compomix: dispensing system for composites processing

Perfect dispensing of epoxy and polyurethane

The compomix is a compact and solvent-free metering and mixing system. It is used to handle low to medium viscosity multi-component media such as polyurethane and epoxy for the production of fibre-reinforced plastics. Material pressure vessels ensure a reliable material supply. The systems compomix BL and compomix FI are application-specific solutions developed by DOPAG for the unique requirements of the composites market.

compomix FI - for the impregnation of fibre materials

This compomix model is a dedicated solution to fibre impregnation in vacuum infusion, RTM, pultrusion, and filament winding processes.

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compomix BL - for rotor blade production

We have developed this model specifically for use in infusion processes in the production of rotor blades for wind power generators. Below you will find more information about the technical specifications features and advantages of the compomix BL.


  • 2K system
  • control cabinet and material pressure vessel mounted onto a completely enclosed, mobile chassis
  • Metering pumps with overpressure protection
  • Axial piston pump of the B-component with magnetic coupling and manual stroke adjustment
  • Three-phase asynchronous motor with external fan
  • Metering computer MR40
  • Control and regulation of mixing ratio by use of volume counters


  • 3K system
  • Material pressure vessel with preparation for automatic refi lling, level control and regulation of the mixing ratio in the bypass
  • Axial piston pump with magnetic coupling for the A-component
  • Feed pumps
  • Transfer pumps to refi ll the optional material pressure vessel
  • Heating via fan heater
  • Cabinet cooling
  • Touch-screen control system

Technical Specifications

Technical Specifications
  1. Flow rate depending on mixing ratio and viscosity

    2 - 20 l/min (60 l/min)

  2. Mixing ratio

    100:5 - 100:100, volumetric

  3. Material supply

    circular pipeline, original container, pressure vessels

  4. Viscosity range

    1 mPas - 50.000 mPas

  5. Material characteristics


  6. Power supply

    3 × 400 V / 50 Hz

  7. Max. air inlet pressure

    6 bar

  8. Dimensions L × W × H

    1350 × 1850 × 2100 mm

  9. Weight

    approx. 1500 kg