 Tom Muccino Nordson EFD Business Development Manager Visit Website |
Tom Muccino is a Business Development Manager for Nordson EFD. He works closely with manufacturers’ engineering and R&D departments to assist in developing dispensing processes for their next-generation products. In his 21 years at Nordson EFD, Muccino has served as National Sales Manager, Product Line Manager and Global Business Development Manager. He has provided application assistance and conducted training seminars at Fortune 500 companies, and delivered numerous presentations on proper equipment selection and fluid dispensing techniques.
Nordson EFD manufactures a range of precision benchtop dispensers, automated dispense valve systems and dispensing components (tips and syringes) for applying accurate, consistent amounts of the adhesives, solvents, silicones and other assembly fluids used in critical medical device assemblies. The company is headquartered in East Providence, Rhode Island, USA.
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Fluid Dispensing Q&A
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We are using air-powered dispensers to apply a medium-viscosity material using 10-cc syringes. As the amount of material in the syringe decreases, we have to periodically increase air pressure to keep the shot size consistent. Is there a way around this issue?Answered June 24th, 2010 by Expert:As the volume of fluid in the syringe decreases, the volume of air increases, so that it takes longer to build up the pressure needed to push the desired amount of fluid through the dispensing needle. Shot size can be easily maintained by:
- Increasing either the air pressure or the length of time air pressure is applied to the fluid. Most companies will choose to adjust air pressure and keep process time the same.
- Using a smaller syringe (5 or 3 cc) and filling it only halfway to minimise the change in air volume.
A third option is the recently introduced Optimeter. Used in place of the standard adapter that links the syringe to the dispenser, the Optimeter is a mechanical device that automatically adjusts air flow as the volume of fluid in the syringe decreases, so that shot size stays the same.