Control system for weight belt feeder

The DE-CONscrew control system is used to support the operation of weight belt feeders for dosing bulk materials. Due to continuous performance determination and evaluation, automatic performance adjustment can be made at any time.


  • Controls the setpoint-precise dosing according to the „Loss in Weight“ principle into a continuous process
  • Supports gravimetric and volumetric operation of weight belt weighers when feeding normal to free-flowing bulk materials
  • Control system for dosing, measuring or batch belt weighers
  • Highly accurate dosing due to adaptive control
  • Optimized refill handling
  • Integrated control of a conveyor system (option)
  • Automatic scale calibration
  • Speed monitoring of the discharge unit (digital / analog)
  • Continuous performance determination and analysis
    for automatic performance adjustment in startup and shutdown mode
  • Single and group operation

We rise to every challenge. We offer custom-fit solutions for dosing, weighing, conveying and refilling of

Bulk solids & Powder and Pastes & Liquids


  • Time-based throughput counters
  • Digital filtering of the weight values ( detection digital / analog) for an exact calculation of the feeding capacity
  • High-resolution weight recording via digital/analog load cells
  • Direct connection of load cells (4/6-wire technology)
  • Control of frequency inverter serial/analog
  • Internal alarm buffer
  • Integrated web server for complete configuration and parameterization
  • Can be used in the control cabinet or directly in the plant
  • 4 digital inputs/ and outputs with a number of standard functions (enable, operating contact, external fault, refill process, alarm, etc.) assignable or available for free use


  • Digital/Analog Extensions
  • Operating Options
    • DE-COP 5 single (for single operation of a dosing unit)
    • DE-COP 5 multi (for operating up to 6 dosing units)
    • DE-COP 16 (for operating up to 16 dosing units)
    • Provis (Line software: up to 8 lines á 16 dosing units)
    • AIO-Control (Plant visualization = dosing units + other devices)


  • Numerous interface protocols OnBoard and selectable/ parameterizable via web server
  • Data contents of interface can be adapted flexibly
  • Greatest possible flexibility during project planning, since data contents are available on all interfaces

Supported protocols:

  • Profinet
  • Modbus TCP
  • Ethernet IP
  • EtherCAT
  • Profibus
  • RK512
  • OPC UA
  • serial fieldbus

Our control systems
are extremely flexible and fit
also to your dosing technology

Control system for loss in weight feeder

Detailed overview of DE-CONscrew and Siwarex FTC

To overview


Would you like to learn more about our products?

We look forward to advising you:

PHONE: +49 2247 918 90
E-MAIL: kontakt(at)

Send a message:

Your contact

Björn Demmer

Shareholder - General manager

PHONE: +49 2247 918 90
E-MAIL: bdemmer(at)

Heinz Demmer

Shareholder - General manager

PHONE: +49 2247 918 90
E-MAIL: hdemmer(at)