Self drilling anchor technical reference - ONTON SDA
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Transcript of Self drilling anchor technical reference - ONTON SDA
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ONTON SDA
Rock Anchors - Micropiles - Soil Nails
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Self-Drilling Anchor System
➔ Hollow Bars with external thread.➔ Drill Bits are selected to meet different soil conditions.➔ Coupler connects hollow bars.➔ Optional Centralizer centers the bar inside the bore hole.
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SDAs
TITAN IBO - Trapezoidal Thread
Arco - Termic R32 can provide over 1100 Mpa tensile strength and over 900 Mpa yield stress.
Williams - Unique Thread Form provides higher relative rib area at 3 times than the conventional bar.
DYWI, MAI bar - Well known and widely used.
Good Quality and Stable, but...
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EXPENSIVE!
- Brand premium- High cost of steel
MAI Anchor Rod - R32N - 10'MAI Anchor Rod - R32N - 10'
$39.91
Buy Now
SDAs
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SDAs made-in-China
Chinese Steel: Most Competitve Price in the world
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SDAs made-in-China
Tips for choosing:
Safety line <ductility, stability>
Baseline <strength capacity / thread / surface / corrosion protection>
Most manufacturers even can’t test with the right method.
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Now you can consider “Made by ONTON”
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Worry about Quality?
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Actually, better than most.
Brand Type Weight(kg/m)
Section(mm2)
Fm(kn)
Fp0.2(kn)
Rm(MPa)
Rp0.2(MPa)
A≥
Agt≥
R32-280 3.2 410 280 220 680 540 5%
H0280-32 3.4 435 280 230
R32L 3.38 430 241 198 560 460 10% 5%
R32x5.6 3.57 450 300 240 550 370 15% 12%
R32N 3.4 430 280 230 650 530 5%
R32N 3.29 420 345 244 822 582 13% 9%
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Same type, Onton’s is Stronger.
Elongation
Cap
acity
kN
10%
300kN
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Good Stability
Strict Sampling Inspection Standard
- 2 pcs per hundred, R32
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Ugly?
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Seeing is believing.
And samples are free.
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Lack of experience?
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ONTON万通 - the First SDA Manufacturer in China
1991 1994 2001 2008 2014 2016
Founded Jiazhuqing Tunnel[1]. Qinghai-Tibet Railway
[1]: SDA was first applied in tunneling in China.[2]: The cooperation has never stopped.
Exported to Japan[2] , Asia, Europe
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One more thing...
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- What is the most valuable part to Atlas, Titan...?- Can you distinguish the brands of SDA easily?
Contact us for details
www.ontonbolt.com