| Model: | 16 18 20 22 25 |
|---|---|
| Brand: | tongrui |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Stainless Steel |
| Label: | Thread Bar Anchor Bo , Thread Bar Bo , rock bolt |
| Price: |
US $5
/ pc
|
| Min. Order: | 1000 pc |
| Live Chat: | Last Online:26 Jun, 2012 |
Thread Bar Anchor Bolt
(Prestressed Bolt) :
Thread bar Bolt is composed of screw thread steel bar , high strength plate ,casting damping nut ,yield tube, washer , and other accessories . According to the structure of steel bar ,the bolt has two stypes : Rib Rebar Bolt and Non-Rib Rebar Bolt .
The bolt is usually used in thick coal seam ,that has high stress, large deformation, difficult to support and other poor environment .
Feature :
(1) The bolts have high strength stress ,good support capacity can prevent the roof from sinking down ,and the strata sliding .
(2) Fast and easy installation by mechanized tools.
(3) Be used with resin anchoring cartridge for permanent support .
(4) Be used in high stressed ,large deformed area .
(5) Low price, widely used in coal mines, railways, hydropower and other types of roadway projects.
(6)Thread profile has higher strength than rod and offers excellent mixing capabilities in resins installation
