Detonating caps
Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators: > Detonating caps
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified 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.
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.
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.
Aluminum detonating Cap
Lightweight aluminum detonating cap optimized for avalanche control operations, minimizing shrapnel risk. Rapid initiation for emergency snowpack stabilization. HTS 3603.40.00.00 classification.
Instantaneous Blasting Cap
Zero-delay detonating cap providing immediate initiation for synchronized multi-hole blasts in construction excavation. High reliability primary charge formulation. Under HTS 3603.40.00.00.
Undelayed Detonator
Undelayed detonating cap for oil and gas well perforation operations, ensuring precise charge timing in downhole environments. Pressure-resistant construction. HTS 3603.40.00.00.
Relay Detonating Cap
Signal relay detonating cap used in sequential blasting circuits to transmit detonation between main charges. Bridges gaps in detonating cord networks. Classified HTS 3603.40.00.00.
High-Pressure Det Cap
Detonating cap engineered for deep shaft mining at extreme pressures, with reinforced shell preventing premature failure. Critical for vertical excavation safety. HTS 3603.40.00.00.
Surface Mine Detonator
Weather-resistant detonating cap for open-pit mining operations, featuring UV-stable shell and moisture-proof seals. Handles extreme temperature swings. Under HTS 3603.40.00.00.