CNC Milling
Multi-axis CNC milling for complex laser housing and optical subassembly components. Our 3-, 4-, and 5-axis capabilities produce intricate geometries with consistent repeatability and tolerances down to ±.0002".
Laser and photonics systems demand components machined to sub-micron exactness—where a single deviation can compromise an entire assembly. Criterion Precision Machining delivers tight-tolerance parts for laser housings, lens mounts, and optical subassemblies, combining Swiss turning, multi-axis CNC milling, and ISO-certified quality assurance to keep your laser systems performing flawlessly, every time.

Comprehensive precision machining solutions for laser and photonics assemblies, engineered to the tightest tolerances in the industry.
Multi-axis CNC milling for complex laser housing and optical subassembly components. Our 3-, 4-, and 5-axis capabilities produce intricate geometries with consistent repeatability and tolerances down to ±.0002".
Swiss turning for slender, micro-sized laser assembly parts requiring exceptional surface finishes. Ideal for small-diameter optical components in titanium, stainless steel, and specialty alloys with tolerances down to ±.0002".
High-precision CNC turning for cylindrical laser assembly components and complex geometry optical parts. We deliver tight tolerances and smooth surface finishes critical to photonics performance.
Production-intent prototyping for laser and photonics components—lens housings, mounts, and optical system parts—produced on the same machines and to the same standards as full production orders.
ISO-certified multi-point inspection for laser assembly components using CMM, OASIS optical inspection, and Keyence systems. Certificates of Conformance and final inspection reports provided at no charge.
Expert machining of titanium, stainless steels, aluminum, PEEK, and specialty alloys commonly required in laser and photonics assemblies—ensuring dimensional integrity and surface quality for optical performance.
Laser and photonics assemblies leave no margin for error—misaligned tolerances mean failed optical performance. Criterion Precision Machining brings over 70 years of machining expertise to lens mounts, optical housings, and laser subassemblies, holding tolerances down to ±.0002" across titanium, stainless steel, and specialty plastics. Our ISO 13485 and ISO 9001 certified facility, combined with multi-axis Swiss and CNC capabilities, ensures every component ships inspection-verified and production-ready.

From our Ohio facility, we bring seven decades of precision machining experience to every laser assembly component we produce.
We hold tolerances down to ±.0002", meeting the exacting demands of laser optics and photonics assemblies.
ISO 13485 and ISO 9001 certified with multi-point CMM and optical inspection—every laser component is verified before shipment.
Founded in 1953 and now third-generation owned, Criterion has deep roots serving precision industries across the United States.
Specialized exclusively in mission-critical sectors—photonics, medical, aerospace, and defense—where component failure is never an option.
Experienced professionals dedicated to precision, quality, and mission-critical manufacturing.

President
As third-generation owner and President of Criterion Precision Machining, Tanya DiSalvo leads our commitment to delivering mission-critical components for Texas railroad infrastructure. Under her leadership, Criterion has evolved into a woman-owned precision machining company specializing in the 'No Failure' sectors, including railroad safety systems. Tanya's vision has guided the company's investment in advanced CNC technology and ISO certification programs, ensuring our Texas railroad clients receive components that meet the most stringent safety and performance standards. Her dedication to quality excellence and operational efficiency has positioned Criterion as a trusted partner for railroad manufacturers requiring precision components that perform reliably across Texas's diverse operating environments, from Gulf Coast humidity to West Texas desert conditions.

Quality Manager
Kelly Marflak serves as Quality Manager at Criterion Precision Machining, overseeing our comprehensive quality assurance programs critical to railroad component manufacturing. With deep expertise in precision inspection protocols, Kelly manages our certified Quality Assurance program that includes multiple points of precision inspection built into manufacturing processes. She oversees the operation of our Global Advantage CMM with PC-DMIS software, OASIS Optical Automatic Smart Inspection System, and Keyence measuring systems capable of measuring up to 99 dimensions simultaneously. Kelly's meticulous attention to detail ensures every railroad component meets the exacting tolerances and safety standards required for Texas railroad applications. Her leadership in quality control processes has been instrumental in maintaining our ISO 13485 and ISO 9001 certifications, providing railroad manufacturers with the documentation and compliance verification essential for safety-critical components operating across Texas's extensive rail network.

