Plunger in the context of Mute (music)

Transfer molding (BrE: transfer moulding) is a manufacturing process in which casting material is forced into a mold. Transfer molding is different from compression molding in that the mold is enclosed rather than open to the fill plunger resulting in higher dimensional tolerances and less environmental impact. Compared to injection molding, transfer molding uses higher pressures to uniformly fill the mold cavity. This allows thicker reinforcing fiber matrices to be more completely saturated by resin. Furthermore, unlike injection molding, the transfer mold casting material may start the process as a solid. This can reduce equipment costs and time dependency. The transfer process may have a slower fill rate than an equivalent injection molding process.

A ram press is a device or machine commonly used to press items with a mechanical ram, such as with a plunger, piston, force pump, or hydraulic ram. In food preparation, there are various kinds of ram presses:

The fruit ram press and cider ram press are both types of fruit presses that extract the juices out of the fruit through pressure. The second makes apple cider.

Pressed glass (or pattern glass) is a form of glass made by pressing molten glass into a mold using a plunger. Although hand pressed glass has existed for over 1,000 years, the use of a machine for pressing was first patented by Pittsburgh glass man John P. Bakewell in 1825 to make knobs for furniture.

The technique was developed in the United States from the 1820s and in Europe, particularly France, Bohemia, and Sweden from the 1830s. By the mid-19th century, most inexpensive mass-produced glassware was pressed (1850–1910). One type of pressed glass is carnival glass. Painted pressed glass produced in the early 20th century is often called goofus glass. The method is also used to make beads.