General Features 

• DSI South Africa 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.
• DSI South Africa expansion shells feature parallel contact with the hole wall with sharp serration’s on the outside leaves ensure positive holding power.
• The expansion shell assembly is securely held by a strong protective sleeve, to save installation time and prevent loss of parts while handling. The sleeve must be removed prior to installation. 

Packaging Notes

•  All 16mm expansion shells are contained in cardboard boxes then packed on pallets.

Notes

• Only DSI South Africa rock bolt components should be used to enable the full performance of the bolt system to be obtained.
• DSI South Africa Mining Products Division is Quality Assured to ISO 9001:2000, Registration No. LS3239.