What is a dispensing tip?

A dispensing tip is a narrow metal or plastic tip used in precision dispensing systems to make consistent deposits of fluid used in assembly processes. Dispensing tips, also called dispense tips or dispensing needles, most commonly attach to the end of a syringe barrel reservoir (see Figure 1). [Note: dispensing tips are also used with automated dispensing or valve systems like the Nordson EFD xQR41 valves.]

Figure 1: Dispensing tips screw onto the ends of syringe barrel or dispensing valves to dispense well-controlled deposits of assembly fluids.

General-purpose dispensing tips consist of a plastic hub attached to a metal cannula sized to produce the desired fluid deposit (see Figure 2).

Figure 2: General-purpose tips like these Optimum dispense tips from Nordson EFD work very well for many fluid viscosities and process parameters.

As the name implies, these tips are a good starting point for most production applications. That said, certain fluids have properties that can degrade dispensing performance. They include:

• Thin fluids
• Thick pastes
• Cyanoacrylates

If your manufacturing process uses one of these types of fluids, you need to use a specialty dispensing tip designed to address the issues the fluid presents. Visit the links above to discover the optimal tip to choose for each type of fluid.

And as always, if you need more assistance, reach out to the Nordson EFD team at [email protected].