Non-Electric Delay Blasting Cap
A detonating cap incorporating a pyrotechnic delay element that allows for timed detonation sequences in tunnel blasting. The cap uses a shock-sensitive primary explosive initiated by a fuse. Falls under HTS 3603.40.00.00 due to its function as a non-electric detonating cap.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with safety fuse attached
When sold as an assembled unit with detonating cord or safety fuse, classification shifts to the fuse heading.
If bulk primary explosive only
Separate shipments of the primary explosive filling (e.g., lead azide) without shell assembly are classified as propellant powders.
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Import Tips & Compliance
• Declare delay timing specifications on commercial invoice; ensure compliance with DOT hazardous materials regulations for Class 1.1B explosives; maintain chain-of-custody documentation for licensed blasters only
Related Products under HTS 3603.40.00.00
No. 8 Blasting Cap
A standard detonating cap used in mining and quarrying operations to initiate the detonation of high explosives like dynamite. It consists of a small metal shell containing a primary explosive charge sensitive to shock or percussion. Classified under HTS 3603.40.00.00 as a detonating cap designed for blasting purposes.
MS Delay Detonator Connector
A millisecond delay detonator cap used in surface mining to create precise blast patterns minimizing vibration. It connects to shock tube systems for non-electric initiation. HTS 3603.40.00.00 covers these specialized detonating caps.
Percussion Primer Cap
A sensitive percussion cap used in industrial riveting and demolition operations, initiated by mechanical impact. Contains primary explosive for reliable shock initiation. Properly classified under HTS 3603.40.00.00 as detonating caps.
Copper Shell Blasting Cap
Traditional copper-shelled detonating cap for underground coal mining, providing corrosion resistance in damp environments. Filled with pentaerythritol tetranitrate (PETN) base charge. HTS 3603.40.00.00 specifically for detonating caps.
Shock Tube Initiated Det Cap
Modern detonating cap designed for low-energy shock tube initiation systems, reducing stray current risks in electronic environments. Used in urban demolition projects. Classified HTS 3603.40.00.00 as detonating cap.
Quarry Blasting Cap Assembly
Heavy-duty detonating cap assembly for large-scale limestone quarry operations, featuring reinforced crimp for secure explosive attachment. Dual-shock sensitive for reliability. HTS 3603.40.00.00 designation.