R38 90mm Grouting Drill Bit of Self-Drilling Anchor Bar

• Certification: Gsg/ISO/GB
• Standard: ISO 10208
• Surface Treatment: Spray-Paint
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: R25/R32/R38/R51/T30/T40/T53/T76/T103/T111
• Manufacturing Process: Casting
• Material: Alloy Steel
• Product Type: Es/Ess Cross Drill Bit
• Diameter(mm): 42/51//76/90/100/110/115/130/150/160/180/200
• Application: Drilling
• Thread Type: R Thread
• Transport Package: Carton Box/Plywood Box
• Specification: R25/R32/R38/R51/T30/T40/T53/T76/T103
• Trademark: TERNAL
• Origin: China
• HS Code: 84314320
• Production Capacity: 10000PCS/Month
• Package Size: 230.00cm * 60.00cm * 20.00cm
• Package Gross Weight: 20.000kg

Product Description

We are the Chinese Rock Bolt Manufacturer
 

Main Components:

Self-drilling Anchor System Consists of:

Steel Hollow Bar

Steel Coupler

Steel Plate

Steel Nut

Sacrificical Drill Bit

Technical Data Sheet

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

 

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	-	-	-	-	-	-