Capacity – Currently there are three types or qualities of truck scale out there:

Cheap, low capacity throw away scales – These scales almost always have a capacity of 100 tons but have a low CLC (Concentrated Load Capacity) – less than 25 ton CLC. These scale don’t last because of their bridge design. Typically they use sheet steel that has been sent through a press to create three sides of a tube. The fourth side is created when welding to the deck steel. Ususally the steel used is lower gage and the welds do not hold up to heavy traffic. Life expectancy on these scales are 5-7 years.
Quality, low capacity scales – These scales are typically used in shipping finished products out of a manufacturing plant or warehouse where each truck is carrying a legal load and the duty cycle is light. These scale all carry a nominal capacity of 100 tons and a CLC from 30 to 35 tons. The difference on these scales is the construction is made from heavy gage tubing (typically 8” or 10” depending on the bridge span. Life expectancy on these scales are 15-20 years if in the proper application.
Quality, High Capacity scales – These scales are used wherever raw materials are being brought in from off site or from a pit where the axle loads are extreme. These scale carry a nominal capacity of 135 tons or greater and a CLC of no less than 35 tons. The deck is constructed out of heavy gag tubing with a greater concentration and number of beams or the deck is constructed of pressed I beams and concrete. Life expectancy on these scales are 20-50 years. Note: This is the capacity we recommend in any timber application!