Bermar Associates, Inc. manufactured multiple sizes of overmolded steel and urethane seals for the materials-handling industry. These seals are used in pneumatic applications.
The process involved several stages. Customer-supplied steel plates are lightly sandblasted with 400-600 grit material to produce a matte-surface finish. Then, the plates are cleaned and primed, followed by the application of an adhesive. The treated plates are heated in an oven to activate the adhesive for the injection molding process. The final stage requires overmolding the plates with urethane.
A 1-cavity mold was built for each size, including 6 inch, 8 inch and 10 inch parts. Depending on the size, the finished seals measure .875 – 1.1 inches in height with a material thickness ranging from .125 – .750 of an inch. The seals weigh between 2 – 5 pounds.
The fully-manufactured seals are bulk packed in cartons and shipped on pallets to the client facility within a 3 – 4 week delivery period. Successfully meeting ISO per print specifications and fulfilling our client’s expectations for quality, we manufacture 500 – 1000 seals per order.
