Compression Molding Press: A hydraulic press designed exclusively for compression molding, the most widely used production method for molded rubber products. Compression molding is ideal for low to medium volumes and can be used for the largest variety of part sizes and materials, including high-cost materials and applications that demand extreme hardness. It is a very efficient, low-waste method that offers the simplest process, the lowest investment, and the greatest flexibility. Compression molding generally results in lower amounts of scrap. It does not consume excess rubber in the runner of an injection mold, or in the pot of a transfer mold.
Transfer Molding Press: A hydraulic press designed for transfer molding, an automated operation that combines the compression and injection-molding processes. Transfer molding allows the molding of intricate parts while providing highly accurate dimensional control for low to medium production volume requirements. The cycle times are generally longer than injection molding, however, they can be very cost-competitive. A transfer molding press can also reduce the cure time by heating the material before it reaches the mold. The material can be and is forced into a closed mold by means of a hydraulically operated plunger, or by using the compressive force of the press in combination with tooling with an internal transfer pot.
Composite Molding Press: A hydraulic press that molds two or more materials in the same cavity, in the same shot, with a combination of transfer and compression molding.
Lamination Press: A laminating machine is used to bond two or more thin sheets of material together by means of physical pressure. Lamination presses are used in the manufacture of printed circuit boards, plastic cards such as credit cards or security IDs, and furniture manufacturing.
Column Press: A column press, also known as a four-post or 4-post hydraulic press, is designed with a hydraulic cylinder at each corner of a square or rectangular platen. Column presses can be designed as either up-acting or down-acting for compression or transfer molding, bonding, or forming a wide range of materials.
C-Frame Hydraulic Press: A C-Frame hydraulic press, also known as a c-style hydraulic press, or a gap frame hydraulic press has a frame configuration that resembles a “C.” The C-frame hydraulic press is designed to have a minimal footprint on the shop floor. Other advantages of C-frame hydraulic press construction include an increased open work area, which increases accessibility. C-frame hydraulic presses are used to form a wide range of materials, including rubber, plastics, and composites.
H-Frame Hydraulic Press: Commonly known as a 2-column or 2-post hydraulic press, an H-Frame hydraulic press has a construction style that resembles the letter H. An H-frame hydraulic press can typically field multiple press applications simultaneously. French manufactures a complete H-frame hydraulic press line from 3 to 2,000 tons, serving the rubber, plastics, composites, and printed circuit board markets.
Platen Press: A hydraulic press designed with platens, the flat steel or cast iron plates that apply heat and pressure to a mold. Platens have a certain footprint depending on the capacity/tonnage of the hydraulic press. Platens can be designed to either cool or heat the molded material with electric, oil, steam, or advanced thermal technology.
Post Press: This basic hydraulic press design utilizes four corner posts to support and guide the press platens and bolster assembly during the forming process. Presses can be supplied with either 2-post or 4-post design.
Slab Side Hydraulic Press or Straight Side Hydraulic Press: Typically this style of hydraulic press, also known as a 2-post press or side plate press, uses solid side construction to guide press and plate operation in larger applications. Slab-style construction keeps press components properly aligned, within specified tolerances, and minimizes deflection. French sideplate hydraulic presses feature a temperature-compensated gib-guided design.
Bench or Laboratory Hydraulic Press: A smaller-sized hydraulic press suitable for research and development, prototyping, or laboratory use.
Vacuum Press: A hydraulic press with vacuum-enclosed platen working areas to remove air, gas vapors, and fumes during the forming process. A vacuum-style hydraulic press ensures consistent material flows, as well as precise control over temperature and pressure.
Window Frame Hydraulic Press: A hydraulic press with a large open feed area, or window, designed especially for larger dies, or where access to the work area is important. A window-style hydraulic press offers minimal deflection and optimal crosshead parallelism.
Pneumatic Press: Unlike a hydraulic press, a pneumatic press is powered by air. These types of presses can perform pressing, forming, and shearing but not to the extreme pressures that are capable of a hydraulic press.
Coining Press: A coining press is a type of metalworking press that performs precision stamping. This type of press is often used when a high relief or other very fine features are required in the part.
Deep Draw Press: A deep draw press is another type of metalworking press and is used to form parts from sheet metal. During the deep drawing process, a piece of sheet metal is radially drawn into a forming die and mechanically punched into the desired shape.