Safer Saws - Hollymatic 2022 - 2

According to Victor Guynn, director of
engineering and development 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,
manager of customer development 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 2022

Table of Contents for the Digital Edition of Safer Saws - Hollymatic 2022

Safer Saws - Hollymatic 2022 - 1
Safer Saws - Hollymatic 2022 - 2
Safer Saws - Hollymatic 2022 - 3
Safer Saws - Hollymatic 2022 - 4
Safer Saws - Hollymatic 2022 - 5