R38 90mm Self Drilling Anchor Drill Bit for Hard Rock

Min.Order: 1
Product origin: Ningbo, Zhejiang, China
Infringement complaint: complaintComplaint
US$ 2.1

Description
Introduction to SDA

The self-drilling hollow anchor system performs drilling, anchoring and grouting in one step. It allows air and water to freely pass through the bar during drilling to remove debris and then allows the grout to be injected immediately after completely covering the entire bolt.

Features and Advantages

No predrilling
Rock at any depth
Can be installed in all soil types
Casing for lateral loads
Grout and bar are installed simultaneously
Only need rock drill & grout plant

Main Components:
Self-drilling Anchor System Consists of:

Steel Hollow Bar

Steel Coupler

Steel Plate

Steel Nut

Sacrificical Drill Bit



Technical Data Sheet

Drill Bit Selection
EXDescriptionA machined or cast hardened cross dirll bit.
Suitable ConditionsA majority of applications for loose to medium dense ground conditions.
EXXDescriptionThe tungsten carbide corss bit.
Suitable ConditionsSuitable for soft to medium fractured rock formations.
ESFDescriptionCast and hardened hemispherical button drill bit.
Suitable ConditionsSuitable for silt, sand and gravel and soft rock formations.
ESDDescriptionDrop center hardened button bit.
Suitable ConditionsFor increased drilling efficiency of silt, sand and gravel with small boulders or soft rock.
ESSFDescriptionTungsten carbide hemispherical button drill bit.
Suitable ConditionsWith flat drill face for a large range of fractured ground, broken and medium rock formations.
EWDescriptionClay drill bit.
Suitable ConditionsCohesive mixed soils without obstructions.
ECDescriptionHardened tri-cresent/arching drill bit.
Suitable ConditionsSuitable for unconsolidated soil with small boulders.
ECCDescriptionTungsten carbide tri-cresent/arching bit.
Suitable ConditionsFor a range of soft to medium rock formations.
EYDescriptionHardened tri-blade drill bit with a drop center buttons.
Suitable ConditionsOffers an increased cutting performance in fills and chalk.
EYYDescriptionTC drop centre bit with hardened tri-blade bit.
Suitable ConditionsSuitable for soft to medium cemented ground conditions including fills and chalk.
 
Bit TypeDrill Bit Diameters
R25R32R38R51T30T40T52T73T76T103
EXφ42
φ51
φ51
φ76
φ90
φ76
φ90
φ100
φ90
φ115
φ42
φ46
φ51
φ76
φ76
φ90
φ100
φ115
φ115φ130
φ170
φ130
φ170
-
EXXφ42
φ51
φ51
φ76
φ90
φ76
φ90
φ100
φ90    φ100 
φ115   φ130
φ150
φ42
φ46
φ51
φ76     φ90
φ100  φ115
φ130  φ150
φ115
φ130
φ150
φ130
φ150
φ200
φ130
φ150
φ200
φ175
ESFφ42
φ51
φ51
φ76
φ76
φ90
φ100
φ90
φ110
φ42
φ46
φ51
φ76     φ90
φ100  φ115
φ130 
----
ESD--φ115φ115--φ115φ130φ130
φ170
-
ESSFφ42
φ51
φ51
φ76
φ90
φ76
φ90
φ100
φ115
φ90    φ100 
φ115   φ130
φ150
φ46
φ51
φ70     φ76
φ90     φ100
φ115   φ130
φ100
φ115
φ110
φ130
φ120
φ130
φ150
φ175
EW-φ76
φ90
φ76     φ90
φ100  φ110
φ115  φ130
φ150   
φ130
φ150
φ175
φ76
φ90
φ90
φ130
φ150
φ130
φ150
φ130
φ150
φ130
φ150
φ220
φ280
EC-φ51
φ76
φ76
φ90
φ115
φ115φ51φ90
φ115
----
ECC-φ51
φ76
φ76
φ90
φ110
φ115
φ115φ51φ90
φ100
φ115
----
EY-φ76
φ90
φ76
φ90
φ130
φ115------
EYY-φ76
φ90
φ76
φ90
φ130
φ115------





Product Tag:
Related categories:
Scroll to Top