As pointed out already, the manual and the robot tongs systems mainly consist of standardized parts and subassemblies. With regard to hand-held tongs, the base device consists of an electro-mechanic press spindle drive (TOX-Electric Power Module type EPMR), a tongs suspension, a rivet supply and feeding unit, the control and the setting tool.

The construction of the robot tongs is, on principle, the same but they are equipped with a coupling for the attachment to the robot. The TOX tongs are distinguished by an extremely torsion-resistant construction and a rugged assembly so that a reproducible joining quality can be guaranteed for the solid punch rivet process.

For this purpose the most dynamical press spindle drives EPMR are used, producing a pressing force of up to 55 kN. The working piston is supported by a most precise bearing for load taking and moves at speeds within the range from 0 to max. 200 mm/s. The driving unit is equipped with force and travel transducing sensors so that the work strokes can be realized with a repetitive accuracy of +/- 0.01 mm.