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.

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 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.

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.

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.

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.

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.

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.

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.
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.
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.