Turret unwinds & winders

PYRADIA TUNW & TREW SERIES is our most versatile series of automatic turret unwinds and winders, capable of handling a wide variety of web, such as films, foils, paper, nonwovens and laminates.

They can be configured with a central axis, or with a phantom axis when space limitation requires a more compact design, with either shafted, shaftless or cantilevered configuration. Unwinds are either equipped with tension control brakes, or driven, depending on tension requirement and splice option. Winders are available with three drive configurations: center, surface or surface/center, which is selected according to substrate range, tensile strength, product roll compactness requirement, roll diameter and weight.

 

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Various splicing options are available, from manual splice tables unwinds and manual cut & transfer winders, to fully automatic PLC controlled continuous operation. Automatic systems control the entire sequence, from turret rotation to splice or transfer, based on material length or roll diameter. Automatic turrets are typically equipped with pneumatically counterbalanced dancer rolls, for accurate tension control, either constant or taper for larger product rolls.

Lay-on rolls, either driven or idling, control roll compactness by minimizing air entrapment and web tension control. Mounted on linear bearings for constant pressure through-out roll build-up, lay-on rolls are also available with minimum gap mode of operation, for slippery plastics or low tensile strength webs.

With over 50 years of experience, extensive process knowledge, modeling software and pilot equipment, Pyradia engineers will analyse your specifications and recommend the ideal production line configuration for optimal process efficiency.

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Features

  • Pyradia turret unwind and winder features:
  • Roll diameters up to Ø40in, Ø48in or Ø60in depending on model or more
  • Roll weights 3500lbs, 6000lbs or 10,000lbs depending on model or more
  • Substrate width from 12in to 120in or larger
  • Production speeds up to 2000 FPM or more
  • Available in shaftless, shafted or cantilevered configurations
  • Aftermarket services
  • CSA and cCSAus certification
  • NFPA 86, OSHA & FM standard compliant

    • Options

  • The following options are available on Pyradia turret unwinds and winders:
  • Automatic splicing or cut & transfer sequence
  • Web guiding
  • Web spreading wrinkle control
  • Servo drives
  • Shear slitting, score cutting, edge trim
  • Static control
  • Skewing roll
  • Airshaft and product roll handling equipment
  • Cleanroom configuration
  • Scada and remote communication systems
  • Installation and start-up services

    • Heat treating furnaces applications:

    Nonwovens

    Adhesive coating-laminating

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