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| Place of Origin: | ShanDong China(Mainland) |
| Brand Name: | MIROC Self Drilling Anchor Bolt |
| Certification: | GB / API |
| Model Number: | Hollow Grounted Anchor |
| Minimum Order Quantity: | 10 Pieces |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Carton / Wooden Box or Based on Customers |
| Delivery Time: | 10 Days Production |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 9000000 KG Per month |
| Name: | Self Drilling Anchor Bolt | Capacity: | 200KN-8000KN |
|---|---|---|---|
| Type: | Anchor Bolt, Self Drilling Anchor | Diameter: | 25mm-130mm |
| Color: | Based On Customers | Drill Bit Diameter: | 51mm |
| High Light: | steel anchor bolts,self drilling anchors |
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Full Threaded Steel Self-Drilling R23/R32/R38/R51/T76
Hollow Anchor Rods for Mining
Anchor bolt
Anchor bolt means a rod that transfers the structures or geotechnical load to a stable rock formations,
it consistsof rod, drill bit,coupling, plate, grouting stopper and nut. It has been widely used in tunnling,
mining,slope stabilization, tunneldiseasestreatment and roof supporting of undergroundworks. It is for
loose ground(clay, sand friable etc.) Hollow anchor rod is made of seamless tube with high strength.
Features of Hollow Grouting Anchor Bolt:
Hollow design, implement the grouting tube function, avoid the mortar loss when the traditional grouting
tube pulled out.Grouting full, and can achieve the pressure grouting to improve project quality.
Center is good, mortor can wrap the bolt body together, so that it can avoid corrosion to achibe along
term supporting purposes.
Easy installation, without onsite processing of threads. It can be easily installed an plate, nut.
Selt-Drilling Anchor Bolt Description
It may bodies drilling, grouting and anchoring as a whole.
It has a wide specifications. Diameter:25-130mm.
Qucik and easy construction, high efficiency.
Used invious surrounding rocks.
Anchor Bolt
|
|
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) |
ISO10208 |
ISO1720 |
MAIT76 Standard |
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|
Steel grade |
En10083-1 En10083-1(Alloy structure steel) |
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|
Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical. |
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Anchor Plate
|
|
R25N |
R32N |
R32S |
R38N |
R51L |
R51N |
T76N |
T76S |
|
Dimention(mm) |
150*150 |
200*200 |
200*200 |
200*200 |
200*200 |
250*250 |
250*250 |
250*250 |
|
Thickness(mm) |
8 |
10 |
12 |
12 |
20 |
40 |
40 |
40 |
|
Hole diameter(mm) |
30 |
35 |
35 |
41 |
60 |
60 |
80 |
80 |
|
Weight(KG/PC) |
1.4 |
3 |
3.7 |
3.6 |
8.8 |
18.5 |
18 |
18 |
|
Cold deformed with geometry |
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Anchor Coupling
| R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S | |
| Outside diameter(mm) | 35 | 42 | 42 | 52 | 63 | 63 | 95 | 95 |
| Length(mm) | 120 | 145 | 160or190 | 180 | 180 | 200 | 200 | 200 |
| Weight | 0.45 | 0.7 | 0.75 | 1.4 | 1.7 | 1.9 | 6.4 | 6.4 |
| Machined steel coupling middle stop | ||||||||
Drill Bit
| R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S | |
| diameter(mm) | 41,51 | 51,76,90 | 90,100,110,115,130 | 130,150,160,180,200 | ||||
|
Hardened cross bit (EX) |
Hardened cross bit for loose to medium dense condition with small boulders. | |||||||
|
Tungsten cross bit (EXX) |
TC cross bit for soft to medium rock for mations | |||||||
|
Hardened button bit (ES) |
Hardened buuton bit for unconsolidated rock with boulders. | |||||||
|
Tungsten carbon button bit (ESS) |
Button bit with TC inserts for medium rock for formations. | |||||||
|
Hardened arch bit (EC) |
Hardened drill bit with optimized geometry for unconsoliddated soil with small boulders. |
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|
Tungsten carbon arch bit (ECC) |
TC drill bit with optimized geometry for soft to medium rock formations. | |||||||
|
Hardened drop center bit (EY) |
Hardened cross bit for loose to medium dense ground conditions | |||||||
|
TC drop center bit (EY) |
TC drill bit for soft to medium rock formations. | |||||||
|
Casting clay bit (EW) |
Casting clay bit with optimized geometry for very soft to soft caly. | |||||||
| Machined steel bit or Casring steel bit | ||||||||
Anchor Nut
| R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S | |
| Key size(mm) | 41 | 46 | 46 | 50 | 75 | 75 | 100 | 100 |
| Length(mm) | 135 | 45 | 45 | 55 | 70 | 70 | 80 | 80 |
| Weight(kg/pc) | 0.25 | 0.35 | 0.35 | 0.5 | 1.55 | 1.55 | 3.6 | 3.6 |
|
Machined steel nut or casting steel nut |
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T-Thread Anchor Bolt 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 |
|
30/11 |
30 |
11 |
446 |
320 |
260 |
3.3 |
Lift or right |
|
30/14 |
30 |
14 |
395 |
260 |
220 |
2.9 |
Lift or right |
|
30/16 |
30 |
16 |
382 |
220 |
180 |
2.7 |
Lift or right |
|
40/16 |
40 |
16 |
879 |
660 |
525 |
7.0 |
Lift or right |
|
40/20 |
40 |
20 |
726 |
539 |
430 |
5.6 |
Lift or right |
|
52/26 |
52 |
26 |
1337 |
929 |
730 |
10.0 |
Lift or right |
|
73/53 |
73 |
53 |
1160 |
1630 |
970 |
12.3 |
Lift or right |
|
73/56 |
73 |
56 |
1094 |
1414 |
785 |
11.1 |
Lift or right |
|
73/45 |
73 |
45 |
2265 |
1630 |
1180 |
17.8 |
Lift or right |
1. Connect the alloy drill and anchor rod one end, on the other end, connect the drill sleeve and shank adapter ,then connect the drilling rig or hand-held drill. Then start drilling, fill the cooling water while drilling.( If you want to lengthen the anchor rod, can connect the coupling, and then drilling)
2. Take down the drill, put the stop-grouting plug into the rod, and insert it to the hole, then ready to grout. Special circumstances like surrounding rock grouting tension is over or surrounding rock is too broken, can use anchor agent to seal the hole.
3. Connect quick grouting coupling and anchor rod end, connect other end of grouting machine.
4. Start grouting, when grouting full and reach design value then power off . Grouting pressure according to the design parameters and grouting machine performance determine ,Cement/sand reference values is 1:0 ~ 1:1, water/cement reference value is 0.45:1 ~ 0.5:1.
5. Install anchor plate and nuts, and tighten nuts.
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988
