silcomix

Precise and flawless processing of liquid silicone for injection molding

The silcomix is a compactly designed, electrically driven piston pump, metering and mixing system. It is used for continuously processing 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 5 or 55 gal.

Features and Benefits

  • High energy efficiency through servo-electrically driven piston pumps
  • Extremely low material waste through simultaneous drum drainage and use of special supply pumps (material residual quantity in drum < 1 %)
  • User-friendly system operation thanks to 7” touch panel
  • Precise adherence to mixing ratio through synchronous switching of piston pumps (SWIPSYNC)
  • Compact, space-saving system design
  • Compatible with pallet trucks and forklifts
  • Extremely good control behavior; even small shot sizes are possible in optimal quality
  • Flexible operation thanks to processing from 5 or 55 gal. containers (on a chassis)
  • Process reliability thanks to data monitoring and archiving
  • Processing of abrasive media for pigment metering through special sealing technology

New Mixing Unit

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

Click here and learn more!

Technical Specifications

Outflow rate up to 1,200 or 3,600 cc/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 3,625 psi    
Material supply 5 or 55 gal.    
Viscosity up to 1,000,000 cps (higher viscosity available on request)    
Operating voltage 400/230 VAC 3/N/PE/50/60 Hz 480 VAC 3/PE 50/60 Hz 200 VAC 3/PE 50/60 Hz
Dimensions (D x W x H),
Lifter retracted
960 x 1,320 x 1,920 mm    

SWIPSYNC

The servo-electrical drive enables synchronous switching of the piston metering pumps, regardless of the current position of the respective pump piston (switching point synchronization). This prevents deviations from the mixing ratio due to different switching points. The demand-based, automated adaptation of the volume flows of individual components by means of the lifting speed of the piston metering pumps ensures uniform drum drainage of the A and B components. The collapse in pressure flow, and thus also volume flow, is considerably reduced through a special control of the servo drives, with the time also significantly shortened.

Standard

  • Pneumatic driven rams
  • Follower plate for 55 gal. containers
  • Static base support
  • Servo-electrically driven piston pumps with ‘SWIPSYNC’
  • Material pressure monitoring via pressure sensors
  • DOPAG MR40 metering calculator
  • System operation via 7” colour touch panel
  • Analogue level monitoring
  • High-pressure material supply package
  • Injection pressure sensor
  • Real-time remaining time display
  • Interface for all well-known manufacturers of injection molding systems

Optional

  • Drum roll-in unit
  • Drum roller conveyor
  • Active, pneumatic base support
  • Removable follower plates for 5 gal containers
  • Material screens for follower plates
  • Automated drum and pump ventilation
  • Mixing ratio monitoring (volume measuring cells)
  • Pigment or additive metering – up to 4 pigments/additives available
  • Empty signal for 2,64 gal. pigment supply
  • Level detector and electrical agitator for pigment container
  • Pigment/additive quantity measurement (volume flow, quantity)
  • Additional mixing units
  • Mixer cooling
  • Metering pressure monitoring at mixer with digital display
  • Special operating voltage

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