OverviewThe Crest WSL is the high-precision slitter rewinder & laminator engineered for tension-sensitive conversion of flexible films, foils and specialty foams. It integrates pneumatic circular slitting, loop-controlled center winding and an optional inline lamination station to perform slitting, rewinding and lamination in one pass while preventing material deformation and telescoping.
Key capabilities- Closed-loop, loop-controlled tension management for deformation-free winding
- Pneumatic circular knives for accurate, burr-free slitting and fast knife changeover
- Optional inline Corona surface activation for improved adhesive anchoring
- Integrated dual-roller nip system for bubble-free lamination and micro-air inclusion elimination
- Heavy-duty center-wind platform handling jumbo master rolls
Applications- Slitting and laminating specialty foams without structural deformation or cell collapse
- High-precision slitting for industrial converters demanding clean edges without adhesive bleeding or fraying
- Single-pass and dual-pass lamination workflows for flexographic backing and multi-layer products
- High-volume operations seeking maximum yield and minimized scrap
Process flow (example)PASS 1: Foam activation & adhesive coatingThe specialty foam is unwound and passed through the Corona Treatment Unit to increase surface energy. A high-tack adhesive is laminated under precise nip pressure to guarantee strong bonding.
PASS 2: Plastic backing application & final slittingThe laminated adhesive foam roll is fed back into the line. The backing film is laminated onto the adhesive side (Corona off) and pneumatic circular knives slit the laminate to exact customer widths.
Best suited for- Converters of technical foam laminates (e.g., ProBAK®, Softprint®, Cushion-Mount™)
- Processes requiring precise web alignment, with or without overlap
- Single-pass and multi-pass lamination using dual-roller sets to avoid air inclusion
- Heavy-duty conversion of jumbo rolls up to ø1200 mm and 500 kg via center winding
- Fast, interchangeable shaft setups for 3-inch and 6-inch cores
Performance benefits- Maximized yield and minimized scrap through pneumatic knives and responsive loop tension
- Zero-defect composite quality from stable center winding and dual-roller lamination
- Industrial uptime with operator-friendly knife positioning and rapid access changeovers
Frequently asked points- Machine type: industrial slitter rewinder and laminator combining pneumatic slitting, tension-controlled center winding and optional inline lamination
- Materials: technical foam laminates, PET/PVC backing films, high-tack adhesive laminates, protective films and release liners
- Customization: modular options including adjustable working widths, quick-change chucks, advanced edge-guiding and tailored tension control
- Warranty note: 5-year warranty applies when a service agreement is in place
Caractéristiques / spécifications techniques- Model name: WSL
- Brand: Crest
- Pneumatic circular knives (crush-cut) for burr-free edges
- Loop-controlled closed-loop tension center winding
- Optional inline Corona surface activation unit
- Dual-roller nip lamination system for bubble-free bonding
- Adjustable nip roll and height settings
- Adjustable working widths up to 1650 mm and beyond (modular)
- Jumbo roll capacity: up to ø1200 mm diameter and up to 500 kg weight
- Core compatibility: fast changeovers for 3-inch and 6-inch cores
- Designed for single-pass and dual-pass lamination workflows
- Modular customization available to match upstream/downstream equipment
- 5-year warranty when a service agreement is maintained