Micro-dispensing devices are used to eject droplets for a non-contact preparation of a wide range of liquids. Depending on the required deposition volume, M2-Automation offers piezo and solenoid driven micro-dispenser devices that best suit your application. Both types of micro-dispensing devices and all necessary components for their operation can be integrated into instrumentONE and instrumentTWO. For wide volume range applications we are offering our dual-jet technology – both piezo and solenoid micro-dispenser technology are easily interchangeable.
Piezo element driven micro-dispensing devices (PDMD) have a typical single droplet ejection volume from 20pl to 1nl. An electrical triggered shock wave results in the emission of a short jet of liquid from the tip of the glass capillary. Only a few µs after leaving the nozzle tip a single droplet is formed (droplet cuts off the jet of liquid) and leaves the capillary in a axial-symmetric line. Multiple electrical triggers can be applied to achieve a higher volume per target spot. The frequency of the droplet ejections depends on the liquid viscosity an can go up to 2000Hz.
Droplet in droplet
Since October 2009 we over our newest generation of piezo element driven micro-dispensing devices developed in co-operation with Microdrop Technologies GmbH a leading company in the field of picolitre volume dispensing devices. This new generation of piezo element driven micro-dispensing device is based on years of experience and material selection - extremely easy to handle and robust.
Solenoid valve driven micro-dispensing devices (SDMD) have a dispensing volume range from 20nl to µl and even beyond. The width of an electrical pulse and the pneumatic pressure determines the jet of liquid ejected out of the tip. There is basically no limitation of the maximum volume. Multiple electrical triggers as well as a long valve opening time can be applied to achieve high volumes if required.
M2-Automation is offering solenoid element driven dispensing devices made by LEE Hydraulische Miniaturkomponenten.
