Polyester filter belt is a kind of conveyor belt made of polyester fiber with excellent strength and abrasion resistance performance. It is widely used in papermaking, mineral processing, flour, sewage treatment, sugar making, pharmaceuticals, ceramics, food, printing, and coal washing industries.
Polyester filter belt adopts the structural form of braided or woven combination (interwoven polyester fibers through hot press combination technology), which makes the mesh belt have good stability and carrying capacity. It features high strength, small deformation, excellent corrosion resistance and abrasion resistance performance, easy installation and use, no interface marks, and a long service life.
The commonly used types are polyester forming fabrics, polyester dryer fabrics, polyester spiral dryer fabrics, spiral press filter fabrics, polyester anti-static fabrics, vacuum filter belts, and sludge dehydration fabrics.
Endless seam (ring belt)
Single warp-ring seam
Pairs warp-ring seam
Plug-in spiral ring seam
Stainless steel clip seam
Wrap-ring seam
Polyester forming fabrics are commonly used for dewatering in the paper machine-forming sector of the paper industry and are usually composed of warp and weft threads. The warp thread refers to the longitudinal braid, and the weft thread refers to the transverse braid. The warp thread in the paper machine withstands greater tension and also withstands continuous bending and correction effects, so the requirements of the warp thread are very strict, and the diameter of the weft thread is usually about 10% larger than the diameter of the warp thread.
According to the weaving type, polyester forming fabrics can be divided into 4-shed single layer fabric, 5-shed single layer fabric, 8-shed single layer fabric, 8-shed double layer fabric, 16-shed double and a half layer fabric, 24-shed three-layer fabric, etc.
4-shed polyester forming fabric
5-shed polyester forming fabric
| Weaving Series & Types | Model of Fabrics | Wire Diameter (mm) |
Density (wire/cm) |
Strength (N/m) |
Air Permeability (m3/m2/h) |
||
|---|---|---|---|---|---|---|---|
| Warp | Weft | Warp | Weft | Surface Area | |||
| 4-Shed Single Layer Fabric | 27254 | 0.20 | 0.25 | 29.0 | 22.0 | ≥ 600 | 7,500 ± 500 |
| 27274 | 0.20 | 0.27 | 30.0 | 22.5 | ≥ 600 | 7600 ± 500 | |
| 31204 | 0.20 | 0.22 | 35.0 | 28.0 | ≥ 600 | 6,500 ± 500 | |
| 5-Shed Single Layer Fabric | 27255 | 0.20 | 0.25 | 30.0 | 23.0 | ≥ 600 | 7,600 ± 500 |
| 27285 | 0.22 | 0.28 | 30.0 | 23.0 | ≥ 500 | 7,800 ± 500 | |
| 31205 | 0.20 | 0.21 | 35.0 | 32.0 | ≥ 600 | 6,700 ± 500 | |
| 8-Shed Single Layer Fabric | 25358 | 0.22 | 0.35 | 28.0 | 19.5 | ≥ 700 | 9,000 ± 500 |
| 25408 | 0.22 | 0.40 | 29.5 | 19.0 | ≥ 700 | 8,500 ± 500 | |
| 27358 | 0.22 | 0.35 | 29.0 | 20.0 | ≥ 700 | 8,500 ± 500 | |
| 27408 | 0.22 | 0.40 | 31.5 | 19.0 | ≥ 700 | 8,000 ± 500 | |
| 8-Shed Double Layer Fabric | 56188 | 0.17 | 0.19/0.22 | 61.3 | 51.2 | ≥ 850 | 6,800 ± 500 |
| 60188 | 0.18 | 0.18/0.20 | 66.0 | 49.0 | ≥ 900 | 6,000 ± 500 | |
| 62188 | 0.15 | 0.16/0.17 | 70.5 | 50.5 | ≥ 900 | 5,700 ± 500 | |
| 16-Shed Two and a Half Layer Fabric | 365016 | 0.28 | 0.20, 0.27/0.50, 0.50 | 37–38 | 31–32 | ≥ 1,200 | 8,500 ± 500 |
| 424516 | 0.25 | 0.20, 0.25/0.45, 0.45 | 48–49 | 42–43 | ≥ 1,250 | 8,000 ± 500 | |
| 562516 | 0.18 | 0.13, 0.18/0.25, 0.25 | 57–58 | 46–47 | ≥ 1,500 | 6,500 ± 500 | |
| 563516 | 0.20 | 0.13, 0.25/0.35, 0.35 | 56–57 | 61–62 | ≥ 1,500 | 7,000 ± 500 | |
| 602516 | 0.18 | 0.13, 0.20/0.25, 0.25 | 62–63 | 55–56 | ≥ 1,500 | 6,200 ± 500 | |
| 603516 | 0.20 | 0.13, 0.25/0.35, 0.35 | 61–62 | 52–53 | ≥ 1,500 | 6,300 ± 500 | |
| 20-Shed Triple Layer Fabric | 563520 | 0.15, 0.20 | 0.15, 0.15/0.35, 0.35 | 70 | 55 | ≥ 1,600 | 5,000 ± 500 |
| 24-Shed Triple Layer Fabric | 364024 | 0.20/0.20 | 0.20, 0.17/0.40, 0.40 | 42 | 52 | ≥ 1,600 | 6,500 ± 500 |
Polyester dryer fabric is a polyester fabric made of polyester fabrics woven in spiral and heddle inserting methods, often used in the paper industry to separate solids or liquids. Normally, it carries the paper sheet to travel around a large diameter heated cylinder for appropriate water evaporation.
