The Laser Screed is a self-propelled four wheel drive, four wheel steer unit. Each model has a telescoping boom and interchangeable head.

The Screed has an automatic laser control system that ensures an accurate level finish through the use of electro-hydraulic controls. Laser receivers mounted at each end of the screed head receive a signal from a transmitter multiple times per second providing totally automatic control to finished floor level.

A single laser transmitter controls up to 1000 ft (or greater depending upon model) enabling the screeds to work to a tolerance of 3mm or better.

The screeding/compacting head is then lowered to the grade established by the laser-level transmitter. Retraction of the boom causes the screed head to be drawn across the fresh concrete which is leveled and compacted in a single pass. Once a pass is completed, the machine is repositioned to the right with some overlap on the previously screeded concrete. The operation is repeated, ensuring optimum finished level tolerances are attained across the whole floor area.

The screed head itself consists of 3 parts: the plow, the auger, and the vibrator. The plow disperses the concrete evenly, the auger removes the excess material to finished grade, and the vibrator smoothes the surface.

In situations where floor design specifies a dry-shake applied surface hardener the Laser Screed's method of operation is matched in terms of speed and working method by the Topping Spreader, resulting in automatic concrete screeding and dry-shake application. Providing industry with maximum productivity while maintaining consistent levels of quality.

How A Somero Laser Screed Works. (2008). In Somero :: Laser Screed information Center. Retrieved 20:34, July 11, 2008, from http://www.somero.com/laserscreeds.php