Буровой стержень DTH соединяемый с молотком для бурения
Буровой стержень DTH соединяемый с молотком для бурения
Буровой стержень DTH соединяемый с молотком для бурения
Буровой стержень DTH соединяемый с молотком для бурения
Буровой стержень DTH соединяемый с молотком для бурения
Буровой стержень DTH соединяемый с молотком для бурения
Буровой стержень DTH соединяемый с молотком для бурения

Буровой стержень DTH соединяемый с молотком для бурения


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Цена:*

Количество:



Описание и отзывы


Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-19-2025 0.89 $* 0.61 $*
Aug-19-2025 0.45 $* 0.36 $*
Jul-19-2025 0.67 $* 0.56 $*
Jun-19-2025 0.55 $* 0.84 $*
May-19-2025 0.3 $* 0.6 $*
Apr-19-2025 0.59 $* 0.1 $*
Mar-19-2025 0.60 $* 0.62 $*
Feb-19-2025 0.55 $* 0.77 $*
Jan-19-2025 0.9 $* 0.54 $*

Характеристики




DZ55/ R780 MATERIAL DOWN THE HOLE DRILL ROD/DRILL PIPE


Product Description


North Star offers both premium and standard steel grades that are proven to provide the highest level of durability and wear resistance. We never vary grades based on short-term raw material cost savings.
Advantages:
1. Reliable and wear-resistant
2. In-house heat treament for optimum surface hardness and case depth
3. Customizable for steel grade, length, diameter, wall thickness and connection types.

Supplier of Black Diamond (BD); New Diamond DTH Hammer Manufacturers!

World Top Class Quality!
--We are the behind factory of world well-known brands in Mining Industry.


Specification


DTH Drill Rod Options For Rig Types




CM695 760 780
DM30 45 50 T4 RD20
DM25
Pit Viper
SIMBA UG
TH60 T2 T3 75E 100A
ROC F6 L6 L8 SmartRoc FlexiRoc
Sandvik Driltech Gator
Sandvik Driltech T25KW D25 D40
Sandvik Cubex Splines
Sandvik Cubex QXR (No Splines)
Sandvik DI Titon (BPI)
SKS SKFX MD
T64 Carousel

Please talk to us to ensure you make the correct selection for your needs.


DTH Drill Rod Specifications
Diameter
Wall Thickness
Length
Thread
Rig/Wrench Type
in
mm
in
mm
ft
mm
3.5
89
0.5
12.7
26.5
8077
2 3/8"API
AC DM25
3.5
89
0.5
12.7
30
9144
2 3/8"API
AC DM25
4
102
0.346
8.8
25
7620
2 7/8" API
Atlas Copco T4/DM30/DM45
4
102
0.750
19
26.5
8077
2 7/8" API
Atlas Copco T4/DM30/DM45
4
102
0.346
8.8
30
9144
2 7/8" API
Atlas Copco T4/DM30/DM45
4
102
0.750
19
30
9144
2 7/8" API
Atlas Copco T4/DM30/DM45
4.5
114
0.346
8.8
20
6096
3 1/2" API
Atlas Copco T4/DM30/DM45
4.5
114
0.346
8.8
20
6096
2 7/8" IF
Atlas Copco T4/DM30/DM45


Just examples. More details please feel free to contact with us.


Quality Control
Our quality team’s work begins by ensuring a consistently high standard of raw material: checking every batch on delivery against the technical team’s strict criteria for dimensional accuracy and steel chemistry. Once approved for production, every item of material is issued a work number that allows us to track it through every subsequent step of the manufacturing process. The completed product is finally issued and stamped with a serial number that enables 100%
traceability of all that manufacturing data.


Related Products




Packing & Delivery




Company Profie










North Star is well known in HDD tools, DTH tools, top hammer, rotary tools, ...and so on. We are serving the drilling industry in mining, construction and energy with different application. Our vision is to be market leader in related industry with innovation and customer orientation.
Northstar has 20 year's experience in manufacturing drill pipe for the Chinese and international markets. Sales in 2018 are approaching 250,000 pipes, and we are to lift capacity to well in excess of 300,000 pipes in 2019.
We stand by our products. Our aim is 100% customer satisfaction and to that end we take every enquiry and every question with equal seriousness. Our multilingual, muti-cultural management team prioritizes smooth, effective communication.
We are dedicated to continuous improvement of all production and delivery processes. No pipe is released to market without a quality report compliance with all destructive and non-destructive testing critiria. We aim to achieve 100% traceability to ensure our partners and customers can use North Star products with complete confifidence.


Exhibition








Why Choose Us



THE NORTH STAR TEAM IS AT YOUR SERVICE

1. STRENGTH & EXPERIENCE
North Star has 20 years’ experience in manufacturing drill pipe for the Chinese and international markets. Sales in 2018 are approaching 250,000 pipes, and we are pursuing a US$4 million expansion and upgrading program that will lift
capacity to well in excess of 300,000 pipes in 2019.

2.INTERNATIONAL SERVICE CULTURE & PRODUCT SUPPORT
We stand by our products. Our aim is 100% customer satisfaction and to that end we take every enquiry and every question with equal seriousness. Our multilingual, multicultural management team prioritizes smooth, effective communication.
We work together with our partners and end-users to help ensure they get maximum value from every product. If necessary, we send staff members and engineers on site for further study and training. All our products are fully
guaranteed against defects in materials or workmanship.

3.QUALITY MANAGEMENT
Our quality team’s work begins by ensuring a consistently high standard of raw material: checking every batch on
delivery against the technical team’s strict criteria for dimensional accuracy and steel chemistry. Once approved
for production, every item is issued a work number that allows us to track it through each subsequent step of the
manufacturing process.
We are dedicated to continuous improvement of all production and delivery processes. No pipe is released to market without a quality report verifying compliance with all destructive and non-destructive testing criteria. We aim
to achieve 100% traceability to ensure our partners and customers can use North Star products with complete confidence.

4.CONTINUOUS INVESTMENT
North Star is investing US$4 million in 2018 and 2019 as we upgrade equipment and expand production into a new
12,000-square meter workshop, complete with a loading bay that will allow containerization of export product by our
own dedicated team. In 2018 we have already installed a dedicated tool joint forge and heat treatment line, enabling both cost savings and more effective in-house quality control.

5.TRUST IN PARTNERSHIPS
North Star believes in long-term, mutually supportive business relationships. We are totally committed to working
together with our partners: making sure we match the right product with the right project - and at the right price.




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