Estimator/Project Manager
Mike Pinchot brings extensive project management expertise to Criterion's railroad machining operations as Estimator and Project Manager. With deep understanding of precision manufacturing requirements, Mike works closely with Texas railroad clients to develop accurate project estimates and manage complex machining programs from concept through delivery. His technical expertise enables him to assess challenging railroad component specifications and coordinate multi-axis machining operations, Swiss turning processes, and quality inspection requirements. Mike's project management approach ensures railroad components are delivered on time and within budget while meeting the stringent quality standards required for safety-critical applications. His collaborative work with engineering teams and manufacturing personnel has streamlined processes for producing complex railroad parts, from prototype development through full production runs, ensuring Texas railroad infrastructure receives components manufactured to the highest precision standards.

Chief Financial Officer
David Glass serves as Chief Financial Officer at Criterion Precision Machining, bringing strategic financial leadership to support our continued growth and investment in advanced manufacturing capabilities. With his comprehensive understanding of manufacturing economics and operational efficiency, David ensures that our precision machining operations remain competitive while maintaining the highest quality standards. His financial expertise enables Criterion to make strategic investments in cutting-edge CNC equipment, quality systems, and workforce development that directly benefit our clients in mission-critical industries. David's analytical approach to business management helps optimize our manufacturing processes and resource allocation, ensuring we can deliver exceptional value to customers while maintaining the financial stability necessary for long-term partnerships. His commitment to operational excellence supports our ability to serve the demanding requirements of medical device, aerospace, defense, and photonics manufacturers who rely on our precision machining capabilities.

Internal Systems Manager
Kellyanne Gottschalk serves as Internal Systems Manager at Criterion Precision Machining, responsible for managing and optimizing the company's operational and business systems, including the ProShop ERP platform. Her role is critical in ensuring seamless workflow from order intake to final delivery, enabling real-time visibility into production scheduling, quality documentation, and compliance tracking. Kellyanne's expertise in systems management supports Criterion's ability to scale efficiently while maintaining the rigorous documentation and traceability standards required by regulated industries such as medical devices and aerospace. Her work underpins the company's operational excellence and helps ensure every project is delivered on time and in full compliance.

Customer Service
Nilda Feliciano is the Customer Service representative at Criterion Precision Machining, serving as a dedicated point of contact for clients throughout the entire order lifecycle. From initial inquiries to order updates and delivery coordination, Nilda ensures that every client receives responsive, clear, and professional communication. Her commitment to customer satisfaction reflects Criterion's values of reliability and partnership, particularly important for clients in time-sensitive industries like aerospace, defense, and medical devices. Nilda's friendly and knowledgeable approach helps build lasting relationships with customers, ensuring they feel supported and informed at every stage of their project with Criterion.

Office Administrator
Bonnie Paletta serves as Office Administrator at Criterion Precision Machining, keeping the day-to-day operations of the business running smoothly. Her organizational skills and attention to detail ensure that administrative processes, documentation, and internal coordination are handled efficiently, freeing up the production and quality teams to focus on delivering precision components. Bonnie is a vital part of the Criterion team, contributing to the company's culture of professionalism and reliability. Her support role touches every department, helping to maintain the high standards of communication and organization that Criterion's clients in medical device, aerospace, and defense industries depend on.
Laser beam machining offers contactless material removal, enabling extremely fine features without mechanical stress on delicate parts. It allows high precision on hard or brittle materials, minimal heat-affected zones with proper parameters, and the ability to machine complex geometries. For laser assembly components specifically, LBM can complement traditional CNC methods for features that require micron-level accuracy.
Speak with our engineering team for a free consultation on your laser assembly component requirements.
Criterion Precision Machining ships precision laser assembly components to customers across the United States from our Brook Park, Ohio facility.
Nationwide U.S.
Service Area
Brook Park, Ohio
Headquarters
Since 1953
In Business
We serve laser and photonics manufacturers across the entire United States. Contact us to discuss your project.
Quality management certification for medical device manufacturing compliance.
International standard confirming our quality management systems meet global benchmarks.
Women's Business Enterprise National Council certified woman-owned business.
Share your component drawings, tolerances, and material requirements. Our team will review your specifications and respond with a detailed, competitive quote tailored to your laser assembly project.
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.