Mayhew Junior Drill Rod 2 3/8 Inch with Friction Welded for Australian Water Well Drilling

• Customization: Available
• Standard: RoHS, BS, DIN, JIS, AISI, API
• Length: 1 ~ 9 Meters
• Model NO.: 2 7/8 inch
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• Transport Package: Steel Packaging
• Specification: 2 3/8, 2 7/8, 3 1/2, 3 5/8, 4, 4.5 inch
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143210
• Production Capacity: 20000PCS/Month

Product Description

ROSCHEN Specialisted in producing of varies kinds of drill rod, such as integral dirll rod, extention rod, DTH drill rod, twist drill rod, tapered rod, coal drill rod, three angle drill rod, oil well drill rod, gas rod, water well drill rod, NQ drill rod etc.
 
Made-to-order products can be supplied according to your detailed requirements.
 
The products has two kinds of dry-type and wet-type, which has specifications of diameter 26mm, 28mm, 30mm, 38mm, 40mm, etc. As the manufacturer of coal drill rod we can supply you with all of your drilling needs. They are used for electric coal drill anchor bar, which is ideal and necessary tools for coal mine exploitation and shoring.


From WLA to WLP, Parallel Threaded Drill Rods, DCDMA sizes AW-HW, and Metric sizes 42mm to 90mm, tapered threaded drill rods, DCDMA sizes AWY to NWY, AWJ, BWJ and S75 drill rods.

Used for the mineral exploration with a high quality!

Material:
Drill rod body with high quality alloy steel pipe, drill pipe joint with high quality alloy steel.


Welding technique:
Use the advanced friction welding welding production and processing.

Characteristic:

1. With highly and strength of resistance on the bending, welding fixed.

2. Highly efficiency on production and steady quality

3. It able to keep the hole straight and with long use time.

Application:
Mainly used for gas drainage hole, also widely used for mining, geology exploration, hydroeceltric dam.

Size Available/ Diameter: Ø 42, Ø 50, Ø 60, Ø 70, Ø 90mm
W series: WLA, WLB, WLN, WLH, WLP(PHD), AW/AWJ/AWY, BW/BWJ/BWY, NW/NWY, HW
Q series: AQ, BQ, NQ, HQ, PQ
Length: 0.75M, 1M, 1.5M, 2M, 3M

Drill pipe and casing AW, BW, NW, HW, PW

Sizes(mm):

AW: 57.2*4.35,
BW: 73*6.35
NW: 88.9*6.35
HW: 114.3*6.35
PW: 139.7*6.35

Prouct features:

1. Superior-quality green pipe and advance heat treatment process-high strength and high toughness
2. To meet requirment of the API5D and ISO9001
3. Equipped with advanced inspection instruments and a strictly enforced quality controlling
4. Due to our proffestional technicians and product flexibility, we are capable of meeting some customer's specific requirements

Geographical drill pipe
Geographical drill pipe is applicable for geographical, hydrographical, coal mine, terrestrial heat engineering drilling.

The main products include 42, 50, 60 and 63.5. The major technical indexes of the geographical drill pipes
Adopt seamless steal pipes are in strict compliance with international standards. 

The raw materials of drill pipes produced by the company are sourced from the five famous steel companies
Obtaining the certification of JSO9002 Quality Management System: China Angang Steel, Baogang steel,
Henggang steel. The pipe materials for geographical drills are strictly specified in terms if sizes, forms,
Weights technical specifications, test methods, test regulations, package, markings, and quality certificates.
All of the seamless steel pipes adopt the original ex-factory identifications. If it is contracted that goods are delivered in terms of steel grades, the identifications

And quality certificates of the steel pipes are indicated with steel grades. The steel grades of drill pipes

 

All worldwide standard Sizes will be available.
No	Size	OD(mm)	ID(mm)	Thread type	Weight (kg/m)
1	Φ73	73.5	65.5	DCDMA	7
2	Φ89	89	81	DCDMA	9.4
3	Φ108	108.5	99.5	DCDMA	12
4	Φ127	127.5	118	DCDMA	14
4	Φ146	146.5	137	DCDMA	18
6	Φ168	168	154	DCDMA	28
	Φ178	178	164	DCDMA	30
7	Φ194	194	181	DCDMA	33

