Inventory system
allows lean tool cribs
at Boeing's helicopter plant in Mesa, Ariz.
Boeing’s
manufacturing plant in Mesa, Ariz., has established control and
accountability in its tool cribs, drastically cut issue and return
time for tools, and created an extensive database of crib transactions
that is used in the cribs, as well as in purchasing, receiving,
accounting and other departments on the campus where Apache
helicopters are assembled.
Boeing
accomplished this with CribMaster, an inventory management system
created for managing tools and inventory in the manufacturing
environment. At Boeing, the all-inclusive, Windows-based CribMaster
system uses bar coding and a collection of manned tool cribs and
point-of-use dispensers to monitor tool inventory and usage, track
consumption, issue purchase orders and provide numerous reports at the
touch of a button.
"(It’s
imperative to) electronically track and have instant response, keep
track of who’s got what tool, where it is. You’ve got access to
all that information in a matter of seconds," says Bruce Briggs,
who oversees Boeing-Mesa’s six staffed tool cribs and its automated
tool dispensers.
Boeing, which
purchased CribMaster in December 1997, uses the system to tie together
its tool cribs and dispensers, as well as the campus’ electrical
tool recertification group, the tooling receiving group and the buying
group. The result is a faster, more accurate system of keeping track
of tools and inventory.
"It is a
system that maintains traceability and accountability for required
(portable perishable) tooling in the plant," says plant tooling
coordinator Clay Lonie.
The system changed
the way Boeing’s tool cribs operate, making them faster and more
dependable than the manual system that had been in place. Machinists
in the past signed tools in and out, or attendants entered each
tool’s number by hand into a computer. Now with bar coding, tools
are checked out in seconds using a wireless handheld scanner, and
there’s less room for error.
The process saves
time on the nearly 1,000 issues, returns and counts Boeing averages
every day.
"It’s
probably saving at least 20 to 30 seconds per transaction, and
that’s if somebody was good on the computer," Briggs
says.
Additional time is
saved tracking down tools that are checked out but are needed by
someone else at another machine. Briggs used to spend as much as a
half-day calling people and hoping that information about a tool’s
location was entered into the computer or scribbled on a piece of
paper somewhere. Now he checks all six tool cribs in about 30 seconds.
Once he locates the tool, he uses the bar code scanner go to where the
tool is and check it in, then go to the new machinist and check it
out. "It saves hours of time," Briggs says.
The ability to
locate tools quickly is the most remarkable change Briggs has seen.
Information, tied to the bar codes on Boeing-Mesa’s 25,000 different
types of tools housed in 26,000 bin locations, supplies the plant’s
buyers with everything they need to know to keep track of what’s in
the crib and, using order point data, order and receive
supplies.
"The buyer
receives this information directly from CribMaster and places the
order in almost a paperless system," Lonie says.
CribMaster creates
the purchase order using data about suppliers, order numbers, prices,
addresses and other necessary information. Not only is the ordering
process simpler, but the bin quantities are more accurate because the
system’s real-time transactions constantly keep track of what’s
getting used and what needs to be ordered.
When a major part
of the Apache assembly process had to be moved from one building to
another, Boeing administrators didn’t know if the crib in the new
building would support the new tasks. In the past, no one knew whether
what was in the new building’s crib would suffice or how it needed
to be stocked. This time, however, Lonie had a report in less
than half an hour that showed what had been used in the original crib
in the last year, what was available in the new building, and where on
the Boeing campus any of the other necessary items could be
found.
The cribs
weren’t keeping any of that information in the past because there
was no accountability; attendants knew how much sandpaper was leaving
the tool crib, but they didn’t track who was picking it up or how it
was used. Accountability saved Boeing money.
"We noticed a
decrease in usage," Lonie says, explaining that machinists who
used to pick up a few extra inserts or a couple more batteries than
needed now have cut out that practice.
Boeing can track
such changes using some of the more than 150 standard CribMaster
reports or by creating their own documents using Crystal Reports, a
report program that integrates into CribMaster.
Lonie asks
CribMaster for reports on weekly and monthly spending; about
individual jobs, machines or employees; or anything else he needs to
know. The reports can be special requests like the changed building,
or to ask specific questions like who’s using the most safety
glasses, where a certain tool get used, what has a certain employee
been working on, or where batteries go in early December.
"Through use
of Crystal Reports and the database, we can just about answer
anybody’s question," Lonie says. "You ask a question, the
system will answer it."
He also relies on
CribMaster’s scheduled reports, ones the company chooses to run on
certain schedules. For instance, each Monday morning, Lonie receives a
report showing which crimpers and strippers need to be certified that
week. The report tells who has the individual tool, where it is
being used and when it was issued. The information, which is passed to
shop floor managers, is useful not only in making sure tools are
recertified on schedule, but for meeting the needs of internal and
external audits.
It’s all about
information – and it’s all tied to the bar codes on employees’
name badges. The codes get scanned when employees pick up tools and
when they return them. They’re used at manned cribs, as well as at
each of the automated cribs stationed strategically around the Boeing
shops.
Through a
partnership with Remstar International Inc., CribMaster integrates
with Remstar automated tool dispensers to provide secure point-of-use
distribution points for tools. Boeing has two shuttles, six sentinels,
five vending machines and two vending lockers, all of which are close
to certain work areas so machinists don’t have to walk to a central
crib. Some of the dispensers allow items to be returned, and some are
for consumables. Machinists check out tools from the dispensing
machines using their bar-coded name badges in much the same way as
they do at a staffed tool crib.
The system is
updated automatically, as if the transaction had occurred in an
attended tool crib. The difference, Lonie says, is that "you’re
walking maybe 10 feet instead of maybe 300 feet."
As with the
attended crib, if a tool can’t be found in one of the automated
dispensers, CribMaster can locate one.
The ability to use
automated dispensers as well as attended tool cribs drew Boeing to
CribMaster.
"The reason
we went to CribMaster was because it provided a software platform that
would operate dispensing and a manual tool crib," Lonie says.
Boeing also knew
changes were ahead and that the new system would have to accommodate
those changes.
"We didn’t
want to get into a box with anybody who wouldn’t let us grow. With
CribMaster, people are constantly finding different ways to use
it," Lonie says.
This article provided by WinWare, makers of CribMaster
inventory management products. For more information, visit www.cribmaster.com.
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