Full Threaded Steel Self Drilling Rock Bolt / Hollow Anchor Bar / Anchor Rods

Overview

Basic Info.

Model NO.	WHA01
Surface Treatment	Bronze, Zinc Plated, Rainbow, Plain, Nickle Plated
Head Type	Round
Transport Package	in Bulk or in Small Box, Small Box+Carton
Specification	25x3 25x5
Trademark	WORSKEY
Origin	China
HS Code	7318190000
Production Capacity	1500tons/Year

Packaging & Delivery

Package Size 27.00cm * 20.00cm * 17.00cm Package Gross Weight 25.000kg

Product Description

Product Description

The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc projects.

Advantages and Characteristics as below:

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.

R thread anchor bar or called rock bolt, 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.

Size	O.D(mm)	I.D(mm)	Ultimate Load(KN)	Yield Load(KN)	Weight(kg/M)
R25N-14	25.0	14.0	200	150	2.3
R32L-22	32.0	22.0	210	160	2.8
R32N-21	32.0	21.0	280	230	2.9
R32N-18.5	32.0	18.5	280	230	3.4
R32S-17.5	32.0	17.5	360	280	3.5
R32S-15	32.0	15	360	280	4.1
R38N-21	38.0	21.0	500	400	4.8
R38N-19	38.0	19.0	500	400	5.5
R51L-38	51.0	38.0	550	450	6.0
R51L-36	51.0	36.0	550	450	7.6
R51N-36	51.0	36.0	800	630	7.6
R51N-33	51.0	33.0	800	630	8.4
Steel grade		Acc. to EN10083-1
Thread direction		Left hand
Thread standard		ISO 10208 / ISO1720

Detailed Photos

FAQ

Q: Are you trading company or manufacturer?
A: We are trading company.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: 30% T/T in advance ,balance before shippment.

Q: Why choose us?
A: 1) Reply you in 24 working hours. 2) Experienced staffs would like to answer all your questions in time. 3) Customized design is available. ODM&OEM are welcomed. 4) Special discount and protection of sales are provided to our consumers. 5) We can provide free sample, consumer should pay the freight first, and the expensive sample cost will be added in the next order. 6) As an honest exported seller, we always use professional factory, quality quotation, good service, skilled technicians to ensure our products to be finished in high quality and stable feature.