Advanced auto-steam shrink system

Design and development of shrink sleeves could be made much easier if small batches of samples could be quickly and easily tested. Karlville’s Stemabox makes testing auto-steam shrink systems easy.

Make ‘live’ shrink sleeve samples in seconds

The Karlville Steambox Pro simulates the shrink tunnel process by using a progressive steam pulverization system along the container in a transversal movement.
It comes with a unique auto-steam shrink system that fits in a compact stainless steel case of 800 mm square by 1800 mm.
An integrated boiler achieves temperatures of up to 95 deg C for the perfect shrinking of 1, 2 or 4 containers of PVC, PET, PETG, OPS or PLA at speeds anywhere from 50 – 200 bph.


  • Give instant shrink sleeve demonstrations
  • Helps manage film quality
  • Works for glass, plastics and multipacks
  • Easy to set up and use anywhere
  • No conveyor or boiler required

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