The pneumatic Pneumon ST tensioner permits simple strapping of pallets with steel strap without energy consumption even at high tensions. The system accepts all conventional steel straps of suitable widths. The reliable punch lock ensures a safe grip even without seal. - Low weight: 5.1 kg only and thus easy handling - Reliable punch lock; no need of buying seals - Sealing strength more than 80% of the strap strength - Uniform strap tension through preselection of operating pressure - Suitable for steel strap of 13 mm (1/2"), 16 mm (57(")and 19 mm (3/4") widths