The Porto-Screed requires only one operator and delivers 4,300 vibrations per minute. The unit's top vibrating speed and amplitude allow operators to pour and strike-off a stiffer mix. Vibrating action brings fine aggregate to the surface without the need for sawing. The 75-pound screed provides 4 hp and is ideal for smaller jobs. It takes twin-beam lengths of 2x4s up to 16 feet.