Curved Glass Factory

Curved tempered glass is produced by heating flat glass to its softening point, bending it into a predetermined arc shape, and then rapidly cooling it with forced air quenching. This process creates a strong surface compressive stress and internal tensile stress, resulting in glass that is several times stronger than ordinary glass while combining smooth curved aesthetics with the safety characteristics of tempered glass.

Shandong Yaohua Glass Co., Ltd. utilises advanced curved tempering production systems, supported by high performance bending furnaces upgraded during 2025–2026. The company consistently produces large arc, large size curved tempered glass with flawless surfaces and fully compliant tempering standards. Its curved glass products received significant industry recognition at the 2026 Shanghai Glass Exhibition.

Product Parameters

The following table lists the key technical specifications. All values are for reference; final figures should be confirmed with the manufacturer based on project requirements and actual equipment capabilities.

The equipment can process clear, tinted, coated, and Low E glass substrates, and can further produce curved laminated, curved insulating, or combined units.

Application Fields

• Curved tempered glass is widely used in various scenarios due to its aesthetic curved appearance and high safety performance:

• Building facades and skylights – for streamlined exteriors of stadiums, airport terminals, convention centres, and curved roof lights. 

• Commercial and public spaces – curved entrance doors in hotel lobbies, panoramic lifts in shopping complexes, curved partitions and railings.

• High end residential projects – curved balcony doors, viewing windows, spiral staircase balustrades, and curved courtyard gates.

• Transportation facilities – subway platform screen doors, curved glass partitions in stations, and platform safety doors.

• Interior decoration and furniture – curved display cabinets, glass partitions, and high grade furniture panels.

Shandong Yaohua’s curved glass products have been successfully installed in landmark projects such as Jinan Yaoqiang Airport and Qingdao Shangjunfu Residences, demonstrating extensive engineering experience.

Product Advantages

• Superior strength – Bending strength is 4–5 times that of ordinary glass, with significantly improved impact resistance. The curved shape offers better wind load resistance than flat tempered glass. 

• High safety – When broken, the glass fragments into small, blunt, honeycomb like granules with no sharp edges, greatly reducing injury risk.

• Excellent thermal stability – Withstands temperature differences over 200°C, three times better than ordinary glass, making it suitable for environments with large temperature variations. 

• Elegant curved surface – Continuous, joint free arcs with smooth transitions from flat to curved, satisfying architectural aesthetic requirements. 

• Large size capability – Maximum size of 3.3 m × 6 m accommodates large scale curtain walls and skylights.

• Tight radius capability – Minimum radius of 450 mm enables compact curves, offering more design freedom.

• International certifications – Products carry China 3C, Australian, EU CE, US SGCC, and other international approvals, ensuring global market acceptance.

Selection Guide

When choosing curved tempered glass for your project, consider the following points. Always verify the final specifications with the manufacturer, as actual capabilities depend on thickness, radius, and size combinations.

Confirm the curvature and radius – If your design approaches the 450 mm limit, discuss feasibility with the manufacturer early. Generally, larger radii (gentler curves) are easier to produce consistently.

Determine glass thickness – Thicknesses from 5 mm to 19 mm are possible, but the minimum radius may increase with thickness. Consult the manufacturer for your specific thickness and size.

Select the glass structure:

• For general decoration or partitions: monolithic curved tempered glass.

• For high safety areas (e.g., railings, doors): curved laminated glass (with PVB or SGP interlayer). 

• For thermal insulation: curved insulating glass or 4SG curved insulating units.

• For combined safety and insulation: curved laminated insulating glass.

Choose the glass substrate – Options include clear, ultra clear, tinted, or coated glass. Low E coated curved glass requires special heating control; Shandong Yaohua’s equipment is equipped with appropriate convection technology to protect the coating.

Check the maximum size – The maximum size is 3.3 m × 6 m. Ensure your design does not exceed these limits, and consider transportation and installation constraints for oversized panels.

Before placing an order, provide detailed drawings and curvature parameters to Shandong Yaohua for a technical feasibility review to ensure the product perfectly matches your project needs.

Company Profile and Production Capacity

Shandong Yaohua Glass Co., Ltd. was established in 1985 and is located in Jinan, Shandong Province. The company operates a modern production facility covering over 50,000 square metres. It is a national high tech enterprise and has received honours including China Top 30 Processed Glass Enterprises, Shandong Specialised and Sophisticated Enterprise, and Shandong Manufacturing Single Champion Enterprise. The company holds ISO9001 and ISO45001 management system certifications, and its products are certified by China 3C, Australian standards, Korean KS, EU CE, US SGCC, and North American IGCC.

In the curved glass sector, Shandong Yaohua has recently invested in multiple high level bending and tempering machines, including the 3.3 m × 6 m model, and completed a full intelligent production line upgrade. The annual production capacity for curved tempered glass is substantial and capable of handling large orders. The company exports to more than 80 countries and regions, with over 1,000 containers shipped annually, and its glass has been used in numerous landmark buildings worldwide.

Frequently Asked Questions (FAQ)

Question: What is the difference between curved tempered glass and heat bent glass?
Heat bent glass is cooled naturally and is not safety glass. Curved tempered glass is quenched, making it 4–5 times stronger, and when broken it shatters into blunt granules. Curved tempered glass cannot be cut or drilled after tempering.

Question: Is the 450 mm minimum radius achievable for all thicknesses?
The 450 mm figure is the equipment limit. In practice, the achievable minimum radius increases with thickness. Typically, thicknesses below 10 mm are easier to bend to tight radii. Confirm with the manufacturer for your specific design.

Question: Can curved tempered glass be made into insulating or laminated units?
Yes. After bending and tempering, the glass can be further processed into laminated, insulating, or laminatedinsulating units to meet safety and energy performance requirements.

Question: How is precision ensured for large size curved glass (e.g., 3.3 m × 6 m)?
The equipment uses computer controlled temperature and mould forming, combined with mature bending and tempering processes, to ensure uniform curvature and accurate dimensions. Trial production is often conducted before mass production.

Question: How should curved tempered glass be maintained?
Clean with a neutral detergent and soft cloth, avoiding abrasive tools. Regularly check edges for chips and hardware for looseness. For laminated products, inspect edge seals.

Question: Does Shandong Yaohua offer special colours or surface finishes?
Yes, tinted glass, ceramic frit, coatings, and low reflective finishes are available. However, the feasibility depends on the specific glass type and curvature; consult the manufacturer for your design requirements.