Alumina Ceramic Rotary Indexing Table Plate & Dial Plate for Automation Systems

Alumina Ceramic Rotary Indexing Table Applications

• Automotive and Electrical Assembly Lines

  Key advantages: stable indexing under local heating; insulated test stations (interrupts stray currents / leakage paths); lower wear at high cycle counts.

  How it helps: replacing a worn metal indexing plate with an alumina ceramic plate reduces surface wear and heat-related distortion, which helps hold assembly tolerance and reduce misindexing over long runs. Actual results depend on line design, load and fixturing.

• Laser Marking and Laser Processing Cells

  Key advantages: reduced thermal drift under laser heating; clean, non-contaminating surface; integrates with mechanical or servo rotary cells.

  How it helps: controlled flatness and low thermal expansion reduce stack-up of height and position variation, which helps keep mark quality consistent across many indexes. Results depend on the cell design and marking process.

• Precision Testing, Inspection and Metrology

  Key advantages: controlled flatness for measurement paths; electrically inert platform for sensitive probing; dimensional stability across temperature.
  How it helps: a ceramic plate with tight flatness/runout maintains a more consistent reference geometry, which helps reduce false rejects and re-qualification frequency. Actual accuracy depends on the metrology system and drawing tolerances.

Alumina Ceramic Dial Plate Usage Instructions

• Installation

  1. Clean the mounting surface and confirm that it is flat and free from burrs.
  2. Align the mounting holes and locating features according to the drawing.
  3. Tighten the fasteners evenly to avoid concentrated stress on the ceramic plate.

• Handling

  1. Support the plate evenly and avoid point loading or edge impact.
  2. Use two people or suitable lifting equipment when handling large plates.
  3. Do not install a plate with visible chips or structural cracks.

• Cleaning

  Clean the surface with a lint-free cloth and neutral detergent. Avoid metal scrapers or tools that may scratch the surface or chip the edges.

• Storage

  Store the plate horizontally on a flat, padded surface in a clean, dry environment. Keep the edges protected from impact.

FAQ – Alumina Ceramic Rotary Indexing Table

1. Q: What is an alumina ceramic rotary indexing table plate used for?
   A: It is the ceramic table face/dial plate that mounts on a rotary indexer to move parts between stations, giving an insulated, non-magnetic and dimensionally stable working surface. We supply the ceramic plate, not the indexing machine.
2. Q: How is it different from a metal indexing plate?
   A: Alumina offers higher electrical insulation, non-magnetic behaviour, better chemical and wear resistance and dimensional stability, which helps hold indexing accuracy where a metal plate wears, distorts or conducts.
3. Q: What temperature can it handle?
   A: Dense alumina plates are typically used to about 1,450°C for 96% and higher for purer grades; the allowable temperature is grade- and system-dependent and is confirmed per application—it is not a whole-machine rating.
4. Q: Is it compatible with cam indexers and servo rotary tables?
   A: Yes—the plate is machined with the central bore, bolt pattern and keyways to match your cam indexer or servo rotary table. We build to your interface drawing.
5. Q: Can it support heavy fixtures and parts?
   A: Alumina has high hardness and stiffness, but the allowable payload per station must be calculated from the plate dimensions, support conditions and your indexer’s load rating.
6. Q: Is it suitable for cleanroom or medical environments?
   A: The surface is non-rusting and easy to clean, which suits clean processes; cleanroom or medical use also depends on system-level design and regulatory requirements outside the plate.
7. Q: Can it be used with vacuum fixtures or suction cups?
   A: Yes—the plate can be machined with vacuum channels and ports; low porosity supports vacuum clamping where the design includes suitable seals and grooves.
8. Q: Is this a complete rotary indexing table?
   A: No. We supply the alumina ceramic table face/dial plate that mounts on your indexer. We do not sell the indexer drive or quote indexing accuracy, torque or whole-machine performance.
9. Q: What is the difference between a rotary table and indexing?
   A: A rotary table provides continuous or positioned rotation; indexing means moving in fixed angular steps between stations. Our ceramic plate is the tooling face for either—the motion is provided by your machine.
10. Q: Which alumina grade should I choose—96%, 99%, 99.5% or 99.7%?
    A: 96% suits general insulating and wear stations; 99–99.5% suits precision and high-cleanliness work; 99.7% suits semiconductor-adjacent structural parts. We select the grade from your temperature, environment, cleanliness, load and precision requirements.
11. Q: Can you guarantee flatness and runout?
    A: We work to the flatness, parallelism and runout tolerances on your drawing and confirm feasibility through engineering review. We do not publish a fixed guaranteed value without your drawing and acceptance method.

What to send for a fast quote

For the fastest, most accurate quote, send:

• A drawing or a photo of your old plate — plus OD / ID/thickness
• Bolt circle, centre bore, dowel/locating holes, keyway
• Vacuum channels/ports, slots, nesting pockets, vision openings
• Flatness/parallelism/runout / surface-finish tolerances
• Number of index stations and angular divisions
• Load per station, temperature, and electrical/magnetic / cleanroom environment
• Quantity, and whether this replaces a metal or OEM plate

The more you share, the faster our engineers can confirm what we can make.