AD-K-801 High-temperature Microdrop Dispenser Heads
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ADVANTAGES Contactless dispensing Օ Single droplet volumes from 30 pl to 380 pl * Variation of dispensed volume approx. 1% * Օ Droplet rate 1 ... 2000 Hz (provided by standard driver electronics) * Droplet velocity approx. 2 m/s * Օ Only highly inert materials have contact with the fluid - glass and PTFE (Polytetrafluorethylene) It is possible to dispense fluids with a room temperature viscosity up to 20 mPas * Օ Materials, such as waxes, with a viscosity up to 10000 mPas are dispensable if their viscosity is reduced by heating to 20 mPas or lower. Technology Microdrop Dispenser Heads are based on piezo-driven inkjet printing technology. The integrated piezo actuator induces a shock-wave into the fluid contained in the head, which causes a droplet to be emitted from the nozzle. Criteria to find the best Microdrop Dispenser Head What kind of fluid is to be dispensed (Viscosity, concentration of additives etc.)? Օ The High Temperature Dispenser Head AD-K-801 can only be driven by the Autodrop System. What kind of solvent is used? Օ Are there particles in the liquid: Size and concentration of particles? The inner nozzle diameter of the Microdrop Dispenser Head strongly influences the droplet size. Օ Desired diameter of the droplets The relation between inner nozzle diameter, droplet size and droplet volume is: Օ Desired droplet emission frequency Dispensing volume: a) single droplet b) throughput of droplets per second inner nozzle diameterdroplet size in flight *droplet volume *30 Վm35 ܎m20 pl 50 ܎m55 ܎m90 pl 70 ܎m70 ܎m180 pl100 ܎m90 ܎m380 pl ܕ How many dispenser heads are necessary for the application? Is there an interest to upgrade the system to more than one dispenser head later? Օ Is an xyz-positioning system required?Need help? Please send us a short description of the application and a datasheet of the fluid. > * depending on the fluid used The spot size on the substrate depends on the wetting behaviour between the fluid and the surface material. Features Օ The Microdrop Dispenser Heads MD-K-... can be driven by the Microdrop Driver electronics (MD-E-201-H) or in combination with the Autodrop system (AD-E-...). microdrop Technologies GmbH are specialized in cus-tomized solutions. Please ask for application-optimized dispenser heads! >

Microdrop Dispenser Head, non heated Viscosity range: 0.4 ... 20 mPas *Standard inner nozzle diameter: 30 μm, 50 μm, 70 μm Droplet volume: 20 ... 180 pl * Life time: > 100 billion cycles Microdrop Dispenser Head, nozzle tip heated Viscosity range: 0.4 ... 100 mPas * Heating range of the nozzle tip: 25 ... 100 C * Standard inner nozzle diameter: 50 Ўm, 70 ܎m, 100 ܎m Droplet volume: 90 ... 380 pl * Life time: > 100 billion cycles Microdrop Dispenser Head, nozzle tip, hose and storage bin heated up to 100ܰC Viscosity range: 0.4 ... 10000 mPas *Heating range of the nozzle tip: 25 ... 80 C...