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| MINING |
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| TUNNELING |
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| CONSTRUCTION INDUSTRY |
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8892459 |
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RESIN BOLTS
APP, APG, APB resin bolts
Intended use
- APP; APG; APB resin bolts are designed to be used for roof and ribs support in mine working areas as an independent or additional roof support system. They are also used for the attachment of various components of mining equipment.
Technical description
- AP bolts are modern design anchors with load capacity of up to 300 kN and a nut locking system (shearpin).
- APP; APG; APB anchor rod is made from a reinforcing bar of 21.70 mm in diameter according to ZN-95/AP-1; ZN-02/AP-6 made of the following type of steel:
| Bolt |
Steel grade |
Re min (MPa) |
Rm min (MPa) |
A5 min % |
| APP |
AP 600 |
400 |
600 |
19 |
| APG |
AP 700 |
550 |
700 |
20 |
| AP-E500 |
500 |
700 |
21 |
| APB |
AP 770 |
640 |
770 |
18 |
- M24 nut is connected with the rod by means of a "SPIROL" ø3 or ø6 pin.
- Spherical washer makes it possible to fix the anchor at 18°angle.
- The anchor can be used with a square, round or square washer with an eyelet made of 8 or 10 mm plate.
Technical data
| Rod diameter |
dr = 21,70 mm |
| Thread size |
M24 |
| Thread length |
150 mm |
| Rod length |
od 400 do 4000 mm |
| Torque shearing the ø3 pin |
80 ÷ 120 Nm |
| Torque shearing the ø6 "SPIROL" pin - (light) |
40 ÷ 60 Nm |
| Torque shearing the ø6 "SPIROL" pin - (medium) |
90 ÷ 120 Nm |
| Torque shearing the ø6 "SPIROL" pin - (heavy) |
140 ÷ 160 Nm |
| Anchor capacity required by documentation |
APP - min 190 kN |
| APG - min 230 kN |
| APB - min 260 kN |
| Effective anchor capacity |
APP - 220 kN |
| APG - 250 kN |
| APB - 300 kN |
Installation procedure
- Put resin cartridges in the drill hole. Insert the anchor and rotate while pushing causing the resin to mix. During mixing, the nut does not turn as it is joined with the rod by means of a ø3 or ø6 pin.
Once the resin has set, the pin is sheared by turning the nut. Apply torque of at least 250 Nm to screw on the M24 nut in order to tension the anchor to the desired prestress (initial tension) of minimum 30 kN.
APP, APG, APB adhesive anchors have a Certificate issued by Central Mining Institute in Katowice allowing the product to bear the safety mark No. B/1160/2005.
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