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Guideline

This section provides the guidelines and forms necessary to complete the ATF Users Permit application process.

Click Button below for Application Forms and Guidelines

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Summary Guidelines for ATF Low Explosives Permit and direct links to Forms:

Permit and Use

Company and operators should to apply for an ATF User Permit (ATF F 5400.13)

Employee Possessors only will submit ATF Questioner (ATF F 5400.28)

Permit costs $100 for three years ($50 for each subsequent 3 year period after the initial permit) and allows for purchase and use of MB Power Cartridges.

Detailed instructions will be on form but a few highlights follow

  • Photo and fingerprint cards are required (usually local police will take fingerprints)

  • Minimal background information required for responsible persons (owner, President, other officers etc.)

  • Storage box (magazine) must be a metal box with two recessed lock cavities to take a pair of drill resistant locks. Appropriate locks can be found at most hardware outlets. Box must be painted with a rubberized material on the inside only.

  • Link To Example Storage Box http://www.homedepot.com/p/RIDGID-32-in-X-19-in-Storage-Chest-2032-OS/100189569#.UgUHQ4LnaQA

  • ATF will visit to provide additional information and examine storage

  • Records to be retained for review (commercial invoices should suffice for this low explosive application)

Also review the Read More Button in the Regulatory Overview section to the right for additional information.

Please contact us for any help you might need in better understanding or completing the Application process.


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The ATF has determined that the Magnum Buster Power Cartridges will now be regulated as a low explosive according to 27 CFR 555. As such users will be required to obtain an ATF Explosives User Permit.

This section is designed to make the ATF permit process as simple as possible. The permit application requires submittal with a standard 2 inch photo and a fingerprint card (FD-258). The Finger Print Card that can be acquired at the local Police Department in rural areas and/or at a Finger Print Service Bureau in the larger metropolitan areas...

Overview

The ATF has determined that the Magnum Buster Power Cartridges will now be regulated as a low explosive according to 27 CFR 555. As such users will be required to obtain an ATF Explosives User Permit.

This section is designed to make the ATF permit process as simple as possible. The permit application requires submittal with a standard 2 inch photo and a fingerprint card (FD-258). The Finger Print Card that can be acquired at the local Police Department in rural areas and/or at a Finger Print Service Bureau in the larger metropolitan areas. By regulation the ATF has up to 90 days to process the permit so expect an average of 2 to 3 months to complete the process. The cost is $100.00 for the initial application which will be good for 3 years. Several months before the end of that initial term a renewal application will be sent from the ATF. The cost will then reduce to $50.00 for each subsequent 3 years period. Once you have your permit approved please forward a copy as we are also required to retain that record in our office.

To get started, go to the ATF website. It is: http://www.atf.gov/content/Explosives/explosives-industry. Open the Explosives Publications Tab. Select the ATF F 5400.13, Application for License. When you get to section 12, you will submit as an Explosives Permit and check the box (Other) specify: Pwr Crtg (as Propellant Cartridges for Power Device). You can also have more than one person in your organization included in a single application. Any partners, corporate officers over these low explosives operations or other "responsible persons" must submit photos and finger print cards. These persons are listed under item 11 on the form.

You must answer Items 13 through 22 as they apply to your situation. These are mostly "yes" or "no" answers. On the application, item 16 asks for business hours which would normally be open at 8:00 and close at 5:00 Monday through Friday. However, if these are not normal for any given operation it is the desire of the ATF that you list the best hours to be contacted for inspection or other purposes.

Employees who will possess these low explosives (only) under an employer's User Permit will complete the ATF Form 5400-28 and include it with the package for submittal. No photo and fingerprints are necessary for employee possessors. Persons listed as "responsible persons" need not complete the employee possessor questionnaire.

In order to provide basic guidance we have the two sample forms, referenced above and filled out with place holders in key areas, as typical examples which should eliminate the normal anxiety associated with this kind of application. The actual links to these forms and other storage and record keeping is provided in the Summary Guidelines.

Given that we are working with ammunition based smokeless propellant the requirement for storage (ATF Type 4 Magazine) is much less onerous than for High Explosives. According to the regulations a lockable wood lined metal (portable) container will be sufficient for storage of this propellant based material.

The construction Requirements for this Type 4 Magazine can be found in the same Explosives Publications Tab found at http://www.atf.gov/content/Explosives/explosives-industry. In that section you will find a Publications drop down menu. Click on "Explosives Magazine Construction Requirements" for the specifications.

