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Glass Edge Grinding & Polishing Services

Regardless of the manufacturing process used, high-quality surface treatment services can enhance the aesthetics and functionality of a part. Providing high-quality glass surface treatment services will enable you to turn your dream prototype or part into reality.
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Why do we need to grind the glass?

Glass edges aren’t just about looks—they keep you safe and make glass last longer. Rough edges can cut you or weaken the glass, causing cracks. At BO-GLASS, we fix that.Using high-tech machines, we shape glass edges to be perfectly smooth, angled, rounded, or flat—whatever your project needs. No sharp corners. No weak spots. Just edges that look clean, stay strong, and fit seamlessly into cars, buildings, medical gear, or anything else.
Why does it matter?
Safety first: No cuts from sharp edges.
Built to last: Proper edges prevent cracks.
Looks sharp: Polished edges upgrade your design.

Glass Edging

As the core link of glass engineering, edge processing directly determines the product’s safety performance, structural life, and design expression, BO-GLASS uses micro-crack control technology (depth ≤ 10μm) and dynamic stress relief system, combined with 9-axis linkage CNC edge grinding center (±0.05mm positioning accuracy) and diamond nano-coated grinding wheel (#120-#5000 optional grit) to provide customers with full-scenario edge solutions: 12-level finishing processes from medical-grade antibacterial matte (Ra 0.4μm) to optical mirror (Ra 0.05μm), covering complex configurations such as multi-level bevel chamfers (angle tolerance ±0.2°), seamless bullnose edges (R value = substrate thickness ±0.1mm), etc. Relying on the closed-loop water-cooled temperature control system (processing temperature ≤ 35°C) and ISO 9001 certified quality control system, we provide edge engineering services with a 300% increase in impact strength for building curtain walls, car sunroofs, touch screens, optical instruments, and other fields. We also output 3D scanning integrity reports and stress distribution cloud maps simultaneously to ensure accurate delivery of the entire cycle from prototype to mass production.

Tolerance Standards
Straight edges ±0.5 mm to ±1.0 mm
Tolerance Standards
Shaped/contoured edges ±1.0 mm to ±2.0 mm
Tolerance Standards
Chamfer/bevel angles ±0.3 mm to ±0.5 mm
Processing Dimensions
Minimum thickness 2–3 mm
Processing Dimensions
Maximum thickness Up to 25–30 mm ; up to 50 mm
Processing Dimensions
Maximum sheet size 3,000 × 2,000 mm ; up to 6,000 × 3,300 mm
Processing Dimensions
Minimum sheet size 300 × 300 mm
Processing Dimensions
Minimum radius (shaped) R3–R5 mm

Flat Ground Edge

Diamond-embedded grinding wheels (#800-#1500 grit) achieve Ra 0.4-0.8μm surface roughness

Flat Polished Edge

3-stage cerium oxide polishing post-grinding, light transmission loss <1.5% Mirror finish (Ra ≤0.05μm)

Flat Polish with Arris

45°±0.5° chamfer polishing with 0.5-2mm adjustable width Glossy main face + polished bevel

Pencil Ground Edges

R-value = Glass thickness × (10%-15%), multi-axis grinding accuracy ±0.1mm C-shaped contour 

Bullnose Edges

Curved surface Ra ≤0.1μm, radius consistency >98% Pencil-like grip surface

Half rounded edges

Seamless fluid curvature 180° semicircular profile matching substrate thickness ±0.05mm

Single Bevel Edge

15°-60° adjustable angle, bevel width 3-20mm

Multi-Bevel Edge

2-5 tiered bevels with 10°-30° angular increments

Contour Bevel Edge

Dynamic angle adaptation for 3D curved glass

Our Custom Glass Fabrication Portfolio: See Our Success Stories

Explore our portfolio of bespoke glass projects. Each piece showcases our expertise in delivering precision-engineered custom glass solutions for clients across diverse industries and applications.

Stepped LED Cover Glass

Features a machined step on the edge with a polished finish for precise fit.

