Basalt Air Slide Fabric
Basalt Air Slide Fabric

High Tension Basalt Filament Air Slide Fabric

Basalt fiber

Continuous fibers are drawn from natural basalt. It is a continuous fiber made of basalt material melted at 1450 ℃ ~ 1500 ℃ and drawn at high speed through platinum-rhodium alloy wire drawing bushings.

The color of pure natural basalt fiber is generally brown. Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material, which is composed of oxides such as silica, alumina, calcium oxide, magnesium oxide, iron oxide, and titanium dioxide. Basalt continuous fiber not only has high strength, but also has various excellent properties such as electrical insulation, corrosion resistance, and high-temperature resistance.

Compared with high-tech fibers such as carbon fiber, aramid fiber, and ultra-high molecular weight polyethylene fiber (UHMWPE), basalt fiber has the characteristics of high strength and high modulus of high-tech fiber, and basalt fiber also has good high-temperature resistance and oxidation resistance. , radiation resistance, heat insulation and sound insulation, good filterability, high compressive strength and shear strength, suitable for use in various environments and other excellent performance, and cost-effective, is a pure natural inorganic non-metallic material, is also new basic materials and high-tech fibers.

Basalt Filament Air Slide Fabric

DDF high tension Air Slide Fabric is a kind of belt canvas, mainly used for pneumatic conveying of cement, bauxite, carbon black, gypsum, grain, flour, etc. Special controllable air permeability helps to improve conveying efficiency while reducing pollution and ensuring the uniformity of mixed powders.

DDF provides high-quality basalt filament Air Slide Fabric/basalt Fluidized Fabrics for homogenous use in air-slip systems and high-temperature applications, up to 700°C.

Basalt air-slip cloth has the characteristics of smooth surface, equal air permeability, strong construction, good heat resistance, long service life, and perfect performance.

Basalt Air Slide Fabrics
Basalt Air Slide Fabrics


  • Thickness: 3~10mm can be customized.
  • Width: max. 2.4 meters.
  • Air permeability: can be customized as required.
  • Tensile strength: >5000N/4cm.
  • Operating temperature: -60°C to 700°C, maximum. Peak: 750°C.


  • The texture is clear, the size is stable, the tensile strength is high, and the materials are various, which can be selected according to different requirements.
  • Equal air permeability, and air resistance tolerance within ±10%.
  • High-temperature resistance, wear resistance, low hygroscopicity, corrosion resistance, low adhesion, never delamination, and long service life.
  • Smooth surface, 100% new material, no dust leakage, green product.
  • It is suitable for conveying materials with particle size <4mm, temperature <750℃ and moisture <2%.

Main applications

Basalt Filament Air Slide Fabric is used for air sliding or homogeneous use in some high-temperature occasions above 250℃.

The Basalt Filament Air Slide Fabric is mainly used as a supporting product for air chute and silo funnel for conveying dry powdery materials. It is widely used in horizontal conveying and silo boiling in cement, thermal power plants, alumina, bauxite, soda ash, gypsum, flour, and other industries.

Further Reading

Basalt fiber cloth

Basalt fiber cloth is divided into basalt fiber roving and basalt fiber fine gauze. Untwisted rovings are bundled from parallel strands or parallel monofilaments. The monofilament diameter of basalt fibers used in the production of rovings varies from 3 to 23 μm. Basalt fiber fine gauze refers to various fabrics woven with basalt fiber yarns less than 150TEX.

Basalt fiber roving fabric

Basalt fiber roving

Basalt fiber roving is made up of parallel strands or parallel monofilaments. The monofilament diameter of basalt fibers used in the production of rovings varies from 3 to 23 μm. The number of rovings ranges from 150 to 9600 (tex). Untwisted rovings can be directly used in some composite material forming methods, such as winding and pultrusion processes, because of their uniform tension, they can also be woven into untwisted rovings and fabrics. In some applications, untwisted rovings are further Chopped.

An important use of basalt fiber roving is to weave plaid or unidirectional roving fabrics of various thicknesses, which are mostly used in the hand lay-up FRP forming process.

Requirements for roving for strength
  • Good wear resistance;
  • Good banding;
  • Twistless roving for weaving needs to be forced to dry before weaving;
  • The untwisted roving has uniform tension, and the drape should meet certain standards;
  • The untwisted roving has good disintegration property;
  • The roving has good penetration.

