062"/77.8mm 3.500"/88.9mm 34.88 77 144.58 38.2
P 4.062"/103.2mm 4.625"/117.5mm 48.02 106 255.1 67.4


 

Coring Bit Data
  Core Diameter Hole Diameter Hole Volume
Size inch/mm inch/mm Litres/100Mtr U.S. Gal./100Ft
A 1.062"/27.0mm 1.890"/48.0mm 181 14.6
ATW 1.185"/30.1mm 1.890"/48.0mm 181 14.6
B 1.432"/36.5mm 2.360"/60.0mm 282.2 22.7
BTW 1.656"/42.0mm 2.360"/60.0mm 282.2 22.7
N 1.875"/47.6mm 2.980"/75.7mm 451 36.3
NTW 2.205"/56.0mm 2.980"/75.7mm 451 36.3
H 2.500"/63.5mm 3.782"/96.0mm 724.4 58.3
P 3.345"/85.0mm 4.827"/122.6mm 1180.4 95.1


 

Casing Data
  I.D. O.D. Weight/10' Hole Volume
Size inch/mm inch/mm Kg Lbs Liter/100Mtr U.S.Gal./100Ft
AW 1.90"/48.26mm 2.350"/59.69mm 17.21 38 85.3 18.8
BW 2.375"/60.2mm 2.975"/75.44mm 31.71 70 136.2 30
NW 2.99"/75.95mm 3.620"/91.95mm 38.95 86 202.4 44.5
HW 3.93"/99.82mm 4.630"/117.6mm 51.19 113 331.1 72.8
PW 4.84"/122.94mm 5.660"/143.7mm 65.23 144 494.8 108.8


 

 

The standard effective lengths are 3.0, 1.5, 1.0 & 0.5 meters.  Other lengths may be manufactured upon request.  
 

All casing tubes have right hand threads. Left hand threads can be manufactured if requested.  
 

 

 

 

 

For more information please contact:
 

 

 

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

 

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

 

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

 

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

 

Email: roschen@roschen.com ; roschen@roschen.net

 

Website: http://www.roschen.net ; http://www.roschen.cn

 

http://www.roschen.com ; http://www.roschengroup.com

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Contact Person : Mr. Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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