Asphalt machinery

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Bitumen scales: The bitumen content the mix design specifies, in the mix.

Bitumen content sets the quality and the cost of every tonne of asphalt. iOLABS bitumen scales weigh hot bitumen with high-precision load cells in a double-wall vessel that holds the temperature, and discharge to the mixer spray bars or through a pump.

iOLABS heated bitumen scale

What you gain

  • Accuracy that pays

    A tenth of a point in bitumen content is tonnes of bitumen a year. High-precision load cells and weighing free from the thermal expansion of the structure.

  • The bitumen stays fluid

    Double-wall vessel with continuous hot-oil flow from the plant's oil heater. If the plant has no oil heater, the scale comes with a built-in electric oil heater.

  • Discharge the way the mixer needs it

    By gravity to the bitumen spray bars or with a bitumen pump, depending on the plant layout.

  • Part of the recipe

    Connects to iAsphalt or any automation. Bitumen content per recipe is logged per batch and compared with the theoretical value.

How it works

  1. 01

    Sizing

    Batch size, mixer position, availability of an oil heater, discharge method. From that follow vessel size, heating and pump.

  2. 02

    Manufacturing

    Double-wall vessel, load cells, temperature sensor, valves or pump, tested in our workshop.

  3. 03

    Fitting and calibration

    Mounted above the mixer, connected to the oil circuit and the automation, calibrated with known weights, test batches.

Specifications

Scale
VesselDouble wall, continuous hot-oil flow from the plant's oil heater
Heating without oil heaterBuilt-in oil heater with electric heating elements
WeighingHigh-precision load cells
DischargeGravity to the mixer spray bars or bitumen pump
ConnectioniAsphalt or any automation
SensorsiOLABS-made temperature sensors for bitumen and oil circuit

Media

References

FAQ

My plant has no oil heater. Can I still have a scale?

Yes. The scale is delivered with a built-in electric oil heater that heats the oil in the double wall on its own.

Gravity or pump?

If the scale can sit above the mixer, gravity discharge to the spray bars is simpler and has no moving parts. If not, a bitumen pump discharges at a controlled rate.

Does it replace another manufacturer's scale?

Yes. It is built to the dimensions and mounting of the existing one so the swap takes a day.

Want accuracy in bitumen content?

Tell us the plant and the batch size.