Microdrop dispenser heads – except for the Nanojet – use the same piezo-driven technology as an inkjet printer for contactless dispensing, generating a micro-fine droplet of liquid at the nozzle tip which departs from the dispenser head at high speed (approximately 2 m/s). Only highly inert materials such as glass, PTFE (polytetrafluorethylene), and PEEK (polyetheretherketone) come into direct contact with the fluid.
Not only is it possible to dispense fluids with a room temperature viscosity up to 20 mPas, but materials such as waxes with a viscosity up to 10,000 mPas are dispensable if their viscosity is reduced by heating to 20 mPas or lower, and some models of dispenser head provide a heating function to accomplish this.
Microdrop dispenser heads have no mechanical moving parts and are therefore free of wear and maintenance.
The microdrop Dispenser Heads MD-K-Series can be driven by the microdrop Driver electronics (MD-E-Series) or in combination with the Autodrop system (AD-E-Series).