CLEVELAND—Barwell Machinery USA Inc. showcased various machines at the ACS Rubber Division's International Elastomer Conference, Oct. 12-15.
One machine on display was the Barwell Spin Trim Rubber Deflashing Machine, which has been in service for a few years but never previously displayed at a rubber show. Barwell also showed two additions to the machine.
The company said the Spin Trim provides a quick and cost-effective method of deflashing small- to medium-size rubber parts.
“The Barwell Spin Trim is a deflashing machine, which is very well-suited for seal, O-ring, gasket-shaped parts that have a tear trim, and you need to remove the flash from the part. It does so mechanically without use of cryogenics,” Barwell Sales Engineer Bob Gomola said.
Some companies have a need for deflashing, he said, and their mold quality with a tear trim is decent enough where cryogenic deflashing and the expense involved with the nitrogen is not necessary for a good final part.
“This fills a perfect niche for that,” he said.
The Spin Trim eliminates the safety risk and labor-intensive time experienced with a manual trimming process, Barwell said. It also can be used as a cost-reducing first stage, before cryogenic deflashing, for items with excessive flash.
While the cryogenic units rely heavily on liquid nitrogen, that isn't the case with Barwell's equipment.
“Nitrogen becomes very expensive when you're using it continuously for large production runs for deflashing,” he said. “The savings comes in with the Spin Trim where ... there is no requirement for nitrogen, and all that expensive nitrogen is saved.”