Our Borosilicate Lampworking service
Our Borosilicate Lampworking service capabilities
We craft custom borosilicate glass into intricate lighting and technical components. Achieving ±0.2mm dimensional accuracy, we create unique, heat-resistant designs impossible through standard production methods.
Lampworking
Glass Bends
Tooling – prototyping vs production
Blowing Molds
For products with unique shapes and patterns
- Mold lifespan: 1,000–10,000 units
- Fast turnaround, cost-effective
- Graphite and stainless steel materials
Bending Molds
- Mold lifespan: 1,000-10,000 units
- Fast turnaround, cost-effective
- Stainless steel material
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.
Fired-on Decal
Service Temp: -30 to 200°C
Electroplating Iridescent
Vacuum Metallization
Mirror finish, adhesion 5B.
Flame Working
Seamless fusion, >25 MPa bond.
Glass Screen Printing
Glass Threading
Flame Sealing of Threaded Insert
Internal Diffuse Coating
Internal Glass Filament Nesting
Glass Sandblasting
Light trans 85%, 60° gloss <5 GU, Ra 2.5μm
Matte Paint Coating
60° gloss <10 GU, 5B adhesion, RAL color match.
Fritted Glass Filter
Glass Bubbling Technique
Flame Drilling
Glass Double-Wall Fusion
Lampworked Internal Assembly
Ribbed Borosilicate Tube
200°C resistant, custom rib depth.
Colored Interior Coating
Our Borosilicate Lampworking Services
Clear Borosilicate Glass
Thermal Expansion (×10⁻⁶/K) :~3.3
Softening Point (°C) :~820
Max Service Temp (°C):~450(Short-term)
Thermal Shock Resistance (ΔT °C):>160 K
Density (g/cm³)： ~2.23 g/cm³
Mechanical Strength (MPa)：60 -100 MPa
Acid Resistance (mg/cm²）：<0.7 mg/cm? (DIN 12116 Class 1)
Alkali Resistance：<134 mg/cm’(is0 695 Class A2)
Transmission (Visible Light)：> 90%
Key Characteristics：Very low coefficient of thermal expansion
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Colored Borosilicate Glass
Thermal Expansion (×10⁻⁶/K) :~3.3-4.0 x10-6/K
Softening Point (°C) :~780°C-820°C
Max Service Temp (°C):~400°C-450°C(Short-term)
Thermal Shock Resistance (ΔT °C):>150 K
Density (g/cm³)： ~2.23-2.40 g/cm3
Mechanical Strength (MPa)：50-90 MPa
Acid Resistance (mg/cm²）： <1.0 mg/cm? (DIN 12116 Class 1)
Alkali Resistance：Good，but may be slightly lower than clear glass
Transmission (Visible Light)：Opaque to Semi-translucent (depends on color & concentration)
Key Characteristics：Core properties similar to clear glass
Typical Applications： Artistic lampworking, decorative glassware, colored lighting, identifiable labware, design objects
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Milky (Opal) Glass Tube
Thermal Expansion (×10⁻⁶/K) :~85 - 92 x 10⁻⁶/K
Softening Point (°C) :~700 - 750°C
Max Service Temp (°C):~450(Short-term)
Thermal Shock Resistance (ΔT °C):Low, typically < 100 K
Density (g/cm³)：~2.45 - 2.55 g/cm³
Mechanical Strength (MPa)：~40 - 70 MPa
Acid Resistance (mg/cm²）：Fair, significantly lower than borosilicate (DIN 12116 Class 2-3)
Alkali Resistance：Poor
Transmission (Visible Light)：Opaque, high diffuse reflectance (>95% diffuse reflection)
Key Characteristics：High diffuse reflection and light diffusion capability
Typical Applications： Decorative lighting, artistic lampworking Get a product quote
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.
Precision Glass for Industrial Instruments
We manufacture durable optical glass for industrial instruments, resistant to harsh environments, ensuring precise measurement from prototype to production.
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.
