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A Key Technique for Lean
Manufacturing How much
would you pay to double the capacity of your facility?
Or to raise the productivity of your employees and equipment by 50
to 100%? Most people say they
can’t afford to add new equipment and automation to make these
improvements. But, what if
you could get the same capacity increases and cost reductions at little or
no cost. And, even better what if it wasn’t that difficult to do?
I’d bet you’d be very interested!
Slashing time to change over from one product to another is often
the answer. Why Change Over Faster? Think about
how much time is taken in your operation changing over from one product to
another. In one machining
operation we worked with recently, the operation spent as much time
changing over from one product to the next as it did actually cutting
metal. They had to farm out
work to a competitor to meet their customers’ requirements.
Yet their expensive CNC machining centers were only actually
running product half the time. The
key for them was to change over faster.
By doing so, they nearly doubled the capacity of their facility.
They were able to bring all work back in house while decreasing the
lead time they were quoting to key customers. Changeover Secrets from the Indy 500 A while back
I had the misfortune of getting a flat tire on the way home from class.
I was pretty proud of myself.
It only took me 25 minutes to get back on the road. It
could have taken me a lot less time, but it took a while to figure out the
jack, find the lug nut key, and remove the lug nuts.
I was actually pretty happy with this changeover until I saw a tire
changeover at the Indy 500. They
changed 4 tires, filled the car with gas, washed the windshield, and gave
the driver a drink in less than 17 seconds!
What’s
the difference between my 25-minute tire change and the Indy 500 pit
crew’s tire change? First,
constant communication with the driver alerted the crew when the pit stop
was going to take place. By
the time the driver pulled in, everything was ready for a quick
changeover. Next, a
well-coordinated team attacked the car as they had practiced many times
before. Everyone knew where
to go, what they needed, and how to do their tasks.
The team members all had tools designed to do the job right and the
car was equipped to make the changeover faster.
For example, jacks are built into the car so a team member could
quickly attach a compressed air hose to a quick disconnect port to lift
the car. Another time saving
feature is that the tires only have one large lug (versus the standard
five I have on my car) and crew members had impact wrenches that enabled
them to complete the tire changes quickly. They even had an extended cup
holder to give the driver a drink without getting in the pit crew’s way. I
could have saved more than 24 minutes if I had the right tools in the
right place at the right time and if I was well practiced in changing over
a tire! Changeover Your Processes Faster Here’s how
you can changeover your processes faster by using the same techniques the
Indy pit crews use: 4
Organize the
workplace. Have everything in
its place and ready to go. 4
Eliminate
the need for tools and adjustments if possible. 4
Create
special tools if necessary. 4
Use a crew
where everyone knows their job. 4
Practice and
practice some more. 4
Measure your
speed so you keep trying to break your record. Results When we work with companies on changeover reduction, they are typically able to cut changeover time by 75%. How much additional manufacturing capacity would your company gain if you were able to convert 75% of your set-up time into production time? Benefit
from Faster Product Changeovers ·
Increase
capacity. ·
Increase
productivity. ·
Make it
economical to run multiple products each day. ·
Improve
ability to level load the plant. ·
Improve
ability to service customers. Mike
Beauregard is the principal consultant for Resource Engineering Consulting LLC, a
Connecticut-based training and consulting organization.
Resource Engineering Consulting LLC
specializes in helping manufacturing firms improve profitability.
Mike can be reached at 860-646-3002 or by e-mail at mbeauregard@reconsultingllc.com
.
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Resource Engineering Consulting LLC. All rights reserved.
Revised: June 02, 2003