Expert Custom Metal Fabrication Prototype Services

Transform your design concepts into precision-engineered prototypes with our advanced metal fabrication capabilities. At Criterion Precision Machining, we bridge the critical gap between design and production, delivering prototypes with the same exacting standards as full production runs. Our production-intent prototyping ensures your components are tested for fit, function, and manufacturability before moving to volume production.

Precision metal prototype components being manufactured on advanced CNC machinery

Our Custom Metal Fabrication Prototype Services

Complete prototyping solutions from concept to production-ready components with precision machining capabilities.

Production-Intent Prototyping

Bridge design and production with prototypes manufactured using the same precision standards, machines, and inspection equipment as full production runs.

Swiss Turning Prototypes

Complex small-diameter components with tight tolerances down to ±.0002" for intricate geometries and micro-features in challenging materials.

CNC Milling Prototypes

Multi-axis precision milling for complex prototype components requiring intricate geometries and consistent repeatability across critical industries.

CNC Turning Prototypes

High-precision cylindrical and complex geometry prototypes with smooth surface finishes for medical, aerospace, defense, and photonics applications.

Quality Inspection Services

Comprehensive precision inspection and documentation using advanced CMM technology and optical measurement systems for prototype validation.

Material Expertise

Specialized prototyping in titanium, stainless steels, aluminum, PEEK, and specialty alloys for demanding mission-critical applications.

Service Process

Our 4-Step Prototype Development Process

Design Review & Material Selection

Our engineering team analyzes your specifications and recommends optimal materials and manufacturing approaches. We evaluate feasibility for medical device, aerospace, defense, and photonics applications while ensuring compliance with industry standards.

Production-Intent Programming

Precision Manufacturing

Comprehensive Inspection & Documentation

Trusted By Industry Leaders

Success Stories

Delivering mission-critical prototypes for leading companies in medical devices, aerospace, and defense industries.

"Criterion's Prototyping service delivered our surgical instrument design with production-intent quality. Same machines, same standards—no surprises moving to full manufacturing."

Dr. Sarah Chen

"We struggled with tight tolerance requirements until Criterion's Swiss Turning solved our micro-component challenge. Their ±.0002" accuracy transformed our entire product line."

James Reichert

"As an aerospace supplier, finding a reliable custom metal fabrication prototype partner is critical. Criterion delivers mission-ready prototypes with FDA and ITAR credentials we demand."

Michael Torres

"Our defense project had aggressive timelines. Criterion's CNC Turning capability turned around complex geometry parts in days without compromising quality. Exceptional responsiveness."

Colonel Robert Adams

"Criterion's ISO 13485 certification and no-charge inspection documentation gave us complete compliance confidence. Every certificate of conformance was accurate and comprehensive."

Patricia Winters

"Twenty years of partnership with Criterion—they've grown with us through medical device transitions, always delivering consistent 5-axis CNC milling precision when it matters most."

Vincent Moretti

"Their Global Advantage CMM with PC-DMIS software inspection validated every micro-feature in our photonics housings. Technical excellence and attention to detail unmatched."

Dr. Lisa Nakamura

"As a competitor evaluating vendors, Criterion's custom metal fabrication prototype capabilities position them as the industry standard. Woman-owned, ISO certified, ITAR-registered—complete package."

Howard Kellerman

"Criterion's Prototyping service delivered our surgical instrument design with production-intent quality. Same machines, same standards—no surprises moving to full manufacturing."

Dr. Sarah Chen

"We struggled with tight tolerance requirements until Criterion's Swiss Turning solved our micro-component challenge. Their ±.0002" accuracy transformed our entire product line."

James Reichert

"As an aerospace supplier, finding a reliable custom metal fabrication prototype partner is critical. Criterion delivers mission-ready prototypes with FDA and ITAR credentials we demand."

Michael Torres

"Our defense project had aggressive timelines. Criterion's CNC Turning capability turned around complex geometry parts in days without compromising quality. Exceptional responsiveness."

Colonel Robert Adams

"Criterion's ISO 13485 certification and no-charge inspection documentation gave us complete compliance confidence. Every certificate of conformance was accurate and comprehensive."

Patricia Winters

"Twenty years of partnership with Criterion—they've grown with us through medical device transitions, always delivering consistent 5-axis CNC milling precision when it matters most."

Vincent Moretti

"Their Global Advantage CMM with PC-DMIS software inspection validated every micro-feature in our photonics housings. Technical excellence and attention to detail unmatched."

Dr. Lisa Nakamura

"As a competitor evaluating vendors, Criterion's custom metal fabrication prototype capabilities position them as the industry standard. Woman-owned, ISO certified, ITAR-registered—complete package."

Howard Kellerman

"Criterion's Prototyping service delivered our surgical instrument design with production-intent quality. Same machines, same standards—no surprises moving to full manufacturing."

Dr. Sarah Chen

"We struggled with tight tolerance requirements until Criterion's Swiss Turning solved our micro-component challenge. Their ±.0002" accuracy transformed our entire product line."

