Reverse-engineering an old ceramic component requires separating original geometry from wear, scale, cracks and distortion. Measure multiple samples, inspect mating equipment, identify the material and create a controlled replacement drawing before production.

Custom ceramic parts usually need precision finishing only on functional surfaces such as seals, fits, sliding faces or wear interfaces. Unnecessary polishing of noncritical surfaces increases machining cost without improving process performance.

For custom ceramic tubes and sleeves, specify OD, ID, length, straightness, roundness, concentricity and critical end-face requirements separately. Tight tolerances should be reserved for dimensions that truly control fit, sealing or flow.

Bolt holes create stress concentration in ceramic. Provide suitable edge distance, assembly clearance and broad load distribution, and avoid excessive preload or metal interference around the hole.

Successful ceramic sealing requires controlled flatness, compatible gasket compliance, distributed bolt load and careful tightening. Avoid applying generic metal-flange torque practices directly to brittle ceramic components.