Sunrise Foundry CO.,LTD
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Mining Roof Bolts Roof Bolts For Resin Anchoring
Product Details
Application
Expansion shells are used for fixing single-sided shuttering or similar structures in rock, concrete or comparable load-bearing ground.
The expansion shells hold in any rock strata which is sufficiently competent to provide an adequate anchorage. They are designed to anchor in soft ground or hard rock. In good strata the anchorage exceeds the ultimate strength of the steel bolt. All expansion shells require a competent strata in the anchor zone. The suitability of the anchorage and the specific expansion shell to be used is best determined by physical load testing. The expansion shells feature parallel contact with the hole wall with sharp serration’s on the outside leaves ensure positive holding power.
Production Process
FAQ
Q1: When can I get the price?
A1: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please tell us in your
email so that we will regard you inquiry priority.
Q2: What about the lead time for the mass production?
A2: Honestly, it depends on the order quantity and the season you place the order.
Q3: Can I get a discount?
A3: Yes, for the big order size, please contact us to get the best price.
Q4: Do you inspect the finished products?
A4: Yes, each step of production and finished products will be inspected by QC department before shipping.