Mayhew threads Drill Rods for Rotary drilling
Mayhew drill rod
Mayhew Junior Rods
Mayhew threads Drill Rods 114.3mm diameter with Friction Welded Tool Joints for Rotary drilling
Roschen can supply friction welded drill rods with API, Beco, NWY, and Mayhew threads, as well as RC (Reverse Circulation) and casing for Rotary Percussive drilling.
| Mayhew Junior Rods Specifications |
| Description |
Pipe OD |
Pipe Wall |
Connection OD |
Connection ID |
Length(ft) |
| 2-3/8 IF Flush |
3 1/2 |
0.375 |
3 1/2 |
1 3/4 |
20 |
| 2-3/8 IF |
2 3/8 |
1.102 |
3 1/2 |
1 3/4 |
10, 15, 20 |
| 2-3/8 FEDP |
2 3/8 |
1.102 |
3 1/8 |
1 1/2 |
10, 15, 20 |
| 2-3/8 Mayhew Jr |
2 3/8 |
1.102 |
3 |
1 1/2 |
10, 15, 20 |
| 2-3/8 Mayhew Jr |
2 3/8 |
0.190 |
2 3/4 |
1 1/2 |
5, 10 |
| 2-7/8 Mayhew Jr Pipe Flush |
2 7/8 |
0.362 |
2 7/8 |
1 1/2 |
10, 15, 20 |
| Mayhew Reg. Flush |
3 1/2 |
0.375 |
3 1/2 |
1 1/2 |
20 |
| Mayhew Reg. |
2 3/8 |
1.102 |
3 1/2 or 3 1/4 |
1 1/2 |
10, 15, 20 |
| 2-7/8 IF |
4 1/2 |
0.337 |
4 1/8 |
2 1/2 |
10, 15, 20 |
| 3-1/2 IF |
5 1/2 |
0.362 |
4 3/4 |
2 11/16 |
10, 15, 20 |
| 3-1/2 API Reg Flush |
4 1/2 |
0.337 |
4 1/2 |
1 1/2 |
10, 15, 20 |
| 4-1/2 API Reg Flush |
5 1/2 |
0.757 |
5 1/2 |
2 1/4 |
10, 15, 20 |
| AWJ/AW w/Flats |
1 3/4 |
0.752 |
1 3/4 |
5/8 |
5,10 |
| NWJ/NW w/Flats |
2 5/8 |
0.752 |
2 5/8 |
1-1/4 or 1-3/8 |
5,10 |
Drill rods up to 152 mm (6 ″) diameter feature friction welded tool joints, giving great strength to the rod.
Drill rods are manufactured up to 406 mm(16") diameter and up to 9.5 metre effective length.
All drill rods feature nitrided threads for extra wear resistance.
| Name |
A |
B |
C |
D |
E |
F |
G |
H |
| TOOL JOINTS:1 |
|
| 2 3/8 API Regular |
2-3/8" |
3-1/8" |
2-5/8" |
3 |
5 |
3 |
60° API |
1 |
| 2 7/8 API Regular |
2-7/8" |
3 3/4 |
3 |
3 1/2 |
5 |
3 |
60° API |
1 1/4 |
| 3 1/2 API Regular |
3 1/2 |
4 1/4 |
3 1/2 |
3 3/4 |
5 |
3 |
60° API |
1 1/2 |
| 4 1/2 API Regular |
4 1/2 |
5 1/2 |
4-5/8" |
4 1/4 |
5 |
3 |
60° API |
1 1/4 |
| 2 3/8 API Internal Flush |
2-3/8" |
3-3/8" |
2-7/8" |
3 |
4 |
2 |
60° API |
1 3/4 |
| 2 7/8 API Internal Flush |
2-7/8" |
4-1/8" |
3 25/64 |
3 1/2 |
4 |
2 |
60° API |
2-1/8" |
| 3 1/2 API Internal Flush |
3 1/2 |
4 3/4 |
4 1/64 |
4 |
4 |
2 |
60° API |
2 11/16 |
| 2 3/8 Mayhew Junior |
2-3/8" |
2 3/4 |
2 21/64 |
2 1/4 |
4 |
2 |
60° Mod. API |
1 1/2 |
| 2 3/8 Mayhew Regular |
2-3/8" |
3 1/4 |
2 35/64 |
3 |
4 |
1 1/2 |
60° Mod. API |
1-5/8" |
| 2 7/8 Mayhew Full Hole |
2-7/8" |
3 3/4 |
3 3/64 |
3-3/8" |
4 |
1 1/2 |
60° Mod. API |
2 |
| 2 3/8 Failing Exploration |
2-3/8" |
2 31/32 |
2 1/2 |
2 3/4 |
4 |
2 |
60° Mod. API |
1 1/2 |
| 2 7/8 Failing Exploration |
2-7/8" |
3 3/4 |
3-1/8" |
3 1/4 |
4 |
2 |
60° Mod. API |
1-7/8" |
| 2 3/8 Hughes Acme Regular |
2-3/8" |
3-1/8" |
219/32 |
3 |
4 |
3-3/8" |
29° Acme |
1 |
| 2 3/8 Winter Weiss |
2-3/8" |
3 1/4 |
235/64 |
3 |
4 |
1 1/2 |
60° Mod. API |
1 1/2 |
| 2 7/8 Winter Weiss |
2-7/8" |
37/16 |
235/64 |
3 |
4 |
1 1/2 |
60° Mod. API |
1 1/2 |
| 3 1/2 API Full Hole |
3 1/2 |
4-5/8" |
4 |
3 3/4 |
5 |
3 |
60° Mod. API |
27/16 |
| FLUSH JOINT TAPERED THREAD |
|
| United Geophysical (1 11/16 OD) |
111/16 |
111/16 |
1-3/8" |
1 |
6 |
3 |
29° Acme |
1 |
Drill rods up to 152 mm (6 ″) diameter feature friction welded tool joints, giving great strength to the rod.
Drill rods are manufactured up to 406 mm(16") diameter and up to 9.5 metre effective length.
All drill rods feature nitrided threads for extra wear resistance.
Standard drill rod lengths are 1M; 1.5M; 2M; 3M; 5M and 6M.
Other sizes and dual wall rods for reverse circulation systems and jet grout applications can be manufactured to suit your requirements.
Spanner Flat details can be agreed when ordering.
Website: http://roschen.en.made-in-china.com
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