Safer Saws - Hollymatic 2021 - 2

According to Victor Guynn, director of
engineering at Hollymatic, the inertia of the
band saw's wheels, the driving force behind
the blade, was the first challenge they
needed to address for the Defender 4000.
" Normally the wheels are 17 lbs. to 20 lbs. a
piece and they're spinning about 1100 rpm, "
Guynn says. " You have to find a big enough
motor to stop that inertia once it starts
spinning. We were able to find a proprietary
motor that we had made for us. Then we
coupled it with a gearbox to gain more
torque. "
Once the motor and gear box became a
part of the Defender 4000 make-up, Guynn
and his team found the blade stopping in
around 100 milliseconds. Guynn wanted the
blade to stop faster to ensure the highest
level of safety. Traditional, heavier stainlesssteel
wheels, especially the top wheel
which has no braking mechanism, equaled
significant inertia. With the weight allowing
the unchecked top wheel to continue
spinning after the bottom wheel stopped, the
blade still traveled roughly 10 ft.
The Hollymatic team consulted Chris Rupp,
vice president of beef operations at Tyson
Foods, regarding wheel weight and figured
out a way to lighten them. " It lowered the
inertia by three times, " Guynn says.
and their teams
received worker
safety awards
at Tyson Foods'
Dakota Dunes,
SD, offices.
Once the team took care of
stopping the wheels in time,
they fixed their energy on
the vision system sending
the message to " stop the

Safer Saws - Hollymatic 2021

Table of Contents for the Digital Edition of Safer Saws - Hollymatic 2021

Safer Saws - Hollymatic 2021 - 1
Safer Saws - Hollymatic 2021 - 2
Safer Saws - Hollymatic 2021 - 3
Safer Saws - Hollymatic 2021 - 4
Safer Saws - Hollymatic 2021 - 5