Rubber Molding Equipment
• 3 Rubber mills
(48”, 60” and 72”)
Mixing compounds and pre-extrusion warm-up.
• Physical-testing laboratory equipment:
Lab mill, Lab press, Rheometer with computer and SPC software, Tensile tester, Dielectric tester, Brittleness tester, Lab oven, etc.
• 2 Barwell Preformer
(ram extruder with cutter)
• 2 Screw-type extruders
• 1 Guillotine stock cutter
Rubber Injection Molding Equipment
• 8 Injection presses
4 – 200 Ton (18” square platens)
2 – 300 Ton (24” square platens)
2 – 450 Ton (30” square platens)
Rubber Molding Equipment for Shorter Runs
• 28 Compression presses
(1 electrically heated; 25 steam heated by
oil/gas fired boilers ):
• Platens: 18” square thru 36” square
• Tonnage: 78 tons thru 450 tons
• Used for compression and transfer molding
Common Rubber Compounds Are Made From
EPDM Rubber or Ethylene Propylene Diene
A synthetic rubber and elastomer characterized by a wide range of applications. EPDM is a very durable, high-density rubber making it a preferred material for products like gaskets, hoses and seals. The rubber is extremely resistant to heat, oxidation and weather due to its stable structure.
Neoprene, also called chloroprene, is commonly used in seals and gaskets, neoprene is an elastomer with an all-around good chemical and ozone resistance. When compared with other elastomers, especially other synthetics, neoprene does not have a single, superlative property that excels beyond the properties of others. The strength and usefulness of neoprene comes from its balance of qualities, instead of having extreme and particular qualities like other rubbers do.
Nitrile Rubber (NBR)
Nitrile rubber is a copolymer of butadiene and acrylonitrile. It is most commonly used in sealing products. NBR is extremely resistant to oil and is therefore used in seals that need to resist oils, fuels and lubricants. Many gaskets and other products that contact hot oils and fuels are made with NBR. The more nitrile in the product’s composition, the more resistant to oil it becomes at the expense of flexibility.
Viton Molding Rubber or what we call Fluorocarbon Elastomers
Viton FKM is DuPont-Dow Elastomer’s trade name for fluorocarbon elastomers. They respond very well with resistance to ozone, high temperatures, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals over a temperature range of -25°F to +400°F.
Silicone rubber is a polymer composed of silicon combined with carbon, hydrogen and oxygen. Materials made with this synthetic rubber are extremely resistant to heat and cold, withstanding temperatures ranging from -80ºF to 600ºF. Resilient and durable, silicone rubber materials resist prolonged exposure to sunlight, oxygen, ozone, moisture and UV light.
Butyl is a synthetic rubber, also referred to as isobutylene isoprene. Its true value is its impermeability to air and gases. Butyl is also very resistant to water and steam, which is why butyl rubber is used in sealants for damp proofing, rubber roof repair and rubber membrane maintenance.
Styrene Butadiene Rubber (SBR)
SBR is a synthetic rubber that is more resistant to abrasion than natural rubber. It stands up to heat and ages well. The higher the styrene content in the rubber, the harder and less flexible the product becomes.
Natural Rubber Products – Organic Isoprene
Natural rubber is an organic material but often has traces of other materials such as proteins, resins and inorganic materials are found in high quality natural rubber. It is harvested from the bark of tropical trees.
Rubber Milling & Extruders Done On Site
Our team of experts will work with you and your design to find the rubber with the exact properties suited for your product. We maintain a large inventory of raw materials in house and can custom craft rubber preforms and sheets based upon the client’s needs. Most of the rubber materials are not black and a variety of colors and scents can be added to your compound mixture.
Ready to get your rubber part made in the USA?