High Strength Underground Mining Drilling Support Tunnel Rock Anchor Bolt

• Material: High Strength Steel
• Type: Round Head
• Connection: Common Bolt
• Head Style: Various
• Standard: GB, TUV, BV
• Grade: 3.6
• Model NO.: Mining Bolt
• Application: Machinery, Building, Mining Tunnel
• Finish: Customized
• Delivery Time: 5-10 Days After Your Payment
• Minimum Order Quantity: 1 Set
• Price Terms: Fob
• Transport Package: Carton Box, Plastic Bags, Wooden Cases or as Your
• Specification: self drilling anchor bolt
• Trademark: China Coal
• Origin: China
• HS Code: 8431432000
• Production Capacity: 1000 Sets Per Week

Product Description

Introduction of High Strength Underground Mining Drilling Support Rock Anchor Bolt

High Strength Underground Mining Drilling Support Rock Anchor Boltis a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations.
self drilling rock grouting anchor consists of anchor nut, anchor plate, anchor coupler, hollow anchor bar, sacrificial drill bit
High Strength Underground Mining Drilling Support Rock Anchor Bolts are successfully used for anchoring in poor ground, cohesive and non-cohesive soils, and in case of unstable boreholes.

Main Applications of High Strength Underground Mining Drilling Support Rock Anchor Bolt
* Road / rail construction and maintenance
* Tunneling & Mining
* Rural environments
* Private residences
* Special foundations
* Avalanche protection structures
 
System Description of High Strength Underground Mining Drilling Support Rock Anchor Bolt

1, hollow core with continuous hot-rolled outside thread
2, application as injection anchor without casing, especially for non-stable boreholes
3, self-drilling installation, utilization of the anchor bar as drill rod with a single-use drill bit
4, easy extension of the anchor bars by anchor coupler
5, grouting or development of the grout body either simultaneously with drilling using a rotary injection adapter or afterwards
6, assembly of the anchor head with the anchor plate and the nut, stressing and locking
 

Description	unit	R25	R32N	R32N	R32S	R32SS	R38N	R51N	T30N	T40N	T52	T76N
Outer Diameter	mm	25	32	32	32	32	38	51	30	40	52	76
Inner Diameter	mm	14.5	21.5	20	20	18.5	23	36	15	21	26	52
Area	mm2	255	331	369	369	407	548	892	331	803	1274	1991
Ultimate Tensile Load	KN	200	280	280	360	400	500	800	260	660	929	1660
Yield Load	KN	150	230	230	280	330	400	630	220	525	730	1200
Ultimate Tensile Strength	Mpa	784	846	758	976	983	912	897	785	822	729	837
Yield Strength	Mpa	588	695	623	759	811	730	706	665	654	573	628
Nominal Weight	kg/m	2	2.6	2.85	2.9	3.2	4.2	7	2.6	6.3	10	15

Pictures of High Strength Underground Mining Drilling Support Rock Anchor Bolt