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Liquid Injection Molding

Silicone Foot Component Used in the Manufacture of Medical Exam Tables & Chairs

C & M Rubber Co. was contracted by a manufacturer of medical equipment to mold a silicone foot shown here. The foot is installed on the supporting legs of their examination tables, and is designed to prevent scuffing of tile or linoleum floors, or skidding on commercial carpeting.

Originally this job was tooled as a transfer mold consisting of 49 cavities; however after years of service, the tool was scheduled to be reworked to correct a registration issue that had developed over time. It was decided that retooling for liquid injection molding (LIM) was more cost effective, and would avoid price increase to the customer. The LIM parts eliminated a direct labor cost and the expense of cryogenic de-flashing of the silicone foot.

Composed of LR 3003/60 Shore A Durometer silicone rubber, the foot was manufactured on our Boy 22 liquid injection molding unit, which features a fluid automation pump set. This advanced manufacturing process allowed us to meet tolerances of ±.015".In addition, we were also able to exactly match the customers Pantone color specification.Produced in blanket orders, we currently manufacture over 100,000 pieces annually.

To learn more about this project, or the processes used to manufacture it see the table below or contact us directly.

Silicone Foot
Sensor Encapsulation
>Silicone Foot
Boy-22-Liquid-Injection-Molding-Unit.jpg Fluid-Automation-Pump-Set.jpg

Liquid Injection Molding Project Highlights

Project/Product Name Medical Exam Table Silicone Foot
Project/Product Description To prevent scuffing of tile or linoleum floors or skidding on commercial carpeting, a manufacturer of medical equipment designed a silicone foot to be installed on the supporting legs of their examination tables.
Liquid Injection Molding Capabilities Applied/Processes Primary: Liquid Injection Molding (LIM) with 60 Shore Shore A Durometer rubber
Secondary:Pantone color matched to customer specification
Equipment Used to Manufacture Part Boy 22 Liquid Injection Molding Unit with Fluid Automation Pump Set
Overall Part Dimensions 2.234" L x .343 W x .969 H
Tightest Tolerances +/- .015
Material Used LR 3003/60 Shore A Durometer
Material Finish Matte Finish
Industry for Use Medical Equipment
Volume 100,000 + / Year
Delivery/Turnaround Time Weekly- Just In Time Delivery
Delivery Location USA - Ohio
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