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China professional drill manufacturer of Spiral drill pipes ruilong drill/Mining Drill Rod API/coal mining

FOB Reference Price:Get Latest Price
US $20 - 30 / Piece | 3 Piece/Pieces (Min. Order)
Supply Ability:
30000 Piece/Pieces per Quarter
Port:
qingdao
Seller Support:
Payment protection
On-time shipment
Product quality protection
Payment:
More

Quick Details

Place of Origin:
Shandong, China (Mainland)
Brand Name:
ruilong drill
Model Number:
75mm-120mm
Type:
Drill Pipe
Machine Type:
Drilling Tool
Certification:
API
Material:
High Manganese Steel, R780 E75
Processing Type:
Forging
Use:
Coal Mining, coal mining gas discharging
diameter:
75-120mm

Packaging & Delivery

Packaging Details: 1.wooden case
2.standard export bundle paacking
Delivery Detail: within 7 days

manufacturer of Spiral drill pipes ruilong drill/Mining Drill Rod

1.Spiral craft: prestressed wire winding and welding with single strip steel or double strip steel, based on the big torque of geological drill rod.

 


2.Material of rod body: geological alloy pipe
Material of connector: first-class alloy constructional steel

 


3.Craft: thermal refining in vacuum, which greatly improves the fatigue resistance and shearing strength.
Rod body craft: friction welding, which improves the bending strength and the firmness of the drill rod.
 

 

4.Production facility: CNC machining equipment, which guarantees the high production efficiency, steady quality and straightness.
Design feature: overlay spiral. It guarantees big torque, quick slagging, and clear hole forming. Besides, the drill bit will hardly get stuck.
5.Application: soft coal bed, and other formation similar to coal bed, which is hard to drain and deslag.
Matching:

 


6.Geological spiral drill rod, diameter not bigger than 73mm: match all kinds of hydraulic driver drill.
When drill super soft high pressure coal seam, diameter 90mm, 113mm, 133mm, 146mm will be recommended. It will be more convenient to lay and install core barrel. This kind of drill rod guarantees high efficiency of drilling work, which stops a gap in China.

 

 

manufacturer of Spiral drill pipes ruilong drill/Mining Drill Rod

 

 

Type

Specification

C

Outer diameter

E

Inner diameter

Connection

Body

W/p

Kg

 

Style

Outer diameter

A

DF

mm

Upsetting sizes

 

D

Center area

mm

B

Bottom area

mm

 

mm

in

mm

in

mm

in

 

 

 

 

 

 

Type I

(9300mm/p in length)

ZH-JZ66-6 5/8FH-I

168.3

6 5/8

114.3

4 1/2

6 5/8FH

209.6

8 1/4

195.70

184.2

176.2

965

 

ZH-JZ55-5 1/2FH-I

139.7

5 1/2

92.1

3 5/8

5 1/2FH

177.8

7

170.7

152.4

144.5

730

 

ZH-JZ50-NC50-I

127.0

5

76.2

3

NC50

168.3

6 5/8

154.0

139.7

130.2

700

 

ZH-JZ45-NC46-I

114.3

4 1/2

71.4

2 13/16

NC46

158.8

6 1/4

145.3

127.0

117.5

585

 

ZH-JZ35-NC38-I

88.9

3 1/2

52.39

2 1/16

NC38

120.7

4 3/4

116.3

101.6

92.1

370

 

ZH-JZ29-NC31-I

73.03

2 7/8

50.8

2

NC31

104.8

4 1/8

100.4

84.1

81.0

220

 

Type II

(13500mm/p in length)

ZH-JZ50-NC50-II

127.0

5

76.2

3

NC50

168.3

6 5/8

154.0

139.7

130.2

945

 

ZH-JZ45-NC46-II

114.3

4 1/2

71.4

2 13/16

NC46

158.8

6 1/4

145.3

127.0

117.5

790

 

 

Specifications( mm)CraftConnection type with drilling machine
Dia.LengthThread type
50-42500~1500Taper threadFriction weldingclamp
63.5-42500~1500Taper threadFriction weldingclamp
63.5-50500~1500Taper threadFriction weldingclamp
73-50500~1500Taper threadFriction weldingclamp
73-63.5500~1500Taper threadFriction weldingclamp
90-63.5500~1500Taper threadFriction weldingMatch active drill rod
98-73500~1500Hex. ShankFriction weldingMatch active drill rod
110-63.5500~1500Taper threadFriction weldingMatch active drill rod
130-63.5500~1500Taper threadFriction weldingMatch active drill rod
146-73500~1500Taper threadFriction weldingMatch active drill rod

3. manufacturer of  Spiral drill pipes photo

 

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Trade Assurance
China (Mainland) | Manufacturer
Transaction Level:
Supplier Assessments:
2 Transactions 9,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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