{"id":82614,"date":"2026-07-30T08:37:30","date_gmt":"2026-07-30T08:37:30","guid":{"rendered":"https:\/\/ptfe-machinery.com\/?p=82614"},"modified":"2026-07-30T08:38:22","modified_gmt":"2026-07-30T08:38:22","slug":"non-metallic-cold-pressing-equipment-ptfe","status":"publish","type":"post","link":"https:\/\/ptfe-machinery.com\/ru\/non-metallic-cold-pressing-equipment-ptfe\/","title":{"rendered":"Non-Metallic Cold Pressing Equipment for PTFE Rods, Tubes and Gaskets"},"content":{"rendered":"

SUKO non-metallic cold pressing equipment compacts PTFE powder into rod billets, tube billets, gaskets, sealing rings and other custom molded parts.<\/p>\n

One PTFE compression molding press is not limited to one product. If the press capacity, platen size and stroke are suitable, different products can be manufactured by changing the mold, mold core or mandrel. The powder charge and pressure program are then adjusted for each product.<\/p>\n

How Does PTFE Cold Pressing Work?<\/h2>\n

PTFE does not need to melt during compression molding. The basic process includes:<\/p>\n

    \n
  1. Load PTFE molding powder into the product mold.<\/li>\n
  2. Apply cold pressure, holding time and controlled pressure release.<\/li>\n
  3. Remove the PTFE green preform from the mold.<\/li>\n
  4. Sinter it in a programmable furnace.<\/li>\n<\/ol>\n

    Conventional PTFE compression molding normally uses unsintered molding powder. Pre-sintered granular resin is more closely associated with PTFE ram extrusion and automatic material feeding.<\/p>\n

    What Can One PTFE Molding Press Produce?<\/h2>\n

    Compression-Molded PTFE Rods and Billets<\/h3>\n

    A cylindrical mold can produce PTFE rod billets in different diameters and lengths. These billets can be machined into large seals, valve components, electrical insulators and other precision parts.<\/p>\n

    View Large-Diameter Compression-Molded PTFE Rod Billets<\/a><\/p>\n

    \"Large-Diameter-Molded-PTFE-Rod\"
    Large-Diameter-Molded-PTFE-Rod<\/figcaption><\/figure>\n

    Compression-Molded PTFE Tubes<\/h3>\n

    A central mandrel creates the tube bore. Changing the outer mold and mandrel changes the OD, ID and wall thickness.<\/p>\n

    View Custom Compression-Molded PTFE Tubes and Tube Billets<\/a><\/p>\n

    \"Molded-PTFE-Tubes\"
    Molded-PTFE-Tubes<\/figcaption><\/figure>\n

    Compression-Molded PTFE Gaskets and Rings<\/h3>\n

    An interchangeable ring mold can produce gaskets with different outside diameters, inside diameters, thicknesses and cross-sectional shapes.<\/p>\n

    Finished gaskets can be supplied for installation. Thick ring blanks can also be machined into valve seats, sealing rings, wear rings and pump components.<\/p>\n

    View Compression-Molded PTFE Gaskets and Ring Blanks<\/a><\/p>\n

    \"Molded-PTFE-Gaskets\"
    Molded-PTFE-Gaskets<\/figcaption><\/figure>\n

    How Should the Equipment Be Selected?<\/h2>\n

    Automatic PTFE Molding Machine<\/h3>\n

    Automatic equipment is suitable for smaller products with stable specifications and repeat production. It can complete powder feeding, pressing, demolding and repeated production cycles.<\/p>\n

    View the High-Precision Automatic PTFE Molding Machine<\/a><\/p>\n

    \"High-Precision
    High-Precision Automatic PTFE Molding Machine<\/figcaption><\/figure>\n

    Double-Acting PTFE Molding Press<\/h3>\n

    A double-acting press applies pressure from both ends. It shortens the pressure transmission distance through the powder and can improve compaction uniformity in taller tube billets, bushings and ring-shaped parts.<\/p>\n

    View the Double-Acting PTFE Bush Molding Press<\/a><\/p>\n

    \"Double-Acting
    Double-Acting PTFE Bush Molding Press for Industrial Applications<\/figcaption><\/figure>\n

    PTFE Gasket Molding Machine<\/h3>\n

    Different gasket sizes and shapes can be produced by replacing the product mold. After each mold change, the powder charge, molding pressure, holding time and pressure-release program are adjusted.<\/p>\n

    View the SUKO PTFE Gasket Molding Machine<\/a><\/p>\n

    \"PTFE
    PTFE Gasket Molding Machine<\/figcaption><\/figure>\n

    Semi-Automatic Heavy-Duty Press<\/h3>\n

    Large rod billets, thick-wall tubes and large ring blanks require more powder and heavier tooling. Semi-automatic equipment makes powder loading, mold changes and green-part removal easier to manage.<\/p>\n

    How Is Press Capacity Calculated?<\/h2>\n

    Press capacity should not be selected from the product diameter alone.<\/p>\n

    The basic calculation is:<\/p>\n

    Required pressing force = effective projected area \u00d7 target molding pressure<\/strong><\/p>\n

    Equipment selection must also consider:<\/p>\n