Precision CNC Machining for High-Performance Plastics

Criterion Precision Machining produces tight-tolerance components from high-performance plastics for medical device, aerospace, defense, and photonics programs where failure is not an option. With CNC milling, turning, Swiss machining, inspection, and traceability under one certified quality system, engineers get production-ready plastic parts built for demanding assemblies, regulated documentation, and repeatable performance.

CNC machining high-performance plastic component

Our Precision CNC Machining Services

Precision machining, finishing, prototyping, and inspection for high-performance plastic components in regulated industries.

Plastic CNC Milling

Advanced 3-, 4-, and 5-axis CNC milling produces complex plastic components with tight pockets, fine features, lens housings, mounts, and regulated-part geometries.

Plastic CNC Turning

Multi-axis CNC turning with live tooling supports cylindrical plastic parts, done-in-one production, smooth finishes, and reduced tolerance stack-up on complex geometries.

Swiss Micro-Machining

Swiss turning produces small-diameter, high-repeatability plastic components with micro-features, deep cuts, and diameters as small as .010" for critical assemblies.

Production Prototyping

Production-intent prototypes are made on production equipment and inspected with production metrology, helping approved plastic parts transition directly into higher-volume programs.

Secondary Finishing

In-house deburring, vibratory finishing, high-energy tumbling, laser marking, and assembly support help complete precision plastic parts under one traceable quality system.

Quality Inspection

CMM, OASIS optical inspection, Keyence measurement systems, FAIRs, Certificates of Conformance, and material traceability support regulated plastic component programs.

No Failure Plastics

Precision Plastic Parts Built for Demanding Programs

High-performance plastics demand more than standard machining parameters. Criterion combines multi-axis CNC equipment, Swiss turning, in-house finishing, and certified inspection to control features that affect fit, alignment, durability, and regulatory acceptance. From PEEK medical components to specialty plastic optomechanical parts, every program is built around manufacturability, traceability, and repeatable production quality.

Inspection of precision machined plastic components
The Criterion Difference

Why Choose Criterion Precision Machining?

Criterion helps engineers source precision plastic components with confidence, documentation, and repeatable quality.

No Failure Focus

Built for medical, aerospace, defense, and photonics applications where component failure is unacceptable.

Certified Quality

ISO 13485 and ISO 9001 systems support repeatable quality and regulated documentation.

Integrated Capability

CNC milling, turning, Swiss machining, finishing, marking, and inspection stay under one roof.

Advanced Inspection

CMM, optical, and image-dimension systems verify tight tolerances and traceable inspection data.

Meet The Criterion Team

Experienced leadership for mission-critical precision machining programs.

Professional headshot of Tanya DiSalvo, President

Tanya DiSalvo

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.

Professional headshot of Kelly Marflak, Quality Manager

Kelly Marflak

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.

Professional headshot of Mike Pinchot, Estimator/Project Manager

Mike Pinchot

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.

Professional headshot of David Glass, Chief Financial Officer

David Glass

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.

Kellyanne Gottschalk, Internal Systems Manager at Criterion Precision Machining

Kellyanne Gottschalk

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.

Nilda Feliciano, Customer Service representative at Criterion Precision Machining

Nilda Feliciano

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.

Bonnie Paletta, Office Administrator at Criterion Precision Machining

Bonnie Paletta

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.

Frequently Asked Questions

What high-performance plastics can be CNC machined?

Criterion machines high-performance and specialty plastics used in regulated applications, including materials such as PEEK and UHMWPE where required. The team also has experience with plastics used in medical devices, aerospace, defense, and photonics assemblies. Material selection is reviewed against tolerance, geometry, surface finish, traceability, and end-use requirements before production begins.

How tight can tolerances be on plastic CNC machined parts?

Can you produce prototypes before full production?

Do you machine plastic components for medical devices?

What inspection methods are used for machined plastic parts?

Can you support aerospace and defense plastic machining requirements?

What production volumes do you support?

What documentation is included with machined parts?

Need Help With Material or Tolerance Questions?

Send your drawings and requirements for a technical review.

Certified & Trusted

Awards and Recognition

ISO 13485 certification badge

ISO 13485

Medical device quality management certification.

ISO 9001 certification badge

ISO 9001

Certified quality system for repeatable production.

FDA and ITAR registered badge

FDA & ITAR

Controlled-data readiness for regulated programs.

Start Your High-Performance Plastics Project

Share your drawings, material requirements, tolerances, volumes, and documentation needs. Our team will review manufacturability and respond with clear next steps.

Contact Us Today

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.