How Much Does Concrete Batching Plant Automation Cost?

If someone answers this question with a single figure, they are either quoting without seeing your plant or there will be a difference later. Automation cost varies a lot from plant to plant. Below I explain openly what changes the price and why — and how the investment pays for itself.

Six items that determine the cost

1. New build or retrofit?

This is the biggest difference. In a plant whose panel, motors and load cells work, if only the software and PLC side changes, the cost is low; field wiring is not touched. In a new plant, panel, sensors, cabling and installation come into play and the total multiplies.

2. Number of inputs/outputs

A plant with 3 aggregate bins and one cement silo is not the same job as one with 6 bins, 3 cements and 3 admixtures. What sets the price is not the plant’s capacity but how many points you control. That is why the IO list is the first thing asked for a quote.

3. Number of scales and weighing structure

Do aggregate, cement, water and admixture have separate scales or a shared one? Cumulative weighing or one by one? Are the load cells connected to the PLC or to a separate indicator? Each of these changes both commissioning time and the software work.

4. PLC and communication

If there is a current PLC that speaks Modbus TCP, it is connected directly. If the system is very old, uses serial communication or a closed protocol, a converter or a PLC replacement is needed. This item alone can noticeably change the total cost.

5. Optional hardware

Moisture probe, touch panel, backup PC, delivery note printer, camera. None is mandatory; at plants that produce a lot, the moisture probe is the item that pays back fastest.

6. Commissioning and training

IO testing, load cell calibration, in-flight measurement, recipe entry and operator training are site work. The plant’s location and the number of days directly affect cost. Preparing settings in simulation beforehand shortens time on site — and that is money.

Why don’t we publish a fixed price online?

Because there are three kinds of buyer, and their needs are different:

• Plant operator — one plant, wants turnkey installation and training
• Automation company — wants a core it can adapt to its own project and installs it itself
• Plant manufacturer — wants a solution branded for them that it can deliver with every plant it builds

Putting one price on the same list would mean quoting the wrong figure to all three.

The real question: how quickly does the investment pay back?

The return on automation is mostly not “labour savings”. The real gain is reduced material loss — and that can be calculated.

A simple framework:

Daily cement          = Daily m³ × cement per m³ (kg)
Overdosed cement      = Daily cement × deviation rate
Daily loss (currency) = Overdosed cement (t) × cement price per tonne

A plant pouring 150 m³ a day with 300 kg of cement per m³ uses 45 tonnes of cement a day. If weighing overdoses by 2 % on average, that is 900 kg a day — about 20 tonnes a month over 22 working days. Multiply by your own current cement price per tonne; the result is only one item of the monthly return on the automation investment.

Add to that:

• If there is no moisture correction, too little aggregate and too much water go in; concrete that misses its class is the most expensive error. (Details: how to calculate moisture correction)
• If residue left on the scale mixes into the next batch, every batch starts wrong
• If no records are kept, you have no document when a dispute with a customer arises
• If month-end figures are estimates, you do not know your real cost

What do you need for a quote?

Three pieces of information are enough, and you already have them:

• IO list — the plant’s input/output list (from the panel drawings)
• PLC type and model
• Scale structure — how many scales, where the load cells are connected

Send them and we will check compatibility and give you a clear figure. If needed, we set up your plant’s screen in simulation and show it running before you buy.

Product details: DKT CPlants — concrete batching plant software · DKT APlants — asphalt plant control software