Precision CNC Machine Shop for Custom Part Production

Criterion Precision Machining delivers mission-critical components with tolerances down to ±.0002" for industries where failure is not an option. Our ISO 13485 and ISO 9001 certified facility combines advanced Swiss turning, multi-axis CNC milling, and precision turning capabilities with decades of expertise in medical devices, aerospace, defense, and photonics. From prototype to production, we machine complex geometries in challenging materials including titanium, stainless steels, and specialty alloys.

Precision CNC machining operations producing custom metal parts

Our Precision CNC Machining Services

From Swiss turning to multi-axis milling, we deliver tight-tolerance components for mission-critical applications across medical, aerospace, and defense industries.

Swiss Turning

Advanced Swiss turning for complex, small-diameter components with tolerances to ±.0002". Ideal for high-volume production of intricate parts with exceptional surface finishes in challenging materials. Capabilities include 5-, 6-, and 8-axis Swiss screw machines with live tooling for micro-features and deep cuts.

CNC Turning

High-precision 2-axis and 6-axis multi-tasking CNC turning centers for cylindrical and complex geometry components. We specialize in tight-tolerance turned parts from micro to medium sizes, with expertise in titanium, stainless steels, and specialty alloys for critical applications.

CNC Milling

Precision 3-, 4-, and 5-axis CNC milling for intricate, multi-axis components requiring exceptional accuracy. Our advanced milling capabilities deliver consistent repeatability for complex parts in medical devices, aerospace, and photonics applications where precision is non-negotiable.

Prototyping

Production-intent prototyping using the same machines and inspection standards as full production runs. Our prototype services bridge design and manufacturing, providing meaningful performance data and real-world insights. Minimum quantities ensure consistent quality and seamless transition to high-volume production.

Quality Inspection

Certified Quality Assurance program with multiple precision inspection points including Global Advantage CMM with PC-DMIS software, OASIS optical inspection system, and Keyence measuring systems. We provide comprehensive documentation including Certificates of Conformance and detailed inspection reports at no additional charge.

Custom Part Production

End-to-end custom machining solutions for mission-critical components in medical device, aerospace, defense, and photonics industries. We handle complex geometries, challenging materials, and tight tolerances with in-house secondary operations and comprehensive quality control throughout the manufacturing process.

Tolerance to ±.0002"

Mission-Critical Precision for Industries Where Failure Is Not an Option

For over 70 years, Criterion Precision Machining has been the trusted partner for manufacturers who demand absolute accuracy. Our ISO 13485 and ISO 9001 certified facility combines state-of-the-art Swiss turning, multi-axis CNC milling, and advanced quality inspection systems to produce components that meet the exacting standards of medical device, aerospace, defense, and photonics industries. We specialize in complex geometries, micro-features, and challenging materials, delivering consistent quality from prototype through high-volume production with tolerances as tight as ±.0002".

ISO-certified CNC machine shop with advanced inspection equipment
The Criterion Difference

Why Choose Criterion Precision Machining?

Three generations of precision machining expertise combined with cutting-edge technology and unwavering commitment to quality.

Certified Quality

ISO 13485 and ISO 9001 certified with FDA and ITAR registration, ensuring compliance for medical and defense applications nationwide.

Advanced Capabilities

Multi-axis Swiss turning, 5-axis CNC milling, and precision inspection systems including Global Advantage CMM with PC-DMIS software for dimensional accuracy.

Material Expertise

Specialized machining of titanium, stainless steels, aluminum, PEEK, and specialty alloys for the most demanding specifications across critical industries.

Woman-Owned Business

WBENC-certified woman-owned company with over 70 years of manufacturing excellence, combining legacy craftsmanship with innovative precision technology.

Meet The Criterion Team

Leadership dedicated to precision, quality, and customer success.

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 does CNC machine shop mean?

A CNC machine shop uses Computer Numerical Control (CNC) technology to precisely manufacture custom parts from metal, plastic, and other materials. CNC machines follow programmed instructions to cut, mill, turn, and shape components with exceptional accuracy and repeatability. Criterion specializes in precision CNC machining for mission-critical industries requiring tight tolerances down to ±.0002".

How much does CNC machining cost?

What tolerances can you achieve in CNC machining?

What materials can you machine?

Do you offer prototyping services?

Are you ISO certified and FDA registered?

What is your typical lead time for custom parts?

Do you provide inspection reports and certifications?

Have More Questions About Our Capabilities?

Our precision machining experts are ready to discuss your project requirements and provide technical guidance.

Certified & Trusted

Awards and Recognition

ISO 13485 certification logo

ISO 13485 Certified

Medical device quality management system certification

ISO 9001 certification logo

ISO 9001 Certified

International quality management system standard certification

WBENC certification logo

WBENC Certified

Women's Business Enterprise National Council certification

Ready to Start Your Precision Machining Project?

Contact Criterion Precision Machining today for a detailed quote. Our team will review your specifications and provide expert guidance on manufacturing your mission-critical components.

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.