Locking requirements are for these types of enclosures can also be found in the ATF published link at http://www.atf.gov/regulations-rulings/rulings/atf-rulings/atf-ruling-2004-3.html.

Permit holders are allowed to manufacture the magazines, in house, to the specification provided on the ATF Web site, as indicated above, or source one through online vendors or local hardware stores that sell job type boxes with double recessed lock cavities.

Should you desire to purchase a storage box for this purpose the link below shows an example of the type of storage box that is acceptable to the ATF. The only modification required is to paint the interior (interior only) with a rubberized liner material.

http://www.homedepot.com/p/RIDGID-32-in-X-19-in-Storage-Chest-2032-OS/100189569#.UgUHQ4LnaQA

Should you desire to fabricate the Storage unit, the construction requirements for this Type 4 Magazine can be found in the same Explosives Publications Tab found at http://www.atf.gov/content/Explosives/explosives-industry. In that section you will find a Publications drop down menu. Click on "Explosives Magazine Construction Requirements" to review the specifications.

Locking requirements for these types of enclosures can also be found in the ATF published link at http://www.atf.gov/regulations-rulings/rulings/atf-rulings/atf-ruling-2004-3.html. However for our requirements you will need to acquire two drill resistant locks that can be found online or at your local hardware store.

ATF Position Statement

This is not a move by or the intention of the ATF to restrict or limit the beneficial use of this technology as a viable alternative to High Explosives. The ATF desires a regulatory structure to ensure that competent personnel are using, handling and storing these cartridges in an approved manner. Moreover, it is understood by the ATF that the Magnum power cartridges remain smokeless propellant based power cartridges used exclusively in our industrial tool for rock breaking applications and in no way become High Explosives by virtue of this licensing requirement.

It is important to note that it is not the intention of the ATF, regarding this regulatory upgrade, to negatively impact the design and intended industrial use of the technology. The ATF understands the industrial benefits of this mature propellant base rock breaking system and the controlled demolition work product it providers to the civil construction industries as an alternative to high explosives. The ATF understands that the public safety is best served by assuring that this technology be available to the demolition/constructing industry as an alternative to high explosives. It is understood that the public safety would not be better serviced by pushing this technology and its use into the full regulatory burden of high explosives and thus forcing operators to revert back to the use of high explosives when the election of this technology would be safer and more effective.

Once the permit application is submitted your application will be assigned to your local ATF office. Someone at that office will contact you to come to your location to inspect your storage, go over the ATF guidelines in general and answer any questions you might have. You can also make corrections or amendments to your application at this time, if necessary. The main requirement, before the personal visit will be to have your approved storage container on site ready for inspection.

There will also be operational benefits to this licensing process:

  • ATF will have a consistent regulatory and inspection framework within the Agency. The ATF field offices that our operators will interface with will have a full operational and scientific understanding of the technology and be fully qualified to communicate with our operating community on technical and regulatory issues.

  • Your ATF Field office will be qualified to support you with state and local authorities that may not have experience with or operating knowledge of the technology. This level of support and education form the ATF may in many cases help prevent overregulation at the city, county, and state level.

  • Federal Explosives Licensing Center:

    244 Needy Road, Martinsburg, WV 24505
    Voice: 877-283-3352 (toll free)
    Fax: 304-616-4401



 

 

REFERENCE: Web Site www.rock-sg.com. The website, in addition to the write up below, shows numerous videos and includes other operational information that enhance the operational knowledge base of this industrial rock breaking technology. The Magnum Buster is a Propellant ...

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Magnum Buster Technology

REFERENCE: Web Site www.rock-sg.com. The website, in addition to the write up below, shows numerous videos and includes other operational information that enhance the operational knowledge base of this industrial rock breaking technology.

The Magnum Buster is a Propellant based Industrial Power Device that utilizes ammunition like cartridges that are in fact initiated with a standard 209 Shot Shell Center Fire Ammunition Primer. This is important as this ammunition based design distinguishes us from the number of other products that utilize classical explosive initiation components such as det fuses with electric wire or nonel initiation systems.

In summary, the Magnum Buster is a safe and reliable rock breaking technology utilizing a proprietary cartridge that can only be initiated with its companion tool. The initial shock wave is transmitted by initiating a small Hilti nail gun cartridge. The gas pressure transmits down the gas channel of the tool and onto the water column of a water filled drill hole. This shock wave produces sufficient pressure to shear a fine disk in the top part of the cartridge. Integrated into this disk is a plastic firing pin that accelerates forward, "taps", and fires the standard shot shell center fire primer that is fitted into the middle plastic primer holder. This sequence initiates the cartridge in the hole.

