CNC Milling
Multi-axis CNC milling for complex spinal implant geometries—interbody cages, plates, and housings—machined to tight tolerances with consistent repeatability across every production run.
Spinal implants demand zero tolerance for error—every micron matters when a component is implanted in the human spine. Criterion Precision Machining delivers ISO 13485-certified, tight-tolerance machining of spinal implant components using advanced Swiss turning, CNC milling, and multi-axis CNC turning. From titanium pedicle screws to PEEK interbody cages, we machine the parts that surgeons and patients depend on.

Comprehensive precision machining solutions for spinal implant components, from complex geometries to full quality documentation.
Multi-axis CNC milling for complex spinal implant geometries—interbody cages, plates, and housings—machined to tight tolerances with consistent repeatability across every production run.
High-precision Swiss turning for small-diameter spinal components such as bone screws and fixation pins, achieving tolerances down to ±.0002" in titanium, stainless steel, and specialty alloys.
Precision CNC turning for cylindrical and complex-geometry spinal implant parts, delivering smooth surface finishes and tight tolerances in medically compliant materials including PEEK and titanium.
Production-intent prototyping for spinal implant components machined on the same equipment as final parts, enabling seamless transition to full-volume production without re-qualification.
ISO 13485-compliant multi-point inspection using CMM, OASIS optical systems, and Keyence measuring technology, with full documentation including Certificates of Conformance at no additional charge.
Skilled machining of medically approved materials including Grade 5 titanium, 316L stainless steel, cobalt-chrome alloys, and PEEK—materials most commonly specified for spinal implant components.
Spinal implant components operate in one of the most demanding environments in the human body. Criterion Precision Machining brings over 70 years of precision manufacturing expertise and ISO 13485 certification to every spinal component order—machining titanium pedicle screws, PEEK interbody cages, rod connectors, and fixation plates to tolerances as tight as ±.0002". Our FDA-registered facility and rigorous multi-point inspection process ensure every part ships fully documented and ready for device assembly.

See how Criterion delivers flawless spinal implant components to the medical device industry's most demanding customers.
When a spinal implant component cannot fail, you need a machining partner with the certifications, equipment, and culture to match.
Our ISO 13485 and ISO 9001 certifications confirm our quality management system meets the medical device industry's most rigorous standards.
Our Swiss turning and multi-axis milling capabilities hold tolerances as tight as ±.0002", essential for implantable spinal device components.
Our FDA registration and ITAR compliance ensure spinal implant components are manufactured within fully regulated, audit-ready processes.
Founded in 1953 and now in its third generation of ownership, Criterion brings decades of precision machining heritage to every medical device order.
Experienced professionals dedicated to precision, quality, and mission-critical manufacturing.

President
As the third-generation owner of Criterion Precision Machining, Tanya DiSalvo leads one of Northeast Ohio's most respected precision machining companies. Under her leadership, Criterion has earned ISO 13485 and ISO 9001 certifications, achieved FDA and ITAR registration, and deepened its specialization in medical device, aerospace, defense, and photonics industries. Tanya is committed to maintaining the company's founding legacy of quality and precision while driving investment in advanced technology and talent. As a WBENC-certified woman business owner, she champions diversity and operational excellence, ensuring Criterion remains a trusted partner for manufacturers who cannot afford failure in their supply chain.

Estimator / Project Manager
Mike Pinchot serves as Estimator and Project Manager at Criterion Precision Machining, playing a central role in translating customer requirements into accurate, competitive quotes and on-time production schedules. With deep knowledge of precision machining processes including Swiss turning, CNC milling, and multi-axis CNC turning, Mike ensures that every spinal implant component project is scoped correctly, priced transparently, and executed to specification. He is the key point of contact for new customers exploring Criterion's medical device machining capabilities and for existing customers managing ongoing production programs, providing continuity and technical clarity from initial inquiry through final delivery.

Chief Financial Officer
David Glass serves as Chief Financial Officer at Criterion Precision Machining, overseeing the financial strategy and operational health of the company. With a focus on sustainable growth, David ensures that Criterion's investments in advanced machining technology, quality systems, and workforce development are aligned with the company's long-term mission of serving mission-critical industries. His financial oversight contributes directly to Criterion's ability to maintain competitive pricing, invest in ISO-compliant quality infrastructure, and deliver consistent value to medical device OEMs and contract manufacturers relying on Criterion for spinal implant and other precision components.

Quality Manager
Kelly Marflak is the Quality Manager at Criterion Precision Machining and is responsible for maintaining the company's ISO 13485 and ISO 9001 quality management systems. Kelly oversees the full scope of Criterion's inspection processes, including the Global Advantage CMM, the OASIS Optical Automatic Smart Inspection System, and Keyence multi-dimensional measuring platforms. For spinal implant component customers, Kelly's role is critical—ensuring every part shipped meets the exacting dimensional, surface finish, and documentation requirements mandated by medical device regulations. Her leadership ensures that Certificates of Conformance and final inspection reports are accurate, complete, and delivered with every order.

Internal Systems Manager
Kellyanne Gottschalk manages Criterion's internal systems and operational infrastructure, including the company's ProShop ERP platform that drives production planning, job tracking, and documentation workflows. Her work ensures that every spinal implant component order—from initial setup through final inspection—is tracked with full traceability and managed in compliance with ISO 13485 requirements. Kellyanne's role is foundational to Criterion's ability to deliver consistent quality at scale, providing the operational backbone that allows the production and quality teams to focus on machining precision components without administrative friction.

Customer Service
Nilda Feliciano is Criterion Precision Machining's customer service representative and serves as a vital link between the company's production capabilities and its medical device customers. For spinal implant component programs, Nilda handles order management, delivery coordination, and customer communications, ensuring that timelines are met and any issues are resolved quickly. Her attentiveness and organizational skills help Criterion maintain the high levels of customer satisfaction expected by medical device OEMs who depend on consistent, on-time delivery of machined spinal components for their device assembly operations.

Office Administrator
Bonnie Paletta serves as Office Administrator at Criterion Precision Machining, supporting the day-to-day administrative operations that keep the company running smoothly. Her work ensures that vendor communications, internal documentation, scheduling support, and office logistics are handled with accuracy and professionalism. For a precision machining company operating in regulated industries like medical devices, having a reliable and detail-oriented office administrator is essential to maintaining the organizational discipline that complements Criterion's commitment to quality and on-time delivery of spinal implant and other mission-critical components.
What materials does Criterion machine for spinal implant components?
Criterion machines medically approved materials including Grade 5 titanium (Ti-6Al-4V), 316L stainless steel, cobalt-chrome alloys, and PEEK—the materials most commonly specified for pedicle screws, interbody cages, rods, and fixation plates in spinal implant devices.
Is Criterion ISO 13485 certified for medical device machining?
What tolerances can Criterion hold on spinal implant components?
Does Criterion provide prototyping for spinal implant components?
What quality documentation does Criterion provide with spinal implant component orders?
What types of spinal implant components can Criterion machine?
Is Criterion a woman-owned business?
How do I request a quote for spinal implant component machining?
Speak directly with our engineering and estimating team for a no-obligation consultation.
Medical device quality management certification ensuring implant-grade manufacturing standards.
Global quality management standard confirming consistent, reliable precision manufacturing processes.
Women's Business Enterprise National Council certification recognizing Criterion as a woman-owned business.
Submit your drawings, material specifications, and volume requirements and our estimating team will respond with a detailed, competitive quote. ISO 13485-certified. FDA registered. No failure accepted.
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
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