NONELDET SD is a short delay non-electric surface initiation system. It is used in underground metal mining to provide a surface delay between holes for shots between floors.

Product has a detonator strength of No.6. NONELDET SD, with 6 different delay time options from 9ms to 109ms, provides a wide flexibility for the blast design. The precision of the delay element minimizes the deviation between the actual detonation timing and the nominal delay. The 2-layer shock tube is resistant to pulling, breaking, and friction. The capsules are mounted on the shock tube in a waterproof manner and the other end of the shock tube is sealed by ultrasonic welding. These processes ensure the product to be highly resistant to underground humid conditions.

The ergonomic clips feature provides a safe, easy, and quick connection with the detonating cord and improves operational efficiency.