It is important to note that the water in the drill is essential to the system. It not only provides the medium that allows transmission of the shock wave to the cartridges it also provides a non-compressible medium within the drill hole that allows the rock to hydro fracture. Without the water the cartridge would neither fire nor have adequate confinement to build pressure sufficient to break the rock.

The hardware design, as well, has a multiple function purpose: One is to initiate the Hilt cartridge and secondly to close the hole and provide weight to seal the drill hole, which better confines the pressure pulse thus producing optimal and controlled rock breakage.

The Magnum Buster design offers both safety and productivity in a controlled process by utilizing the gas generating characteristics of smokeless powder.

  • The most important feature of Propellant when used in Magnum Buster applications resides in its unique chemical property that when initiated produces an energy source that is 100% rapid gas expansion.

  • With High explosives you have 3 phases.

  • The detonation phase that is essentially wasted energy and mostly pulverizes the rock around the drill hole. This is the largest component of the energy release, say around 75 to 80 percent.

  • The seismic phase is the vibration source that sends shock waves through surrounding materials. In some circumstances, these vibrations can be destructive to adjacent structures.  Reduction of these affects is generally the reason for designing ms delays in an explosive round.

  • The rapid gas expansion phase.  This is only about 15% of the total energy release of a high explosive but the component that accomplishes most of the rock fracturing. The other components are either wasted or destructive. However, high explosives are a relatively inexpensive commodity so in mass excavation applications it is still cost effective to waste 80% of the available energy sources. The 15% remaining that actually does the real work of rock fragmentation is still cost beneficial. As such it is this rapid gas expansion phase that actually presses into the natural fractures and continues fracture propagation which is the process that breaks rock into productive unit sizes.

  • Propellant is 100% rapid gas expansion and has none of the other destructive energy phases.  This is also why it is perfect for launching projectiles.  Were these other energy phases present in propellant they would be bombs rather than ammunition.

  • When using propellant, as we do in a drill hole filled with fluid, we take advantage of these inherent physical properties of propellant.  We introduce it into the center of the rock and take advantage of the rapid gas expansion to force the non-compressible water into the natural fractures to first initiate crack formation and then to further propagate the crack to some final extent of completion. We are essentially breaking the rock in tension which is always the weakest force keeping it intact. Even hydraulic breakers that bounce around on the surface of rocks will not actually break the material until the tool tip finds a tensile weakness. Then the rock actually breaks. Not in compression.

  • This aspect of the science of Rock Mechanics originates from the 1920's Griffith Crack Theory.  The theory was postulated after a growing phenomenon of metal ships breaking apart and sinking on the high seas. After much study and analysis it was determined that the welding process was leaving micro-fractures in the metal.  Further investigation determined that even though it took fairly significant tensile energy forces to initiate the crack, it required progressively less energy to propagate the crack to completion – so once started they usually propagated to completion.  This was what brought about the science of x-ray for critical metal structures.

  • This is the basis of how our technology fits so perfectly into breaking rock but in a more controlled environment and without the excessive energy components that is part of the makeup of high explosives. The classical term we use is Hydro Fracturing which uses water in the hole to create a non-compressible shock environment. Cartridge initiation thus produces an initial rapid gas expansion similar to a bullet launching a projectile to first shock the column of water that subsequently shocks the rock with a fairly high peak energy that lasts only milliseconds. This is sufficient to initiate fracturing. From here the gas pressure starts to progressively dissipate over additional milliseconds of time but still pushing water through the propagating cracks. However since structural materials like rock require less energy to continue a crack propagation than to initiate one we are able to break fairly large chunks of material in a safe and controlled fashion. By controlled we mean minimal throw of the rock beyond its original confined state. Generally the rock breaks apart and falls within a couple of feet of its original footprint. This gas energy transferred to the water simply does not have the power to throw the broken material any great distances as the energy is fully dissipated by the time the crack propagation completes itself to free space..

  • In addition there is no VOD (Velocity of Detonation) since there is no detonation or seismic component to propellant.  In fact we had a project many years ago to excavate a rock trench alongside an operational high pressure gas line.  The contractor was prohibited from using hydraulic rock breakers as the rock breakers introduced excessive seismic energy which was beyond the engineering factor of safety allowed for this project.  Our technology was the application of choice as it did not introduce a seismic damage potential.