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Slow Speed WIM (SSWIM®) Scale

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IRD’s Slow Speed Weigh-In-Motion (SSWIM®) Scale can accurately weigh vehicles at speeds between 0 and 20 km/h (0 and 12 mph). Its low operation cost, ease of installation and high accuracy make it the ideal choice for checking truck weights, including axle compliance and bridge formula compliance.

The Model 4020 Scale utilizes two shear beam load cells for weight measurement. Since each scale is approximately 10 feet (3 meters) wide, only one scale would be required per lane. Each scale is mounted flush with the road surface in roads of 175 mm (7 in) minimum depth. The Model 4020 Scale functions in all weather conditions.