Core capability
R-Corner Grinding in the Same Pass
The corner is ground while the panel is still on the machine, on the same datum as the edge. No second operation, no outside supplier.
Why R-corners are not optional
Shower doors need radius corners for hinges and safe edges. Furniture glass needs them on exposed corners. Appliance glass needs them for handling. Mirrors need them for the frame.
The problem is never the shape. The problem is how you produce it.
Conventional approach vs. one pass
| Conventional | JINBO | |
|---|---|---|
| Setup | Second machine or outside supplier | Same machine, same pass |
| Handling | Re-load, re-align, re-polish | None |
| Breakage risk | Re-handling glass that is already finished | No re-handling; the panel stays on the line |
| Consistency | Varies between batches | Same radius, panel after panel |
| Cost | Per-piece outsourcing fee, every month | Included in the line |
The comparison is per production day, not per machine.
R-corner capability
| Parameter | Range |
|---|---|
| R radius | R3–R8 |
| Glass thickness range | 3–25 mm |
| Panel range | Rectangular glass, stone slabs and similar panels |
| Maximum processing size | Up to 1,000 × 12,000 mm |
| Parallel error | ±0.2 mm |
| Diagonal error | ±0.5 mm |
| Chamfer width error | ±0.2 mm |
| Line speed | Up to 25 m/min |
| Grinding wheel options | 24–32 wheels |
The figures above are from the current BYAA BUT Series specification. Final processing range is confirmed against the panel drawing and production layout.
Where it is used
Shower glass
Hinge cut-outs and rounded safety corners on tempered panels.
Furniture glass
Exposed tabletop, shelf and door corners that people touch.
Appliance glass
Cooktop and oven door panels with rounded handling corners.
Mirrors
Rounded corner profiles for framed and frameless mirrors.
Watch it run
Fifteen seconds is enough to see the difference. The panel enters with square corners and leaves with a radius at line speed, without stopping.
Questions engineers actually ask
Can the R-corner be added to an existing line?
The R-corner function is offered as part of the BYAA BUT Series configuration. Existing-line retrofits require a review of the machine model and layout.
How does the radius stay consistent across a shift?
The current specification targets parallel error of ±0.2 mm, diagonal error of ±0.5 mm and chamfer width error of ±0.2 mm. Final acceptance criteria are confirmed with the project.
What happens to chipping at the corner?
The optional R3–R8 corner-cutting function can include a polishing effect. Wheel sequence and sample acceptance are confirmed during technical review.
What panel materials and sizes are supported?
The current specification covers rectangular glass, stone slabs and similar panels from 3–25 mm, up to 1,000 × 12,000 mm. Confirm the drawing before ordering.
Technical documents
The capability sheet is what most engineers ask for first.
- R-Angle Capability Sheet Minimum radius, thickness range, tolerance, edge types. Request the document
- Double Edging Line — Specification Full technical data for the standard line. Request the document
Send us your corner drawing.
Tell us the radius, the glass thickness and the panel size. We will confirm whether it can be ground in a single pass, and at what speed.