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CeramTec Piezoceramics Design

Shapes and Mechanical Tolerances

In addition to the shapes shown, custom shapes are also available. Parts can be made to the size ranges shown, but not in every combination of thickness and lateral dimensions. A separate list of standard sizes of parts available can be obtained on request.

Standard Mechanical Tolerances

Tolerances on machined dimensions apply to most components. For large size parts, confirmation of the tolerances achievable will need to be agreed prior to placing an order. Components can be produced to tighter tolerances (e.g. Concentricity within 0.13mm (0.005”) TIR and surface finish (Ra) within 1.6μm (62μin)). 

Care should be taken not to over-specify a tolerance as this can significantly increase costs. Discover more

Piezoceramics in sensors
Disc
FromTo
Diameter3 mm (0.12“)255 mm (10“)
Thickness0.2 mm (0.008“)25 mm (1”)

Discover more information, applications & features:  Piezoelectric Discs

Plate (square & rectangle)
FromTo
Length1 mm (0.04”)165 mm (6.5”)
Width1 mm (0.04“)165 mm (6.5”)
Thickness0.2 mm (0.008“)35 mm (1.4”)

Discover more information, applications & features:  Piezoelectric Plates

Ring
FromTo
Outside diameter3 mm (0.12“)150 mm (5.9”)
Inner diameter0.5 mm (0.02”)140 mm (5.5”)
Thickness0.2 mm (0.008”)25 mm (1”)

Discover more information, applications & features:  Piezoelectric Rings

Tube
FromTo
Outside diameter1 mm (0.04”)150 mm (5.9”)
Inner diameter0.5 mm (0.02”)140 mm (5.5”)
Length1 mm (0.04”)150 mm (5.9”)

Discover more information, applications & features:  Piezoelectric Tubes

Hemisphere
FromTo
Outside diameter6 mm (0.24”)203.2 mm (8“)
Wall thickness1 mm (0.04”)10 mm (0.39”)

Discover more information, applications & features:  Piezoelectric Hemispheres

Focal Bowl
FromTo
Diameter6 mm (0.24”)203.2 mm (8“)
Thickness1 mm (0.04”)10 mm (0.39”)
Tapered Stave
Graphical illustration of a piezoelectric cylinder rod
Barrel Stave
Piezoelectric tube segment

 

 

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Standard Mechanical Tolerances

Outside diameter±0.15 mm
Inner diameter±0.15 mm
Length & width±0.15 mm
Thickness±0.05 mm
Squareness (edge to face)Within 0.15°
Concentricity0.2 mm TIR
Surface flatness (lapped parts)12 μm (0.012 mm)
Surface flatness (large sliced parts)15 μm (0.015 mm)
Parallelism (lapped parts)12 μm (0.012 mm)
Parallelism (large sliced parts)60 μm (0.06 mm)
Surface finish (Ra)3 μm (0.003 mm)

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