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3Com adds thermoformed plastic tray to its 'network'

Computer communications gear maker 3Com replaces a variety of materials with a plastic thermoformed tray that protects shipments of its network adapter cards and cuts manual packing time by half.

A 3Com employee scans a serial number on an adapter card. That information is entered into the computer at this workstation
A 3Com employee scans a serial number on an adapter card. That information is entered into the computer at this workstation

When a 3Com original equipment manufacturer customer expressed concern about the number of packaging materials used in cases of 3Com's network adapter cards, the networking products manufacturer searched for an alternative that would limit the number of materials in each case yet still protect the cards during shipment.

In September, the Santa Clara, CA, company found a solution: 25-mil Pentastat(TM) SC8G/16 static control material from Klockner Pentaplast of America (Gordonsville, VA). KPA extrudes polyethylene terephthalate glycol-modified resin supplied by Eastman Chemical (Kingsport, TN). The material is topically coated on one side to deliver the necessary static properties. Rolls of sheet are shipped to Universal Protective Packaging (Mechanicsburg, PA) for thermoforming into 27"L x 191/4"W trays with about a 11/2" depth of draw. UPP ships trays to distributor xpedx (Hayward, CA). Xpedx sets up shipping cases and packs trays in them, delivering the cases to 3Com on a just-in-time basis.

Each one-piece tray holds 10 adapter cards in 10 cavities arranged in a 2x5 pattern. While card size varies slightly, most measure 3"x5". 3Com employs the trays for about 25 different types of network adapter cards. The company ships cards in quantities of 20, 60 and 100, in the same cases that it receives from xpedx. The 20-count version holds two trays, the 60-count six trays and the 100-count 10 trays. Case heights vary to accommodate the different configurations.

The cards are used primarily by businesses to facilitate communication between computers via a network. "We sell to OEMs who install cards into their own computers, to distributors, and to what we call value-added retailers who install the cards and make computers made by other companies network-ready," explains Linda Jones, industrial engineer at 3Com. She estimates that the cards themselves typically sell for between $100 to $400, with the top sellers at the $100 end. While she wouldn't divulge specific volumes, she says the Santa Clara facility alone makes more than one million of these cards every month. She says there are 3Com locations around the globe that also produce them.

Previous limitations

"Our old packaging process required the assembler to set up a shipping case, add polyurethane cushion pads, erect corrugated dividers, then place each card into a static shielding bag," explains Jones. Then the assembler had to fold over the top of the polyethylene-based bag and place the bagged card into one of the slots created by the divider. One or two dividers and PU cushion pads were used, depending on what was being shipped in that case. That meant, for example, that a 100-count case required more materials than the 60- and 20-count versions.

The packing process was time-consuming for 3Com. And the combination of protective packaging materials in each case posed handling and discarding challenges for 3Com's customers.

To explore better packaging alternatives, 3Com put together a team that included Jones, Ed Aguilar, component engineer in charge of packaging materials, process engineer Pram Parekh and purchasing analyst Laurie Trujillo. They worked closely with xpedx's Joe Farned, Universal's Jim Breakey and Eric Sharbaugh and Klockner's John Campbell.

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