R25/R32/R38/R51/T76 Grouting Vertical Anchor Bolt/Bar/Rod

R25/R32/R38/R51/T76 Grouting Vertical Anchor Bolt/Bar/Rod

Name: Full Threaded Steel Self Drilling Anchor Bolt
Uploaded: 2024-07-01T14:06:02+08:00
Description: Hollow anchor bar means a rod that transfers the structures or geotechnical load to a stable rock formations, anchor

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Payment Type:	T/T,D/P,L/C
Incoterm:	FOB,CIF,EXW,CFR
Transportation:	Ocean,Land,Express
Port:	Tianjin,Qingdao,Shanghai

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Product Description

Product Attributes

Packaging & Delivery

Product Description

Product Attributes

Model No.: R25 R32 R38 R51 T76

Standard: Gb, Astm, Din, Api, Jis

Material: A53-A369, Q195-Q345, Cr-Mo Alloy, St35-St52, 10#-45#, Mn-V Alloy, Crni Alloy

Section Shape: Round

Place Of Origin: China

Application: Structure Pipe, Drill Pipe

Production Process: Cold Drawn

Certification: Ce, Api

Special Tube: Api Pipe

Whether Alloy: Non-Alloy

Tolerance: ±1%

Category: Seamless Steel Pipe

Processing Service: Bending, Welding, Decoiling, Punching, Cutting

Packaging & Delivery

Selling Units	:	Ton
Package Type	:	Standard marine packaging, or as required by the customer
Picture Example	:

Full Threaded Steel Self Drilling Anchor Bolt

Hollow Anchor Rod

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Product Description

Hollow Anchor Bar means a rod that transfers the structures or geotechnical load to a stable rock formations, Anchor Bolt consists of bar, drill bit, coupling, plate, grouting stopper and nut. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment. Hollow anchor bar is made of seamless tube with high strength.

Features of Hollow Grouting Anchor Bar :

• Fits standard Boomer, ROC and Mustang rigs.

• Particularly suitable for difficult ground conditions.

• A high rate of installation since drilling, placing and grouting can be performed in one single operation.

• Self drilling system eliminates the requirement for a cased borehole.

• Installation with simultaneous drilling and grouting possible.

• Easy installation in all directions, also upwards.

• Suitable for working in limited space, height and in areas of difficult access.

• Simple post grouting system.

• Hot-dipped galvanizing for corrosion protection

Advantages and Characteristics :

1.No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.

2.Fast drilling and installation, because drilling, installation and grouting are in a single operation.

3.Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.

4.The hollow core not only serves for flushing during drilling, but also for grouting after drilling.

5.Continuous threads ensure the bars can be cut and coupled at any point, or extended.

6.Different anchor bits are available for different ground conditions.

7.Duplex anti-crossion prosess, hot-dip galvanized and epoxy coating system.

Hollow Grouting Anchor Bar

Product Specification
Anchor Bar

Hollow Anchor Bar

R-Thread Anchor Rod Technial Data

	R25N	R32N	R32S	R38N	R51L	R51N	T76N	T76S
Outside diameter (mm)	25	32	32	38	51	51	76	76
Internal diameter (mm)	14	19	16	19	36	33	52	45
Ultimate load capacity (KN)	200	280	360	500	550	800	1600	1900
Yield load capacity (KN)	150	230	280	400	450	630	1200	1500
Tensile strength, Rp0.2 (N/mm2)	800	800	800	800	800	800	800	800
Yield strength, Rp0.2 (N/mm2)	650	650	650	650	650	650	650	650
Weight (Kg/m)	2.3	3.2	3.6	5.5	6.5	8.0	16.0	19.7
Thread type (left-hand)	ISO 10208				ISO 1720		MAI T76 Standard
Steel grade	En10083-1 (Alloy structure steel)
Steel grade	Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical.

R thread anchor bar or called rock rod, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world.

Thread size: R25, R32, R38, R51, T76.

Thread standard: ISO10208, ISO1720 etc.

T-Thread Anchor Rod Technial Data

Bar Type	Outside Diameter (mm)	Inside Diameter (mm)	Cross section (mm2)	Ultimate Load KN	Yield Point KN	Weight (kg/m)	Thread Left/ Right Hand
T30/11	30	11	446	320	260	3.3	Lift or right
T30/14	30	14	395	260	220	2.9	Lift or right
T30/16	30	16	382	220	180	2.7	Lift or right
T40/16	40	16	879	660	525	7.0	Lift or right
T40/20	40	20	726	539	430	5.6	Lift or right
T52/26	52	26	1337	929	730	10.0	Lift or right
T73/53	73	53	1160	1630	970	12.3	Lift or right
T73/56	73	56	1094	1414	785	11.1	Lift or right
T73/45	73	45	2265	1630	1180	17.8	Lift or right

T thread anchor bar surface with a trapezoidal thread, this design of connection is much stronger and reliable when compared with rope thread, we supply full sizes from T30 to T103.

Thread size: T30, T40, T52, T73, T103, T127, T130.

Thread standard: ISO10208, ISO1720 etc.

Hollow Anchor Rod

Application:
During the constructions of underground works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one.

Hollow Anchor Bar

Packaging And Transportation
The packaging is packaged in tarpaulins and wooden boxes to ensure that it will not rust and corrode in the process of encountering water.

Hollow Anchor Bar