This Truck Scale Used to Need Welding Every Year. Three Years Later, It Hasn’t Cracked Once.

The Problem

A multi-site asphalt producer near Tulsa was running a truck scale that had been installed years earlier by another provider. After eleven years in service, the deck started developing recurring cracks that needed repeated welding and patching. The original I-beam design couldn’t keep up with the heavy truck traffic and daily volume the operation put through it. The repairs kept creating downtime and raising doubts about how much longer the scale could hold up.

The old scale also ran on an analog system with traditional junction boxes. Every adjustment meant a technician moving back and forth between the indicator and the junction box, which added time to routine service and slowed down troubleshooting on a scale that was already causing enough headaches.

The Fix

SSC’s Tulsa team recommended a Mettler Toledo truck scale built with an orthotropic rib deck and PDX Digital PowerCells. The rib deck spreads load forces across the entire surface the way a modern bridge distributes repeated traffic cycles, instead of concentrating stress the way the old I-beam design did. The PDX PowerCells eliminate junction boxes entirely, so every adjustment and calibration now happens at the terminal, with onboard diagnostics that flag issues before they become a service call.

This customer runs scales across multiple locations, which is where SSC’s multi-site calibration program comes in: one PM cadence, one point of contact, and every site on the same accreditation and service schedule instead of juggling regional vendors.

The Result

Three years in, the new deck hasn’t shown a single sign of stress or cracking under daily use. Standard calibration, twice a year, is the only maintenance this scale has needed. The results were strong enough that the customer has since replaced four more scales with the same orthotropic deck and PDX configuration.