Modern ready mix concrete plants are under constant pressure to produce more concrete in less time while maintaining exceptional quality and consistency. Every improvement in the batching process helps reduce truck turnaround times, increase daily production capacity, and improve profitability. Through the use of precision weigh belts instead of weigh hoppers, today’s most advanced ready mix concrete plants can streamline production without sacrificing the accuracy required to produce high-quality concrete.
Traditional concrete batch plants rely on a weigh hopper to measure aggregates. Each material is weighed separately, one at a time, before being discharged into the charging conveyor or mixer. It’s a proven process that has served the ready mixed concrete industry well for decades.
Aggregate weigh belts take a fundamentally different approach.
Instead of weighing material after it has been discharged into a hopper, each aggregate is weighed continuously as it travels across its own precision weigh bridge. The weigh bridge is a short section of conveyor supported by highly accurate load cells that continuously measure the weight of material moving across the belt. Combined with the belt’s travel speed, the control system calculates the material’s mass flow in real time.
Every aggregate is measured while it is already moving.
This continuous weighing process offers significant advantages over traditional weigh hoppers.
First, it creates the potential to weigh multiple aggregates simultaneously. Rather than measuring one aggregate, stopping, and then measuring the next, each aggregate can be independently metered on its own weigh belt. The result is shorter batch cycles, higher production capacity, and more concrete shipped throughout the day.
Second, each weigh belt is driven by its own Variable Frequency Drive (VFD). Contrary to a common misconception, weigh belts are not power-hungry devices that increase operating costs. In fact, the VFDs improve energy efficiency by using only the amount of power the motor requires at any given moment — no more and no less.
The result is exceptional control of every aggregate entering the batch.
At CMQ Engineering, these independently controlled weigh belts work together as part of the Advantage 250™ concrete batch plant’s Precision Inline Aggregate Blending system. Aggregates are proportioned simultaneously and blended continuously as they travel down the charging conveyor, creating thousands of thin, ribbon-like layers before they ever reach the truck.
It’s a smarter process that reduces batch times, improves consistency, and helps producers maximize plant productivity.
Consistent aggregate proportioning is one of the keys to producing high-quality ready mixed concrete. When every aggregate is measured accurately and blended continuously, producers gain greater confidence that every load will meet the same performance expectations as the last. That level of consistency helps ready mixed concrete producers deliver superior products to their customers while reducing variability throughout the production process.
Because better concrete starts with better batching.