Slitting, rewinding, and conversion: We engineer the formats, tolerances, and controls that keep your production moving efficiently.
Precision Slitting
We convert wide-format and master rolls into exact-width reels for downstream production. Each pass is controlled to maintain edge quality, tension stability, and consistent dimensional accuracy across the full production run.
Capabilities: Shear-knife and razor-blade slitting, delivering tight width tolerances and reliable multi-material handling.
Rewinding & Trimming
Consistent roll geometry. Controlled rewind tension and precision edge trimming deliver production-ready rolls with clean edges and reliable performance.
Capabilities: Roll-to-roll conversion, core size conversions (25 mm to 152 mm), diameter optimisation, and bespoke roll configurations.
Built for Production
From large-volume to specialist needs. G3S’s converting capability combines an 8-line slitting and rewinding department with flexible setup options to deliver consistent quality and high-capacity scaling.
Capabilities: Eight slitting lines, duplex differential tension control, processing up to 600 microns, and high-volume industrial runs.
G3S Custom Converting Print Substrates
From precise material trials to high-volume commercial scaling.
At the G3S Group, we don’t just cut materials to size: We prepare them to integrate seamlessly into your automated manufacturing or printing workflows. By matching precise slitting, rewinding, and finishing capabilities to your exact machinery specs, we eliminate material waste and prevent downstream production downtime.
Wide Web Converting
Materials up to 2100 mm wide.
Scalable Processing: From niche specialised trials to massive, high-volume production without changing suppliers.
Material Thickness Flexibility
Substrates: 12 to 600 microns.
Versatility & Precision: Confidently convert lightweight films or heavy technical materials while maintaining pristine structural integrity.
Precision Slitting
Shear-knife and razor-blade slitting.
Clean, Accurate Edges: Fewer jams and smoother feeding in your downstream automated machinery.
Bespoke Roll Widths
Custom slit widths: 50 mm to 500 mm.
Precision-Slit Formats. Delivers targeted narrow-to-medium roll formats tailored exactly to your secondary conversion or packaging machine intakes.
Max Roll Diameters
Max Unwind OD: 1000 mm | Max Rewind OD: 610 mm (up to 1000 mm on selected substrates).
Optimised Run Lengths. Accommodates heavy master input rolls while matching output roll diameters to the physical limits of your payout machinery.
Core Compatibility
Core: Ø25 mm (1″) to Ø152 mm (6″).
Zero Friction: Integrate into your existing printing, laminating, or finishing equipment without adapters.
Controlled Rewinding
Duplex differential rewind tension control.
Consistent Roll Tension: Ensuring material behaves perfectly when unreeled on your production line.
Roll Finishing
Edge trimming, log cutting, and high-precision rewinding.
Pristine, Production-Ready Rolls: Configured directly for onward conversion, printing, or laminating.
Sheet Conversion
In-house sheeting and guillotining capability where required.
Flexible Supply Formats: Whether you require rolls, sheets, or a mix of both, you get a single-source solution that streamlines logistics.
Production Capacity
Eight slitting and rewinding lines.
Guaranteed Supply Security: Eight lines means your ongoing manufacturing programs stay on schedule, even during peak demands.
Quality Management
ISO 9001:2015: Continuous improvement operational framework backed by certified quality management systems.
Consistency: ISO-certified processes deliver batch-to-batch repeatability, full material traceability, and continuous quality audits across every production run.