ROBAND 40DT, Operating Instructions Manual

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SAFETY GLASS
The Toughened Safety Glass used in the ROBAND
®
Pie Warmers is approximately
five times stronger than normal glass. In addition to this strength the toughened
glass is able to handle high temperatures and it is designed to shatter into small,
relatively harmless pieces in the event of breakage. These glass pieces can be
collected carefully by hand without resulting in lacerations.
It is important to note however, that the edges of these pieces of glass are no more
durable than normal glass and must therefore be handled with care when cleaning.
This type of glass has a rather unusual property as a direct result of its toughened
nature. When the glass takes an impact that does not immediately shatter the piece,
it “stores” that stress in the glass layers. This stress “storage” is invisible and
unmeasurable, but it is there nonetheless.
The storing of a stress is only temporary. If the glass suffers a sufficient impact and
the stress is stored, it will one day be released. There is no way to measure when
this release will occur, it could be after a few minutes, or it could be years later. When
the stored stress is released the glass will spontaneously shatter. This could occur at
any time, even when the machine is off and nobody is near it.
On extremely rare
occasions a glass door will “explode”. This is a rare but entirely
normal property of the glass, and although pieces of shattered glass may travel
several metres, if they do contact bare skin they should not cause injury (even if you
are directly in front of the explosion). It is important that any contaminated product be
thrown away.
Toughened Safety glass is also commonly found in the building industry and the
automotive industry (for side windows) and displays the same properties there.
The alternative is to have glass that can be very dangerous when broken, or worse,
could chip off and fall onto the food within (without being noticed). It is the opinion of
Roband Australia that this glass is superior to both “Clear Float” and “Ceramic” glass
with regards to function and safety. If glass doors are a concern a set of stainless
steel doors may be purchased (contact your supplier).