Drill Bit for Hard Rock Applications of Self Drilling Anchor System

Basic Info.

Model NO.	T30
Type	Whole Set of Anchor System
Application	Tunnel Boring Machine
Certification	Gsg/ISO/GB
Condition	New
Product Type	Es/Ess Cross Drill Bit
Thread	Left/Right
Standard	ISO 10208
HRC	48-52
Transport Package	Carton Box/Plywood Box
Specification	R25/R32/R38/R51/T30/T40/T53/T76/T103
Trademark	TERNAL
Origin	Ningbo, China
HS Code	84314320
Production Capacity	1000000PCS/Year

Packaging & Delivery

Package Size42.00cm * 38.00cm * 25.00cm Package Gross Weight1.000kg

Product Description

Self-drilling Anchor System Consists of: Steel Hollow Bar Steel Coupler Steel Plate Steel Nut Sacrificical Drill Bit

Technical Data Sheet

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

We are the whole set of self drilling anchor system manufacturer The rock bolt, drill bits and hollow bar are our featured products

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

Drill Bit Selection
EX	Description	A machined or cast hardened cross dirll bit.
	Suitable Conditions	A majority of applications for loose to medium dense ground conditions.
EXX	Description	The tungsten carbide corss bit.
	Suitable Conditions	Suitable for soft to medium fractured rock formations.
ESF	Description	Cast and hardened hemispherical button drill bit.
	Suitable Conditions	Suitable for silt, sand and gravel and soft rock formations.
ESD	Description	Drop center hardened button bit.
	Suitable Conditions	For increased drilling efficiency of silt, sand and gravel with small boulders or soft rock.
ESSF	Description	Tungsten carbide hemispherical button drill bit.
	Suitable Conditions	With flat drill face for a large range of fractured ground, broken and medium rock formations.
EW	Description	Clay drill bit.
	Suitable Conditions	Cohesive mixed soils without obstructions.
EC	Description	Hardened tri-cresent/arching drill bit.
	Suitable Conditions	Suitable for unconsolidated soil with small boulders.
ECC	Description	Tungsten carbide tri-cresent/arching bit.
	Suitable Conditions	For a range of soft to medium rock formations.
EY	Description	Hardened tri-blade drill bit with a drop center buttons.
	Suitable Conditions	Offers an increased cutting performance in fills and chalk.
EYY	Description	TC drop centre bit with hardened tri-blade bit.
	Suitable Conditions	Suitable for soft to medium cemented ground conditions including fills and chalk.

Bit Type	Drill Bit Diameters
	R25	R32	R38	R51	T30	T40	T52	T73	T76	T103
EX	φ42 φ51	φ51 φ76 φ90	φ76 φ90 φ100	φ90 φ115	φ42 φ46 φ51 φ76	φ76 φ90 φ100 φ115	φ115	φ130 φ170	φ130 φ170	-
EXX	φ42 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
ESF	φ42 φ51	φ51 φ76	φ76 φ90 φ100	φ90 φ110	φ42 φ46 φ51	φ76 φ90 φ100 φ115 φ130	-	-	-	-
ESD	-	-	φ115	φ115	-	-	φ115	φ130	φ130 φ170	-
ESSF	φ42 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	φ115	φ51	φ90 φ115	-	-	-	-
ECC	-	φ51 φ76	φ76 φ90 φ110 φ115	φ115	φ51	φ90 φ100 φ115	-	-	-	-
EY	-	φ76 φ90	φ76 φ90 φ130	φ115	-	-	-	-	-	-
EYY	-	φ76 φ90	φ76 φ90 φ130	φ115	-	-	-	-	-	-