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Volumetric Piston Dispenser

Volumetric piston dispensers are used for processing 1K media, especially when short cycle times are required. The material is discharged in shot form at a freely configurable discharge rate or without interruption using a double piston system, e.g. in bead form.
Different sizes are available depending on the requirements of the application. Combining two piston metering units together also enables 2K applications with this system. The piston dispenser is powered by a servo motor, with a spindle converting the rotational motion into linear motion, thus ensuring precise piston feed.
Thanks to various design, there is practically no need for any maintenance work, which reduces service intervals and increases the durability of the products.

Key features

- Modular design enables a wide range of applications, variable mixing ratio and variable discharge quantity
- Maximum precision thanks to metering and mixing at point of application
- Metering accuracy < ±1%
- Multiple shots with one piston volume enable short cycle times- High process reliability thanks to 
  • Dead space optimized design
  • Pressure monitoring in metering chamber
- Reduced maintenance work thanks to
  • Specially guided metering piston 
  • Backlash-compensating coupling between drive and metering piston
  • Hermetic sealing of piston with sealing medium
If your required configuration is not listed below, please make a request at productportal@dopag.com.