The 3SR power unit is the ultimate power unit for all your rescue operations, and is proven by its 3-stage radial system. Each stage of a power unit provides a flow and pressure. The more power is available in the 1st and 2nd stages, the greater the performance, as there is a better transition between stages. By delivering significant power in the first stage, the 3SR may not even enter the 2nd or 3rd stage to do its job.
To explain: A standard B-post from a car requires 40 tons to cut. The rescuer has a 120-ton cutter available. In the 1st stage, the 3SR unit delivers 34% of its power. The result is that in this first stage the car post is cut; you already have 41 tons at your disposal.
