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The Sienna Inverted Horizontal Flow wrapping machine is the latest advancement of the ULMA PV350 family. It is available in both flow wrap and shrink wrap versions for wrapping loose, irregularly shaped products in polypropylene or polyolefin films.


The new SIENNA flow wrapping machine is the result of ULMA`s commitment to innovation and technological development. This ongoing process brings us a new family of machines with an improved performance which is easier to use.

The new SIENNA flow wrapping machine features all the strength, reliability, and operation easiness of the ULMA machines. Added to these well known characteristics of ULMA, the new model also features a higher flexibility and versatility (as the sealing head is powered with an independent motor), together with a much easier operation thanks to its touch screen control panel.

The great flexibility, proven reliability and the innovative technology applied to the new SIENNA flow wrapping family, turn this new family into the ideal packaging machine for a very wide range of applications in the food industry and specially in the produce, meat, cheese,… sectors.


  • Electronic packaging machine powered with independent motors synchronised electronically.
  • Machine is built on a stainless steel frame in a cantilever design, to avoid dirt and dust accumulation and allowing for optimum cleaning and hygiene. It also gives easy access to the mechanical and electrical components.
  • Motorised fin seal roller height adjustment of the longitudinal sealing system to make it easier its adjustment.
  • The box motion type cross sealing station is provided with 400 mm. wide jaws. The sealing head is equipped with an independent servo motor to provide a high level of flexibility and optimise the cycle time to produce a minimal pack length in the shortest time possible.
  • Retractable reel holder for easy film reel changes. It is equipped with a motorised film drive to maintain the film tension through the forming box area.
  • In-feed conveyor 2 meters long fully made in stainless steel.
  • The touch screen control panel allows a simple and very intuitive access to the machine parameters. It allows various parameter settings for each product (bag length, speed, sealing time, etc…).
  • The “No product - No Bag” and “Misplaced product safety” functions are standard in this machine.


  • Combined version for both flow wrap and shrink wrap films.
  • Low density polyethylene film version (LDPE).
  • Various types and lengths of in-feed conveyors.
  • Photocell for print registered film.
  • Closing belts for short size products.