Optical glass is one of the most demanding materials in precision machining. It is used wherever perfect surfaces and absolute dimensional accuracy are essential—such as in camera lenses, microscopes, laser systems, and highly sensitive sensors. But machining presents major challenges: glass is brittle, prone to breaking, and highly sensitive to heat and mechanical stress.
The challenge of optical glass
Even the smallest microcracks or internal stresses can permanently impair optical quality. Conventional cutting methods often generate cutting forces that are too high, leading to chipping or uneven edges. Subsequent polishing or grinding not only increases costs but can also negatively affect the functionality of the component.
The DRAMET solution: Diamond-coated saw bands in grinding quality
With more than 30 years of experience in developing precision saws, DRAMET has engineered specialized diamond-coated saw bands that cut even the most delicate glass gently and accurately.
Thanks to minimal cutting forces (0.5–4 N) and extremely narrow kerfs of just 0.45–0.85 mm, chipping is avoided and the material is preserved. The smooth, parallel cut surfaces often eliminate the need for reworking.
Process reliability through modern technology
DRAMET machines combine precision with process control.
Optional NC control ensures reproducible cutting movements, while integrated cutting force measurement and extraction keep the machining process stable and clean. Together with optional water cooling, these features create ideal conditions for crystal-clear cut quality—without dust and without stress fractures.
Machine recommendations for glass processing
• 200 Series – Compact design, ideal for laboratory work, research, and small glass and quartz components
• 270 Series – Flexible, automatable, and equipped with NC control for reproducible precision cuts
• 400 Series – Robust and powerful, perfect for large glass panels or series production
Conclusion
Optical glass requires the highest level of precision and maximum material preservation—and this is where DRAMET excels. With diamond-coated saw bands, intelligent machine concepts, and more than 30 years of experience, DRAMET delivers crystal-clear results—clean, precise, and economical.
Contact us for a non-binding consultation to find the optimal solution for your glass processing needs.
