The STS is a SIAT pneumatic strapping tool for steel straps with seal. It is a powerful and reliable strapping tool, designed for use in heavy duty industrial applications, particularly in low pressure air plants. Thanks to the new design (smaller, reinforced and lighter body), the tool can work perfectly even with low air pressure (from 4.5 bars) and can offer a constant and superior seal notch integrity. The lower air pressure function (from 4.5 bar) is also available for 25 mm steel straps.