Threadbar Bolt for Mine Support
- -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.
Threadbar Bolt for Mine Support Functions
Threaded Steel Bar is applied in mine roadways and underground engineering surrounding rock support, which can ensure the stability of mine roadways and underground surrounding rock. The entire length of the rod body is continuously threaded by rolling, with equal strength throughout. The fastening end is equipped with prestressed washers and ball-end nuts.
Threadbar Bolt for Mine Support 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 |
Threadbar Bolt for Mine Support Bearing plate
Threadbar Bolt for Mine Support Accessories
Domed nut, hex nut, anti-friction washer,domed ball
Threadbar Bolt for Mine Support Length & Package
Length: 1.8m/2.0m/2.2m/2.4m or as requested
Package:100pcs each bundle as specified.
How to work
-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.
Threadbar Bolt for Mine Support Applications
Mines
Tunnels
Slopes
Places where need ground support
