Description
The Multi SPD (Short Period Delay) is a nonelectric initiation system which is designed for use in underground and surface mines.
A length of yellow shock tubing, which includes a short period delay in-hole detonator. The detonator includes either a rubber plug or sleeve that is crimped on one end. The detonator delay period is printed along the length of the detonator shell. The free end of the shock tube is sealed and incorporates a colour-coded connector clip, which indicates the delay period.
A tag may be attached behind the connector clip which indicates the length of tubing, as well as the delay time.
