Turret UnwinderFlexible for various core formats — shaftless roll support
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The SOMATEC UW-C is an automatic turret unwinder in shaftless design. Rolls are clamped directly via chucks without winding shafts — ideal for frequently changing roll widths, as width differences up to 250 mm are compensated steplessly. The overlap splice runs automatically at full production speed for uninterrupted non-stop operation.
Technical Documentation
Brochure
Manual
STEP / Drawing
Technical Data
Max. Production Speed500 m/min
Max. Working Width2.000 mm
Max. Roll Diameter1.200 mm
Max. Roll Weight1.500 kg
Core Inner Diameterab 76,2 (3") mm
Core Width Tolerance±100 mm
Roll SupportShaftless
Benefits
Variable support of cardboard or steel cores
Non-stop unwinding through automatic overlap splice at maximum production speed
Low-loss connection through minimal residual lengths and short overlap splice
Thick and tough materials can be cut with the active striking knife
Optionally with web joining system without preparation of the new roll
Expandable base machine — the UW-C can be equipped with additional optional function units (lifting arms, lifting table and cart for roll loading, both unwinding directions)
Available Options
Automated Splicingyes, overlap
Web Guidingoptional
Active Striking Knifeoptional
Web Joining Systemoptional
Lifting Armsoptional
Lifting Table / Cartoptional
Both Unwinding Directionsoptional
More options on request
Applications
The SOMATEC UW-C processes virtually all web-based materials — particularly efficient with frequently changing roll widths. The shaftless support compensates width differences up to 250 mm without mechanical changeover.
Flexible production — Applications with frequently changing material widths and formats
Film converting — Packaging films, technical films, shrink and barrier films
Adhesive tape industry — Tape substrates and release liners in varying widths
Nonwoven processing — Nonwovens for hygiene, medical and filtration
Flooring production — PVC flooring (LVT, vinyl) and carrier webs
Artificial leather production — PVC and PU artificial leather webs
Paper and board processing — Coating and lamination lines
Technical textiles and roofing — Geotextiles, vapor barriers, sealing films
Why the UW-C?
Robust construction, sophisticated roll change systems and perfect control make the SOMATEC UW-C an absolutely process-reliable component. The shaftless design enables variable support of cardboard or steel cores. Core widths may vary within ±100 mm — for larger core widths, the versatile turret unwinder UW-S is recommended. An optional web joining system without preparation of the new roll is available, significantly reducing setup times. Thick and tough materials can also be cut with the active striking knife.
Typical Configurations
Flexible production: UW-C with motorized mandrel adjustment for quick changeover between different core formats for nonwovens, papers and films
Thick materials: UW-C with active striking knife for reliable cutting in converting, coating and lamination lines
Optimized setup: UW-C with web joining system without preparation of the new roll, lifting arms and lifting table for roll loading
Why SOMATEC
Over 35 years of specialization — SOMATEC is one of the leading manufacturers of winding machines and custom converting machinery. Decades of experience in development and manufacturing for the most demanding industrial applications.
Made in Germany — Robust construction, precise mechanics and durable components. Designed and manufactured in Hameln, Germany — for 24/7 industrial operation in plastics, nonwovens, paper and flooring industries.
Modular winding components — Versatile functional units enable customer-specific configurations. From compact basic units to high-performance lines — every machine is precisely tailored to the customer's process.
Proven with international market leaders — References in nonwoven, paper, films, composites, flooring, adhesive tapes, artificial leather and technical textiles. SOMATEC machines run worldwide in the most demanding production lines.
Frequently Asked Questions
What distinguishes the UW-C from the UW-E? — The UW-C is optimized for compact installation situations. Where space for a standard turret unwinder is limited, the UW-C offers the same functionality in a reduced footprint — without compromising web tension and changeover accuracy.
What materials is the UW-C suitable for? — Films, paper, nonwovens, composite materials and technical textiles. Web tension is precisely controllable throughout the entire unwind.
Can the UW-C be retrofitted? — Yes — SOMATEC offers the UW-C also as a retrofit solution for existing lines. SOMATEC checks the installation situation and supports the integration.
How does the roll change work? — On-the-fly, without production stop. While one roll is being unwound, the next can be prepared.
How do I decide between UW-E, UW-C and UW-S? — SOMATEC analyzes your requirements for installation space, roll weight, web tension and speed and recommends the appropriate variant.
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