Optical Machining
Ultra-precise machining for lens mounts, housings, optical fixtures, and alignment-critical parts, with tight control of dimensional and geometric features that influence optical performance.
For mission-critical aerospace and optical systems, Criterion Precision Machining delivers tight-tolerance lens mounts, housings, fixtures, and complex components built for uncompromising performance. Our AS9100, ISO 9001, and ISO 13485 quality systems support precision machining, in-house inspection, traceability, and documentation for programs where alignment, repeatability, and reliability cannot be left to chance, from prototype launch through qualified production.

Integrated machining, inspection, and documentation for aerospace optical components where precision and reliability are non-negotiable.
Ultra-precise machining for lens mounts, housings, optical fixtures, and alignment-critical parts, with tight control of dimensional and geometric features that influence optical performance.
AS9100-certified machining for lightweight aircraft, defense, and space-application components using tight-tolerance CNC, Swiss turning, advanced inspection, and full material traceability.
Advanced 3-, 4-, and 5-axis CNC milling for complex geometries, tight pockets, fine features, and difficult aerospace optical materials requiring repeatable accuracy.
High-repeatability Swiss turning for small-diameter optical and aerospace components, including intricate micro-features, live tooling operations, and tolerances down to ±0.0002 inches.
Precision CNC turning for cylindrical and complex components, with live tooling options that reduce setups, cycle time, and tolerance stack-up on critical parts.
Certified inspection using CMM, OASIS optical inspection, and Keyence systems, supporting FAIRs, Certificates of Conformance, final reports, and material traceability.
Aerospace optical hardware demands more than precise toolpaths; it requires material control, geometric consistency, surface-conscious finishing, and documentation that stands up to qualification. Criterion Precision Machining supports lens mounts, housings, optical fixtures, and space or aircraft components with advanced CNC, Swiss, EDM, laser marking, and certified inspection under one accountable quality system for repeatable production performance.

Criterion combines advanced machining with disciplined quality systems for demanding aerospace optical programs.
AS9100, ISO 9001, and ISO 13485 systems support regulated component manufacturing.
CNC, Swiss, EDM, finishing, marking, and inspection remain under one roof.
Components are produced for sectors where failure is not an acceptable outcome.
ProShop ERP, FAIRs, material records, and inspection reports support program accountability.
Meet the people behind precision component delivery.

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.
Criterion Precision Machining produces lens housings, lens mounts, optical fixtures, alignment-critical optomechanical components, lightweight aircraft parts, defense-system components, and space-application components. Capabilities support tight pockets, fine features, concentricity and parallelism control, and small to mid-sized parts where dimensional accuracy directly affects optical performance and system reliability.
Connect with our team for drawing review and production guidance.
Aerospace quality system for mission-critical manufacturing.
Medical device QMS supporting regulated production.
Controlled technical data handling for defense programs.
Share your drawings, material requirements, quantities, and documentation needs, and our team will review the best path from quote to qualified production.
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.