Glass Edge Melting Systems – Precision Rim Finishing for Tableware
- Sean Davies
- Jul 9
- 2 min read
Create Safe, Smooth Rims for Premium Glassware
In the production of high-quality tableware—such as wine glasses, tumblers, and stemware—edge quality is essential. After forming or cutting, glass rims are often left with sharp, brittle edges that are unsuitable for consumer use.
Glass edge melting is a controlled heating process that softens and rounds the rim of a glass item. This creates a smooth, bead-like finish that not only enhances comfort and appearance but also reduces the risk of chipping. The result is a more durable and user-friendly product, especially important for items that come into direct contact with the lips.
How Glass Edge Melting Works
Our edge melting systems use precision-engineered gas burners to apply a narrow flame directly to the rim of each glass item. The process delivers just enough thermal energy to melt the sharp edge into a smooth, rounded bead, without distorting the shape of the vessel.
These systems are often integrated into rotary or inline production setups, and can be tuned for:
Adjustable flame profiles and temperature control
Consistent heat application across varied rim diameters
Compatibility with both clear and coloured glass
Seamless integration into automated lines
The flexibility of the system ensures repeatable results at scale—crucial for high-volume glassware production.
Not to Be Confused with Flame Polishing
While both edge melting and flame polishing involve the use of open flame, their purposes are distinct. Edge melting focuses on safety and structural integrity—removing sharpness and forming a bead. In contrast, flame polishing is used to improve surface finish or clarity, often on decorative edges or flat surfaces.
In some cases, the two processes are used together:
Edge melting to round and secure the rim
Flame polishing (optional) to add brilliance or visual clarity
This two-step approach is especially common in premium wine glasses or decorative tableware where both safety and appearance matter.
Applications Across the Glassware Industry
Our glass edge melting systems are used in the production of:
Wine glasses and flutes
Tumblers and water glasses
Candle jars
Cosmetic glass containers
Decorative or hand-blown glassware
The process is valued for its consistency, speed, and reliability, with systems tailored to meet the demands of both artisanal producers and large-scale manufacturers.
Talk to Rapidflame About Your Edge Melting Requirements
If you manufacture glassware and want to improve product safety and rim finish without compromising throughput, our glass edge melting systems offer an efficient and proven solution. Get in touch today to discuss system options, burner configurations, and integration with your existing production line.
Rapidflame manufacture and supply specialised glass edge melting burner systems. Get in touch with us today for more information on our products.
You can also learn more about the products and services we offer to the glass industry on our glass industry page.