Expansion Shell
M16-20-25-32
Quantity:
Expansion Shell for anchors
Expansion shell for Rock Bolts
| bolt Diameter | Hole Size | Shell length |
| M16,M20,M25 | 34 | 122 OR 135 |
| M16,M20,M25 | 36 | 148 |
| M16,M20,M25 | 41 | 122 |
| M16,M20,M25 | 43 | 135 |
| M16,M20,M25 | 47 | 135 |
| M16,M20,M25 | 54 | 112 OR 182 |
OEM size by drawing data available.
Expansion shell 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.
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.