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Appliance Cover Glass Black Print

Features stepped holes, black silk-screen printing, and polished chamfered edges.
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Heat-Bent Appliance Glass Panel

With black screen printing, 30° bend, and polished chamfered edges.
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Polished Edge Float Glass Disc

Float glass disc with fully polished perimeter edge for safety and smooth finish.

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Drilled Ultra-Clear Square Glass

Precision drilled holes and polished edges on low-iron ultra-clear glass.

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Square Borosilicate Viewing Window

Precision borosilicate glass with chamfered and polished edges.

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Custom Borosilicate Viewing Windows

Round borosilicate viewing windows in various thicknesses and diameters with polished edges.
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Notched Step Glass Disc with Ledge

Glass disc with 6 edge notches, machined ledge, and laser-cut profile.
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Custom Ribbed Glass Sheet

Made-to-order with precision ground thickness and polished edges.

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Bent Glass with Center Hole

Custom bent glass with centered top hole, polished edges, and made-to-order thickness.
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Borosilicate Step glass disc

With a machined flat ledge and polished edges for precise seating and safe handling.
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Inquiry and Confirmation
Receive and confirm the customer’s inquiry, ensuring accurate specifications and information.
Quotation and Sample Preparation
Prepare and send the quotation. Once confirmed by the customer, create the sample.
Sample Delivery and Feedback
Deliver the sample to the customer, gather feedback, and confirm the sample meets requirements.
Bulk Order Confirmation and Production
Once the sample is approved, confirm the bulk order, verify details, and start mass production.
Quality Inspection and Packaging
Conduct quality checks after production to ensure standards are met and packaged as required.
Shipping and Delivery

Our applications of glass processing technology

We are committed to providing our customers with one-stop solutions, from prototype development to mass production, by addressing the entire value chain of materials science, engineering design, and precision manufacturing. Our goal is to transform the ultimate performance of glass materials into a core competitive advantage for your products.

Aerospace Glass

Accelerate your aerospace projects with custom glass components, from precision prototypes to volume production.

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Glass lamp shade for outdoor lighting

Custom heat-resistant glass for outdoor lighting. From precise prototypes to full-scale production, we can assist you every step of the way.

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Precision Glass for Industrial Instruments

We manufacture durable optical glass for industrial instruments, resistant to harsh environments, ensuring precise measurement from prototype to production.

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Glass Lampshade Manufacturing

We offer high-quality production of custom indoor glass lampshades. Launch elegant designs faster and reduce risks with our reliable, on-demand manufacturing.
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Trustworthy expert in glass manufacturing solutions

At BO-GLASS, our quality control begins with comprehensive design review and DFM analysis to optimize manufacturability. Throughout production, we implement rigorous process controls with material certification and in-process verification.

We utilize advanced metrology equipment including CMM, spectrophotometers, polariscopes, and surface roughness testers to validate dimensional accuracy, optical properties, stress distribution, and surface quality.

Our quality assurance includes first-article inspection, dimensional verification, and functional testing. Each component undergoes final inspection by certified technicians. Certified to ISO 9001:2015, we guarantee all components meet the highest standards for precision and reliability in every delivery.

BO-GLASS Product Release Standard

All glass components undergo strict verification. Each order includes an inspection report confirming compliance.
Surface Quality: Smooth and uniform, free from pits or cracks. Minimal mold contact marks are acceptable.
Dimensional Integrity: Consistent contour and thickness with tight tolerances.
Material Clarity: High-quality optical materials ensure excellent clarity and uniformity.
Cleanliness: All parts are thoroughly cleaned, free from residues or visible handling marks.

Our factory and our partner factories

BO-GLASS coordinates our core facility with a dedicated network of local specialists to deliver custom glass components. You benefit from our collective expertise while we manage all communication, quality control, and logistics for a seamless experience.

