Suction Couch Roll

Paper Machine Couch Roll

Engineered to maximize web dryness and guarantee flawless, stress-free sheet transfer at the forming section discharge, our High-Efficiency Suction Couch Roll is the definitive dewatering standard for high-speed paper, tissue, and paperboard machines. Positioned at the critical wire-to-press section convergence, this roller combines an ultra-precise, CNC-drilled heavy-duty stainless steel shell with an internal multi-zone adjustable vacuum box.

Key Features

• High-Strength Corrosion-Resistant Shell Metallurgy: Centrifugally cast or roll-formed using premium stainless steel alloys (SS304L, SS316L, or Duplex 2205/2507), providing extreme resistance to white-water corrosion, chemical additives, and cyclical fatigue stress.

• Precision Computerized Hole-Drilling Topologies: Multi-axis CNC drilled hole patterns with deburred micro-countersunk edges minimize vacuum turbulence, prevent shadow marking, and optimize water airflow dynamics.

• Multi-Chamber Internal Vacuum Box System: Equipped with single or dual vacuum chambers fitted with pneumatic loading tubes, durable graphite/composite sealing strips, and internal lubrication showers for minimal friction and long service life.

• Flexible Edge & Deckle Adjustment: Integrated remote-controlled or manual deckle adjustment mechanisms allow operators to match the effective vacuum width instantly to changing paper web widths, preventing edge leakage.

Applications & Industry Scenarios

Suction Couch Roll is fully compatible with global high-speed paper machinery and rebuild projects (such as Valmet, Voith, Andritz, Allimand, and Krafft), specifically engineered for:

• High-Speed Containerboard & Packaging Paper Lines: Processing testliner, kraftliner, and fluting medium at speeds exceeding 1000m/min.

• Fine Paper & Printing Grade Machines: Delivering shadow-free, mark-free sheet transfer for A4 copy paper, coated woodfree, and specialty grades.

• Tissue & Toweling Paper Machines: Ensuring gentle, high-efficiency web pickup and boundary dewatering for low-basis-weight tissue webs.

• Heavy Board & Pulp Dewatering Machines: Providing heavy-duty vacuum suction for thick multi-ply paperboard and pulp sheet forming sections.