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CATEGORIES

Piston Metering Systems

DOPAG piston pump metering and mixing systems feature a modular and customer-specific design. Therefore, different basic configurations are available with regard to the intended application and the requirements.

PRODUCTS

  • Viscomix

    Viscomix
    The viscomix metering system is particularly suitable for sealing and bonding applications in the transport and insulated glass industries that require a continuous material supply.

    The VISCO-MIX H200 is a hydraulically powered two component, high quality metering and mixing system suitable for processing medium to high viscosity materials at an variable mixing ratio. The material supply with the base component is pumped directly from standard 200 litre size drums. The hardener is fed directly from 30 litre size drums or by pressure vessel.

    The VISCO-MIX P80 is a pneumatically driven, variable mixing ratio, two component metering and mixing system for processing medium to high viscosity media. Both the base and the hardener materials are supplied by 80 litre size drum pumps fed directly from containers of between 20 litres and 80 litres capacity. The “B” component can also be fed by a pressure feed container.
    Function viscomix H200
    Both the base and hardener materials remain separate until they reach the static mixing system, where they are homogeneously mixed and dispensed through the dispensing gun. After use, the static special mixing system is purged with base material to avoid material curing within the mixer system.
    Function viscomix P80
    The materials are fed by pumps from their original drums and kept separate until they enter the mixing block, following which they are mixed homogeneously by the static mixing system. After use, the plastic static mixer is disposed of and replaced, avoiding the use of flushing agents.
    Features and benefits
    Compact size
    Variable mixing ratio
    No solvent flushing
    High contact pressure with high viscous media
    Static mixer with removable mixing elements for viscomix H200 and plastic mixer for viscomix P80
    Technical Specifications
      viscomix H200 viscomix P80
    Viscosity range up to 2.5 Mio. mPa s up to 2.5 Mio. mPa s
    Metering ratio 5:1 to 20:1 (volume) 100:5 to 100:20 (volume)
    Flow rate up to 2.5 l/min per 20 cycles, depending on the viscosity up to 0.6 l/min per 20 cycles, depending on the viscosity
    Air inlet pressure supply 6 bar 6 bar
    Air inlet connection 1/2” BSP 1/2” BSP
    Air consumption 300 l/min 300 l/min
    Drum size A component 200 l, B component 30 l/pressure vessel A component 20 to 80 l, B component 20 to 80 l/pressure tank
    Dimensions (L x W x H) approx. 1800 x 1200 x 2470 mm 900 x 900 x 1400 mm
    Weight approx. 700 kg approx. 150 kg, depending on theapprox. 150 kg, depending on the configuration
  • Variomix

    Variomix
    The variomix A/H are pneumatic driven piston pump type metering and mixing system, used to handle low to high viscosity multi component media such as epoxy resins, polyurethanes or silicones. They can be unfilled, filled as well as abrasive. The system is built in different configurations.
    Industries
    These modern metering systems can be used in any industry where materials need to be applied in a high precision and repeatable way.

    Automotive
    Electrical and electronic
    Renewable energy
    Aerospace
    White goods
    and many more
    Typical Applications
    Coating
    Encapsulating
    Gluing
    Laminating
    Sealing
    Features and Benefits
    Simple operation
    Variable mixing ratio
    Variable output rate
    Continuous flow rate
    Solvent free
    Function
    Pressure vessels, mounted onto a portable chassis, are used to supply the material into the piston type metering pumps where they are proportioned at the pre-selected ratio. The pumps are driven by an air motor. The stroke of the air motor is transferred to the pumps via a lever system. The mixing ratio can be infinitely adjusted between its limits by means of the lever system. The system is controlled by a metering
    computer.

    The variomix A is fitted with a static mixing system that includes a 2K valve combined with a disposable
    static mixer. The valve contains an infinitely adjustable «snuffer» effect to avoid dripping after metering has finished. Should mixed material be allowed to cure in the mixer, it can be replaced simply and inexpensively, thus avoiding a time consuming, expensive and environmentally damaging flushing cycle.
    Technical Specifications
      variomix A variomix H
    Flow rate up to 2 l / min with A1, depending on mixing ratio and viscosity
    up to 8 l / min with A2, depending on mixing ratio and viscosity up to 8 l/min, depending on mixing ratio and viscosity
    Mixing ratio 100 : 100 to 100 : 10, by volume with A1 
    100 : 100 to 100 : 6, by volume with A2 100 : 100 to 100 : 6, by volume
    Maximum working pressure 200 bar 200 bar
    Mixing system Static mixing system 
    ? 2K valve 
    ? Disposable static mixer Static mixing system 
    ? 2K valve 
    ? Disposable static mixer
    Material supply Pressure vessels (6 to 120 l) Pressure vessels and/or drum pumps
    Viscosity range 50 to 80,000 mPa s, with pressure vessel 
    up to 1,000,000 mPa s, with drum pumps 50 to 80,000 mPa s, with pressure vessel 
    up to 1,000,000 mPa s, with drum pumps
    Material characteristics Unfilled, filled, abrasive Unfilled, filled, abrasive
    Power supply 110-480 VAC 3/PE / 50/60Hz 
    230 VAC L/N/PE / 50/60Hz 380-440 VAC 3/PE / 50/60Hz
    Maximum air inlet pressure 6 bar 6 bar
    Dimensions, L x W x H from 1,500 x 1,100 x 1,900 mm from 1,200 x 800 x 1,950 mm
    Weight from 400 kg from 450 - 800 kg
  • Silcomix

