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|Processing Type::||Casting||Application:||Self Drilling Anchor System|
|Hardness:||HRC48-HRC55||Thread Direction:||Left Hand|
self drilling rock bolts,
rock anchor bolts
SDA Drilling Bits R38/76mm Self Drilling Rock Anchors for Quarry Micropile Foundation
Specifications of our SDA drilling bits R38/76mm
We have provided many types of drill bits to many countries. The hardness of our drill bits is around HRC48- HRC55 based on your requirement.
Anchor bits is used as a sacrificial consumable for drilling hole, there usually have Tungsten carbide and steel hardened two types, through machining or casting production technology.
Thread type: R25, R32, R38, R51, T30, T40, T52, T73, T76, T103, T111, T127, T130 etc.
The self-drilling hollow bar anchor system consists of a hollow threaded bar with an attached drill bit that can perform drilling, anchoring and grouting in a single operation. The hollow bar allows air and water to freely pass through the bar during drilling to remove debris and then allow grout to be injected immediately after drilling is completed. Grout fills the hollow bar and completely covers the entire bolt. Couplings can be used to join hollow bars and extend the bolt length while nuts and plates are used to provide the required tension.
EX: Hardened cross bit for loose to medium dense ground conditions
ES: Hardened button bit for unconsolidated rock with boulders
EC: Hardened arch bit for unconsolidated soil with small boulders
EY: Hardened 3 cutters bit for loose to medium dense ground conditions
EXX: T.C cross bit for soft to medium rock formations
ESS: Button bit with T.C inserts for medium rock formations
ECC: T.C arch bit for soft to medium rock formations
EYY: T.C 3 cutters bit for soft to medium rock formations
Clay bits: Casted clay bit for Soft clay and soil
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