Artisan Glass Gifts & Custom-Made Decor
Glass Lampshade Manufacturing
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
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.
Design Guidelines for Lampworked Glass Components
To ensure optimal manufacturability and performance for your custom lampworked glass parts, please consider the following design recommendations:
Dimensional Tolerances
- Maintain dimensional tolerances ≥ ±0.2mm
- Keep angular tolerances ≥ ±0.5°
Thread Design
- Limit thread engagements to maximum 4 turns
- Excessive threads increase risk of binding with mating parts
Wall Thickness Size
- Ideal wall thickness: 0.8-2.0mm
- Maximum recommended diameter: 350mm
Internal Structures
- Maintain minimum 10mm clearance between internal surfaces
- Avoid complex internal geometries that may cause glass adhesion
Additional Recommendations
- Incorporate gradual transitions between different sections
- Avoid sharp corners – use radii ≥ 1.5mm
Design for uniform wall thickness distribution
- Consider adding alignment features for multi-part assemblies
- Specify critical dimensions clearly on technical drawings
FAQ’s about lampworking service
What tolerance standards do you guarantee?
Our lampworked glass components comply with ASTM E438 and ISO 4803 standards for borosilicate 3.3 glass. Standard tolerances include: diameter ±1.5-2.5%, wall thickness ±15-20%, length ±2mm (≤100mm) or ±2% (>100mm), roundness ≤1.5%. Geometrical tolerances as tight as ±0.2mm are achievable when specified. Contact our technicians for special requirements.
What are the minimum and maximum dimensions you can machine?
For spherical items, our maximum diameter is 350mm. Tubular components are limited to approximately 600mm in length due to equipment constraints.Wall thickness decreases as product size increases.
What cosmetic standards do you guarantee?
Our lampworking process uses premium borosilicate glass tubes to achieve a smooth, bubble-free surface. To minimize dust contamination, we maintain strict workshop cleanliness with controlled humidity. All raw materials are pre-screened, rejecting tubes with dark spots or impurities. Final inspection under bright light identifies and removes any units with chips, cracks, or inclusions, ensuring superior surface quality.
How much does your lampworking service cost?
Our lampworking service pricing is calculated systematically based on four key factors: product dimensions, process complexity, precision requirements, and production difficulty. With extensive experience manufacturing thousands of unique designs, we have established a comprehensive reference pricing system. For detailed costing, please consult with our technical team to discuss your specific project requirements.
How can I reduce the cost of my ampworked parts?
“The cost of lampworked components is primarily driven by four factors: production time, setup, materials, and feature complexity. To minimize costs:
Optimize designs for faster production by specifying suitable inner radii, reducing cavity depth, and using standard hole sizes.
Control material costs by considering blank size and selecting readily machinable glass types.
Minimize feature costs by applying tight tolerances only where critical, eliminating text/lettering, and avoiding multiple surface finishes.
Since lampworking relies on skilled artisans, higher order quantities significantly reduce cost through improved proficiency and yield. For detailed guidance, please refer to our complete design for manufacturability guide.”
How BO-GLASS Custom Lampworking Service Works
We begin by creating CAD models and quality specifications based on your requirements. Corresponding molds and fixtures are precision-made via CNC machining. Sample units are then produced for your dimensional and quality approval before mass production proceeds. Finally, we provide inspection reports and handle all shipping arrangements.
How to Start with BO-GLASS Part Manufacturing
Submit your CAD files and technical drawings via email or WhatsApp. Our facility and local partner network support projects from rapid prototyping to full production. You will promptly receive a machining quotation or DFM feedback from our engineers to begin manufacturing.
Our other manufacturing capabilities
We can provide you with a variety of glass processing techniques.
Glass Coatings for Enhanced Performance
Precision coatings upgrade glass for light, heat & durability control.
Glass Edge Grinding & Polishing Services
Custom Hot bend glass Services
Ultrasonic Cleaning Service
Contact Us
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General inquiries
Please contact us via sales@bo-glass.com, and we will reply to you as soon as possible.
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