High Strength R25 Hot Rolling Thread Hollow Anchor Bar for Micro Piles

Product Description

We are the high strength Hollow Bar Manufaturer
Main Components:
Self-drilling Anchor System Consists of five basic components:
- One Or More Steel Hollow Bar
- One Or More Extension Coupling To Connect The Hollow Bars
- A Steel Plate
- A Steel Nut
-A Sacrificial Drill Bit
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 AdvantagesNo 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
Technical Data Sheet

R25&R32 HOLLOW BAR
Specification	R25-12	R32S-15	R32S-17.5	R32N-18.5	R32N-21	R32L-22
da(mm)	25	32	32	32	32	32
di(mm)	12	15	17.5	18.5	21	22
P(mm)	12.7	12.7	12.7	12.7	12.7	12.7
Ultimate Load(KN)	200	360	360	280	280	210
Yield Load(KN)	150	280	280	230	230	160
Weight(Kg/m)	2.27	4.1	3.5	3.4	2.9	2.8
Thread Type	ISO 10208
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

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