Press felts

Endless and seamed constructions matched to the press position for sheet support, water handling and runnability.

Image from company product materials; the supplied construction follows the confirmed design.

PRESS SECTION

Construction: Laminated, multilayer and seamed constructions, with base fabric, batt and finishing specified for each position.
Applications: Packaging, board, tissue, graphical, pulp and specialty-paper applications, subject to a press-position review.
Design focus: Compaction resistance, elastic recovery, dimensional stability, cross-direction moisture and sheet quality.
Design inputs: Grade, basis weight, furnish, speed, press layout, nip load, dimensions, vacuum and showers.

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PRODUCT SPECIFICATIONS

Construction and reference specifications

The following information comes from the company manuals and brochure. Product-family ranges support selection discussions. Construction, test conditions and supply requirements follow the agreed technical specification.

Press felt product-family reference ranges

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Application	Felt basis weight g/m²	Caliper mm	Air permeability cfm	Machine speed m/min	Sheet basis weight g/m²
Packaging paper	1400–2200	3.5–4.2	50–90	700–1400	50–450
Board paper	1000–1900	2.4–4.5	70–120	300–1200	300–1500
Printing & writing paper	1000–1900	2.4–4.5	40–70	500–1200	40–120
Tissue paper	1000–1300	2.1–2.5	18–30	300–2200	11–30
Pulp / suitable specialty grades	1800–2800	4.8–5.7	100–200	80–300	300–1350
Seamed felts	1400–2700	3.5–5.7	20–180	200–1400	14–135

Permeability retains the source unit, cfm. Common test pressure, area and method are not stated and must be agreed before comparison or acceptance. Speed and sheet-weight figures describe application ranges, not guaranteed performance at every position.

Source: company brochure, PDF pp.26–31 (printed pp.25–30); product manual, PDF pp.5–8. Tissue felt ranges also appear in the tissue-felt presentation, slide 8.

MACHINE CONFIGURATIONS

Match the fabric to the machine position

Packaging-paper press felt runReview suction, blind-drilled-roll or shoe-press positions as applicable.

Board-machine layoutBoard felts are reviewed for suitable Ultra-Former and multi-vat machine positions.

Printing and writing paper press runSpecify the felt for the pick-up position, nip arrangement and sheet-surface requirements.

Tissue-machine illustrationReview Crescent and BF configurations, specifying forming and pressing separately.

Pulp-machine press felt runReview twin-nip, pick-up and applicable ENP/LNP positions.

Illustrations are extracted from the supplied company manual and brochure. They show typical machine positions or felt runs, rather than the actual configuration of every machine.

SEAMED PRESS FELTS

Seamed constructions for the position

Single- and double-seam felts are reviewed against installation access, pintle configuration, batt coverage and sheet-quality requirements.

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CONSTRUCTION & FUNCTION

A construction that works together

Sheet-side batt

Support the sheet uniformly, with fibers and surface selected for sheet requirements.

Intermediate batt

Integrate the base and batt while balancing water transfer and pore structure.

Base fabric

Provide mechanical support, dimensional stability and drainage channels.

Machine-side batt

Protect the base and work with roll surfaces and felt conditioning.

Schematic only. Actual layers, materials and construction follow the agreed specification.

Start with your next machine position

Share the grade, operating conditions and current performance for an informed selection.

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