By Rhea Wessel
Mar. 9, 2009—C-parts (small screws, pegs and bolts used in production) represent a large portion of procurement costs for companies since it's difficult to order new C-parts at the right time to ensure the proper amount always remains on hand. To help make sure it always has the C-parts it needs,
Müller Martini Bookbinding Systems—a developer and manufacturer of binding equipment for adhesive-bound books, located in Felben, Switzerland—has adopted an
RFID system developed by C-parts supplier
SFS unimarket and RFID solution providers
Intellion and
Identec Solutions.
SFS unimarket realized long ago that it needed to make it easier for customers to buy its wares. In order to support its sales, the company had been offering an automated solution for replenishing C-parts. The system employs a weighing scale to calculate the number of small parts on hand, then submits orders for refills. It frequently weighs the small containers, and calculates the number of parts stored in each container by subtracting the weight of an empty container from that of one filled with parts, then dividing by the average weight of an individual component.
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Each parts container is fitted with an active RFID tag.
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The system has drawbacks, however: Each storage area for containers must be outfitted with a weighing system that is expensive, time-consuming to implement and connected to the network via cables. Thus, if a company wants to move its storage racks, the cables need to be disconnected and reconnected—a labor-intensive and tedious process.
Considering these obstacles, SFS unimarket wanted to develop a wireless system that would be easy to implement, and that would facilitate its customers' orders. To that end, the company teamed up with Intellion and Identec to develop
turnLOG, which was implemented at Müller Martini in December 2007. Intellion designed and provided the system using Identec's RFID technology, and Müller Martini is now using it on approximately 8,000 containers. SFS unimarket won the Swiss Logistics Award in late 2008 for the turnLOG system.
At Müller Martini's warehouse, an active, battery-operated RFID
tag from Intellion that functions at 868 MHZ is attached to one long end of each container of parts. The containers, which are rectangular and made of plastic, each fitted with an inner, plastic divider that can be set to different positions. After a container is loaded with a sufficient volume of small parts, it is set on the rack so the RFID tag is located at the back of the shelf.