FROMM Packaging Systems Canada



Manual sealless steel strapping tool with MicroLock

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A337 – Manual Sealless Steel Strapping Tool with Microlock


  • The MicroLock™ sealless system guarantees a maximum of security of the sealless steel strapping joint against unlocking
  • The tool can handle regular duty and high tensile steel strapping
  • The tool can handle steel strapping up to a thickness of 0.64 mm / .025”
  • Thanks to the special tensioning system (free wheeling) no loss of strap tension
  • The sealing mechanism is completely closed
  • The adjustment of the cutting and sealing depth is simple
  •  The feed wheel and the die and cutter support are easy to change


Strapping qualities: Uniflex and Ultraflex max. 1100 N/mm2 / 160’000 psi

Strapping dimensions: widths : 9.5 – 20.0 mm / 3/8 – ¾”thicknesses: 0.38 – 0.63 mm / .015 – .025”

Weights: 4.45 kg / 9.8 lbs Normal-version 4.7 kg / 10.4 lbs TW-version

Sealless joint: Fromm MicroLock™Average seal strength: approx. 80 %

TW-version available: Torque wrench tensioning system

Suspension (Optional): Suspension for vertical and horizontal applications; has to be ordered separately

Handle for horizontal applications;  has to be ordered separately

Documents & Links

View A337 Manual Sealless Steel Strapping Tool Datasheet

Get a Quote for Volume Pricing

How to manually strap the packages with Manual A337 Steel Bander

Weight 10.4 lbs