Dispenser Heads

A varied range of heads and pipettes for dispensing a wide selection of fluids

Microdrop Dispenser Heads

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).

  • Viscosity range: 0.4-20 mPas depending on fluid used
  • Standard inner nozzle diameter: 30μm, 50μm, 70μm
  • Droplet volume: 20-180 pl depending on fluid used
  • Lifespan: >100 billion cycles

  • Viscosity range: 0.4-100 mPas depending on fluid used
  • Heating range of nozzle tip: 25-100°C depending on fluid used
  • Standard inner nozzle diameter: 30μm, 50μm, 70μm
  • Droplet volume: 20-180 pl depending on fluid used
  • Lifespan: >100 billion cycles
  • Option for heating of hose and storage bin (with MD-H-712 / MD-H-714)

  • Viscosity range: 0.4-10,000 mPas depending on fluid used
  • Standard inner nozzle diameter: 70μm, 100μm
  • Heating range of nozzle tip: 25-80°C depending on fluid used
  • Heating range of hose and storage bin: 25-100°C
  • Droplet volume: 180-380 pl depending on fluid used
  • Lifespan: >100 billion cycles

  • Viscosity range: 0.4-10,000 mPas depending on fluid used
  • Standard inner nozzle diameter: 70μm, 100μm
  • Heating range of nozzle tip: 25-100°C depending on fluid used
  • Heating range of hose and storage bin: 25-160°C
  • Droplet volume: 180-380 pl depending on fluid used
  • Lifespan: >100 billion cycles
  • Driver electronics: Autodrop system

  • Viscosity range: 0.4-20 mPas depending on fluid used
  • Standard inner nozzle diameter: 30μm, 50μm, 70μm
  • Droplet volume: 20-180pl
  • Storage volume: approx. 37μl
  • Variation of dispensed volume: <1%
  • Dead volume: approx. 14μl
  • Standard drop rate: 1-2,000Hz depending on fluid used
  • Fast liquid change
  • Transparent body makes it easy to read the filling level at any time

  • Viscosity range: 0.4-20 mPas depending on fluid used
  • Standard inner nozzle diameter: 30μm, 50μm, 70μm
  • Droplet volume: 20-180pl
  • Storage volume: approx. 25μl
  • Variation of dispensed volume: <1%
  • Dead volume: approx. 12μl
  • Standard drop rate: 1-2,000Hz depending on fluid used
  • Fast liquid change

  • Suitable for organic fluids
  • High resistance against aggressive fluids
  • Permissible liquid viscosity: 0.4-20mPas depending on fluid used
  • Nozzle diameter: 50-500µm depending on fluid used
  • Permissible particle size: <5µm
  • Dispensing volume: 300nl depending on fluid used
  • Average speed of emission: approx. 10m/s
  • Maximum repetition frequency: 16 Hz
  • Minimum opening time: 10 ms
  • Maximum opening time at trigger mode: 1.98 s
  • Maximum working pressure: 3,500hPa depending on fluid used
 
 

  • Suitable for watery fluids
  • Permissible liquid viscosity: 0.4-50 mPas depending on fluid used
  • Nozzle diameter: 50-500µm depending on fluid used
  • Permissible particle size: <5µm
  • Dispensing volume: 50nl depending on fluid used
  • Average speed of emission: approx. 2m/s
  • Maximum repetition frequency: 100 Hz
  • Minimum opening time: 3 ms
  • Maximum opening time at trigger mode: 1.98 s
  • Maximum working pressure: 700 / 3,500hPa depending on fluid used

  • Viscosity range of up to 2,000 mPas, including all aqueous media, organic solvents, weak acids and alkaline solutions
  • Frequency from single pulse to 450Hz
  • Valve closed in power-off mode (no dripping or uncontrolled pollution)
  • Very long lifespan
  • Easily exchangeable nozzles for various applications
  • Very good chemical stability
  • Intelligent upgraded processor with advanced timing and automatically identification
  • Dispensing volume from 8 nl up to 10µl
  • Viscosity of dispensed fluids: 1-2,000 mPas
  • Dispensing accuracy: <1%

TPW

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