String Tension Boy

Simple string tensioning device for road plates.

■Labor-saving measurement work for cost reduction The String Tensioner is a simple string tensioning device that can stretch a string to any length between 0.5 to 10 meters while maintaining the tension of the string stretched between two supports. Heights from the subgrade cutting surface and the asphalt pavement leveling surface can be easily measured. Traditionally, two people were required to stretch the string, while a third person confirmed the height between the two points where the string was stretched, necessitating three workers. However, by using the String Tensioner, these tasks can be performed by one person. Additionally, by using a self-supporting photographic scale, one person can take construction management photos alone. ■Equipped with an automatic retracting device Even on a 10-meter wide road, there is almost no sag. After measurements are completed, the string is automatically retracted, eliminating the need for manual rewinding. ■Compact and easy to carry with one hand It can be stored in a space-saving manner and is easy to transport.

EarthworksPaving of sidewalks, roads, parking lots and stadiumsMotor graders, roadbed machines, compaction machines