Round dryer fabric
Flat dryer fabric
| Weaving Series & Types | Model of Fabrics | Wire Diameter (mm) |
Density (wire/cm) |
Strength (N/cm) |
Air Permeability (m3/m2/h) |
||
|---|---|---|---|---|---|---|---|
| Warp | Weft | Warp | Weft | Surface Area | |||
| 3-Shed Series | 22503 | 0.50 | 0.50 | 24.00 | 12.00 | ≥ 2,000 | 8,000 ± 500 |
| 4-Shed Series | 20504 | 0.50 | 0.50 | 22.00 | 12.00 | ≥ 1,900 | 13,000 ± 500 |
| 22504 | 0.50 | 0.50 | 24.00 | 12.00 | ≥ 2,000 | 12,000 ± 500 | |
| 24504 | 0.50 | 0.50 | 26.00 | 12.00 | ≥ 2,100 | 11,000 ± 500 | |
| Round Wire Fabric | 4106 | 0.50 | 0.50 | 22.00 | 12.40 | ≥ 2,000 | 6,800 ± 500 |
| Flat Wire Fabric | 4106-1 | 0.38 × 0.58 | 0.50 | 16.66 | 15.00 | ≥ 2,000 | 5,954 ± 500 |
| 4106-2 | 0.38 × 0.58 | 0.40/0.60 | 18.00 | 14.66 | ≥ 2,000 | 4,800 ± 500 | |
| SL4106 | 0.50 × 0.75 | 0.60/0.40 | 14.66 | 12.66 | ≥ 2,100 | 6,000 ± 500 | |
| SJ1860 | 0.25 × 1.05 | 0.60/0.90 | 9.00 | 7.00 | ≥ 2,200 | 2,100 ± 500 | |
Polyester spiral dryer fabric is suitable for drying large quantities of packaging paper, cultural paper, board, and pulp board. Widely used in papermaking, coal mining, food, medicine, printing and dyeing, and rubber products industry, can also be used as a conveyor belt and composite machine supporting mesh belt. It has the advantages of large air permeability, flat mesh surface, arbitrary splitting, good strength, and long service life. Special material dryer fabric also features high temperature, high abrasion, and aging resistance performance.
| Types | Model of Fabrics | Wire Diameter (mm) |
Strength (N/cm) |
Air Permeability (m3/m2/h) |
|
|---|---|---|---|---|---|
| Warp | Weft | Surface Area | |||
| Coarse Loop | LW90110 | 0.9 | 1.1 | ≥ 2,300 | 21,000 ± 500 |
| Large Loop | LW4080 | 0.9 | 1.1 | ≥ 2,000 | 18,000 ± 500 |
| Medium Loop | LW3868 | 0.7 | 0.9 | ≥ 2,000 | 16,000 ± 500 |
| Fine Loop | LW3560 | 0.6 | 0.8 | ≥ 2,000 | 15,000 ± 500 |
| Micro Loop | LW3252 | 0.5 | 0.7 | ≥ 1,800 | 15,000 ± 500 |
| Medium Loop (Flat Wire) | JLW3868 | 0.48 × 0.82 | 0.8 | ≥ 2,000 | 10,000 ± 500 |
Polyester spiral press-filter fabric is a filler wire added to the spiral ring, so the air permeability is reduced, and less material loss on the surface of the fabric. Mainly used in paper making, printing and dyeing, food, pharmaceuticals, ceramics, and solid-liquid separation industries like sludge dehydration.
