Flow Controller FC3
Continuous, gravimetric dosage of free-flowing bulk solids
- Electrically controlled flat slider with weighing sensor
- Precise regulation of flow capacity in kg/h
- Summation of total amount in kg
- Compact shape with low installation height,
– ideal for assembly below silos - Control of slider position and position presetting possible
The Flow Controller FC3 is particularly suited for:
- Producing grain blends via controlled dosing from multiple silos – ideal for automated recipe management
- Regulated discharge from silos to ensure continuous feeding of downstream processing equipment
- Retrofitting or replacing outdated dosing and weighing systems with minimal installation effort

Further application examples:
- Continuous production of seed mixtures: Seeds are dosed simultaneously from different silos into a common conveyor, such as a chain conveyor, where the streams are combined in the required proportions.
- Dosing plastic granules and recycled granules in a predetermined ratio.
- Production of feed mixtures by dosing raw materials in the required proportions.
Example: Wheat dosing before the first break – FC3 in operation
Note: For proper operation, the Flow Controller FC3 requires a consistent product supply at the inlet.

Functions
The Flow Controller FC3 is enclosed in a robust steel housing.
An electrically driven slide gate opens continuously according to the desired setpoint.
Free-flowing bulk material passes over a weighing sensor that measures the actual flow rate. The device adjusts the opening of the slide gate until the measured and target flow rates are in balance — enabling precise, continuous dosing.

Applied products
The system is compatible with all free-flowing bulk materials, including: grains, pulses, seeds, granules, pellets, fertilizers, sand, substrates, additives, sugar, minerals and various milled or crushed products.


The main advantages of the Flow Controller FC3 at a glance:
- Low installation height = more available silo space
- Easy integration into existing space
- Accurate and continuous flow rate
- Automated control of material flow
- Process visibility and monitoring
Standard interfaces:
- Output 0(4)-20mA (alternatively configurable as 0-10V output) for flow capacity
- Input 0(4)-20mA (alternatively configurable as 0-10V intput)
for target set point or external process variable (e.g. ampere value of a machine) - Relay output (24V)
for kg-pulses - Relay output (24V)
for alarm notification - Digital input (24V)
as Start/Stop signal - RS485 (configurable as modbus rtu)
All process data and commands can be accessed - RS232
All process data and commands can be accessed
Optionally available interfaces
- Profibus
All process data and commands can be accessed - Profinet
All process data and commands can be accessed - Ethernet/IP
All process data and commands can be accessed - Extern touch control unit
(Control via modbus RTU)
All process data and commands can be accessed - Further interfaces on request.
Brochure
Profibus-interface
Profinet-interface
Manual
Dimension sheets
Size FC3.120 – (Pipe diameter 120 mm)
Presseartikel
15.10.2026 Wheat dosing before the first break – FC3 in operation
17.02.2020 series 12 with new features
24.08.2018 Prozessgrößen automatisch regeln mit dem Flow Controller FC3 (in German)
24.08.2018 Silofüllstand regeln mit dem Flow Controller FC3 (in German)
08.08.2017 Accurate blending of seeds as a factor for success
09.03.2017 Cereal blending optimization with NIR technology
23.02.2017 Modern dosing systems ensure optimum product flow
Video – Dosage with wheat:
Further videos:
Service area with manuals, spare parts lists, downloads, …