James Reichert

"As an aerospace supplier, finding a reliable custom metal fabrication prototype partner is critical. Criterion delivers mission-ready prototypes with FDA and ITAR credentials we demand."

Michael Torres

"Our defense project had aggressive timelines. Criterion's CNC Turning capability turned around complex geometry parts in days without compromising quality. Exceptional responsiveness."

Colonel Robert Adams

"Criterion's ISO 13485 certification and no-charge inspection documentation gave us complete compliance confidence. Every certificate of conformance was accurate and comprehensive."

Patricia Winters

"Twenty years of partnership with Criterion—they've grown with us through medical device transitions, always delivering consistent 5-axis CNC milling precision when it matters most."

Vincent Moretti

"Their Global Advantage CMM with PC-DMIS software inspection validated every micro-feature in our photonics housings. Technical excellence and attention to detail unmatched."

Dr. Lisa Nakamura

"As a competitor evaluating vendors, Criterion's custom metal fabrication prototype capabilities position them as the industry standard. Woman-owned, ISO certified, ITAR-registered—complete package."

Howard Kellerman
The Criterion Difference

Why Choose Criterion Precision Machining?

Over 70 years of precision machining excellence serving mission-critical industries.

Production-Intent Prototyping

Same machines, same standards as full production - seamless transition to volume manufacturing.

Mission-Critical Expertise

Specialized in 'No Failure' sectors including medical devices, aerospace, defense, and photonics industries.

Advanced Quality Systems

ISO 13485 and ISO 9001 certified with Global Advantage CMM and optical inspection capabilities.

Micro-Precision Capabilities

Tight tolerances down to ±.0002" with expertise in complex geometries and challenging materials.

Meet The Criterion Team

Experienced professionals dedicated to precision manufacturing excellence.

Tanya DiSalvo, President of Criterion Precision Machining

Tanya DiSalvo

President

As the third-generation owner of Criterion Precision Machining, Tanya DiSalvo leads a woman-owned business that has evolved from a general machine shop founded in 1953 into a specialized precision manufacturing company. Under her leadership, Criterion has focused exclusively on serving 'No Failure' industries including medical devices, aerospace, defense, and photonics. Tanya has guided the company's investment in advanced CNC technology, quality systems, and certifications including ISO 13485 and ISO 9001. Her vision has transformed Criterion into a trusted partner for mission-critical components where precision and reliability are paramount. She champions the company's commitment to tight tolerances, advanced materials expertise, and production-intent prototyping that bridges the gap between design and full-scale manufacturing.

Mike Pinchot, Estimator/Project Manager at Criterion Precision Machining

Mike Pinchot

Estimator/Project Manager

Mike Pinchot brings extensive experience in project management and estimation for precision machining projects across medical device, aerospace, defense, and photonics industries. As Estimator and Project Manager, Mike works closely with clients to understand their prototype requirements and develop comprehensive project plans that ensure successful outcomes. His expertise spans complex geometries, challenging materials like titanium and specialty alloys, and the unique requirements of production-intent prototyping. Mike coordinates with engineering teams to optimize manufacturability while maintaining the exacting tolerances and quality standards that Criterion's mission-critical industries demand. His attention to detail and deep understanding of advanced manufacturing processes ensures that every prototype project moves smoothly from concept through final inspection and documentation.

Kelly Marflak, Quality Manager at Criterion Precision Machining

Kelly Marflak

Quality Manager

Kelly Marflak oversees Criterion's comprehensive quality assurance program, ensuring that every prototype meets the exacting standards required by medical device, aerospace, defense, and photonics industries. As Quality Manager, Kelly manages the company's advanced inspection capabilities including the Global Advantage CMM with PC-DMIS software, OASIS Optical Automatic Smart Inspection System, and multiple Keyence measuring systems. Her expertise ensures compliance with ISO 13485 and ISO 9001 standards while maintaining the tight tolerances down to ±.0002" that define Criterion's precision capabilities. Kelly works closely with manufacturing teams to implement quality checkpoints throughout the prototyping process, providing detailed inspection reports and certificates of conformance that validate prototype performance. Her commitment to quality excellence ensures that clients receive prototypes that accurately represent production-ready components and provide meaningful data for design validation.

Frequently Asked Questions

What is production-intent prototyping and how does it differ from regular prototyping?

Production-intent prototyping uses the same machines, processes, and inspection equipment as full production runs. This ensures seamless transition to volume manufacturing with no need to reprogram or re-qualify, providing more accurate performance data than traditional prototyping methods.

What industries do you specialize in for prototype fabrication?

What tolerances can you achieve on prototype components?

What materials can you work with for prototype fabrication?

How long does the prototype development process typically take?

What quality certifications do you maintain for prototype work?

Can you handle both simple and complex prototype geometries?

Do you provide inspection documentation with prototype deliveries?

Ready to Start Your Prototype Project?

Connect with our engineering team to discuss your custom metal fabrication prototype requirements.

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

WBENC membership logo

WBENC Member

Women's Business Enterprise National Council certified

Ready to Transform Your Design Into Reality?

Get a comprehensive quote for your custom metal fabrication prototype project with detailed specifications and timeline.

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