Material
Customer-specified SCHOTT ROBAX® transparent glass-ceramic
CASE STUDY · GLASS-CERAMIC PROCESSING
Customer-Specified ROBAX® Glass-Ceramic Cold Processing Case
How a customer-specified ROBAX® sheet moves through receiving, layout, cutting, edge review, handling and release. The photographs document the workshop material and parts; customer-specific dimensions and test results are not disclosed.
Case boundary and material reference
LIGHTING GLASS has cold-processed ROBAX® material specified for a customer project. SCHOTT makes ROBAX®; this case describes our fabrication review and workshop handling, not production or sale of the original material. Material identity, thickness and coating state must be confirmed for every new order.
Scope shown
Receiving, sheet layout, cutting, handling and inspection planning
Disclosure
No customer drawing, finished tolerance or test record is published
Manufacturer data are design inputs, not finished-part guarantees
SCHOTT describes near-zero mean linear expansion, α(20–700 °C) = (0 ± 0.5) × 10⁻⁶/K. Its current flat-panel range lists 4 and 5 mm and a 1,954 × 1,100 mm large-format sheet. These are manufacturer references; they do not identify the thickness or size of the parts photographed here, and they do not establish our stock.
SCHOTT ROBAX® ↗Layout and cold cutting
The approved drawing—not a nominal sheet size—sets the part outline, functional face, edge allowance and orientation. Nesting is reviewed before cutting so the sheet is supported and the downstream edge finish has sufficient allowance.
01 · Confirm
Check material identity, actual sheet thickness, drawing revision, coated face if applicable, and the accepted inspection zone.
02 · Plan
Arrange outlines and handling margins without relying on an unverified parts-per-sheet yield or a universal cutting setting.
03 · Cut
Use a supported, controlled cold-cutting route matched to the sheet and geometry; inspect the resulting edges before further processing.
Real workshop images: receiving and in-process handling
These photographs show sheet separation, markings and protected stacks. They are not evidence of a particular hole diameter, edge-chip value or certified yield.
Edge finishing and hole design
A cut edge or drilled opening can become a stress concentration. The drawing should define edge profile, visible zone, acceptable chips and inspection method. Hole feasibility depends on thickness, diameter, location, neighbouring holes and the mounting design; it is not determined by one universal rule.
Edge condition
Specify the required ground or chamfered profile and acceptance criteria on the approved drawing.
Openings
Review bore and cut-out geometry with the actual sheet, process and frame. Do not transfer an old brochure limit into a new project without checking the current product guidance.
Coatings
If a coated ROBAX® variant is specified, confirm product-specific limits, coated-face orientation and protection separately. The photographed project does not prove that a coating was processed.
Cleaning, traceability and packing
After fabrication, cleaning and handling must protect the viewing area and finished edges. Removable identification should link part, drawing revision, material and orientation without marking the functional face. Spacers and crate restraint help prevent sheet-to-sheet contact or point loading in transit. Cleaning chemistry is selected for the actual uncoated or coated variant.
Inspection before release
The inspection plan is agreed with the customer. This case does not publish measurements from an undisclosed order; the items below are the checks to define for a comparable panel.
Outline
Length, width, contour and corner geometry
Thickness
Material specification and sampled measurements
Flatness
Method, datum and acceptance limit
Edges
Finish, visible chips and crack inspection
Holes
Position and edge condition, if openings are required
Appearance
Viewing zone, scratches, stains and orientation
What to include in a processing enquiry
Send the material identification or customer-supplied sheet details, drawing revision, part outline, thickness, quantity, edge and hole requirements, coated-face orientation where relevant, mounting concept, service conditions and acceptance criteria. We can then review a feasible route and first-article inspection plan; no unverified tolerance is promised in advance.
Related pages
Engineering notes
Does this case mean LIGHTING GLASS manufactures or stocks ROBAX®?
No. ROBAX® is a SCHOTT product. The case documents cold processing of customer-specified material; availability and material procurement are not represented.
Is there one drilling rule for every panel?
No. SCHOTT documentation and project geometry must be reviewed together. Hole size and location require drawing- and installation-specific assessment.
Are the photographs proof of finished tolerances?
No. They show workshop material and handling. Any finished tolerance, test method and acceptance evidence must come from the approved project record.
Discuss your ROBAX® processing drawing
Send the confirmed material, drawing, quantity, edge and opening requirements. The existing RFQ page accepts drawing uploads and routes your enquiry to the LIGHTING GLASS team.