Self Drilling Hollow Bar Anchor for Underground Engineering Support R32

• Application: Construction
• Certification: ISO
• Surface Treatment: Yes
• Technics: Hot Rolled
• Material: Steel
• Type: Rock Bolt
• Model NO.: R32
• Transport Package: Bundle
• Specification: R25, 32, 38, 51, T76
• Trademark: TOPMETAL
• Origin: China
• HS Code: 7308400000
• Production Capacity: 100000m

Product Description

Product Description

The product is composed by hollow anchor bar, anchor nut, anchor plate, anchor coupler, drill bit, and the hollow anchor bars can be cut and lengthened by coupling on request. It is unique anchoring system and can meet current and increasing demands of the tunneling industry and ground engineering. The system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil.

Features
1. Safe, reliable, and time saving. Self drilling system eliminates the requirement for a cased borehole.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively. 
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.

Drill bits, nut, plate and coupler, etc.will be accembled accordingly.

Product Parameters

Type	Outer Dia.(mm)	Inner Dia.(mm)	Ultimate Load(KN)	Yield Load(KN)	Weight(kg/m)
R25N	25	14	200	150	2.3
R32L	32	22	260	200	2.8
R32N	32	21	280	230	2.9
R32/18.5	32	18.5	280	230	3.4
R32S	32	17	360	280	3.5
R38N	38	21	500	400	4.8
R38/19	38	19	500	400	5.5
R51NL	51	36	550	450	6.3
R51N	51	33	800	630	8.0
T76N	76	51	1600	1200	16.5
T76S	76	45	1900	1500	19.7

Detailed Photos