Product overviewThe Crest WSL is a high-precision industrial slitter rewinder and optional inline laminator engineered for tension-sensitive conversion of flexible films, specialty foams and laminates. It integrates pneumatic circular slitting, loop-controlled centre winding and an inline lamination station (optional) to enable single-pass and dual-pass workflows while preventing material deformation, telescoping and adhesive bleeding.
Key capabilitiesThe machine supports pneumatic circular knives for ultra-clean edges; a highly responsive loop-controlled centre winding system for deformation-free winding; an integrated Corona surface activation unit to improve adhesive anchoring; precise nip roll and height adjustments; and a dual-roller lamination nip to eliminate micro-air inclusions in composite laminates.
Main features- Pneumatic circular knives for accurate, burr-free slitting with rapid, operator-friendly knife changeovers
- Loop-controlled centre winding delivering stable tension across full roll diameter
- Optional inline lamination unit enabling combined lamination, slitting and rewinding workflows
- Integrated Corona treatment unit for surface activation prior to lamination (used in Pass 1)
- Dual-roller nip system to ensure bubble-free lamination and homogeneous roll quality
- Flexible shaft handling with fast interchangeable setups for 3" and 6" cores
- Heavy-duty platform designed for high-volume production and jumbo master rolls
Applications & benefits- Deformation-free master roll converting for compressible and high-tack adhesive laminates
- Accurate and clean edge quality for industrial converters needing ultra-clean slitting
- Efficient dual-pass lamination and converting workflows on a single platform (foam activation + adhesive coating, followed by backing application and final slitting)
- Maximized yield and minimized scrap through precise web control and pneumatic slitting
Suitable materials- Technical foam laminates (e.g., ProBAK®, Softprint®, Cushion-Mount™)
- Flexographic backing & compressible foams
- Polyester (PET) & PVC plastic backing films
- High-tack self-adhesive laminates
- Protective films & release liners
Operational notes (process flow)- PASS 1: Foam Activation & Adhesive Coating — Corona treatment activates foam surface, then high-tack adhesive is laminated under precise nip pressure.
- PASS 2: Plastic Backing Application — The adhesive-laminated foam from Pass 1 is rewound into the line; plastic backing is applied (Corona off) and the laminate is slit to customer widths.
Frequently asked product details- Slitting method: pneumatic circular knives (crush-cut) driven by controlled air pressure for burr-free edges and minimal adhesive bleeding.
- Dual capability: single-pass lamination & slitting for standard jobs; optimized dual-pass workflow for complex flexo backing production.
- Customization: adjustable working widths (up to 1650 mm and beyond), advanced edge guiding, modular loop-controlled tension and quick-change chucks.
- Warranty: 5-year warranty when a service agreement is in place.
Caractéristiques / spécifications techniques- Model name: WSL
- Machine type: Slitter rewinder with optional inline laminator
- Slitting: Pneumatic circular knives (crush-cut)
- Tension control: Loop-controlled centre winding (closed-loop)
- Corona treatment: Inline surface activation unit (optional, used in Pass 1)
- Lamination nip: Dual-roller nip system for bubble-free lamination
- Working width: Adjustable, up to 1650 mm and beyond (modular)
- Max roll diameter: Up to ø1200 mm (jumbo master rolls)
- Max roll weight: Up to 500 kg via centre winding
- Core handling: Quick-change chucks for 3" and 6" cores
- Primary target materials: Specialty foam laminates, PET/PVC backing films, high-tack adhesive laminates, protective films
- Designed for: Single-pass and dual-pass lamination workflows, high-volume converting, heavy-duty industrial uptime