Products

Rubber Mixing and Calendaring Rolls

Rubber Mixing and Calendaring Rolls are precision-engineered rolls designed for use in rubber processing machinery, specifically for mixing, blending, and forming rubber compounds. Manufactured from high-quality forged steel or chilled cast iron, these rolls feature high surface hardness, excellent wear resistance, and superior thermal conductivity—ensuring efficient heat transfer and consistent processing.

Mixing rolls are used in two-roll mills or open mills, where they provide thorough and uniform blending of raw rubber, additives, and chemicals. Calendaring rolls, on the other hand, are used in calendaring machines to convert rubber compounds into thin sheets or coatings with precise thickness and surface finish.

All rolls are dynamically balanced and can be custom machined with smooth, grooved, or textured finishes based on specific process requirements.

  • High wear resistance and thermal stability
  • Precision ground for smooth and uniform processing
  • Excellent heat transfer for efficient temperature control
  • Available in various surface finishes and hardness levels
  • Customizable to fit different machine configurations

Rubber Mixing and Calendaring Rolls are widely used in the rubber, plastic, and polymer processing industries. Applications include:

  • Rubber Mixing Mills – For blending natural and synthetic rubber with fillers, oils, and chemicals
  • Calendaring Machines – For producing rubber sheets, films, and coated fabrics
  • Tyre and Tube Manufacturing – Preparation of tread rubber, inner liners, and ply sheets
  • Conveyor Belt Production – Uniform calendaring of rubber compounds for conveyor belt layers
  • Rubber Hose and Gasket Plants – Precise sheet forming and compound mixing
  • Automotive and Industrial Rubber Goods – For parts like seals, mats, and molded components
  • These rolls are critical for achieving uniform compound quality, consistent sheet thickness, and optimal performance in downstream rubber forming and vulcanization processes.

    • Carbon Silicon Manganese Nickle Chromium Molybdenum Hardness Tensile Strength
    Shell 2.90-3.30 1.00-Max 0.50-1.00 1.00-2.50 1.00-1.50 0.25 65-75 350-500
    Core 3.10-3.50 1.50-Max 0.60-0.90 0.40-1.00 0.25-0.50 - 30-40 350-500
    Shell 3.20-3.50 1.00-Max 0.50-0.70 1.00-3.50 1.20-1.80 0.25-0.50 75-85 350-500
    Core 3.20-3.50 1.50-Max 0.60-0.90 > = 1.00 0.25-0.50 - 30-40 350-500