Hybrid, highly reliable seal less strapping tool for Standard Duty steel strap. Pneumatic tensioning increases speed and guarantees a consistent strap tension. While the seal is made manually and secure. Known for its quality, easy operation and service friendliness, it is the lightest strapping tool of its kind.

    Strap qualities
  • Uniflex up to 850 N/mm2
    Strap dimensions
  • 9.5 - 20.0 x 0.38 - 0.58
    5/8 - 3/4 x .015 - .023"
  • 5.1 kg / 11.2 lbs
Unsurpassed Quality
Advanced Design
Extremely Durable


Semi-automatic strapping tools for the pneumatic tensioning and manual sealless joining of steel straps. The pneumatic drive for the tensioning system guarantees fast and uniform tensioning. The low tool weight (5.1 kg) permits effcient working
without the need for suspension.


  • The semi-pneumatic tool allowing strap tension by air and manual sealing is characterised by its reliability, its ruggedness and its service friendliness
  • Simple operation for strapping of flat packages
  • Pneumatic operation increases speed and strap tension
  • Consistent amount of strap tension is guaranteed
  • The sealless joint reduces the overall strapping costs by approx. 10 % through the elimination of the seal
  • The lightest strapping tool of its kind permits easy operation within a wide working radius


The table below gives you all key factors of this very reliable and durable device that gives everyone who works with it a secure and familiar feeling.

Strapping QualitiesUniflex regular duty max. 850 N/mm2 / 123'000 psi
Strapping Dimensionswidth 9.5 – 20.0 mm / thickness 0.38 – 0.58 mm
Weights5.1 kg without grip ball / 5.2 kg with grip ball
Average seal strengthapprox. 80%
Strap tension6000 N / 1350 lbs


If you want to orient yourself further, we invite you to download one or more copies of the current product information here. You can of course also choose to ask your information request via the contact information form.

Datasheet A390

Product datasheet

Steel to plastic conversion

In addition to the conventional systems for steel strapping, FROMM has developed equipment for polyester strapping. This new type of strapping is flexible, absorbing shock impact during shipping, loading and unloading more effectively than steel strapping. The range is divided in pneumatic, manual and electric tools. Electric tools allow an independent working range, ideal for applications requesting not only flexible handling of the tool but also high tension of the strap.

Plastic Strapping Tools


Please complete the contact request on the right so we can ensure that we can deliver all the information you are looking for quickly. You will be contacted by the appropriate FROMM office in your area.

    ["ar"," au"," at"," bh"," be"," br"," bg"," ca"," cl"," cn"," co"," cz"," dk"," ec"," ee"," fi"," fr"," de"," gr"," hu"," is"," in"," ie"," il"," it"," jp"," sa"," kw"," lv"," lt"," lux"," ma"," mx"," nl"," nz"," no"," pa"," pe"," ph"," pl"," pt"," ro"," rs"," sg"," sk"," za"," kr"," es"," se"," ch"," tw"," th"," tn"," tr"," ua"," ae"," gb"," us"," uy"," om"," my"," vn"," kh"," mm"," id"]