Product Details
Mayhew Junior Friction Welded Drill Rods 3 1/2 inch with Mayhew
Regular Pin 2-3/8" 10 feet length
Description
. ACCURACY: Blueprint drawings are sent before order placement to
guarantee the
customer receives the exact product. For custom orders, physical
samples are also
offered.
. QUALITY: Utilizing an automated friction-welding process and
CNC-machined tool joints
ensure a precision product every time. Checkout our friction-welder
here.
. TRACEABILITY: Every joint of pipe is engraved with a unique
reference number to
enhance customer service. This establishes 100% accountability of
our products and
provides customer peace of mind.
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 |
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 | .280/254 | 3 1/2 | 1 3/4 | 10, 15, 20 |
2-3/8 FEDP | 2 3/8 | .280/254 | 3 1/8 | 1 1/2 | 10, 15, 20 |
2-3/8 Mayhew Jr | 2 3/8 | .280/254 | 3 | 1 1/2 | 10, 15, 20 |
2-3/8 Mayhew Jr | 2 3/8 | 0.19 | 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 | .280/254 | 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 | .362/.478 | 5 1/2 | 2 1/4 | 10, 15, 20 |
AWJ/AW w/Flats | 1 3/4 | .188/.250 | 1 3/4 | 5/8 | 5,10 |
NWJ/NW w/Flats | 2 5/8 | .188/.250 | 2 5/8 | 1-1/4 or 1-3/8 | 5,10 |
Tool Joint Connection | Mayhew JR, Mayhew Reg, 2-3/8" FEDP, 2-7/8" FEDP, AWJ, NWJ, 2-7/8"
IF, 3-1/2" IF, 3-1/2" API Reg, 4-1/2" API Reg, 2-3/8" IF |
Pipe OD | 2-3/8", 2-7/8", 3-1/2", 4-1/2", 5-1/2", 1-3/4", 2-5/8" |
Pipe Wall Thickness | .190, .188, .250, .254, .276, .280, .337, .362, .368, .478 |
Joint Length | 5', 10', 15', 20' |
Breakout Tool | Flats, Lugs, None |
Company Profile
ROSCHEN GROUP
ROSCHEN Group has the world class advanced equipment like 12000 tons forging,
metal processing plant, heat treatment workshop, numerical control
plant, Advanced five-axis machining center, etc. professional
technical and skilled team to ensure mining, mineral tools,
equipment products quality stable and reliable.
ROSCHEN Group Limited is a manufactory with years of research and development
for the mining, mineral tools, equipment. We are capability to
produce high performance world class products and control excellent
quality. Our main product includes tricone bit, diamond core bits, drill pipe, core barrel, TCI
tricone bit, mill tooth tricone bit, RC hammer, DTH bit, etc.
ROSCHEN Manufactory PROCESS

ROSCHEN Sales Value Growing Up!

ROSCHEN'S MISSION
1. Strive to create and supply Best quality products for the
industry that last longer than the average products.
2. Provide excellent service for our clients. 24 hour-7 days /week
schedule to get our clients what they need – FAST.