Caterpillars Building Construction Products Division Improves and Stabilizes Product Availability
Susan Keene,
David Alberti,
Gary Henby,
A. J. Brohinsky,
Sridhar Tayur
Caterpillar, 954 Highway 42 East, PO Box 999, Clayton, North Carolina 27520
Caterpillar, 954 Highway 42 East, PO Box 999, Clayton, North Carolina 27520
Caterpillar, Technical Center, Building K, PO Box 1875, Peoria, Illinois 61656
SmartOps, One North Shore Center, Suite 400, Pittsburgh, Pennsylvania 15212
SmartOps, One North Shore Center, Suite 400, Pittsburgh, Pennsylvania 15212
keenesd{at}cat.com
alberti_dave_l{at}cat.com
henby_gary_l{at}cat.com
brohinsky{at}smartops.com
stayur{at}smartops.com
In 2001, Caterpillars Building Construction Products Division (BCPD) began a project to reduce and stabilize order-to-delivery times (termed product availability within Caterpillar) while reducing cost and inventory. Using a six-sigma method and a multiechelon inventory optimization model, BCPD sets dynamic inventory policies for assembled machines stocked at the assembly plant and for subassemblies and components stocked at the assembly plant and at supplier locations. The project has improved product availability, reducing the mean time for orders with identified customers by 20 percent and reducing the standard deviation of product availability for all orders by 50 percent. BCPDs initial implementation and resulting improved product availability enabled BCPD to win more orders (a two percent increase in revenues) and reduce total chain inventory by 16 percent, and it has motivated other Caterpillar manufacturing and assembly facilities to replicate this project across their supply chains.
Key Words: industries; machinery; inventory; production; multiechelon
Copyright © 2006 by INFORMS.