Float Glass Heating Elements | High-Efficiency Silicon Carbide Heating Elements

The World’s Second Most Electrically Efficient Float Glass Heating Elements

For facilities where the most energy-efficient 28mm cold end element cannot be installed due to terminal block constraints, Starbar offers the next best solution: our 19mm cold end float element — delivering the second-highest electrical efficiency globally.

Why Cold End Design Determines Efficiency

Energy efficiency in heating elements begins at the cold ends. While our 19mm diameter matches industry standards, our design delivers significantly lower electrical resistance. Here’s why:

• Solid Beta Silicon Carbide Construction: Unlike tubular or high-resistance alternatives, our 19mm cold end is made from solid low-resistance Beta SiC, offering greater electron flow surface area.

• Negative Temperature-Resistance Relationship: Resistance decreases as temperature rises — optimizing power consumption during operation.

• Minimized Roof Module Heat Loss: By reducing resistance in cold ends, less energy is wasted heating non-critical zones.

By comparison, competing one-piece 19mm cold ends made of Alpha SiC with silicon impregnation exhibit higher initial resistance, which increases with temperature — resulting in higher operating costs and energy waste.

Starbar’s 28mm and 19mm cold ends are engineered to approach the ideal: near-zero resistance cold terminals for maximum usable power delivery.

Long-Life Hot Zones: Engineered for Durability

Our Type W three-phase hot zones are manufactured to last, using:

• Self-Bonded Recrystallized Alpha SiC

• High Density of 2.50 g/cm³

• Low Porosity & High Structural Integrity

These features ensure slow aging and outstanding thermal stability, with an average service life of 15 years — reducing replacement frequency and total cost of ownership.

Superior Welding Technology for Maximum Reliability

We go beyond standard welding to ensure joint integrity and electrical performance:

• Serrated Cold End Butts: Prior to welding, we texture the contact surface for stronger bonds and improved electrical contact.

• Two-Piece Bridge Design: Allows precise electrical connection and superior weld quality across all three hot section legs.

Ready to Optimize Your Float Glass Line’s Energy Efficiency?

Choose Starbar — where advanced materials, intelligent design, and proven performance come together in heating solutions built to last.

➤ Contact us today for technical specifications and custom element support.