 

Technical parameters:
Description	OD	OD	Weight(kg)
AW 3.0m(10') CASING	57.10(mm)	48.40(mm)	17 (kg/3m)
AW 1.5m(5') CASING	2.25(in)	1.91(in)	38(Ib/10ft
BW 3.0m(10') CASING	73.00(mm)	60.30(mm)	31.30(kg/3m)
BW 1.5m(5') CASING	2.88 (in)	2.38(in)	70 ( Ib/10ft)
NW 3.0m(10') CASING
NW 1.5m(5') CASING	88.90(mm) 3.5(in)	76.20(mm) 3.00 (in)	38.4(kg/3m) 86(lb/10ft)
NW 1.0m(2') CASING
HW 3.0m(10') CASING
HW 1.5m(5') CASING	114.30(mm) 4.50(in)	101.60(mm) 4.00 (in)	52.20(kg/3m) 17.00(lb/10ft)
HW 1.0m(2') CASING
HWT 3.0m(10') CASING
HWT 1.5m(5') CASING	114.30(mm) 4.50(in)	101.60(mm) 4.00 (in)	52.20(kg/3m) 17.00(lb/10ft)
HWT 1.0m(2') CASING
PW 3.0m(10') CASING
PW 1.5m(5') CASING	139.70(mm) 5.50(in)	127.00(mm) 5.00(in)	64.30 (kg/3m)144.00(lb/10ft)
PW 1.0m (2') CASING

 

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

Sizes: 
 
1. Drill rod: BQ, NQ, HQ, PQ,  NW, HW, PW
2. Core barrel:  BQ, NQ, NQ2, NQ3, HQ, HQ3, PQ, PQ3 & head assembly and assembly  
3. BQ, NQ, HQ, PQ, T2, T6, etc. Diamond core bit, reaming shell & shoe bit (syn. and surface-set, PDC)
4. Drill tool: hoisting plug, water swivel, overshot, outer tube & inner tube wrench, foot clamp,etc.



FAQ


Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.

Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
 


For more information please contact:


 
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
   
Website: http://roschen.en.made-in-china.com 

 ; http://roschen.en.made-in-china.com 
http://roschen.en.made-in-china.com 

ROSCHEN Specialisted in producing of varies kinds of drill rod, such as integral dirll rod, extention rod, DTH drill rod, twist drill rod, tapered rod, coal drill rod, three angle drill rod, oil well drill rod, gas rod, water well drill rod, NQ drill rod etc.
 
Made-to-order products can be supplied according to your detailed requirements.
 
The products has two kinds of dry-type and wet-type, which has specifications of diameter 26mm, 28mm, 30mm, 38mm, 40mm, etc. As the manufacturer of coal drill rod we can supply you with all of your drilling needs. They are used for electric coal drill anchor bar, which is ideal and necessary tools for coal mine exploitation and shoring.


From WLA to WLP, Parallel Threaded Drill Rods, DCDMA sizes AW-HW, and Metric sizes 42mm to 90mm, tapered threaded drill rods, DCDMA sizes AWY to NWY, AWJ, BWJ and S75 drill rods.

Used for the mineral exploration with a high quality!

Material:
Drill rod body with high quality alloy steel pipe, drill pipe joint with high quality alloy steel.


Welding technique:
Use the advanced friction welding welding production and processing.

Characteristic:

1. With highly and strength of resistance on the bending, welding fixed.

2. Highly efficiency on production and steady quality

3. It able to keep the hole straight and with long use time.

Application:
Mainly used for gas drainage hole, also widely used for mining, geology exploration, hydroeceltric dam.

