CNC Milling
Multi-axis CNC milling for complex photonic components requiring tight tolerances and consistent repeatability. Our 3-, 4-, and 5-axis capabilities handle intricate lens housings and optical system parts with precision.
Photonic and optical components demand tolerances that leave no room for error. Criterion Precision Machining delivers exacting CNC turning, Swiss turning, and 5-axis milling for lens housings, optical mounts, and precision photonic assemblies. With ISO 13485 and ISO 9001 certifications and over 70 years of machining legacy, we're the partner your photonics project demands.

Comprehensive precision machining solutions for photonic and optical components, from prototyping through full production with certified quality.
Multi-axis CNC milling for complex photonic components requiring tight tolerances and consistent repeatability. Our 3-, 4-, and 5-axis capabilities handle intricate lens housings and optical system parts with precision.
High-precision CNC turning for cylindrical optical components and photonic assemblies. We achieve tolerances down to ±.0002" with smooth surface finishes critical for optical alignment and performance.
Swiss turning for small-diameter, high-precision photonic parts with micro-sized features. Ideal for lens mounts and slender optical components requiring exceptional surface finish and tolerances down to ±.0002".
Production-intent prototyping for photonic and optical components, including lens housings and optical system parts. Prototypes are produced on the same machines as final production, enabling direct scale-up with no re-qualification.
Certified quality inspection using CMM, OASIS optical inspection, and Keyence systems to validate photonic component dimensions and surface specifications with full documentation included at no charge.
Skilled machining of titanium, stainless steels, specialty plastics, PEEK, and precision alloys commonly required for photonic and optical component applications in demanding environments.
Photonic components operate at the edge of physical tolerances—where a fraction of a thousandth of an inch determines system performance. Criterion Precision Machining brings over 70 years of machining expertise to lens housings, optical mounts, and photonic assemblies. Our ISO-certified facility in Brook Park, Ohio, combines Swiss turning, multi-axis CNC milling, and advanced optical inspection to deliver components that meet the exacting demands of the photonics and optics industry every time.

See how Criterion delivers mission-critical photonic components for leading optics and technology companies.
We bring decades of precision machining experience, certified quality systems, and advanced technology to every photonic component we produce.
ISO 13485 and ISO 9001 certified with multi-point inspection processes ensuring every photonic component meets specification.
Founded in 1953 in Brook Park, Ohio, with three generations of precision machining expertise serving critical industries across the United States.
Tolerances down to ±.0002" across Swiss turning, CNC turning, and 5-axis milling—critical for optical alignment and photonic system integrity.
Production-intent prototyping on the same equipment as full production runs means faster scale-up and no re-qualification for photonics customers.
Experienced professionals dedicated to precision, quality, and mission-critical results.

President
As the third-generation owner and President of Criterion Precision Machining, Tanya DiSalvo leads a company with over 70 years of precision machining heritage rooted in Brook Park, Ohio. Under her leadership, Criterion has grown into a nationally recognized woman-owned precision machining business serving the photonics, medical device, aerospace, and defense industries. Tanya champions a culture of zero-compromise quality, continuous investment in advanced machining technology, and a commitment to serving industries where failure is simply not an option. Her vision has positioned Criterion as a trusted partner for some of the most demanding optical and photonic component applications in the United States.

Estimator/Project Manager
Mike Pinchot serves as Estimator and Project Manager at Criterion Precision Machining, playing a pivotal role in translating complex photonic and optical component requirements into accurate, competitive quotes and actionable production plans. With deep familiarity of Criterion's Swiss turning, CNC turning, and multi-axis milling capabilities, Mike ensures that every project—from initial inquiry to final delivery—is scoped, priced, and executed with precision. His expertise in working with demanding tolerances and specialty materials makes him a valuable first point of contact for new photonics and optics customers seeking a reliable machining partner.

Chief Financial Officer
David Glass serves as Chief Financial Officer at Criterion Precision Machining, overseeing the financial strategy and operational stability that allows Criterion to continually invest in advanced machining and inspection technology. His financial leadership supports the company's long-term growth and its ability to take on complex, high-stakes photonic and optical component programs. David's work ensures that Criterion remains a financially sound and reliable partner for customers in the photonics, medical device, aerospace, and defense sectors who depend on consistent, uninterrupted supply of mission-critical components.

Quality Manager
Kelly Marflak is the Quality Manager at Criterion Precision Machining, responsible for overseeing the company's ISO 13485 and ISO 9001 certified quality assurance program. Kelly ensures that every photonic and optical component leaving Criterion's facility meets the tightest dimensional and surface specifications. Leveraging advanced inspection tools including the Global Advantage CMM with PC-DMIS software, the OASIS Optical Automatic Smart Inspection System, and Keyence multi-dimensional measurement systems, Kelly and her team provide rigorous multi-point inspection and full documentation—Certificates of Conformance and final inspection reports—at no charge to customers.

Internal Systems Manager
Kellyanne Gottschalk manages Criterion Precision Machining's internal systems, including the ProShop ERP platform that enables seamless tracking of every photonic component through the production and inspection workflow. Her work ensures that scheduling, documentation, and process compliance are maintained consistently across all programs. By keeping Criterion's operational systems running efficiently, Kellyanne helps the company uphold its commitment to on-time delivery and zero-defect quality for photonics, medical device, aerospace, and defense customers who cannot afford delays or non-conformances.

Customer Service
Nilda Feliciano is a key member of Criterion Precision Machining's customer-facing team, providing responsive and knowledgeable support to photonics, medical device, aerospace, and defense customers. Nilda serves as a dependable point of contact for order inquiries, delivery updates, and documentation requests, ensuring that clients always have clear visibility into their program status. Her dedication to customer satisfaction reflects Criterion's broader commitment to being a trusted, long-term partner for industries where precision, reliability, and communication are equally critical to mission success.

Office Administrator
Bonnie Paletta serves as Office Administrator at Criterion Precision Machining, keeping daily operations organized and running smoothly. From managing administrative workflows to supporting the team in delivering timely and accurate service to customers, Bonnie plays an essential role in maintaining the professional, efficient environment that Criterion's photonics and optics clients depend on. Her attention to detail and organizational expertise mirrors the precision mindset that defines every aspect of Criterion's manufacturing operations—ensuring that behind-the-scenes processes are as reliable as the components the company produces.
What is a photonic component?
A photonic component is a precision part that generates, manipulates, or detects light within optical and photonic systems. Examples include lens housings, optical mounts, beam splitter assemblies, and fiber optic ferrules. These components require extremely tight dimensional tolerances and superior surface finishes to ensure proper light transmission and system performance.
What does precision machining mean?
What materials does Criterion machine for photonic components?
What tolerances can Criterion hold for photonic parts?
Does Criterion offer prototyping for photonic components before full production?
What certifications does Criterion hold for photonic component machining?
What inspection capabilities does Criterion use for photonic parts?
How do I request a quote for photonic component machining?
Speak directly with our precision machining experts for a no-obligation consultation and quote.
Internationally recognized quality management system certification.
Medical device quality management standard, ensuring rigorous process control.
Women's Business Enterprise National Council certification, woman-owned business.
Share your part drawings and requirements with our team. We'll provide a detailed, competitive quote for your photonic component machining needs—no obligation, no delays.
For immediate assistance, feel free to give us a direct call at 216-267-1733 You can also send us a quick email at office@criteriontool.com
For immediate assistance, feel free to give us a direct call at 216-267-1733 You can also send us a quick email at office@criteriontool.com