Precise and flawless processing of liquid silicone for injection molding

The silcomix PE200 is a compactly designed, electrically driven piston pump, metering and mixing system. It is used for continuous processing of medium to high-viscosity, silicone-based media with a mixing ratio of 100:100. Metering is carried out directly from the original containers with a size of 20 or 200 l.

Features and Benefits

  • High energy-efficiency due to servoelectrically driven piston pumps
  • Simultaneous drum drainage
  • Material residues in drum < 1 %
  • Processing from 20 or 200 l containers (on one chassis)
  • Synchronous changeover of piston pumps "SWIPSYNC"
  • Pressure-controlled metering
  • Analog filling level monitoring
  • Special sealing technology for processing abrasive media (for color injection)
  • Highly comfortable system operation
  • Compact, space-saving system design

New Mixing Unit

DOPAG developed a new mixing unit for the LSR pump silcomix. The new design is unique on the market and simplifies operationwhile ensuring shorter setup times and greater system availability.

Klick here and learn more!

Technical Specifications

Outflow rate up to 1.2 or 3.6 l/min (at max. 20 or 12 double strokes per minute and at MR 100:100, depending on viscosity)
Mixing ratio 100:100 (further ratios available on request)
Color injection metering up to 4 colors with a ratio of 0.2 - 5% each
Maximum working pressure 250 bar
Material supply 20 or 200 l
Viscosity up to 1,000,000 mPa s (higher viscosity available on request)
Operating voltage 400/230 VAC 3/N/PE / 50/60 Hz
Dimensions (D x W x H),
Lifter retracted
960 x 1,320 x 1,920 mm


The servo-electrical drive allows for the synchronous changeover between the piston metering pumps, independently of the current position of the related pump piston (Switching Point Synchronisation). This prevents the mixing ratio from shift ing due to diff erent changeover positions. An even drum drainage of the A and B component is granted by the needs-oriented automatic adjustment of the volume flows of the single components via the stroke speed of the piston metering pumps. At the same time, a special control of the servo drives significantly reduces the drop of the pressure and thus of the volume flow while also cutting down on the time required.


  • Compact enclosed chassis, transportable by fork-lift truck
  • Pneumatic pump lifter
  • Follower plate for 200 l containers
  • Static drum bottom support
  • Servo-electrically driven piston pump with "SWIPSYNC"
  • Material pressure monitoring via pressure sensors
  • Metering computer DOPAG MR40
  • System operation via 7" Color Touch Panel
  • Analog level monitoring
  • High-pressure material hose package
  • Sensor for injection pressure
  • Real-time display of remaining runtime


  • Drum roll-in device
  • Roller conveyor
  • Active pneumatic drum bottom support
  • Exchangeable follower plates for 20 l container
  • Material sieve for follower plates
  • Automatic drum and pump de-aeration
  • Mixing ratio monitoring (volumetric flow meters)
  • Color or additive injection – up to 4 colors/additives possible
  • Empty warning for 10 l color supply
  • Level probe and electric agitator for color cart
  • Color/additive quantity measurement (volume flow, ratio)
  • Additional mixing units
  • Mixer cooling
  • Metering pressure monitoring at mixer with digial display
  • Special operating voltage
  • Different machine interfaces (e.g. OPC-UA)

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