Dryer Fabrics| PFM SCREEN

Dryer Fabrics

PAPER MACHINE CLOTHING · DRYER SECTION

Spiral and Woven Dryer Fabrics —
PET, Hydrolysis-Resistant PET, and PPS (250°C)

PFM SCREEN's dryer fabrics cover the full dryer section from light-grade tissue positions (high-CFM spiral) to heavy-board positions (dense woven flat-yarn) — in standard PET and chemical-resistant PPS grades for hydrolysis-prone high-steam-pressure positions. Serving paper mills and other industries in 50+ countries.

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Fabric Series (Spiral + Woven)

250°C

PPS Grade Max Temp

150-900

CFM Air Permeability Range

30+

Years Manufacturing

Dryer Fabrics — Function, Construction, and Material Selection

Dryer fabric selection determines drying rate, steam consumption, paper surface quality, and fabric running life across 40-70 dryer cylinders per machine

In the dryer section of the paper machine, the paper web passes around a series of 40-70 steam-heated drying cylinders at temperatures of 80-140°C, held in contact with each cylinder by the dryer fabric. The dryer fabric serves two functions: removing remaining moisture (that cannot be removed by pressing) through evaporation by maximizing contact area and heat transfer, and mechanically transporting the web through the dryer section at full machine speed without sheet breaks or surface damage.

PFM SCREEN manufactures two dryer fabric series: Spiral Dryer Fabrics (an endless construction of interlinked monofilament spiral loops — no conventional seam required) and Woven Dryer Fabrics (conventional woven construction in 3-shed, 4-shed, and 8-shed patterns). Both are available in round-yarn and flat-yarn variants, and in standard PET, hydrolysis-resistant PET, or PPS (polyphenylene sulfide, rated to 250°C) for high-steam-pressure positions.

Beyond papermaking, PFM SCREEN dryer fabrics are also used in food drying, non-woven fabric conveying, printed textile drying, rotary screen printing, coal washing, and oven conveying — wherever high-temperature, dimensionally stable, easy-to-clean endless belt performance is required.

Key Specifications

Air Permeability 150-900 CFM

Standard Material 100% PET monofilament

High-Temp Grade PPS — up to 250°C

Yarn Type Round or Flat monofilament

Tensile Strength 2000-2600 N/cm

Construction Spiral (endless) or Woven

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Two Dryer Fabric Series — Spiral and Woven

Both series cover normal PET and high-temperature PPS grades; both available in round and flat yarn. Choose based on position requirements, paper grade, and machine speed.

Spiral dryer fabric polyester monofilament paper machine clothing

Spiral Dryer Fabrics

Endless · Round or Flat Yarn · PET / PPS

Endless Construction · No Conventional Seam · Air Perm: 150-900 CFM

Spiral Dryer Fabrics

An endless dryer fabric constructed from interlocking spiral loops of monofilament yarn, linked by a pin yarn inserted through the adjacent loop openings. The spiral loop design completely eliminates the need for conventional seams — avoiding seam-related paper marking, tension variation, and premature wear. Available in round-yarn (standard) and flat-yarn (for high-speed machines — smoother surface, better wear resistance, larger contact area, improved drying efficiency) configurations.

Available in small-loop (5.2 mm), medium-loop (7-8 mm), and large-loop (8-12 mm) structures to match required air permeability (9375-13750 CFM at 127 Pa). PPS grade versions rated to 250°C are available for hydrolysis-prone positions where high steam pressures are used. Suitable for multi-cylinder Fourdrinier and cylinder paper machines, vacuum washers, and a wide range of non-paper drying applications.

Loop sizes: small/medium/large · Air Perm: 9375-13750 CFM (127Pa) · Materials: PET / Hydrolysis-resistant PET / PPS (250°C)

Round Yarn Spiral

Standard option. Circular cross-section monofilament. Good air permeability and drainage. Suitable for general paper drying positions and normal machine speeds.

Flat Yarn Spiral — Recommended for High-Speed

Rectangular cross-section monofilament. Smoother running surface, greater contact area, superior wear resistance, and improved drying performance. Preferred for high-speed paper machines.

Woven dryer fabric polyester papermaking dryer section

Woven Dryer Fabrics

3-shed / 4-shed / 8-shed · Round or Flat Yarn · PET / PPS

Conventional Woven · Multiple Shed Options · Paper Grade Selection

Woven Dryer Fabrics (3-shed / 4-shed / 8-shed)

Woven in single, double, or 2.5-layer configurations using round or flat monofilament yarns. The weaving shed determines the weave density and air permeability: 3-shed fabrics are optimal for lightweight papers under 70 g/m2 (good open structure, high drainage rate); 4-shed fabrics are ideal for papers heavier than 70 g/m2 (denser weave, better contact); 8-shed variants offer controlled permeability for specific positions. Flat yarn woven dryer fabrics are particularly suited to the fore heating box in the drying zone and for all quality paper grades.

