Long-Period Delay Cap
Detonating cap with extended delay periods (500ms-10s) for specialized underground contour blasting patterns. Provides sequential rock fracture control. Covered by HTS 3603.40.00.00.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fuse-integrated delays
Delay elements incorporated into safety fuse assemblies classify under fuses.
If battery-powered delays
Caps with small battery-powered timing circuits may classify as static converters.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Document exact delay periods for blasting plan approval; temperature range testing required for hot climates; avoid X-ray inspection to prevent initiation
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.
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.
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.