Size Available/ Diameter: Ø 42, Ø 50, Ø 60, Ø 70, Ø 90mm
W series: WLA, WLB, WLN, WLH, WLP(PHD), AW/AWJ/AWY, BW/BWJ/BWY, NW/NWY, HW
Q series: AQ, BQ, NQ, HQ, PQ
Length: 0.75M, 1M, 1.5M, 2M, 3M

Drill pipe and casing AW, BW, NW, HW, PW

Sizes(mm):

AW: 57.2*4.35,
BW: 73*6.35
NW: 88.9*6.35
HW: 114.3*6.35
PW: 139.7*6.35

Prouct features:

1. Superior-quality green pipe and advance heat treatment process-high strength and high toughness
2. To meet requirment of the API5D and ISO9001
3. Equipped with advanced inspection instruments and a strictly enforced quality controlling
4. Due to our proffestional technicians and product flexibility, we are capable of meeting some customer's specific requirements

Geographical drill pipe
Geographical drill pipe is applicable for geographical, hydrographical, coal mine, terrestrial heat engineering drilling.

The main products include 42, 50, 60 and 63.5. The major technical indexes of the geographical drill pipes
Adopt seamless steal pipes are in strict compliance with international standards. 

The raw materials of drill pipes produced by the company are sourced from the five famous steel companies
Obtaining the certification of JSO9002 Quality Management System: China Angang Steel, Baogang steel,
Henggang steel. The pipe materials for geographical drills are strictly specified in terms if sizes, forms,
Weights technical specifications, test methods, test regulations, package, markings, and quality certificates.
All of the seamless steel pipes adopt the original ex-factory identifications. If it is contracted that goods are delivered in terms of steel grades, the identifications

And quality certificates of the steel pipes are indicated with steel grades. The steel grades of drill pipes

 

All worldwide standard Sizes will be available.
No	Size	OD(mm)	ID(mm)	Thread type	Weight (kg/m)
1	Φ73	73.5	65.5	DCDMA	7
2	Φ89	89	81	DCDMA	9.4
3	Φ108	108.5	99.5	DCDMA	12
4	Φ127	127.5	118	DCDMA	14
4	Φ146	146.5	137	DCDMA	18
6	Φ168	168	154	DCDMA	28
	Φ178	178	164	DCDMA	30
7	Φ194	194	181	DCDMA	33

 

Technical parameters:
Description	OD	OD	Weight(kg)
AW 3.0m(10') CASING	57.10(mm)	48.40(mm)	17 (kg/3m)
AW 1.5m(5') CASING	2.25(in)	1.91(in)	38(Ib/10ft
BW 3.0m(10') CASING	73.00(mm)	60.30(mm)	31.30(kg/3m)
BW 1.5m(5') CASING	2.88 (in)	2.38(in)	70 ( Ib/10ft)
NW 3.0m(10') CASING
NW 1.5m(5') CASING	88.90(mm) 3.5(in)	76.20(mm) 3.00 (in)	38.4(kg/3m) 86(lb/10ft)
NW 1.0m(2') CASING
HW 3.0m(10') CASING
HW 1.5m(5') CASING	114.30(mm) 4.50(in)	101.60(mm) 4.00 (in)	52.20(kg/3m) 17.00(lb/10ft)
HW 1.0m(2') CASING
HWT 3.0m(10') CASING
HWT 1.5m(5') CASING	114.30(mm) 4.50(in)	101.60(mm) 4.00 (in)	52.20(kg/3m) 17.00(lb/10ft)
HWT 1.0m(2') CASING
PW 3.0m(10') CASING
PW 1.5m(5') CASING	139.70(mm) 5.50(in)	127.00(mm) 5.00(in)	64.30 (kg/3m)144.00(lb/10ft)
PW 1.0m (2') CASING

Sizes: 
 
1. Drill rod: BQ, NQ, HQ, PQ,  NW, HW, PW
2. Core barrel:  BQ, NQ, NQ2, NQ3, HQ, HQ3, PQ, PQ3 & head assembly and assembly  
3. BQ, NQ, HQ, PQ, T2, T6, etc. Diamond core bit, reaming shell & shoe bit (syn. and surface-set, PDC)
4. Drill tool: hoisting plug, water swivel, overshot, outer tube & inner tube wrench, foot clamp,etc.



FAQ


Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.

Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
 


For more information please contact:


 
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
   
Website: http://roschen.en.made-in-china.com 

 ; http://roschen.en.made-in-china.com 
http://roschen.en.made-in-china.com