Feet | Red Box DVD Machine Feet | Custom Rubber Feet
Rubber feet for Red Box DVD Machines made from transfer molds
- Industry: Material Handling Industry
- Application: Goes on the bottom of Red Box DVD machines
- Process: Transfer molded
- Material: EPDM
- Highlights: Standard metal sink washer encapsulated, High volume production
Qualiform is a rubber products molding company that offers quality rubber products. We custom make the items you need using compression molding, custom transfer molding, custom rubber injection molding, and rubber to metal bonding. Best of all, our years of experience ensure we understand the rubber products industry and can help you design the best possible product to suit your needs.
We take pride in our process. We start by gaining a clear understanding of what you need and then we design a process for creating that product. We use quality materials and ensure every product is uniform and suitable for your usage, all for a great price.
Rubber Transfer Molding
The rubber transfer molding process is ideal to produce both solid rubber parts, rubber part with inserts and parts that require bonding rubber to metal. Rubber transfer molding combines the advantages of injection molding with the ease of compression molding. Transfer molding is the ideal process for forming rubber products that require:
- Exact positioning
- Bonding rubber to fragile metal parts – such as wire
- Mold designs that contain multiple cavities and can trap air
- Intricate parts with lower volume requirements
The Rubber Transfer Molding Process
The process of transfer molding involves pushing unvulcanized rubber through sprues into a heated mold. Similar to compression molding, transfer molding requires raw material preparation into pellets and/or pre-forms.
Rather than placing the preform in the mold cavity, the rubber pre-form is placed in a chamber “pot” at the top of the mold then placed in a press. In the pot, the material is compressed by a heated plunger and transferred through sprues into the cavity below. The plunger is kept in place until the preform takes on the shape of the mold and the rubber is vulcanized. The part cures, hardens, cools, then is ejected. Excess cured rubber left in the pot, is removed, mold cavities are cleaned and the next molding cycle begins.
When transfer molding is used for rubber to metal bonding or over molding, the components are loaded into a heated mold either by hand or using a loading fixture. Material is loaded into the well pot of the transfer mold. The mold closes and the heated rubber is then transferred through the runner and gate sprues into the mold cavities and around the metal insert. Under pressure and elevated temperatures, the rubber cures/vulcanizes and parts are removed.
The rubber transfer mold consists of a piston, well pot, sprue plate, cavity plate, and a base plate with a knock-out system used to eject the parts after molding.