Expert Precision Manufacturing Services in the Midwest

Serving Midwest industrial OEMs since 1953, Criterion Precision Machining delivers mission-critical components with tolerances to ±.0002". Our ISO-certified facility specializes in complex geometries for medical device, aerospace, defense, and photonics applications where failure is not an option.

Precision CNC machining center manufacturing complex industrial components

Our Precision Manufacturing Services

Complete manufacturing solutions from prototype to production for mission-critical industrial applications.

Swiss Turning

Complex components with tight tolerances, ideal for small-diameter, high-volume production with diameters as small as .010".

CNC Turning

High-precision cylindrical and complex geometry parts with tight tolerances down to ±.0002" and smooth surface finishes.

CNC Milling

Precision 3-, 4-, and 5-axis milling for complex, multi-axis components with consistent repeatability and critical tolerances.

Prototyping

Production-intent prototypes with same precision standards as full production, bridging design and manufacturing seamlessly.

Quality Inspection

Certified Quality Assurance with Global Advantage CMM, PC-DMIS software, and comprehensive inspection documentation.

Materials Expertise

Specialized machining of titanium, stainless steels, PEEK, aluminum, and specialty alloys for demanding applications.

Service Process

Our 5-Step Manufacturing Process

Design Review & Engineering Analysis

Our Midwest-based engineering team conducts thorough design reviews, analyzing manufacturability and optimizing for production efficiency while maintaining critical specifications for your industrial applications.

Material Selection & Preparation

Precision Machining Execution

Multi-Point Quality Inspection

Documentation & Delivery

Trusted By Industry Leaders

Success Stories

Delivering mission-critical components for leading medical device, aerospace, and photonics companies since 1953.

"Criterion's Swiss turning capabilities are exceptional. We've relied on them for precision components with tolerances down to ±.0002" for three years without a single rejection."

Robert Chen

"Our aerospace supplier had a critical deadline for 5-axis CNC milling components. Criterion delivered production-ready parts in half the time competitors quoted, with zero rework needed."

Jennifer Kowalski

"For midwest precision manufacturing, Criterion sets the standard. Their ISO 13485 certification and tight tolerance control give us the confidence we need for implantable device components."

Dr. Marcus Webb

"We needed prototyping that matched production quality. Criterion's production-intent prototyping eliminated our design-to-manufacturing gap and accelerated our time-to-market significantly."

Sarah Mitchell

"Criterion's quality inspection services, including no-charge Certificates of Conformance, provide exceptional value. Their OASIS system catches defects competitors miss on complex optical components."

Thomas Reeves

"Working with Criterion for five years on defense systems components. Their CNC turning precision and material expertise with titanium and specialty alloys have earned our trust completely."

Major David Patterson

"Midwest precision manufacturing requires partners who understand no-failure sectors. Criterion's woman-owned expertise and ITAR registration make them invaluable for our aerospace development programs."

Elizabeth Hartman

"Their 6-axis CNC Swiss turning delivers micro-features and complex geometries we previously thought impossible. Criterion's technical depth solves problems most shops can't even quote accurately."

Frederick Walsh

"Criterion's Swiss turning capabilities are exceptional. We've relied on them for precision components with tolerances down to ±.0002" for three years without a single rejection."

Robert Chen

"Our aerospace supplier had a critical deadline for 5-axis CNC milling components. Criterion delivered production-ready parts in half the time competitors quoted, with zero rework needed."

Jennifer Kowalski

"For midwest precision manufacturing, Criterion sets the standard. Their ISO 13485 certification and tight tolerance control give us the confidence we need for implantable device components."

Dr. Marcus Webb

"We needed prototyping that matched production quality. Criterion's production-intent prototyping eliminated our design-to-manufacturing gap and accelerated our time-to-market significantly."

Sarah Mitchell

"Criterion's quality inspection services, including no-charge Certificates of Conformance, provide exceptional value. Their OASIS system catches defects competitors miss on complex optical components."

Thomas Reeves

"Working with Criterion for five years on defense systems components. Their CNC turning precision and material expertise with titanium and specialty alloys have earned our trust completely."

Major David Patterson

"Midwest precision manufacturing requires partners who understand no-failure sectors. Criterion's woman-owned expertise and ITAR registration make them invaluable for our aerospace development programs."

Elizabeth Hartman

"Their 6-axis CNC Swiss turning delivers micro-features and complex geometries we previously thought impossible. Criterion's technical depth solves problems most shops can't even quote accurately."

Frederick Walsh

"Criterion's Swiss turning capabilities are exceptional. We've relied on them for precision components with tolerances down to ±.0002" for three years without a single rejection."

Robert Chen

"Our aerospace supplier had a critical deadline for 5-axis CNC milling components. Criterion delivered production-ready parts in half the time competitors quoted, with zero rework needed."

Jennifer Kowalski

"For midwest precision manufacturing, Criterion sets the standard. Their ISO 13485 certification and tight tolerance control give us the confidence we need for implantable device components."

