If you've got rivets to set, you won't find a better tool available than the Numatx HTC-3 rivet squeezing system. The Numatx squeezer is smaller and lighter than comparable pneumatic-only units and delivers constant force through the full stroke of the tool, meaning that you can set different lengths of rivets without stopping to change settings.
There is no adjustable ram... with the Numatx unit, you simply set the pressure for the rivet diameter that you are using, and rivet away. When the material thickness and rivet length change, you don't have to adjust anything. The unit's compact size allows you to get into places you could not reach with a handheld or pneumatic-only unit.
Set up to 1/8" aluminum solid rivets with up to 3,070 lbs. of force.
The Numatx unit uses shop air at 90psi, so you can use it anywhere you can get an air hose. The handheld portion of the squeezer is fully hydraulic and weighs only one pound (without C-yoke). This unit accepts industry standard Chicago Pneumatic CP214 type yokes, attached with included quick-release shear pins, and can be ordered with various c-yokes if you don't already have compatible equipment.
32 lbs (15Kg) shipping weight.