Swiss Rollvis (since 1970) focuses on planetary roller screws: 3.5-210 mm shaft diameters, 1.0-50 mm leads and 3.9-3800 kN dynamic load ratings; the HRV heavy-duty series starts at 60 mm shafts with even higher load density for electro-mechanical replacement of hydraulics. Internal synchronizing gears with precision-ground shaft, rollers and nut give up to 15x ball-screw life, >40 in/sec speed and 3G acceleration; ISO 9001:2015 and EN 9100:2018 certified for robotic joints, prosthetics, injection molding and aerospace.
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