Frequently Asked Questions about

Explosion Containment Systems

A battery-powered integrated drive
unit (IDU) makes it possible to
move and maneuver into an area
of risk. The IDU is remote controlled
up to a distance of 300 m.

1. How do explosion containment chambers manufactured by DYNASAFE stack up against the competition?

2. How does DYNASAFE assure products are of the highest quality?

3. What is the warranty for DYNASAFE bomb containment products?

4. Why should I consider an electrically powered system versus a gasoline powered engine?

5. Competitors of DYNASAFE claim they offer gas-tight units so how might their products differ from the DYNASAFE gas-tight option?

6. When would I want a gas-tight vessel vs. a suppression-only vessel?

7. Why is it recommended that I purchase a gas sampling unit if I purchase the gas-tight unit?

8. How does the radiation shield in the DYNASAFE product differ from the leading competitor?

9. How quick is the DYNASAFE product in containing a hazardous device as compared to competitive products?

10. Why is the size of the door of a bomb containment chamber important?

11. How far can I be from the DYNASAFE product in order to make it work properly and have myself and others out of harm's way?

12. How long will the battery-powered integrated drive unit run?

13. Why would I want to consider adding a vision system option?

14. When would I want to have a heating option and can this be ordered at a separate time from the initial order?

15. What is a Treatment System for Bomb Containment (TSBC) and when should this be considered?

1. How do explosion containment chambers manufactured by DYNASAFE stack up against the competition?

DYNASAFE'S Mobile Explosion Containment Vessels differentiate themselves from the competition by offering the following key features that provide for a safer, higher performance solution:

pneumatic sealing to keep the units gas tight;
a 360 degree fragmentation and radiation shielding;
repetitive detonations without repair
the largest available access door;
the fastest opening and closing unit; and
an all electrically powered system.

All of DYNASAFE products are customizable so if there is a special need please inquire.

2. How does DYNASAFE assure products are of the highest quality?

DYNASAFE performs a guaranteed Factory Acceptance Test on each unit built prior to sending it out of manufacturing. All of DYNASAFE’s suppliers and resellers are ISO certified. UXB is an ISO 9001:2008 company that has played an active role in the global Explosive Ordnance Disposal (EOD) community for over 25 years having successfully completed projects for federal agencies, state and local governments, and others in 44 states and 23 countries. When the unit arrives to UXB, we do a local acceptance test to assure the product is in order prior to delivering it to our customers. A Dynamic Acceptance Test, completed by a third party, is also available. This test can be viewed onsite in Sweden or can be recorded. This test is at the cost of the customer.

3. What is the warranty for DYNASAFE bomb containment products?

Standard warranty on all DYNASAFE products is one year on parts and includes onsite labor. Extended warranty for one year is available. If the customer would like to add a warranty after the original expiration date, additional costs will be incurred.

4. Why should I consider an electrically powered system versus a gasoline powered engine?

An electric system is more reliable than a hydraulic system (gasoline powered) because there are less moving parts; they are easier and less expensive to repair; and are more compliant in extreme weather conditions. Additionally, DYNSAFE MECV devices will work manually if the battery fails or there is a lack of power supply. The unit can be opened and closed manually with common tools and a ratchet tie-down.

5. Competitors of DYNASAFE claim they offer gas-tight units so how might their products differ from the DYNASAFE gas-tight option?

Two pneumatic seals,
inflated with nitrogen.
Inflation and
decompression of the
seals automatically from
the hand held control
panel.

What can be termed as "gas-tight" is subjective as there are no standards or regulations on what this claim is to mean. DYNASAFE products are pneumatically sealed, which means that when the unit is locked into place the seals are inflated by nitrogen to keep gases from passing into the environment. Additionally, the DYNASAFE units include visual signals, assuring the equipment is closed and is functioning correctly. DYNASAFE's definition of gas-tight refers to the pressure peak inside the vessel at discharge. A standard feature of these products includes the blast proof valves that are part of the gas-sampling system. DYNASAFE has to manufacture their own valves since there are no other valves on the market to handle the pressure peaks of the detonation inside the containment vessel. DYNASAFE's methods for claiming the containment chamber is gas tight means you can be assured of safety.

6. When would I want a gas-tight vessel vs. a suppression-only vessel?

In most emergencies with suspicious packages, one does not know with certainty what is inside the package. Are the contents explosive? Are the contents toxic? Could it be both? A gas-tight vessel contains the explosives and keeps toxic gases safely inside the unit away from the public, while a suppression vessel's sole purpose is blast mitigation.

