Spin Pack Filters

A Spin Pack Filter Screen, also known as a polymer pack filter, is a crucial component in the melt filtration and extrusion process. It consists of multiple layers of wire mesh screens that are bound together using ferrous and non-ferrous borders. The finest filtration screen is typically placed in the center, with supporting screens of progressively coarser mesh facing the outer sides. This arrangement effectively prevents the mixing of foreign particles from the extrusion process, ensuring a clean extrusion for plastic and polymer processing machinery.

Nomenclature of Spin Pack Filters

Polymer pack filters are multi-layered wire mesh screens bound with ferrous and non-ferrous borders. The finest filtration screen is placed in the center, while the coarse mesh acts as a supporting screen facing the outer sides. These filters play a crucial role in the melt filtration and extrusion process, preventing the mixing of foreign particles and ensuring a clean extrusion for plastic and polymer processing machinery.

Nomenclature and Properties of Spin Pack Filters

At Royal Tern Industries, we manufacture high-quality Spin Pack Filters based on the customer's specifications and technical drawings. The filters can be single or multi-layered and made from SS 304, SS 304L, SS 316, or SS 316L wire mesh materials, with binding borders made of aluminum, copper, brass, or stainless steel.

The shape can be circular, D-shaped, square, oval, rectangular, or customized as per the user's requirements. The dimensions are crucial, and our filters are made to fit the spinneret of the extrusion machine with the right working tolerance, ensuring no leakage during the process.

Applications of Spin Pack Filters

Our Spin Pack Filters find widespread use in a variety of applications in the textile industry, particularly in the production of synthetic fibers and fabrics. One such application is the production of polyester oriental yarn, which requires high-quality filtration to remove any foreign particles and ensure the smooth and consistent flow of the molten polymer. Similarly, our Spin Pack Filters are also widely used in the production of polypropylene yarn, which is commonly used in the manufacturing of carpets, upholstery, and packaging materials. Other applications of our Spin Pack Filters include the production of nylon and acrylic yarn, as well as polypropylene spun-bonded non-woven fabrics, which find use in a variety of industries ranging from automotive to medical.

Filtration Media

There are two types of filtration media used in Spin Pack Filters depending on the application:

In order to meet the filtration requirements, the wire mesh can be either Plain Weave Mesh, Plain Dutch Weave Mesh, or Twill Dutch Weave Mesh.

Metal Fiber Sheet (Non-Woven): Metallic fiber felt is a high-performance filtration media that can withstand extreme temperatures and pressure while maintaining its filtering efficiency. This material is made of a combination of metal fibers and binders, which are compressed together to form a dense and durable structure. The result is a filter media with superior dirt-holding capacity, long service life, and excellent chemical resistance. Metallic fiber felt is commonly used in applications such as hot gas filtration, liquid filtration, and polymer filtration. Its high temperature and pressure resistance make it an ideal choice for industries such as petrochemicals, power generation, and aerospace, where filtration performance and reliability are critical.

Binding Border Material

The choice of binding border material is critical for Spin Pack Filters, with options including Aluminium, Copper, Brass, and Stainless Steel. The material grade must also be carefully considered, as using a cheaper or non-standard material could result in damage to the spinneret or the infiltration of foreign particles.

Spin Pack Filters can be made in various shapes, including circular, D-shaped, square, oval, rectangular, and other special shapes as per the specifications.

The dimensions of Spin Pack Filters are crucial to their functionality, as they are fitted onto the spinneret of the extrusion machine. Maintaining accurate dimensions and working tolerances is essential to ensure proper fit and prevent leakage during the process.


At Royal Tern Industries, we take pride in manufacturing high-quality Spin Pack Filters that undergo vigorous quality control measures and are available at the most economical prices. We offer customized filtration accessories to meet the specific needs of our customers from different industries, establishing ourselves as one of the leading manufacturers and suppliers of superior-quality spin pack filters.