FOB Price
Obtenir le dernier prix4 ~ 4 / Set
|Minimum Order
Localité:
Shandong, China (Mainland)
Prix de commande minimale:
Commande minimale:
1000 Set
Packaging Detail:
pallet
Delivery Time:
15days after payment inadvance
Supplying Ability:
10000 Set per Month
Payment Type:
T/T, L/C
Personne àcontacter Ms. Eileen
Steel Market, Manzhuang, Tai'an, Shandong, China (Mainland), Taian, Shandong
mechanical rock bolt
mechanical rock 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