Quality issues of edging products

In daily production, the following situations may occur: large diagonal error, uneven chamfering, uneven grinding, edge collapse, corner collapse, whitening of the edge of finely ground glass, indentations, scratches and other defects. The causes and solutions of the defects are shown in Table 2-1.
Processing Defect Cause Solution
Abnormal Edge Grinding Marks, Burn Marks Excessive grinding amount Reduce grinding amount
Conveyor speed is too fast Reduce conveyor speed
First, the polishing wheel pressure is too low Adjust working pressure
Insufficient water spray Check cooling system
Irregular White Grinding Marks Polishing wheel pressure too low Adjust working pressure
The grinding wheel not working properly Replace grinding wheel
Bright Ripple Marks Polishing wheel pressure too high Adjust working pressure
Beveled or Rounded Edges Incorrect polishing wheel pressure Adjust working pressure
Irregular Grinding Marks on Laminated Glass Glue on the grinding wheel Clean grinding wheel
Glass Chipping Excessive grinding amount Reduce grinding amount
Conveyor speed is too fast Reduce conveyor speed
Insufficient cooling water Check cooling system
The diamond wheel is not sharp Clean or replace the diamond wheel
Glass Scratches Transfer rack too high or moving too fast Adjust speed and height to match the edging machine
Pressing the device too tight Adjust pressing device
Synchronous belt worn out Replace synchronous belt
Damaged water guard rubber before grinding wheel Replace the water guard rubber
Uneven Polishing Incorrect polishing wheel pressure Adjust working pressure
Conveyor speed is too fast Reduce conveyor speed
Incorrect diamond wheel adjustment Adjust the diamond wheel position
Diamond wheel is not sharp Clean or replace the diamond wheel
Glass Edges Not Straight Upper and lower belt speeds do not match Adjust belt tension or replace belt
Glass Damage Solenoid valve vibration, incorrect working pressure Adjust working pressure
One or more motors are not running Check and resolve motor faults

Frequently Asked Questions: Glass Edge Processing

Why is edge processing necessary for cut glass?
Processed edges remove sharp, dangerous micro-cracks and chips created during cutting. This makes the glass safe to handle, improves its structural integrity, and provides a clean, finished appearance.
What is the difference between Arrised (Seamed) and Polished edges?
Arrised/Seamed Edge: This is a basic, cost-effective finish. The sharp edges are lightly ground to create a small, smooth bevel (or chamfer), making the glass safe to handle. The edge itself remains semi-transparent and frosted.

Polished Edge: This is a high-end, optical finish. The edge is ground and then polished to a smooth, transparent, and glossy finish. It enhances aesthetics, is easier to clean, and offers the highest level of safety and precision.

What does a "Bevelled Edge" mean?
A bevelled edge is a wide, angled cut, typically on thicker glass. It is both decorative and functional, creating a refined look while also providing a safe, sloping edge.
What level of precision can you hold on edge dimensions?
For standard processing, we can typically hold a tolerance of ±0.1mm. For high-precision applications, tighter tolerances can be achieved. Please contact us to discuss your specific requirements.
Can any type of glass undergo edge polishing?
While most common glass types (like Float, Borosilicate, and Tempered glass before tempering) can be polished, the final result depends on the glass’s hardness and composition. We will advise on the best finish for your chosen material.
What information do you need to provide for a quote?
To ensure an accurate quote, please provide:

Material Type: (e.g., Soda-Lime, Borosilicate, Ultra-clear Glass)

Glass Thickness:

Dimensional Drawings: With critical dimensions and tolerances.

Edge Finish Specification: (e.g., Seamed, Polished, 45° Chamfer, etc.)

Application: This helps us recommend the best processing method.

Our other manufacturing capabilities

We can provide you with a variety of glass processing techniques.

Physical Glass Tempering Services

Physical tempering enhances glass strength and creates safer, break-resistant panels for any application.
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Surface Lapping & Polishing

We provide professional lapping and polishing services for specialized glass components.

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Custom Hot bend glass Services

Specialized hot-bending transforms glass into custom curves and complex shapes for any application.
Read more

Ultrasonic Cleaning Service

Ultrasonic cavitation technology is used to thoroughly clean glass and precisely remove contaminants.
Read more

Contact Us

Your feedback fuels our growth, and your questions drive our solutions.

We value your feedback, inquiries, and suggestions. Please feel free to get in touch with us

General inquiries

Please contact us via sales@bo-glass.com, and we will reply to you as soon as possible.

Interested to work with us

Drop your resume at info@bo-glass.com
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