| Types | Model | Wire Diameter (mm) |
Strength (N/cm) |
Air Permeability (m3/m2/h) |
||
|---|---|---|---|---|---|---|
| Warp | Weft | Filler | Surface Area | |||
| Large Loop | LW4080IV | 0.9 | 1.1 | 0.90 × 4 | ≥ 2,300 | 10,231 ± 500 |
| LW4080V | 0.9 | 1.1 | 0.90 × 5 | ≥ 2,300 | 6,317 ± 500 | |
| Medium Loop | LW3868III | 0.7 | 0.9 | 0.80 × 3 | ≥ 2,000 | 10,320 ± 500 |
| LW3868IV | 0.7 | 0.9 | 0.80 × 4 | ≥ 2,000 | 8,500 ± 500 | |
| Micro Loop | LW3252III | 0.52 | 0.7 | 0.68 × 3 | ≥ 1,800 | 2,850 ± 500 |
| Medium Loop (Flat Wire) | LW3868J | 0.7 | 0.7 | (J)0.24 × 0.85 | ≥ 2,000 | 10,100 ± 500 |
Polyester anti-static filter fabric is mainly used for chemical fiber, dry papermaking, fiberboard continuous press mesh belt, continuous pre-press mesh belt, and materials needed for conductive, anti-static industry. The use of polyester mesh equipment in high-speed operation can produce static electricity. When the conductive fabrics are through polyester mesh, they can release static electricity, so as to have an anti-static effect.
| Model | Wire Diameter (mm) |
Density (wire/cm) |
Strength (N/cm) |
Air Permeability (m3/m2/h) |
||
|---|---|---|---|---|---|---|
| Warp | Weft | Warp | Weft | Area of the surface | ||
| 4106 | 0.5 | 0.5 | 23.00 | 12.00 | ≥ 2,000 | 6,800 ± 500 |
| 4080 | 0.9 | 1.1 | - | - | ≥ 2,000 | 20,000 ± 500 |
Vacuum filter belts are mainly used for FGD in power plants, mine tailings disposal, metallurgical, chemical, coal chemical, food, pharmaceutical, environmental protection, and other solid-liquid separation industries. The belt features stable running, is not easy to wrinkle, has a high filtration rate, and can easily peel off the filter cake. Mainly matched with vacuum rubber belt filter, horizontal vacuum belt filter, vacuum drum filter, and vertical filter press.
| Model | Wire Diameter (mm) |
Density (wire/cm) |
Strength (N/cm) |
Air Permeability (m3/m2/h) |
||
|---|---|---|---|---|---|---|
| Warp | Weft | Warp | Weft | Surface Area | ||
| C28508F | 0.5 | 0.5 | 30 | 20 | ≥ 1,450 | 2,158 ± 500 |
| C28508M | 0.5 | 0.5 | 28 | 21 | ≥ 1,390 | 710 ± 500 |
Sludge dehydration fabric's mesh belt adopts a herringbone design, the sludge is quickly peeled off from the mesh belt, it is not easy to stick to the sludge, a large amount of sludge is discharged, it is easy to clean, and it is fast and convenient to connect. Mainly used in belt filter press, rubber belt vacuum filter, and horizontal vacuum belt filter. It is suitable for municipal sludge, various industries and enterprises sludge filter press, paper mill pulp press, concentrated fruit juice press, and other special industry uses.
| Model | Wire Diameter (mm) |
Density (wire/cm) |
Strength (N/cm) |
Air Permeability (m3/m2/h) |
||
|---|---|---|---|---|---|---|
| Warp | Weft | Warp | Weft | Surface Area | ||
| 16903 | 0.7 | 0.9 | 16 | 5.33 | ≥ 2,200 | 7,894 ± 500 |
| 22903 | 0.5 | 0.9 | 22 | 5.33 | ≥ 2,000 | 6,800 ± 500 |
| 26808 | 0.5 | 0.8 | 27 | 8.5 | ≥ 2,100 | 5,120 ± 500 |
| 15905 | 0.9 | 0.9 | 17 | 4.8 | ≥ 4,500 | 6,741 ± 500 |
| 151105 | 0.9 | 1.1 | 16 | 4.8 | ≥ 5,000 | 6,749 ± 500 |
| 121104 | 0.9 | 1.1 | 12 | 3.8 | ≥ 3,600 | 8,610 ± 500 |
