75mm Conventional Polymer Optic vs. 40mm ZaxMold™ Gateless
Polarized light images
The color pattern indicates stress in the conventional polymer optics molded part
It can be seen that the stress emanates from the gate

Conventional

ZaxMold™ Gateless
The lack of color in the ZaxMolded part indicates a very low level of stress which is preferred and required for polymer optics
The ZaxMolded part is molded without a gate and the associated stress
At Zaxsys, innovation drives everything we do. Our proprietary ZaxMold™ Process will revolutionize the production of optical blanks by eliminating gates and significantly reducing molded-in stress. This cutting-edge injection-compression molding technology is designed to deliver superior optical substrates for the Single Point Diamond Turning (SPDT) industry.
The ZaxMold™ Process: A Game-Changer
Our gateless injection-compression molding process sets a new standard for precision optical manufacturing. By removing gates from the molding process, we achieve:
- Significantly Reduced Molded-In Stress: Gates are known to introduce internal stress during conventional injection molding, leading to optical aberrations such as birefringence. Our gateless approach eliminates this issue, ensuring stress-free blanks.
- No Need for Annealing: Conventional optical blanks require annealing to reduce stress and eliminate birefringence. With the ZaxMold™ Process, annealing is unnecessary, saving time and costs.
- Enhanced Surface Dimensional Accuracy: The absence of gates ensures excellent plano surfaces, ideal for SPDT machining.
Why Gates Are Problematic
In traditional injection molding, gates serve as entry points for molten material. However, they often create challenges:
- Stress Concentration: The injection point introduces localized stress, which can propagate throughout the blank, affecting optical performance.
- Optical Aberrations: Stress-induced birefringence compromises the performance and precision of optical components.
- Secondary Machining: Gates leave marks that require additional machining to remove, increasing production time and costs.
Superior Optical Blanks for SPDT
Our ZaxMold™ Process produces optical blanks with:
- Low Stress: Ideal for SPDT machining, ensuring precision and reliability.
- No Secondary Machining: Eliminating gates means no post-molding machining is required.
- Custom Thickness Options: From 3 mm to 27 mm for 75 mm diameter blanks, and similar flexibility for upcoming 26 mm diameter blanks.
- Optical Window Quality: Perfect plano surfaces and consistent quality make our blanks suitable for high-performance applications.
Why Test Our Blanks?
The SPDT industry demands substrates that reduce costs and improve quality. Our gateless optical blanks offer:
- Reduced Production Costs: No annealing or secondary machining required.
- Improved Optical Performance: Stress-free blanks eliminate birefringence and other aberrations.
- Enhanced Efficiency: Superior dimensional accuracy minimizes machining time.
Partner With Us
The ZaxMold™ Process is the centerpiece of our innovative technology, designed to meet the needs of the SPDT industry. Contact us today to learn more about how our optical blanks can transform your production processes.