Bench-Top Needle Internal Diameter Measurement System


  • Measure Needle Internal Diameter Non-Destructively
  • Second source supplier validation
  • Root Cause Investigation
  • Product Complaint Investigations


  • 110-240VAC, Single Phase, 50/60Hz
  • Power Rating: 200W (maximum)
  • Formulation Development
  • Machine Dimensions: 60cm X 30cm X 53cm
  • Pneumatic Pressure: 90 psi
  • Meets CE requirements

The internal diameter of a needle is the largest contributor of forces required to complete injection. The “HYDRO” system was developed to characterize the smallest internal diameter of needle non destructively with a high degree of precision and accuracy. The principle for the measurement is Poiseuille Flow.

A Hydro system is used in order to calculate the orifice size within a syringe needle. The system measures flow rate, temperature, and pressure in order to calculate the hydrodynamic diameter of the syringe needle.