Dimensional Range
- Outside Diameter from 2mm (0.08”) to 150mm (5.9”)
- Inside Diameter from 1mm (0.04”) to 140mm (5.5”)
- Thickness from 0.15mm (0.006”) to 25mm (1”)
Custom sizes dimensions outside of the above may be possible – please consult for further information.
Standard Mechanical Tolerances
- Outside Diameter ± 0.150mm
- Inside Diameter ± 0.150mm
- Thickness ± 0.05mm
- Flatness 0.002**/0.012mm MAX (** lapped silver or sputtered)
- Parallelism 0.007**/0.012mm MAX (** lapped silver or sputtered)
- Concentricity 0.2mm
Tighter mechanical tolerances are achievable but are dependent on the geometry.
Metallisation Type
- Silver fired thick film standard - Silver fired thick film flat lapped
- Electroless nickel - Gold flash
- Tin - Evaporated Gold, Nickel and others available on request
Typical Impedance Responce Trace (Radial Resonance)
The above is a typical impedance trace measured on a dedicated analyser and depicting the resonance and anti-resonance points associated with the ring shaped component. This data allows the calculation of piezoelectric activity and other important characteristics required for the application.
