What are the classes of explosives?

For storage purposes, federal requirements classify explosive materials according to their velocity. There are three classes of explosive materials, per ATF 27 CFR 555.202:

  • High Explosives – explosives which detonate by means of a blasting cap (dynamite, emulsions, flash powders, etc.)
  • Low explosives – explosives which deflagrate when confined (black powder, safety fuses, ignitor cords, “display fireworks,” etc.)
  • Blasting agents – explosives consisting of fuel and oxidizer, intended for blasting and unable to detonated by a No. 8 test blasting cap when unconfined (ammonium nitrate-fuel oil and certain water-gels)

For more information, visit https://www.atf.gov/explosives/explosive-storage-requirements.

If storage magazines are mostly made of high-density wood, will that really contain a blast?

No. A common misconception is explosive storage magazines will contain a blast inside the unit—this is not the case. Explosive storage magazines work as a safeguard against theft and accidental detonation by improper storage and the environment.

Can DynaLoc magazines be customized?

Yes, like all our safe storage buildings, U.S. Chemical Storage can provide custom explosive storage magazines to fit your needs.

What are Day Boxes?

Day Boxes are used for the transfer and temporary, supervised storage of your explosives. These magazines are light enough for daily transport from your overnight storage area to the job site.

Does my explosive storage need to be grounded?

Yes, high and low explosives should have a grounding system according to the NFPA 70 standard. NFPA 70 is the National Electrical Code (NEC) of the United States and covers every facet of the safe installation of electrical wiring and equipment. Grounding protects your building and its contents against electrical strikes and will need to be properly grounded by a licensed electrician.

Do I need a special foundation for my explosive storage?

It is not necessary to place your explosive storage container on a special foundation. However, a foundation such as concrete can help to provide a truly level surface. Be sure to check your local guidelines to determine if any footer is required.

DynaLoc™ Type 2 Outdoor Magazine

U.S. Chemical Storage engineers durable Type 2 portable outdoor magazine for your high explosives. Each explosive storage magazine features ¼-inch steel plate construction lined with 3 inches of non-sparking hardwood and a double locking door system.

Type 2 Outdoor Magazine Storage Building Features & Benefits

  • Bullet-resistant
  • Fire-resistant
  • Weather-resistant
  • Theft-resistant
  • Airflow vents with steel hoods provide adequate ventilation
  • Open channel construction
  • Plate steel construction
  • Secure double locking door system with ¼-inch steel hood features hinges and hasps welded to door – cannot be removed when the door is closed and locked
  • Static grounding system prevents direct contact with the ground, meeting NFPA 70
  • Interior and exterior surfaces protected with high-performance two-part epoxy primer and polyurethane topcoat for resistance to chemicals, exterior abrasion, corrosion and UV
  • 30 standard models
  • Many models include forklift pockets for easy relocation

Explosive Storage Magazine Compliance

All magazines meet and exceed:

  • ATF 27 CFR, Part 555.208
  • DoD 5100

Common Applications

  • Military/law enforcement explosive and ammunition storage
  • Municipal explosive and ammunition storage
  • Contractor explosive and ammunition storage

DynaLoc™ Type 2 Indoor Magazine

U.S. Chemical Storage engineers durable Type 2 indoor magazine storage for storing high explosives (up to 50 lbs.) inside your facility. The portable steel construction-lined hardwood storage magazines keeps your explosive components or ammunition secure and safe.

Type 2 Indoor Magazine Storage Building Features & Benefits

  • Bullet-resistant
  • Theft-resistant
  • 12-gauge steel construction lined with ¾-inch or ½-inch of hardwood
  • Front-open and top-open styles available
  • Secure double locking door system with ¼-inch steel hood features hinges and hasps welded to door – cannot be removed when the door is closed and locked
  • Interior and exterior surfaces protected with high-performance 2-part epoxy primer and polyurethane topcoat for resistance to chemicals, exterior abrasion, corrosion and UV
  • Durable 4-inch casters allow mobility (on some models)
  • Seven standard models

Explosive Storage Magazine Compliance

All magazines meet and exceed:

  • ATF 27 CFR, Part 555.208
  • DoD 5100

Common Applications

  • Military/law enforcement explosive and ammunition storage
  • Municipal explosive and ammunition storage
  • Contractor explosive and ammunition storage

DynaLoc™ Type 3 Daybox for Explosives

Type 3 Explosive Storage Magazine

U.S. Chemical Storage manufactures a durable Type 3 explosive magazine, also known as a “day-box,” for temporary, supervised storage. Our day box for explosives help your team safely transport small amounts of explosives from your overnight storage area for use on your worksite. Lightweight and portable, each Type 3 day box is constructed of 12-gauge steel lined with ¾ inch of hardwood and available in five standard models. Custom sizes are also available.

Use our Type 3 IME/DOT day box for explosives to meet regulations when transporting explosives on public highways. It features 12-gauge steel construction with a laminate interior that meets IME SLP 22 requirements. Four standard sizes are available, including a two-part compartment design that allows storage of transport of detonators and explosives in the same vehicle.

Type 3 Day Box and IME/DOT Day Box Features & Benefits

  • Fire-resistant
  • Weather resistant
  • Theft-resistant
  • Top-opening doors overlap sides by one inch
  • Single lock door system features hinges and hasps welded to door – cannot be removed when the door is closed and locked

Explosive Storage Magazine Compliance

All magazines meet and exceed:

  • ATF 27 CFR, Part 555.208
  • DoD 5100

Common Applications

  • Military/law enforcement explosive and ammunition storage
  • Municipal explosive and ammunition storage
  • Contractor explosive and ammunition storage

DynaLoc™ Type 4 Explosive Magazine for Low Explosives

U.S. Chemical Storage engineers durable Type 4 explosive magazine storage for indoor or outdoor storage of your low explosives. Each explosive storage magazine features forklift pockets and crane lifting eyes for easy relocation.

Type 4 Magazine Storage Features & Benefits

  • Fire-resistant
  • Weather resistant (not required for indoors)
  • Theft-resistant
  • Optional detonator box
  • 12-gauge steel construction lined with ¾-inch of hardwood or non-sparking material
  • Double locking door system features ¼-inch steel hood for security
  • Designed to mount on open channel construction to prevent contact with the ground
  • 25 standard models

Explosive Storage Magazine Compliance

All magazines meet and exceed:

  • ATF 27 CFR, Part 555.208
  • DoD 5100

Common Applications

  • Black powder and ammunition storage
  • Fireworks/pyrotechnics storage

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