Basalt fiber gingham

Basalt fiber gingham is a roving plain weave fabric, which is an important base material for hand lay-up FRP. The strength of the gingham fabric is mainly in the warp and weft directions of the fabric. For occasions requiring high warp or weft strength, it can also be woven into twill roving and unidirectional roving under special circumstances. Twistless rovings are arranged in many directions and can be cut into narrow strips and ribbons.

Quality requirements

The fabric is uniform, the edge of the cloth is straight, the cloth surface is flat and mat-like, and there is no stain, fluff, creases, wrinkles, etc.;
Warp and weft density, area weight, fabric width, and roll length all meet the standards;
It is wound on a firm paper core, and the winding is neat;
Rapid and good resin permeability;
The dry and wet mechanical strength of the laminate made of the fabric shall meet the requirements.

Basalt fiber non-woven fabric felt

  • Chopped strand mat
  • Continuous strand mat
  • Surface felt
  • Needle felt
  • Stitched felt

Basalt fiber fine gauze

Basalt fiber fine gauze refers to various fabrics woven with basalt fiber yarns less than 150TEX. Mainly used in the production of various electrical insulating laminates, printed circuit boards, various vehicle bodies, storage tanks, boats, molds, etc. The properties of fabrics are determined by fiber properties, weft and warp density, yarn structure, and texture. The warp and weft density is determined by the yarn structure and texture. The warp and weft density plus the yarn structure determines the physical properties of the fabric, such as weight, thickness, and breaking strength. There are five basic weaves: plain, twill, satin, rib, and mat. Basalt fiber webbing is divided into selvage (smooth) and non-woven (fluid), the main weaving method is plain weave. It is used to manufacture electrical equipment parts with high strength and good dielectric properties.

Basalt fiber unidirectional fabric

Unidirectional fabrics are characterized by high strength in the direction of warp 0 degrees or weft 90 degrees. The warp unidirectional fabric is a four-warp broken satin or long-axis satin fabric woven by thick warp yarns and fine weft yarns.

Basalt fiber three-dimensional fabric

Compared with the flat fabric, the three-dimensional fabric has developed from one-dimensional two-dimensional to three-dimensional, so that the composite material with this reinforcement has good integrity and profiling, and greatly improves the interlaminar shear of the composite material. Shear strength and damage tolerance. It is developed for the special needs of aerospace, aviation, weapons, ships, and other departments, and its application has been extended to automobiles, sports equipment, medical equipment, and other departments. There are five main categories: woven three-dimensional fabrics, knitted three-dimensional fabrics, orthogonal and non-orthogonal non-woven three-dimensional fabrics, three-dimensional woven fabrics, and other forms of three-dimensional fabrics. The shapes of three-dimensional fabrics include blocks, columns, tubular, hollow truncated cones, and variable thickness profiled sections.

Basalt fiber shaped fabric

The shape of the special-shaped fabric is very similar to the shape of the product to be reinforced, and it must be woven on a special loom. Symmetrically shaped special-shaped fabrics include: round covers, cones, caps, dumbbell-shaped fabrics, etc., and can also be made into asymmetric shapes such as boxes and hulls.

Basalt Fiber Slotted Fabric

The groove core fabric is a fabric composed of two layers of parallel fabrics connected by longitudinal vertical bars, and its cross-sectional shape can be triangular or rectangular.

Basalt fiber stitched fabric

Stitched fabric, also known as knitted felt or woven felt, is not only different from ordinary fabrics but also different from felts in the usual sense. The most typical stitched fabric is a layer of warp yarns and a layer of weft yarns overlapped, and the warp yarns and weft yarns are woven together to form a fabric by stitching.

  • Stitched fabrics can increase the ultimate tensile strength, delamination strength under tension, and flexural strength of FRP laminates;
  • Reduce the weight of FRP products;
  • The smooth surface makes the surface of FRP products smooth;
  • Simplify hand lay-up operations and improve labor productivity. This reinforcing material can replace continuous strand mats in pultrusion FRP and RTM, and can also replace roving in centrifugal FRP tube production.

Combined basalt fiber fabric reinforcement

That is to say, the composite cloth reinforcement materials that combine chopped strand mats, continuous strand mats, roving fabrics, rovings, etc. in a certain order, generally include the following:

  • Chopped strand mat + roving fabric
  • Chopped strand mat + untwisted roving + chopped strand mat
  • Chopped strand mat + continuous strand mat + chopped strand mat
  • Chopped original ratio felt + random roving
  • Chopped strand mat or cloth + unidirectional fiber
  • Chopped strand + surface felt
  • Basalt cloth + unidirectional roving or thin rod + basalt cloth