R51 Rock Bolt of Self-Drilling Anchor System (SDA) Manufacturer in China

• Warranty: 2 Years
• Certification: CE, ISO 9001:2008, Gsg/ISO/GB
• Standard: ISO 10208/ISO 1720/Other International Standard
• 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.: R51N/36
• Surface Treatment: Galvanized
• Manufacturing Process: Hot Rolling/Cold Rolling
• Material: Carbon Steel
• Material Standard: DIN En10083-1
• Outside Diameter mm: 32-111
• Length(M): 1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5
• Application: Tunneling, Deep Foundation, Rock Support
• Thread Type: Left or Right T or R Thread
• Transport Package: Packed in Bundles
• Specification: R25/R32/R38/R51/T30/T40/T53/T76/T103
• Trademark: TERNAL
• Origin: China
• HS Code: 84314320
• Production Capacity: 10000tons/Month
• Package Size: 100.00cm * 20.00cm * 30.00cm
• Package Gross Weight: 506.000kg

Product Description

We are the Rock Bolt Manufacturer in China

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

 

HOLLOW BAR
Specification	R25N-14	R32S-15	R32S-17.5	R32N-18.5	R32N-21	R32L-22	R38N/19	R51N	R51L	T76N	T76S	30/11	30/14	30/16	40/16	40/16S	40/20	52/26
da(mm)	25	32	32	32	32	32	38	51	51	76	76	30	30	30	40	40	40	52
di(mm)	14	15	17.5	18.5	21	22	19	36	38	46	49	11	14	16	18	16	20	26
P(mm)	12.7	12.7	12.7	12.7	12.7	12.7	12.7	12.7	12.7	-	-	-	-	-	-	-	-	-
Ultimate Load(KN)	210	360	360	280	280	210	500	800	500	1500	1200	320	260	220	660	660	539	929
Yield Load(KN)	150	280	280	230	230	160	400	630	459	1900	1600	260	220	280	525	525	430	730
Weight(Kg/m)	2.4	4.1	3.5	3.4	2.9	2.8	5.5	7.8	6.2	19	16	3.1	2.8	2.7	6.3	7.0	5.3	9.5
Thread Type	ISO 10208							ISO 1720		MAI Factory Standard		TITAN Factory Standard
Type of Steel	EN 10083-1
Thread Type	Left Hand / Right Hand
Option of Anti-Corrosion	Hot-dipped Galvanization Standard
	Painting Coating
	Epoxy Coating
Length(m)	1 m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m, 6m