# CERAMIC CNC > CERAMIC CNC is the precision ceramic machining RFQ website operated by Suzhou Como Precision Materials Co., Ltd. It provides engineering decision guides and drawing-review support for custom technical ceramic parts. Website: https://ceramiccnc.com/. Engineering and procurement contact: info@szcomo.com. The service focus is ceramic CNC machining, diamond grinding, lapping, polishing, and inspection planning. Materials discussed include alumina (Al2O3), zirconia (ZrO2), silicon nitride (Si3N4), silicon carbide (SiC), aluminum nitride (AlN), boron nitride (BN), MACOR, and fused silica. Suitability depends on the selected grade, blank state, geometry, functional surfaces, and acceptance requirements. The linked pages distinguish general engineering guidance from project-specific commitments. Published ranges are not guaranteed manufacturing limits. A process description is not evidence that the process is performed in-house; the proposed manufacturing route, externally performed steps, inspection scope, and qualification documents require project confirmation. Illustrations and example scenarios are not customer delivery records or test results. Material datasheets do not establish finished-part or assembly performance. For an RFQ, email the current 2D drawing and STEP/CAD files, drawing revision, material or grade target, quantity, target timing, critical datums and surfaces, tolerances, edge criteria, inspection requirements, and cleaning or packaging needs. Feasibility, pricing, lead time, and acceptance commitments follow drawing review. Agree handling arrangements before sending restricted information. ## Company and project review - [About CERAMIC CNC](https://ceramiccnc.com/about/): Operator identity, engineering content method, evidence boundaries, and supplier qualification questions. - [Machining and inspection capabilities](https://ceramiccnc.com/capabilities/#scope-and-evidence): Process options and the project evidence needed to accept a finished part. - [Custom ceramic part families](https://ceramiccnc.com/products/): Part geometries and functional features for drawing review, not an off-the-shelf stock catalog. - [Prepare and send an RFQ](https://ceramiccnc.com/rfq/): Current submission options and the inputs needed for a reviewable inquiry. ## Material, design, and acceptance decisions - [Ceramic materials](https://ceramiccnc.com/materials/): Material families and application-dependent selection considerations. - [Material selection for ceramic CNC machining](https://ceramiccnc.com/posts/materials-grade-selection/ceramic-material-selection-cnc-machining/): Grade selection, datasheet conditions, and the difference between material screening and part acceptance. - [Ceramic DFM design rules](https://ceramiccnc.com/posts/design-rules-dfm/ceramic-dfm-design-rules/): Tool access, fragile features, datums, and manufacturability tradeoffs. - [Green machining versus hard machining](https://ceramiccnc.com/posts/process-routes-control/green-machining-vs-hard-machining/): Blank state, sintering effects, and finishing-route decisions. - [Tolerance review by feature and process](https://ceramiccnc.com/posts/tolerances-gdt/ceramic-tolerance-capability-map-by-feature-process/): Feature-specific tolerance discussions, functional datums, and inspection conditions. - [Surface finish and subsurface damage](https://ceramiccnc.com/posts/surface-finish-functional/ceramic-ssd-surface-finish-specify-control-price/): Why roughness alone does not establish surface integrity or functional performance. - [Custom ceramic RFQ checklist](https://ceramiccnc.com/posts/rfq-preparation/custom-ceramic-cnc-machining-rfq-checklist/): Drawing inputs, sample qualification, repeat-batch evidence, and unresolved requirements to clarify before quotation. ## Application review paths - [Semiconductor ceramic components](https://ceramiccnc.com/applications/semiconductor-ceramic-components/): Process-chamber, handling, cleanliness, and thermal requirements. - [Electrical and thermal ceramic components](https://ceramiccnc.com/applications/electrical-thermal-ceramic-components/): Insulation and thermal-interface decisions that require grade and operating-condition review. - [Wear and fluid-control ceramic components](https://ceramiccnc.com/applications/wear-fluid-control-ceramic-components/): Contact surfaces, media exposure, sealing, and wear-related acceptance questions. - [Automation and vacuum ceramic components](https://ceramiccnc.com/applications/automation-vacuum-ceramic-components/): Fixtures, locating features, vacuum interfaces, and assembly-dependent requirements. ## Critical-feature RFQ guides - [Ceramic micro-holes](https://ceramiccnc.com/posts/micro-hole-machining/ceramic-micro-hole-machining-rfq/): Hole geometry, entry and exit edges, inspection access, and quote inputs. - [Lapped ceramic seal faces](https://ceramiccnc.com/posts/lapped-seal-faces/ceramic-lapped-seal-faces-rfq/): Flatness, finish, mating surfaces, and separate part-level and assembly-level acceptance. - [Thin-wall sleeves and concentric bores](https://ceramiccnc.com/posts/thin-wall-sleeves/ceramic-thin-wall-sleeve-bore-concentricity-rfq/): Wall risk, datum selection, bore measurement, and handling requirements. - [Ceramic vacuum-chuck flatness](https://ceramiccnc.com/posts/vacuum-chucks/ceramic-vacuum-chuck-flatness-rfq/): Free-state versus mounted measurement, support conditions, and functional qualification boundaries. ## Optional - [Engineering guide index](https://ceramiccnc.com/category/engineering-guide/): The broader collection of existing material, process, application, and procurement guides. - [Frequently asked questions](https://ceramiccnc.com/faq/): General questions before a drawing-specific review.