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SPECIAL IN JOTAIN

Jotain is expert in exporting steel products.we not only have the great advantages in our product quality/price/resource/service,but also have absolute advantages in our technical aspects.

PRODUCTS

ROCK AND DRILLING TOOLS



Rock Drilling Tools


Our rock drilling tools include taper-hole type and screw type. And this series include slice and button bits, annular bits, ball tooth bits and the relative bit tail,drill rod and hollow steel, nuts and coupler.

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Hydraumatic rock drilling jumbo   rodTypeL(MM)螺纹(R/T)
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JH28R-L

JH32R-L

KJH32R-L

JH35R-L

KJH35R-L

JH38R-L

KJH38R-L

1000

1100

1200

1530

1830

2440

3050

3660

4700

4900

5525

6300

28X12.7R

32X12.7R

38X12.7R

38X15.63T

JD32R-L

JD38R-L

KJD38R-L

JD45R-L

KJD45R-L

JD51R-L

KJD51R-L

1000

1100

1200

1530

1830

2440

3050

3660

28X12.7R

32X12.7R

38X12.7R

38X15.63T

45X18.47T

51X20.32T

Hydraumatic drilling jumbo connectingh setTypeL(mm))螺纹(R/T)
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LR28-155

LR32-160

LR38/R32-165

LR38-170

LT38/R32-175

LT38/R38-180

LT38-190

LT38/T45-200

LT45-210

LT45/T51-220

LT51-225

155

160

165

170

175

180

190

200

210

220

225

28X12.7R

32X12.7R

38X12.7R

38X15.63T

45X18.47T

51X20.32T


Blast Furnace Drill Rod And Bit


Our company produces high quality drilling tools for blast furnaces by many years of rock drilling production experience.The products include slice drill bit,cross-shaped drill bit,integral drill rod,sectional type drill rod,connecting set and bits and so on.The quality has reached the first class level at home and abroad.Those products have been sold to Europe and U.S.A.and widely used in many large-scale steel enterprise.



Blast furnace open-ended drill bitTypeD(MM)螺纹(R/H/D)
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S145-R

S151-R

S157-R

S164-R

S176-R

45

51

57

64

76

25X4.23H

30X5.08D

28X12.7R

32X12.7R

38X12.7R

SW45-R

SW51-R

SW57-R

SW64-R

SW76-R

45

51

57

64

76

25X4.23H

30X5.08D

28X12.7R

32X12.7R

38X12.7R

SB45-R

SB51-R

SB57-R

SB64-R

SB76-R

45

51

57

64

76

25X4.23H

30X5.08D

28X12.7R

32X12.7R

38X12.7R

SR45-R

SR51-R

SR57-R

SR64-R

45

51

57

64

30X5.08D

28X12.7R

32X12.7R

38X12.7R

QZ45-R

QZ51-R

QZ57-R

QZ64-R

QZ76-R

45

51

57

64

76

25X4.23H

30X5.08D

28X12.7R

32X12.7R

38X12.7R

Blast furnace open-ended drill rodTypeL(MM)螺纹(R/T)
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JD32R-L

JD35R-L

JD38R-L

KJD32R-L

KJD35R-L

KJD38R-L

1800

2400

2800

3200

3600

4000

4500

5100

25X4.23H

30X5.08D

28X12.7R

32X12.7R

38X12.7R

Drilling tools


1.Special tools for geological drilling
The special tools for geological drilling are widely used in ascertaining underground rock structures,underground water, natural gas and mineral resources.The exploitation of petroleum and natural gas cannot be taken without drilling wells,and the seamless pipe is the main tools,they generally include core external pipe with,core internal pipe,casing pipe and drill rod,etc.Our drilling tools for these applications have complete specifications and high quality.


2.Coal mining bits
The cutter pick is used in exploiting mines and tunneling work of lanes,tunnels,and these projects are mainly equipped  with coal cutter,heading machine and milling machine,etc.
The cutter picks produced by our company include the following types: U62、U47、U82、U84、U85,U92、U94、U95、S100、S120、S135、S150、S170 and so on.The pick body is formed by low-temperature extrusion work with quality materials.It has high density and will not eliminate carbon.The NC machine can guarantee precision of the size and also apply special processing and anti-wear materials.


Anchor rope anchor rod


The high-intensity under-relaxation anchor wire produced by our company can be used in cable-stay bridge,steel-arch bridge,suspension bridge,side slope adjustment and water project.The anchor wire specification is wire number 37-421 with maximum nominal breaking load reaching 25484KN.it has been already applied in many bridge constructions an home and abroad such as WUHAN Baishazhou Yangtze Bridge,jinzhou yangzte Bridge,Junshan Yangtze Bridge,Badong Yangtze Bridge,Fengjie Baiyian No.3 Bridge and Burma Bridge,etc.

The high intensity alloy steel anchor bolt produced by our company is comprehensively applied in road,railway,tunnel constructions,water projects and pipe roofing support,side lope support.It is the most economic and effective way of improving rock stablilty and solving complicated stabilization issues in geotechnical engineering.The specs of self-drilling cavity rock bolt,hollow grouting bolt and small tubes provided by our company cover full range and series used in China and overseas.It has already been applied in many national major constructions such as highly dangerous side slope adjustment in Three Gorges Project,diversion tunnel construction in jinpin Power Plant,Wuhan-Guangzhou railway,deep foundation pit construction of Wushang Mansion and exported to countries and areas like U.S.A,Canada,Australia and Europe.


The technical specifications of common hollow grouting bolt
SpecificationExternal diameterTensile strengthBore diameterScrew directionNorminal length
TR2525≥15~1842   Left

2、2.5、3、3.5、

4、4.5、5、6、8

TR2828≥1944
TR3232≥3251


Self-drilling hollow grouting bolt
SpecificationExternal diameterInternal diameterLimit loadYielding loadScrew directionNorminal length
25/172517170150  20#Left
Innovation

3

4

5

6

25/172517200180  40#
25/172517200180
28/142814300270  35#
31/183018203180  20#


Permanent feature rock bolt
Product specificationSectional area
Single beam weightBreading forceTensile fore
Φ7X51921.5321192
Φ7X62311.8386231
Φ7X83082.4514309
Φ7X103853643386
Φ7X155774.5964578
Φ7X2076961284770
Φ7X259627.61606964
Φ7X5019241532131928
Φ7X78300223.650003000
7X104400231.466674000