+91 97129 62704

Range of Products
Twin screw uPVC & cPVC pipe plants uPVC Profile Lines WPC Profile and Board Lines PVC Compounding Lines PVC Blood Pouch and Medical Tube Lines HDPE/PPR Pipe Extrucion Line

From the Origin of PVC to Modern Granulation: How PVC-CPVC Granules Extrusion Machines Revolutionized the Plastics Industry

When a Scientific Coincidence Led to the Discovery of PVC

A material discovered purely by chance went on to spark a revolution and transform the world. We are referring to polyvinyl chloride, commonly known as PVC. In 1838, while experimenting with vinyl chloride gas, French physicist Henri Victor Regnault observed that exposure to sunlight caused the gas to transform into a white solid substance. This white solid was later identified as PVC. Several years later, in 1872, German scientist Eugen Baumann conducted similar experiments with vinyl chloride gas and arrived at the same results, independently reaffirming the discovery.

Although these two independent discoveries led to the identification of a new material, PVC, its commercial use did not become viable until 1913. In that year, German inventor Friedrich Heinrich August Klatte secured the first patent for the material. His method of polymerizing vinyl chloride relied on exposure to sunlight. In the decades that followed, companies around the world built upon Klatte’s patented process, experimenting with and advancing the practical applications of PVC.

From PVC Powder to Granules: The Evolution of Extrusion Technology and Rajoo Bausano’s Contribution

After years of continuous experimentation and development, PVC gradually reached a stage of maturity that made its commercial use possible. As PVC found increasing application across a wide range of industrial products, it became evident that using PVC directly in powder form was not practical. To achieve better quality, consistency, and ease of processing, the need arose to convert PVC into a more suitable, ready-to-use form, leading to the emergence of PVC granules. By pre-processing PVC into uniform granules, manufacturing processes became simpler and product quality more consistent and reliable. This transformation enabled large-scale production within the plastics industry and significantly expanded the scope of PVC applications. With the growing demand for PVC granules, the need for more powerful and reliable PVC granules extrusion machines also increased, driving the development of advanced systems capable of delivering continuous, uniform, and high-output granulation.

PVC granules extrusion machines brought a true transformation to the plastics industry. These machines simplified raw material processing and enabled faster, more stable, and large-scale production. As a result, manufacturers gained better control over product quality, reduced production costs, and achieved consistent, reliable granules for a wide range of applications. Consequently, the manufacturing of pipes, cables, profiles, and other PVC products became far more structured and efficient than ever before, reshaping the overall operational landscape of the plastics industry.

In this continuum of technological advancement, Rajoo Bausano has made a significant contribution to the field of PVC granules extrusion through its expertise and innovation. Keeping pace with the evolving demands of the industry, the PVC granules extrusion machine Granulex, developed by Rajoo Bausano, has enhanced the stability, uniformity, and reliability of PVC compounding and granule production. Its advanced extrusion technology, precise process control, and continuous production capabilities enable manufacturers to produce high-quality PVC granules efficiently. During large-scale production, Granulex has emerged as an effective solution for maintaining both quality and productivity, making it an integral part of the evolution of modern PVC granules extrusion.

Rajoo Bausano’s Granulex: Enhancing PVC Granulation with Patented MULTIDRIVE System and Advanced Technological Prowess

Rajoo Bausano offers high-performance granulation lines specifically engineered to cater to the diverse requirements of the PVC compounding industry. The Granulex line features a comprehensive set of components designed to produce high-quality PVC granules, including a robust extruder, precision die, automatic screen changer for recycled materials, die-face cutting system, water palletizer, and an efficient cooling unit.

At the heart of the Granulex line, the extruder incorporates Rajoo Bausano’s patented MULTIDRIVE system, enhancing energy efficiency while extending the gearbox lifespan. The system supports a wide output range from 200 kg/h to 3000 kg/h, providing flexibility for varying production scales. Granulation die heads are optimized for uniform polymer flow, and the quick-clamp design ensures easy cleaning and minimal downtime. Die plates, made from nitrided steel, are available in multiple configurations to suit different processing requirements.

The granulation head ensures precise pelletizing and uniform distribution of the polymer across the die plate. Engineered for quick opening and cleaning, it significantly reduces downtime. The cutting system includes a lateral air-cutting unit with forced air circulation and a soundproofed fan, conveying cut granules through stainless steel piping to the cooler efficiently.

Cooling is achieved through a stainless steel cooling plate with forced air generated by AC blowers. Granules pass over an inclined, drilled plate to ensure uniform airflow and temperature regulation, producing consistently cooled pellets. A chilled cyclone separator separates pellets from conveying air and fumes, ensuring clean and dry granules.

Further enhancements include adjustable granule separators and interchangeable nets, allowing precise control over granule size and consistency. Collectively, these features make the Granulex line a reliable, flexible, and high-efficiency solution for modern PVC granulation needs.

The GRANULEX PVC Compounding Lines Engineered to Produce High-Quality PVC Granules for Diverse Applications

The Granulex PVC compounding line is engineered to produce high-quality PVC granules suitable for a wide range of industrial and consumer applications.

  • Wire & Cable
    PVC granules are extensively used for telecom cables, automotive wiring, electrical cables, house wiring, as well as for soft insulation and protective sheathing applications.
  • Pipe Fittings
    PVC-CPVC granules are used for the moulding process to produce CPVC-PVC pipe & fittings. Better end product quality, color consistency, improved performance of fittings at application level and higher productivity of injection moulding machines if granules are used instead of powder.
  • Footwear
    Granules produced on the Granulex line are ideal for manufacturing shoe soles, uppers, insoles, unit soles, slippers, and straps, offering durability and flexibility required in footwear products.
  • Medical
    High-precision PVC granules are used in medical applications such as oxygen masks, IV tubes, blood bags, glucose bags, disposable tubing, and other medical components where consistency and reliability are critical.
  • Automotive
    In the automotive sector, PVC granules are used for fuel tubes, profiles, co-extruded strips, hoses for oils and fuels, gaskets, sleeves, door and window profiles, and various sliding and sealing components.
  • Food & Packaging
    PVC granules find application in packaging solutions such as bottles, blister packaging films, crown caps, and other packaging materials where formability and performance are essential.
  • Building & Construction
    Granules produced using Granulex are widely used in construction products including window profiles, weather stripping, conduits, pipes, garden hoses, PVC flooring, WPC doors, PVC laminates, shower curtains, and blackout curtains.
  • Toys & Novelties
    PVC granules are also used in the manufacture of toys, bookbinding materials, handbags, luggage, garden hoses, and advertising materials used for printing and decorative purposes.
  • Thermoplastic Rubber & Masterbatches
    The Granulex line also supports the production of PVC-based compounds used in thermoplastic elastomer applications, as well as granules for masterbatches and additive concentrates.

Driving the Future of PVC Compounding Through Innovation and Engineering Excellence

As the plastics industry continues to evolve, Rajoo Bausano remains committed to advancing its extrusion technologies to meet the demands of tomorrow. With a focus on innovation, reliability, and efficiency, the company ensures that its Granulex PVC granules extrusion lines stay at the forefront of industry standards. By continually enhancing machine performance, integrating cutting-edge features, and anticipating emerging trends, Rajoo Bausano empowers manufacturers to produce high-quality PVC granules with greater precision and consistency. This dedication to progress and excellence underscores Rajoo Bausano’s role as a trusted partner in shaping the future of PVC compounding and extrusion.