Kaolin/Calcined Kaolin/MetaKaolin Suppliers & Manufacturers

Your Trusted Source for High-Performance Calcined Kaolin (Metakaolin) in India

Manufacturers and Suppliers of Kaolin Clay/China Clay (Al₂Si₂O₅(OH)₄)

HTMC Group is a leading manufacturer and supplier of kaolin clay in India. We take pride in providing our customers with exceptional quality kaolin clay products that meet the diverse needs of various industries. Our commitment lies in providing exceptional quality, technical expertise, and a customer-centric approach that sets us apart. Our advanced infrastructure and unwavering commitment to quality ensure that our kaolin clay products meet the highest standards of purity and performance. Our dedication to innovation and customer satisfaction has established us as a trusted partner for businesses seeking reliable kaolin clay solutions.

What We Do

At HTMC Group, our primary focus is on extracting and processing kaolin clay to create a superior product that meets various industrial requirements. Kaolin clay, scientifically known as hydrated aluminum silicate, has the chemical formula Al₂Si₂O₅(OH)₄. This versatile mineral undergoes a meticulous manufacturing process to ensure it adheres to the stringent quality standards of our clients. Our core expertise lies in the meticulous processing and supply of kaolin clay, also known as hydrous aluminum silicate. We source premium raw kaolin clay from carefully chosen mines. This raw material undergoes a series of well-defined processing steps in our state-of-the-art facilities. This meticulous approach ensures consistent quality, controlled particle size distribution, and optimal purity in every batch of kaolin clay we deliver. By prioritizing these aspects, we can tailor our kaolin clay offerings to the specific requirements of each valued client, guaranteeing an ideal fit for their unique applications.

Enquire Now

Types Of Kaolin

  • Hard Kaolin

  • Soft Kaolin

  • Calcined Kaolin

  • Delaminated Kaolin

  • Water-Washed Kaolin

  • Surface-Modified Kaolin

Exploration & Extraction:
  • The kaolin deposits are first located through geological surveys and sampling. Once a viable deposit is found, the land is cleared, and the overburden (the surface material) is removed to expose the kaolin ore.
  • Mining can be done through open-pit methods where heavy machinery is used to extract large chunks of kaolin-rich clay from the earth.
  • Some deposits are extracted using hydraulic mining techniques, where water under high pressure is used to wash the kaolin into a slurry.

    • Slurry Formation:
  • The mined kaolin clay is transported to the processing facility, where it is first mixed with water to form a slurry. This process, called blunging, involves mechanical agitation to break down the kaolin lumps into smaller particles and suspend them in water.
  • This slurry is then passed through a series of screens to remove impurities such as sand, quartz, and organic materials.

    • Particle Size Control:
  • The kaolin slurry is classified using hydrocyclones or centrifuges to separate fine particles from coarser materials.
  • Fine kaolin particles are further refined while coarse particles may be returned to the blunger or discarded depending on quality.
  • At this stage, the kaolin is screened and filtered to ensure uniformity in particle size for different applications.

    • Gravity Separation:
  • The next step involves centrifugation to separate kaolin from heavier materials based on density. In this process, heavier particles like sand are settled out, while the lighter kaolin remains suspended.
  • For highly refined kaolin products, magnetic separators may also be used to remove iron or other metallic impurities.

    • Water Removal:
  • Once the kaolin has been purified, the water content is reduced by mechanical means such as rotary vacuum filters or filter presses.
  • The resulting kaolin cake is further processed to achieve the desired moisture content.

    • Heat Treatment:
  • In some cases, kaolin undergoes a process known as calcination, where it is heated in a kiln at temperatures between 1,000 to 1,200°C. This removes water molecules from the kaolin structure and changes its physical properties.
  • Calcined kaolin is used in applications requiring enhanced brightness, hardness, and reduced shrinkage, such as in high-grade paper, paints, and advanced ceramics.

    • Coating & Surface Treatment:
  • To improve the performance of kaolin for certain applications, manufacturers often apply chemical treatments such as surface coating with dispersants, surfactants, or coupling agents.
  • For example, treated kaolin is used as a functional filler in plastics or rubber, where surface treatments help enhance compatibility with polymers.

