Fully Threadbar Bolt
- -Available in left hand or right hand tread.
- -Higher thread ribs mix resin better and improve anchorage.
- -Suitable for using with either resin cartridges or cement grout.
- -It has equal strength on the entire length.
- -Due to continuous thread on entire length. the nut can be fastened upward at any place. This will increase the material utilization ratio and save cost.
- -Available in black or hot dip galvanized.
Fully Threadbar Bolt Functions
Fully Threadbar Bolt is anti-cannabis resin anchor bolts behind its superior performance,reasonable structure.All thread rod bolt length with equal strength.Shortcomings of the anti-twist screw bolt that csrew and flatten rope sections have lower strength is easy to be broken out. Moreover carrying capacity of the anti-cannabis anchor increases 40%.It is simple and low cost,widely used in coal mines,railway tunnels and other types or roadway projects.
Fully Threadbar Bolt Mechanical Properties
| Diameter | Yield Strength | Tensile Strength | Elongation A % | Mass Meter | Core Dia | Major Dia | |||||||
| Min | Typ. | Min | Typ. | Min | Typ. | ||||||||
| 20mm | 515 MPa | 162KN | 560 MPa | 176 KN | 630 MPa | 198 KN | 710 MPa | 220 KN | 18% | 24% | 2.46 KGS | 19.5mm | 22.5mm |
| 22mm | 525 MPa | 199KN | 590 MPa | 224 KN | 652 MPa | 247 KN | 761 MPa | 289 KN | 18% | 24% | 2.98 KGS | 21.2mm | 23.8mm |
| 25mm | 550 MPa | 269KN | 610 MPa | 298 KN | 684 MPa | 335 KN | 798 MPa | 391 KN | 18% | 24% | 3.85 KGS | 24.8mm | 28.5mm |
Fully Threadbar Bolt Bearing plate
Round plate, domed plate
Fully Threadbar Bolt Accessories
Domed nut, hex nut, anti-friction washer,domed ball
Fully Threadbar Bolt Length & Package
Bolts are packaged in bundles.
Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied fitted to rock bolts in the configuration requested.
Installation Guide
-The nature of the ground must be evaluated.
-Drill a hole with punch according to the diameter of rock bolt,the diameter of hole id 6mm-12mm bigger than the rock bolt.
-Before installation,the hole should be blown and cleaned by compressed air.
-If use resin,push the resin into the hole by hand or machine,ensure it could reach to the top of hole.
-Rotate and push the bar,when the plate reaches the roof,spin bolt to ensure that mix the resin completely.The mixing time should be controlled strictly according to the using in struction of resin.
-Screw the nut tightly when time is up.
Fully Threadbar Bolt Applications
Mines
Tunnels
Slopes
Places where need ground support
