The precursor industry, such as unloading of Polyacrylonitrile (PAN) tow for a carbon fibre oxidation & carbonisation line, is continuously trending towards larger loads in a single package. The leading creel technology for this industry is Cygnet Texkimp’s unique design for unwinding large packages of delicate material and multi-filaments from precision cross-wound cheeses. The layout of these large creels is designed over multiple levels to minimise their foot print and offering bespoke configurations. Integrated robotics and handling equipment is often included to minimise process down time and eliminates fibre damage during loading.
Cygnet Texkimp offer both mechanical and fully driven electrical tension control. The mechanical system allows the lowest possible running tension from a non-driven system whilst maintaining full control of the unwinding tow. The fully driven system allows low and fixed tensions which are unaffected by package diameter, weight or process speeds.
Another variant of the precursor creel is the Cygnet Texkimp box creel system, which consists of a mechanical guiding and control system to allow precursors to be unloaded from bulk containers.
While the industry trend is towards larger packages for longer run times, Cygnet Texkimp maintains a family of creel products to suit a wide range of package sizes. These products are often used for smaller tow count precursors or in pilot scale production and testing facilities.
|Process||Unloading of Precursor into thermal / mechanical processes, e.g.
carbon fibre manufacture from PAN precursor and
unwinding of aramids for thermal processing
|Materials/Applications||Polyacrylonitrile (PAN) for the production of Oxidised PAN
and Carbon Fibre
|Typical Speed||0.5m/min to 20m/min|
|Unwinding||Type: Unrolling of packages or drawing from boxes
Yarn Paths: Vertical or Horizontal
|Typical Arrangement||Configuration on single and multiple floors to suit site application
Top sheet preparation of the web for downstream processing
Customisable, trolley or fixed design
|Packages||Type: Precision cross-wound packages on tubes
Max. Traverse: Not fixed (750mm typical)
Max. Dia: Not fixed (850mm and larger)
Max. Weight: 500kg (1,100lb)Bulk Containers
Max. Traverse: Not applicable
Max. Dim: Not fixed (typical 1000mm x 1000mm x 1500mm tall)
Max. Weight: Not fixed (typical 1500kgs (3,300lbs)
|Features Available||All fibre direction changes are via large diameter rollers
Minimum fibres stress to minimise fibre filamentation
Centrally adjustable tension system for optimum process control
Unique package holder design for easy loading and doffing
Vertical or horizontal feed
End break detection
Automated package handling and loading
Various mobile options to optimise loading, handling and minimise
Process line downtime
|Features – Electrical Driven||Fully driven system ensuring fixed tension unaffected by package
Diameter, weight or process speeds.
|Features – Mechanical||Individual quick stopping at each position
Controlled unwinding without over rotation in event of out of balance packages
Download our Percursor PAN Creel Specification sheet