eldodis: Metering system for 1K adhesives and sealants
Continuous metering ensures high process reliability
DOPAG developed the eldodis gear metering system specially for the processing of medium to high-viscosity single-component materials. The material is input via a feed pump, a material pressure tank or by means of a cartridge-extracting device. A material pressure regulator ensures constant input pressure. A shut-off valve can optionally be installed in front of this to provide additional protection for the gear metering pump. The metering pump, powered by a gear motor, conveys the material to a dispensing valve where continuous material discharge takes place via a nozzle or cannula.
The conveying capacity of the system is largely determined by the size of the gear metering pump and the pump speed. The latter can be controlled by means of a frequency converter built into the control unit. A volume counter can be installed downstream of the gear metering pump to check or also control the metered quantity in a closed loop and to increase process reliability. All components are connected to a metering control unit. This also enables integration into partially or fully automated production or assembly processes through all standard interfaces.
Technical specifications
| Material discharge | from 1 ml/min, depending on viscosity |
|---|---|
| Operating pressure | up to 200 bar, depending on material and discharge rate |
| Material supply | Material pressure tanks 4, 12, 24, 45, 60 or 90 L, larger available on request and/or barrel pumps |
| Viscosity range | 50 to 80,000 mPa s, with material pressure tank max. 150,000 mPa s, with barrel pumps* |
| Material properties | Unfilled, filled, abrasive |
| Operating voltage | 400/230 VAC 3/N/PE / 50/60 Hz |
| Compressed air supply | 6 bar max. |
| Dimensions, W x H x D | modular structure, so no specific machine dimensions |
| Weight | modular structure, so no specific machine weight |
| * higher available on request, depending on rheological properties of material |