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Machinable Glass Ceramic Top Insulation Plate Central Cutout Slot Windows Ceramic Cover Plate Replacement OEM Parts

A square insulation plate that caps a heated or energised assembly: large central cut-out for process access, rectangular slot windows for routing, and a ring of mounting holes around the perimeter — all cut from one glass ceramic plate with no firing and no distortion.
Availability:
Quantity:
  • 06A08

  • HaoRui

  • 06A08

What this plate does

The top insulation plate closes off a process chamber or heated module. It blocks heat and voltage from reaching the cover above, while its cut-outs and slot windows leave the process view, gas routes and wiring clears exactly where the tool needs them.

Plates like this are consumed parts in many tools — replaced on maintenance cycles. We produce them two ways: as exact replacements matched to your sample or part number, and as OEM production for equipment builders who need repeatable batches against a frozen drawing.

Because machinable glass ceramic is machined in its final state, a replacement plate matches the original geometry without mould work: send the used part or the drawing, and the first article is compared against your critical dimensions before the batch runs.

At a glance

  • Form: square plate with central cut-out and slot windows

  • Material: machinable glass ceramic (Macor-type equivalent)

  • Function: top-cover heat and electrical barrier

  • Two supply modes: replacement parts & OEM batch production

  • First-article inspection against critical dimensions

  • Documentation: material and dimensional reports on request

Why this design works

Three things the plate gives you

01

Open where needed, sealed where not

Central cut-outs, rectangular windows and small clearance holes are placed exactly as the tool requires — the rest of the plate stays solid and continuous as the insulation barrier.

02

Replacement without a mould

Obsolete or maintenance-cycle plates are reproduced from a sample or legacy drawing. No tooling investment, and a first article is approved before batch production starts.

03

Batch-to-batch repeatability

OEM batches are machined from the same blank stock and fixturing against a frozen drawing, so the plate fitted at the next maintenance cycle behaves like the one it replaces.

Specifications

Reference values for machinable glass ceramic. Actual values depend on grade and test method — confirm against the datasheet for your order.
MaterialMachinable glass ceramic (Macor-type equivalent)
Density≈ 2.5 g/cm³
Continuous service temperatureup to ≈ 800 °C, depending on environment
Thermal conductivity≈ 1.5 W/mK, where applicable
Plate sizesquare, rectangular or custom outline, machined to drawing
Cut-outscentral openings, slot windows, notches, chamfers
Tolerancesdown to ±0.01 mm, depending on geometry and size
Thicknessper drawing; stiffness reviewed for large plates with big cut-outs
Minimum order1 pc; replacement singles to OEM batch production
Lead timetypically 7–15 working days after drawing approval

Accepted files: STEP, STP, DWG, DXF, PDF with dimensions. For replacements, a used part plus key dimensions is enough to start. Quotes normally within one working day.

Typical applications

  • Semiconductor process tools — top covers over heated chambers

  • Deposition and etch equipment — insulating barrier plates

  • Test systems — cover plates with instrument access windows

  • Laser systems — isolation covers around hot assemblies

Custom options

  • Cut-out geometry: circles, rectangles, custom windows

  • Mounting: hole pattern, counterbores, edge notches

  • Thickness: single or stepped sections

  • Supply mode: one-off replacements or scheduled batches

  • Marking: laser part numbers for maintenance tracking

Send your drawing for a quote

STEP, DWG, DXF, PDF — or send the used part with key dimensions. We reply within one working day with price, lead time and manufacturability notes.

Or email sales@heroceramic.com

 Request a Quote

We use your drawing only to quote this part. No mailing list.


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Founded in June 2006, Shenzhen Haorui IndustriaI Technology Co.,Ltd. is a professional enterprise engaged in R&D, manufacturing and sales of non-standard industrial ceramics, hard alloys (tungsten steel) and various metal and non-metal precision machinery parts.

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