Dr. Marcus Webb

"We needed prototyping that matched production quality. Criterion's production-intent prototyping eliminated our design-to-manufacturing gap and accelerated our time-to-market significantly."

Sarah Mitchell

"Criterion's quality inspection services, including no-charge Certificates of Conformance, provide exceptional value. Their OASIS system catches defects competitors miss on complex optical components."

Thomas Reeves

"Working with Criterion for five years on defense systems components. Their CNC turning precision and material expertise with titanium and specialty alloys have earned our trust completely."

Major David Patterson

"Midwest precision manufacturing requires partners who understand no-failure sectors. Criterion's woman-owned expertise and ITAR registration make them invaluable for our aerospace development programs."

Elizabeth Hartman

"Their 6-axis CNC Swiss turning delivers micro-features and complex geometries we previously thought impossible. Criterion's technical depth solves problems most shops can't even quote accurately."

Frederick Walsh
The Criterion Difference

Why Choose Criterion Precision Machining?

Seven decades of precision manufacturing excellence for industries where failure is not an option.

Precision Excellence

Achieving tolerances to ±.0002" with advanced Swiss turning and 5-axis capabilities for Midwest manufacturers.

Quality Certified

ISO 13485 and ISO 9001 certified with comprehensive inspection using CMM technology and documentation.

Mission-Critical Focus

Specialized expertise in no-failure industries serving medical device, aerospace, defense, and photonics sectors across the Midwest.

Woman-Owned Legacy

Third-generation family ownership combining decades of experience with modern manufacturing technology and systems.

Meet The Criterion Team

Expert leadership driving precision manufacturing excellence.

Tanya DiSalvo, President of Criterion Precision Machining

Tanya DiSalvo

President

As the third-generation owner and President of Criterion Precision Machining, Tanya DiSalvo leads the company's commitment to precision manufacturing excellence. Under her leadership, Criterion has evolved from its 1953 origins as a general machine shop into a specialized precision manufacturing company focused on serving mission-critical industries. Tanya has positioned Criterion as a woman-owned business enterprise, maintaining the company's legacy of quality while investing in advanced technology and systems to meet the exacting demands of medical device, aerospace, defense, and photonics industries. Her vision continues to drive Criterion's focus on delivering components where failure is not an option, ensuring the company remains a trusted partner for industrial OEMs throughout the Midwest and beyond.

Mike Pinchot, Estimator/Project Manager at Criterion Precision Machining

Mike Pinchot

Estimator/Project Manager

Mike Pinchot serves as Estimator and Project Manager at Criterion Precision Machining, bringing extensive expertise in project planning and cost estimation for precision manufacturing projects. In his dual role, Mike works closely with industrial OEM clients to understand their specific requirements and develop accurate project estimates that align with their budget and timeline expectations. His deep understanding of machining processes, materials, and manufacturing capabilities enables him to provide realistic timelines and cost projections for complex components. Mike's project management skills ensure that manufacturing projects progress smoothly from initial quote through final delivery, maintaining communication with clients throughout the process. His attention to detail and commitment to meeting deadlines makes him an invaluable resource for Midwest manufacturers seeking reliable precision manufacturing partnerships.

Kelly Marflak, Quality Manager at Criterion Precision Machining

Kelly Marflak

Quality Manager

Kelly Marflak serves as Quality Manager at Criterion Precision Machining, overseeing the company's comprehensive quality assurance program that ensures every component meets the exacting standards required by mission-critical industries. With deep expertise in quality systems and inspection processes, Kelly manages Criterion's ISO 13485 and ISO 9001 certified quality program, implementing rigorous inspection protocols using advanced measurement equipment including the Global Advantage CMM with PC-DMIS software. Her leadership ensures that quality control measures are integrated throughout the manufacturing process, from initial design review through final inspection and documentation. Kelly's commitment to quality excellence supports Criterion's reputation for delivering precision components with tolerances as tight as ±.0002", making her an essential part of the team that serves medical device, aerospace, defense, and photonics industries where failure is not an option.

Frequently Asked Questions

What industries does Criterion Precision Machining specialize in?

We specialize in mission-critical industries including medical devices, aerospace, defense, and photonics where failure is not an option. Our ISO 13485 and ISO 9001 certifications ensure we meet the stringent quality requirements of these sectors.

What tolerance capabilities can you achieve?

What materials do you work with?

Do you provide prototyping services?

What quality certifications do you maintain?

What machining capabilities do you offer?

How long have you been in business?

Do you provide inspection and quality documentation?

Still Have Questions?

Talk to our manufacturing experts for a free consultation and project quote.

Certified & Trusted

Awards and Recognition

ISO 13485 certification logo

ISO 13485 Certified

Medical device quality management system

ISO 9001 certification logo

ISO 9001 Certified

Quality management system standard

WBENC certification logo

WBENC Certified

Women's Business Enterprise National Council

Ready to Start Your Precision Manufacturing Project?

Contact us for a free consultation and quote. Our team will work with you to understand your requirements and deliver mission-critical components on time.

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