    • Final Moisture Reduction:
  • After dehydration, the kaolin is dried in rotary dryers or spray dryers to achieve the required moisture content (typically less than 1%).
  • The dried kaolin is then milled into a fine powder using various grinding techniques such as hammer mills, ball mills, or air classifier mills to meet the particle size specifications of different industries.

    • Final Product Handling:
  • Once the desired particle size and moisture content are achieved, the kaolin powder is packaged in bulk bags or smaller sacks, depending on the end-use requirements.
  • The product is then shipped to customers in various industries, including paper manufacturing, ceramics, rubber production, and others.

    • Enquire Now

    Industrial Applications of Kaolin Clay

    Kaolin clay is a highly versatile industrial mineral with a vast array of applications across various sectors. Its unique properties, including whiteness, fineness, and chemical inertness, make it a highly sought-after material. Here's a glimpse into some of the prominent applications of kaolin clay:

    1. Paper Industry: In paper production, kaolin clay plays a crucial role in achieving high-quality paper. It enhances brightness, opacity, and printability, contributing to a superior finished product.
    2. Ceramics Industry: The ceramics industry heavily relies on kaolin clay in the manufacturing of ceramics, tiles, and sanitaryware. It contributes significantly to the strength, whiteness, and overall texture of these products.
    3. Paints and Coatings: Kaolin clay serves as a key filler and extender in paints and coatings. It improves opacity, consistency, and texture, ultimately leading to a more aesthetically pleasing and functional product.
    4. Plastics Industry: Kaolin clay finds valuable use as a filler and reinforcing agent in the plastics industry. Its presence enhances the strength, dimensional stability, and heat resistance of various plastic products.
    5. Fire-Resistant Cables: Kaolin is used as a filler in fire-resistant cables due to its non-combustibility and heat-resistant properties, helping to enhance the fireproofing of electrical wiring.
    6. Thermal Stability: In applications requiring high thermal stability, such as ceramics, refractories, and high-performance paints, kaolin maintains structural integrity at high temperatures.
    7. Insulation (Bad Conductor of Electricity): Kaolin is a poor conductor of electricity, making it ideal for use in insulating materials, particularly in electrical components and devices to prevent electric currents.
    dolomite-mountains

    Variety is Key A Spectrum of Kaolin Clay Products to Meet Your Needs

    • Calcined Kaolin Clay: This type undergoes processing at high temperatures, resulting in enhanced whiteness, brightness, and oil absorption properties. This makes it ideal for applications requiring superior brightness and oil control.
    • Hydrous Kaolin Clay: This variety retains its inherent water content, offering superior plasticity and exceptional bonding properties. Hydrous kaolin clay finds its niche in applications where these characteristics are crucial.
    • Air-Classified Kaolin Clay: This specialized type undergoes a meticulous air classification process. As a result, it achieves exceptional fineness and a tightly controlled particle size distribution. Air-classified kaolin clay is particularly suited for applications demanding a highly consistent and fine particle size.

    HTMC Group offers a range of high-quality kaolin products:

    • Hydrous Kaolin Lumps: Naturally occurring kaolin clay, known for its purity, used in various industries such as ceramics and paper.
    • Hydrous Kaolin Powder: Finely ground kaolin that is washed and processed for applications in paints, plastics, and rubber.
    • Calcined Kaolin: Heat-treated kaolin that offers enhanced brightness and durability, ideal for high-performance coatings, ceramics, and plastics.
    • Meta Kaolin: A calcined form of kaolin used as a cement additive to improve the strength and durability of concrete.
    • China Clay: Unwashed kaolin, primarily used in ceramics and other industries requiring natural clay.

    Powder mesh available

    200
    300
    325
    400

    Packing Available

    packing bag icon

    5kg Packing Bag

    packing bag icon

    25kg Packing Bag

    packing bag icon

    50kg Jumbo Packing Bag

    Contact Us

    Mail Us:- [email protected]

    Call Us:- +91 33 2226 8228, 98114 09161

    Get in touch with us!