CNC Machining Services in Tennessee

Criterion Precision Machining delivers mission-critical CNC machining services to manufacturers across Tennessee, holding tolerances down to ±.0002" for medical device, aerospace, defense, and photonics applications. From Swiss turning and CNC milling to precision inspection, we bring over 70 years of trusted manufacturing expertise to every component we produce.

CNC machining services in Tennessee — precision milling center producing tight-tolerance components

Our CNC Machining Services

Comprehensive precision machining solutions for Tennessee manufacturers in medical, aerospace, defense, and photonics industries.

CNC Milling

Precision 3-, 4-, and 5-axis CNC milling for complex, multi-axis components with tight tolerances and consistent repeatability across every production run.

CNC Turning

High-precision CNC turning for cylindrical and complex geometry parts, achieving tolerances down to ±.0002" with smooth, consistent surface finishes.

Swiss Turning

Specialized Swiss turning for small-diameter, intricate components with micro-sized features, ideal for high-volume production in medical and aerospace applications.

Prototyping

Production-intent prototyping built to the same precision and compliance standards as full production orders, enabling seamless transition to higher-volume manufacturing.

Quality Inspection

Certified quality assurance with CMM inspection, OASIS optical measurement, and Keyence systems — plus complimentary Certificates of Conformance and final inspection reports.

Mission-Critical Quality

Precision CNC Machining Built for No-Failure Industries

Tennessee's advanced manufacturing sector — from medical device OEMs to aerospace suppliers — demands machining partners that never compromise on accuracy. Criterion Precision Machining delivers tolerances as tight as ±.0002", multi-axis milling, Swiss turning, and ISO 13485/9001-certified quality systems to ensure every component meets the exacting standards your application requires. With over 70 years of precision machining heritage, we are built to perform when failure is simply not an option.

Precision CNC machined aerospace and medical components on an inspection table
The Criterion Difference

Why Choose Criterion Precision Machining?

We combine seven decades of precision machining expertise with advanced technology and certified quality systems to deliver components Tennessee manufacturers can depend on.

Tight Tolerances

We hold tolerances down to ±.0002", meeting the strictest demands of medical device and aerospace manufacturers across Tennessee and the U.S.

ISO Certified

ISO 13485 and ISO 9001 certified with FDA and ITAR registration, ensuring full compliance with the regulatory standards your industry requires.

70+ Years Experience

Founded in 1953 and now in its third generation of ownership, Criterion brings unmatched precision machining legacy to every Tennessee project.

Women-Owned Business

A WBENC-certified, woman-owned enterprise led by President Tanya DiSalvo, delivering people-powered precision for mission-critical industries nationwide.

Meet the Criterion Team

Experienced professionals dedicated to precision, quality, and mission-critical results.

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

How to calculate CNC machining cost per hour?

CNC machining cost per hour is calculated by adding machine operating costs (depreciation, maintenance, utilities), labor costs, overhead, and tooling expenses, then dividing by productive hours. Rates typically range from $50 to $200+ per hour depending on machine type, complexity, and material. For an accurate quote tailored to your Tennessee project, contact Criterion directly.

How much does it cost to run a CNC mill per hour?

What industries does Criterion Precision Machining serve in Tennessee?

What CNC machining tolerances can Criterion hold?

What materials does Criterion machine?

Does Criterion offer prototyping services?

Is Criterion Precision Machining ISO certified?

How does Criterion ensure the quality of machined parts?

Still Have Questions About Our Machining Services?

Speak with our team for expert guidance and a free, no-obligation project quote.

Where We Serve

Criterion ships precision-machined components to manufacturers across Tennessee and throughout the entire United States.

Do We Ship to Your Location?

We deliver precision-machined components to manufacturers across Tennessee and the entire U.S.

Certified & Trusted

Awards and Recognition

ISO 13485 certification badge for Criterion Precision Machining

ISO 13485 Certified

International standard for medical device quality management systems.

ISO 9001 certification badge for Criterion Precision Machining

ISO 9001 Certified

Globally recognized quality management system certification.

WBENC Women's Business Enterprise certification badge

WBENC Certified

Women's Business Enterprise National Council certified woman-owned business.

Get a Precision Machining Quote for Your Tennessee Project

Share your project requirements and one of our experienced estimators will provide a detailed, no-obligation quote. We specialize in tight-tolerance components for medical, aerospace, defense, and photonics applications.

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.