Technical Ceramics for Robotics and Automation, Defined by Your Part

Precision Guides And Bearings

Two moving interfaces define the problem: repeatable travel and low wear. Rails, bushings, rollers, and bearing rings need fit diameters, surface finish, load, and lubrication conditions.

End-Effector And Gripper Parts

One contact zone can damage a handled part or contaminate it. Fingers, jaws, nests, and locating pins require gripping force, contact radius, edge condition, and replacement interchangeability.

Vacuum And Wafer Handling

Two vacuum risks are particle release and unstable holding. Chucks, suction cups, arms, and support pads require flatness, port geometry, cleanliness criteria, and vacuum-temperature conditions.

Electrical Insulators And Fixtures

Three electrical concerns are isolation, heat, and positional stability. Standoffs, substrates, holders, and fixtures require dielectric needs, mounting holes, thermal exposure, and mating-material details.

Fluid-Handling Parts

Two fluid threats are corrosion and abrasive erosion. Valve seats, plungers, nozzles, and pump liners require media chemistry, pressure, flow path, sealing faces, and leakage criteria.

Protective Wear Components

One wear path can determine service interval. Liners, sleeves, shields, and scraper edges require abrasive type, impact level, thickness, attachment method, and permissible dimensional loss.

Mechanical And Thermal Choices

Alumina combines hardness, electrical insulation, and broad chemical resistance for insulators, guides, and wear faces.

Zirconia offers comparatively higher fracture toughness; silicon carbide favors stiffness, wear, heat transfer, and corrosive-duty parts.

Electrical And Machining Needs

Silicon nitride suits rolling-contact and shock-sensitive components because toughness and thermal-shock behavior matter.

Aluminum nitride provides electrically insulating thermal management, while machinable glass ceramic enables prototypes and fixtures needing conventional machining.

Material Decision Matrix

One matrix is a screening tool, not a substitute for grade-specific qualification.

Freeze Drawing-Critical Features

Two-dimensional drawings should define outside geometry, hole locations, channels, datum scheme, mating surfaces, tolerances, and finish callouts.

One revision should also state edge conditions, thread inserts, and assembly-ready features; late changes can require new tooling or machining routes.

Validate Interfaces Functionally

Functional tests should confirm metallization, bonded interfaces, seal lands, and fit with the mating hardware under actual loads and environment.

One prototype may expose stress concentration, leakage, electrical isolation, or adhesive compatibility that dimensions alone cannot predict.

Specify Identification Purpose

Laser marking should identify part number, revision, orientation, or traceability requirement rather than serve decorative branding.

Marked location, contrast, depth limits, and readable orientation should be agreed before production to protect critical surfaces.

Process Consistency

Each powder lot should have an agreed identification record, because particle distribution and additives affect pressing behavior.

Each sintering batch should be controlled against an approved process, with density or porosity acceptance defined where function requires it.

Machining And Geometry

Ground surfaces require stated dimensions, datum references, flatness, surface finish, and edge-break requirements.

Sharp internal corners and unapproved chips can concentrate stress in brittle parts; specify radii, chamfers, and allowable edge condition.

Drawing Review Questions

Before quotation, identify which dimensions govern fit, motion, sealing, insulation, or alignment.

Before release, confirm inspection method, sampling plan, material designation, revision control, lot traceability, documentation, and nonconformance disposition.

Engineering And Material Fit

1 application review should address load, temperature, electrical duty, media exposure, mating surfaces, and failure mode. Request grade-specific material data and documented assumptions.

2 process questions matter: ask whether the geometry suits pressing, casting, extrusion, injection molding, or machining after sintering.

Inspection And Change Control

3 inspection items should identify datum scheme, critical dimensions, sampling method, instruments, and report format. Request a sample inspection report and an inspection plan before approval.

4 change-control expectations should cover material source, process route, tooling, drawing revision, and notification timing.

Scale, Delivery, And Handling

5 production discussions should compare prototype quantity, repeat demand, tooling exposure, yield risk, and capacity assumptions. Ask for a realistic lead-time plan with approval gates.

6 shipment details should define protective packaging, labeling, lot traceability, and damage-report procedure. Confirm communication owners and response timing.

Hardness Is Not Enough

One property cannot select a ceramic: hardness alone can overlook toughness, insulation, thermal behavior, and wear pairing. Before quotation, ask: Which service loads, temperatures, media, and mating materials govern failure?

Review Tolerances And Finishes

Metal-style tolerances and unspecified finishes can drive avoidable grinding cost or poor fits. Before prototyping, ask: Which dimensions locate the part, and what surface roughness and datum scheme are function-critical?

Define Inspection And Assembly

A drawing without measurement methods can produce disputed acceptance, while clamp loads or misalignment can crack ceramic parts. Before release, ask: How will critical features be inspected, and what assembly stresses occur?

Control Changes And Price

Late drawing changes can invalidate tooling, process planning, and inspection preparation; lowest piece price can shift risk into rejects or delays. Before production, ask: Is the revision frozen, and what total acceptance requirements are included?

Define Service Conditions

First, document load, motion, temperature, media exposure, voltage, vacuum level, and expected cycles. The OEM should identify failure consequences and mating materials.

Freeze Drawing And Materials

Second, submit the current drawing revision with datum scheme, critical-to-quality dimensions, surface requirements, and quantity forecast. Engineering and quality should approve the material shortlist and tolerances together.

Review, Validate, Release

Third, request a manufacturability review, then test prototypes against an agreed inspection plan. Purchasing should release production only after engineering, quality, and program owners accept samples, documentation, delivery requirements, and change control.