DHD Standard seamless Steel Drill Tube Weighted Drilling Pipe Tool High Torque 3M

Heat treatment technology for the drill rod

the drill pipe adopts natual gas walking furnace for heat treatment, the heat treatment of hardening and high

temperature is conducted in closed type of space.temperature in furnace is controlled by multi point thermocouple.

furnace temperature uniformity of quenching holding section is 20C. furnace temperature uniformity of high temperturre

tempering area is 10C.patented quenching process with accuracy can guarantee pipe body and upsetting area

fully austenitizing simultaneously but not bring coarsening of austenite grain size.after drill pipes finish quenching

and come out from furnace,immediately even cooling them by inner spray and oter shower.cooling speed is faster

than critical cooling rate of drill pipe material.

steel drilling tooling double shoulder desing for Pin and box connection:

*add a secondary shoulder on the pin and box thread connection end

*main shoulder with function of sealing an bearing more torque

*secondary shoulder with function of partial torgue and overland protection

*secondary shoulder has function of complementary sealing the whole drill pipe sealing ability is imported

drill pipe tooling Quality control :

DHDT drilling rod hasone automatic non destructive test line with 16 channels ultrasonic and thickness measurement

800 pieces of dirll pipes can be tested one day, test range of outer diameter varies from42mm to 168mm.make

sure that threr is defect in the drill pipe body

Standard DTH drill pipe:
Diameter: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm, 152mm
Length: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm
Thread: 2 3/8" API REG, 2 7/8" API REG, 3 1/2" API REG, 4 1/2" API REG, 2 3/8 API IF, 3 1/2 API IF
Special DTH drill pipe:
The drill pipe for Atlas Copco - Ingersol Rand T4, Schramm T64, Atlas Copco F6, L6 and L8, and the drill pipe for Sandvik

DriltechD25/D40

parameter of drilling pipe:

drilling pipe processing workshop

WUXI JINQIU MACHINERY CO.,LTD was founded in June 1969. it is located in No.99Qianluo road

Qianqiao town Huishan district Wuxi city. It is at Wuxi Vocation park. It mainly produces hydraulic press brake,

hydraulic shear, CNC sheet V grooving machine, allotype surface quick forming machine, CNC hydraulic turret

punching machine and other series products. It is one of the backbone enterprises in the domestic forging

industry with 40 years’ history.

The company covers an area of 62000 square meters with over 50000 square meters construction area.

It have advanced production equipments with imported large CNC gantry milling machine, imported large

CNC boring and milling machine, 100T carriageway and a series of iconic devices.

Company’s excellent design team can make personalized products according to the user’s demands which

to maximize customer value and optimize customer cost performance. Meanwhile, the company have always

stood in the forefront of technological innovation, continued to explore the “JQ”brand products widely and deeply,

and also attached great importance to the research cooperation. it has established long-term cooperative relations

with Jiangnan university, Nanjing university of Aeronautics and Astronautics, Jiangsu university, and also has set up

long-term stable cooperative relationship with the word’s leading multinational companies. Our hydraulic press brake

and shear machine have formed serialization

To met the customer’s different requirements.

Especially since 2002, the company has continued to increase investment in science and technology, our innovation

ability improves yearly through research staff’s innovation and hard work. We has received dozens of national invention

patents and utility model patents, won the provincial high tech enterprise in 2007, and obtained the innovation and reward

fund support from the national ministry of science and technology in 2011.

The company always adhere to quality system has access to the export product quality permit ISO 9000 international quality

system certification CE certification.

We sincerely hope to establish a close cooperation with domestic and foreign customers.

old factory area was founded since 1969 years that produced the hydraluic plate press brake mchine and hydraulic

sheet shearing machine

workshop view at old factory

we moved into new factory in 2008 years to process the CNC draulic press brake,CNC tandem press brake machine,

hydraulic shearing machine, CNC sheet V grooing machine,hydraulic iron worker, 3 roller plate rolling machine

and hydraulic press

machine body of plate press brake &shearing machine process workshop

parts machining workshop for hydraulic bending machine, hydraulic guillotine shear, sheet V groover

CNC press brake machines assembling workshop

workshop for producing the hydraluic sheet cutting machine

workshop use to assemble the CNC sheet V grooving machine

workshop use to assemble the heay press brake machine,light pole bending machine and CNC hydruilc tandem press brake

warehouse use to store the hydraulic swing beam shear and hydraulic guillotine shear

storeshouse use to store theNC press brake and CNC press brkae machine

our company hold the signing ceremony of sales tanks in second half of the year with all sales men on 2019. 6 30.

16x6300 shearing machine export to Vietnam