    Silcomix
    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 5,28 or 52,8 gal.
    Features and Benefits
    High energy-efficiency due to servoelectrically driven piston pumps
    Simultaneous drum drainage
    Material residues in drum < 1 %
    Processing from 5,28 or 52,8 gal 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
    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 5,28 or 52,8 gal
    Viscosity up to 1,000,000 cps (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
    SWIPSYNC
    The servo-electrical drive allows for the synchronous changeover between the piston metering pumps,
    independently of the current position of the related pump piston. 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.
    silcomix SWIPSYNC - Synchronous changeover of piston pumps "SWIPSYNC"
  • Economix

    Economix
    The economix range of systems are compact, solvent free, pneumatically driven piston pump metering and mixing systems. They are used to continuously apply low to medium viscosity multiple component materials such as poxies, polyurethanes and silicones within a mixing ratio of 100:100 to 100:16. The material can be filled as well as abrasive. The material is either supplied from pressure vessels.
    Typical Applications
    Coating
    Encapsulating
    Gluing
    Sealing
    Features and Benefits
    Compact design
    Economic solution
    Variable mixing ratio
    Variable output rate
    Continuous flow rate
    Particularly suitable when
    small quantities are required
    Solvent free
    Functions
    Pressure vessels mounted onto a portable chassis, are used to supply the material into the piston type metering pumps. The pumps are driven by a single air motor. A lever system connects pumps and drive. The pump for the A component is fixed to the lever system and shares the same stroke length as the drive motor, whereas the pump for the B component is movable along the lever system and thus has a variable stroke length which is used for the fine adjustment of the mixing ratio. The economix is fitted with a static mixing system that includes a 2K valve combined with a disposable static mixer. The valve contains an infinitely adjustable “snuffer” effect to avoid dripping after metering has finished. Should mixed material be allowed to cure in the mixer, it can be replaced simply and inexpensively, thus avoiding a time consuming, expensive and environmentally damaging flushing cycle.
    Technical Specifications
    Viscosity range
    100 - 50'000 mPa s
    Mixing ratio 1:1 to 6:1
    Flow rate
    up to 2 l/min
    Maximum working pressure 160 bar
    Maximum air inlet pressure
    6 bar
    Pressure vessels 2 x 12 bis 45 l
    Dimensions, L x W x H
    600 x 600 x 1,200 mm
    Weight approx. 130 kg
  • Ceramix

    Ceramix
    Ceramix is used to handle low to high viscosity multi component materials. They can be filled as well as abrasive. Due to its compatibility and modularity, two or more ceradis single component piston metering systems can be connected by simply using a mixing block onto the outlet of which a plastic mixer is mounted. Just a suitable material supply and metering unit is required. The material can be processed by either shot dispensing or continuous flow. Markets These modern metering systems can be used in any industry where materials need to be applied in a high precision and repeatable way. Industries such as: Automotive and automotive components Electrical and electronic Aerospace Medical and many more Applications Greasing Bonding and sealing Encapsulation Proportioning Shot or bead dispensing Product features High metering accuracy and repeatability ( ± 1 % depending on the flow rate and material) High process security through monitoring the filling level Low-wear high performance ceramics, thereby low maintenance due to long life processes highly abrasive materials Gas tight construction No valve technology, no pneumatics Only an electrical connection 230 V / 16 A required Technical Specifications Flow rate 10 to 2.000 mm³, at MR 100:100 Mixing ratio up to 100:1, depending on shot size and viscosity Mixing system Static mixing system Material supply Drum pump, material pressure vessel or cartridge Viscosity range 0,5 to 50.000 mPa s, higher on request Material characteristics unfilled, filled, abrasive Power supply 230 V / 50 Hz / 16 A Air inlet pressure 6 bar, only for material supply Dimensions 120 x 60 x 300 mm Weight approx. 7,0 kg Our products Single Component Systems Multi Component Systems Gear Metering Systems Piston Metering Systems ceramix economix silcomix variomix vectomix viscomix Other Metering Systems Mixing Systems Metering Components + Pumps We are happy to help
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