Different yarn structures and shapes control air permeability (CFM) and directly influence contact area, wear resistance, dimensional stability, and cleanliness. PPS (polyphenylene sulfide) edge reinforcement is available for operation in severe conditions. Warp loop seam construction ensures secure, flat, and durable joining. Suitable for packing paper, cultural paper, board paper, and pulp board in large quantities.

Shed options: 3-shed (<70g/m2) · 4-shed (>70g/m2) · 8-shed · Permeability: 1600-12000 m3/m2h · Materials: PET / PPS edge reinforcement

3-Shed Woven

Open weave structure. Best for lightweight paper (<70 g/m2). High air permeability, good drainage rate, easy to clean.

4-Shed Woven

Denser weave. Ideal for heavier paper (>70 g/m2). Better contact area and support. Standard choice for board and packing paper machines.

Flat Yarn Woven

Rectangular monofilament. Fore heating box and all quality paper grades. Improved runnability and wear on high-speed machines.

Not sure whether spiral or woven is right for your dryer position? Send us your dryer section specifications — position, steam pressure, paper grade, machine speed — and our engineers will recommend the optimal fabric and grade within 24 hours.

Dryer Fabric Selection by Position and Application

Match fabric type, yarn, and material grade to your dryer section position and operating conditions

Application / Position	Fabric Type	Yarn	Material Grade	Key Benefit
Standard paper drying	Spiral or Woven 4-shed	Round	100% PET	Good drainage + heat transfer
High-speed machines	Spiral or Woven (any shed)	Flat	PET or PPS	Better runnability + wear resistance
Lightweight paper (<70 g/m2)	Woven 3-shed or Spiral	Round or Flat	PET	High air permeability + fast drying
Heavy paper / board (>70 g/m2)	Woven 4-shed / 8-shed	Flat	PET	Good contact area + dimensional stability
Hydrolysis-prone positions	Spiral or Woven	Round or Flat	Hydrolysis-resistant PET	Extended life in wet + high-temp conditions
High steam pressure (250°C)	Spiral or Woven (PPS grade)	Round or Flat	PPS (polyphenylene sulfide)	Heat resistance to 250°C + hydrolysis resistance
Fore heating box	Woven flat-yarn	Flat	PET or PPS	Optimal initial heat transfer + paper smoothness
Food / Non-woven / Textile drying	Spiral Dryer Fabrics	Round or Flat	PET	No seam marks + easy cleaning + long life

PPS fabrics are for hydrolysis-prone positions where high steam pressures are used. PET dryer fabrics are for normal operating conditions. Contact PFM SCREEN engineers with your specific dryer position and operating conditions for a tailored grade recommendation.

Paper Grades, Machine Types & Industry Applications

Multi-Cylinder Fourdrinier Cylinder Paper Machine Board Paper Corrugated Paper Kraft Paper Bag Paper Cultural / Printing Paper Pulp Board Tissue Paper Food Drying Non-woven Conveying Printed Textile Drying Rotary Screen Printing Vacuum Washer Oven Conveyor Belt

Why Source Dryer Fabrics from PFM SCREEN?

30+ years manufacturing paper machine clothing, direct factory supply, full coverage from standard PET to PPS high-temperature grades

PET to PPS Full Grade Range

Standard PET for normal positions, hydrolysis-resistant PET for wet-heat environments, and PPS (250°C rated) for high-steam-pressure positions — one manufacturer for every dryer section condition.

Both Spiral and Woven Series

Spiral endless construction (no seam marks) and conventional woven construction (3/4/8-shed) — both with round and flat yarn options, ensuring the right product for every dryer position on your machine.

High Contact Area + Heat Transfer

Fabrics are engineered for maximum contact surface area and efficient heat transfer to the paper web — accelerating drying rate, reducing steam pressure requirements, and lowering energy consumption per tonne of paper produced.

Dimensional Stability + Long Life

Excellent wear and jam resistance, strong warp loop seam (woven series), flexible edge reinforcement, and easy-to-clean structure ensure stable running performance from commissioning to end-of-life — minimizing changeovers and maintenance downtime.

GET STARTED TODAY

Ready to Order Your Dryer Fabrics?

Share your dryer section details: spiral or woven preference, dryer position, paper grade, machine width and perimeter, machine speed, steam pressure, and any known issues with current fabrics (seam wear, marking, hydrolysis). PFM SCREEN engineers will recommend the optimal fabric type, yarn, and material grade, and provide a competitive quotation within 24 hours.

Request a Custom Quote WhatsApp Inquiry

Tel: +86 316 218 8808 · WhatsApp: +86 153 6967 9157 · polyestermesh@pfmscreen.com