Case 1: a localized hot row disappears
One isolated row ran above 80 °C while the rest of the zone was far cooler. After the intervention the heating curve evened out.
average52.8→°C42.8
Partners wanted in Poland, Czechia and Germany
See inside the dryer. Prevent dryer fires and dry with precision.
Videokontroll is an independent thermal measurement and monitoring system for cross-flow grain dryers. It makes overheating visible before it becomes a fire, and streams live data online so operators and service partners can follow the drying process from anywhere.
DryerDoctor Ltd. is looking for local partners for sales, installation and service.
CoolerHotter
–average °C
–hottest point °C
–rows above 80 °C
160+installations in Hungary
22dryer types
32,000+sensors installed
250 millionrecorded data points
10+ yearsof field experience
An independent measurement layer
Videokontroll is not a dryer controller and does not replace the manufacturer's automation. It adds temperature measurement across the entire drying zone, on any make of cross-flow dryer, so operators and service engineers finally see what happens inside.
- Sensors mounted on the outlet air ducts of the drying zone
- Live thermal map, average temperature and flagged columns
- Data collected online and stored, available in a web application for live and later analysis
- Custom-built for each dryer model
The drying zone cannot be seen directly
Inside the grain column, small differences add up. Videokontroll makes them visible through distributed temperature measurement.
- Uneven grain flow through the drying zone
- Differences in airflow
- Uneven heat distribution
- Local temperature differences, which Videokontroll shows on the thermal map
Row by rowacquisition electronics, data sent via Modbus
Modularcustom-made for each dryer model
468measuring points in our largest system
What the operator sees
A live temperature grid across the entire drying zone, updated continuously.
- Average temperature at a glance
- Measurements displayed as a thermal map
- Columns flagged when discharge runs too slow or too fast
- All data logged, so the process can be reviewed afterwards in our web application
Measurements from real dryers
Thermal maps from operating installations, before and after technical intervention. Pick a case.
Case 2: a sharp jump in two rows
Two rows jumped to 83–91 °C. The cause was traced and fixed, and the next measurement showed a gradual, even heating curve.
peak rows, °C83–91→heating curveeven
Root cause: incorrectly labeled butterfly-valve controls. Mixed-up labels caused confusion on the control levers, so this was a setup issue, not a design flaw. Only a measurement across the whole zone made it visible.
Case 3: from wide spread to an even zone
Columns showed a wide temperature spread. A year later, after the intervention, the distribution across the drying zone was far more uniform.
average56.4→°C45.4
Case 4: season-over-season comparison
Continuous logging lets the same installation be compared from one season to the next. The distribution improved, and the data shows where further fine tuning is needed.
average31.2→°C22.2
Burner test on an empty tower
With the dryer empty, we started the fans and the heat generator. The thermal map shows a malfunctioning burner, even on the cold side.
top left, °C63vsone metre away, °C103
Where do overheated bands come from?
Uneven distribution of air ducts on the dryer surface changes air speed and drying efficiency. The thermal map then shows horizontal overheated sections. This is common in grain dryers in Hungary.
Results are specific to the installations shown and depend on dryer type, crop and operating practice.
Questions it helps to answer
Any overheated areas?
Find hot rows and overheating early, before it becomes a fire risk.
Is the heat load symmetrical?
Spot uneven drying across the zone.
Is the exhaust system working?
Detect irregular discharge and airflow patterns.
Is air velocity right?
Check whether the drying zone runs too low or too high.
Dryer fires start where nobody is looking
Grain, dust and hot air in large volumes make dryers a fire risk. Most dryers give the operator a single core-temperature reading. Videokontroll measures across the whole drying zone, so hot spots and abnormal conditions can be seen early.
Hot spots and hot rows
Localized overheating, such as a row above 80 °C, shows up on the thermal map instead of staying hidden inside the shaft. See the hot-row case.
Heating while the dryer empties
If the tower runs empty, or grain flow stops or is uneven (for example a blocked inlet), the sudden temperature jump becomes visible.
Overlong heat-up
Core temperatures climbing far beyond the intended level during start-up can be spotted and corrected.
Recorded history
All data is logged, so incidents and near-misses can be analyzed afterwards and operating practice improved.
Videokontroll supports early detection and better operation. It does not replace fire-protection systems or safe operating procedures.
Talk to us about fire safetyYour dryer, live, from anywhere
Videokontroll does not stop at the dryer. Measurement data is collected automatically and sent over the internet, so the drying process can be followed online, in real time.
Online data collectionReadings from every measuring point are transmitted continuously to our web application.
Live thermal mapOpen it in any web browser, on a computer, tablet or phone.
Full history storedCompare shifts, days and seasons at any time.
Remote supportOperators, your service team and our experts can look at the same data, without a site visit.
Video
Who we are looking for
Technology partners in Poland, Czechia and Germany, regions with significant maize production where drying is a must.
Sales
Introduce Videokontroll to dryer operators and grain handlers, with fire safety and precision drying as the two key benefits.
Installation
Fit sensors and electronics. We train your team.
Local service
Support customers and interpret measurement data.
Ways to work together
Videokontroll is designed as an independent measurement and monitoring layer.
For existing dryersSupport for diagnosing uneven temperature distribution and other process irregularities.
For modernization projectsAn additional measurement layer alongside existing automation and control systems.
For technical partnersA measurement tool that provides additional information during service, diagnosis and optimization work.
Ideal partners already work on grain drying, storage, automation or dryer modernization.
Let's talk
Tell us about your company and market. We reply personally.
Prefer to call or write directly?
+36 20 391 2137
sfp@dryerdoctor.hu