7. Why is it recommended that I purchase a gas sampling unit if I purchase the gas-tight unit?

Unless you have other means of taking samples from detonations that may occur in the gas-tight chamber, you should have on hand a sampling unit which provides an additional level of safety when possibly when dealing with toxic gases. We also offer a decontamination system for the unit called the TSBC – Treatment System for Bomb Containment.

8. How does the radiation shield in the DYNASAFE product differ from the leading competitor?

A protective layer of 30 mm lead can be
filled between the outer and inner spheres.

When radiation shielding is ordered in the DYNASAFE unit, it is manufactured, actually embedded, into the product with a steel-lead-steel layering encasement. The DYNASAFE solution provides a total sphere of protection from the hazards of radiation instead of applying a separate lead "blanket" around the unit. This secondary action of applying the lead blanket around the outside of a bomb containment chamber can have a scattering effect by redirecting the radiation upon detonation to the unprotected areas at the top and the bottom of the unit, causing a dangerous build op of gamma radiation. Additionally, wrapping the blanket around the unit is another step in the process that takes time away from securing an area in an emergency situation.

9. How quick is the DYNASAFE product in containing a hazardous device as compared to competitive products?

The loading plane of MECV is positioned in 180
degrees for loading of objects from behind.
The position of the loading plane can be
anywhere from 0 to 270 degrees.

In an emergency, time is of the essence and in an airport closing down terminals, time is also money. It is important for bomb containment equipment to be accessible in such emergencies and quickly operational. The DYNASAFE units open with 45 to 75 seconds from a 0 degree angle to a full 270 degrees turning of the loading plane. Competitive units take longer to be readied for action.

10. Why is the size of the door of a bomb containment chamber important?

You can only put something into the system that will fit through the door. The DYNASAFE MECV chamber is made of two locking spheres that open in the middle for a 0 to 270-degree access of the loading plane. The loading plane can be placed anywhere within the 270 degree for even easier loading and unloading of objects.

11. How far can I be from the DYNASAFE product in order to make it work properly and have myself and others out of harm's way?

The MECV can be
equipped with large
buttons for opening
and closing of the
vessel by a Robot or
Remote Operated
Vehicle (ROV).

All units standardly come with a control unit that is cabled at 50 meters/54 yards. However, cables can be daisy-chained 50 meters/54 yards for a total of 100 meters/109 yards cabled. With the radio remote control option, you have 300 meters/328 yards in line of site in order to work. A remote control can be added after the initial purchase. Additionally, units come with robotic buttons that can be used with a variety of robot types.

12. How long will the battery-powered integrated drive unit run?

The integrated drive unit is a self-propelled, battery-charged unit that will run for 2-3 hours on one charge. Its max rate of speed is 3 kilometers per hour or approximately 1.9 MPH and can be maneuvered by radio remote. The drive unit is excellent for narrow streets such as urban operations; in shopping malls and airports.

13. Why would I want to consider adding a vision system option?

Usually a bomb squad technician will want to assure that a suspicious package fits fully into the vessel before it is closed. With a vision system, a bomb technician can navigate by remote control up to 300 meters line of site. This keeps safety personnel out of the immediate area of danger.

14. When would I want to have a heating option and can this be ordered at a separate time from the initial order?

The MECV with heating option
is capable to heat up the
interior of the chamber to
approximately 350°C/662°F.

If you may need to travel with munitions and if the munitions are too unstable to move, or if the regulations of the roads dictate you cannot move live munitions, then you need a way to detonate the munitions on the spot. Even with munitions placed in a gas-tight DYNASAFE chamber, it can be wired to safely induce a blast. Heating destroys the munitions and reduces it to safe metal scrap.

15. What is a Treatment System for Bomb Containment (TSBC) and when should this be considered?

After a detonation occurs inside the containment chamber the inner walls may be covered with contaminates. Furthermore, on the bottom of the chamber there will be a mix of fragments and contaminates. The TSBC is able to saturate these with decontamination fluid. The TSBC allows for gasses from inside the chamber to be cleaned in an efficient air filtering system, even if the chamber is under pressure after a detonation. Liquids inside the chamber are neutralized with liquid decontamination agents and removed from the chamber by vacuum.

For more information on the above products, please Contact Us. »