Unwinders and rewinders

For all KROENERT production lines, suiting unwinding and rewinding stations are developed and manufactured as part of a complete production line. Winding can be done for films, foil, paper and special materials (e.g. fleeces). Due to the high degree of standardisation, the components can also be integrated as independent units in third party machines.

Depending on the web width, the production speed, the materials and the production-specific requirements, different winders can be used for this task. KROENERT offers a wide spectrum of standard and special winders.

Single winders

The most important characteristics in an overview:

  • Shaftless or with winding shafts
  • Both winding directions
  • Driven or with brakes
  • Lateral adjustment options for the reels
  • Movable with edge control
  • Rewinder with lay-on roller
  • Different core diameters
  • Web tension control by load cell/pendulum roller or control by means of diameter calculation
  • Reel handling system

Turret winder

The most important characteristics in an overview:

  • Automatic reel change at web speeds of up to 1200 m/min
  • Both winding directions
  • Shaftless or with winding shafts
  • Driven or with brakes
  • Lateral adjustment options for the reels
  • Movable with edge control
  • Rewinder with lay-on roller
  • Different core diameters
  • Web tension control by pendulum roller
  • Deflection idler rollers driven (optional)
  • No foldover on reel changeover (optional)

Special winders

For particularly demanding tasks, KROENERT developed special winder solutions. This also allows handling of materials with difficult processing properties. We can also increase the productivity of your process. Some examples:

  • Unwinding thin aluminum foil < 6 µm, with patented following roller control
  • Unwinding in butt-splice design
  • Rewinding of special adhesive tapes
  • Rewinding without glue preparation of the core  (tapeless splice)

Equipment and performance profile

  • Working width from 600 to 3.300 mm
  • Reel diameter 800-1.800 mm
  • Speed up to 2.000 m/min
  • Web tensions of 20 to 2.500 N
  • Reel direction change with unwinding from below or above without standstill or refitting (optional)
  • Reel direction change with rewinding from below or above without refitting (optional)
  • Compact design and short web paths despite reel mounting of two jumbo reel of the same size
  • Optimisation of remaining length and loose web
  • Four individually movable chucks allow for taking up rollers of different widths without standstill
  • Central alignment of the reels to each other
  • Solid construction for weights up to 5 t per reel (total weight 10 t)

Reel handling

Time-saving and secure logistics at the unwinders and rewinders increases productivity. For more information on roller handling click here

News

Change in Management

Markus Waterkamp appointed as further managing director

Latest iNews

Actual iNews is published in October 2016

Environmental Partnership

KROENERT is official member of Hamburg's Environmental...

Exhibitions

Interplastica

January 23 - 26, 2018, Moscow, Russia

PlastIndia

February 7 - 12, 2018,

Gandhinagar, Gujarat, India

Composite-Expo

February 27 - March 1, 2018

Moscow, Russia

booth No.

Symposia

No news available.
Zum Seitenanfang