CNC Milling
Precision 3-, 4-, and 5-axis CNC milling for complex orthopedic implant geometries. We deliver consistent repeatability and tight tolerances for bone plates, joint components, and implantable device housings.
When a patient's mobility and safety depend on every micron, you need a machining partner with zero tolerance for error. Criterion Precision Machining delivers ISO 13485-certified orthopedic implant components—crafted from titanium, stainless steel, and PEEK—with tolerances down to ±.0002". From prototype to full production, we machine the precision your patients deserve.

From complex multi-axis milling to high-precision Swiss turning, we offer the full spectrum of machining services for orthopedic implant components.
Precision 3-, 4-, and 5-axis CNC milling for complex orthopedic implant geometries. We deliver consistent repeatability and tight tolerances for bone plates, joint components, and implantable device housings.
High-precision CNC turning for cylindrical implant components such as screws, stems, and sleeves. Tolerances down to ±.0002" with smooth surface finishes critical for biocompatibility and implant performance.
Multi-axis Swiss turning for small-diameter, high-complexity orthopedic components. Ideal for micro-sized implant fasteners and intricate features in titanium, stainless steel, and specialty alloys.
Production-intent orthopedic implant prototypes machined on the same equipment as final production runs—ensuring seamless validation, regulatory confidence, and a direct path to full-volume manufacturing.
CMM-based dimensional inspection, OASIS optical measurement, and certified documentation including Certificates of Conformance—meeting the stringent traceability requirements of ISO 13485 and FDA standards.
Skilled machining of biocompatible materials including titanium alloys, cobalt-chrome, PEEK, and medical-grade stainless steels—the materials that define safe, durable orthopedic implant performance.
Orthopedic implants live inside patients for decades. That demands a machining partner who treats every component as mission-critical. Criterion Precision Machining brings over 70 years of precision manufacturing expertise, ISO 13485 certification, and advanced multi-axis machining to produce implant components that meet the tightest dimensional and surface finish requirements. From titanium hip stems to PEEK spinal components, we deliver the accuracy, traceability, and documentation your regulatory submissions and patients require.

We combine seven decades of machining expertise with industry-leading certifications and technology to deliver implant components with zero margin for error.
Our ISO 13485 and ISO 9001 certifications ensure every implant component meets stringent medical device quality management requirements.
We hold tolerances down to ±.0002"—the micro-precision that orthopedic implant fit, function, and patient safety demand.
Founded in 1953 and now in its third generation, Criterion has decades of machining experience serving 'No Failure' medical device industries.
From CMM inspection reports to Certificates of Conformance, we provide the complete documentation trail your FDA submissions and quality audits require.
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.
A machined implant surface refers to the finish achieved through precision CNC processes such as turning or milling, which creates a smooth, controlled topography on the implant. This surface finish is critical for implant fit, reducing stress concentrations, and in some designs, promoting osseointegration. At Criterion, we control surface finish to precise Ra values as specified by your engineering drawings.
Talk to our engineering and quality team for a no-obligation technical consultation.
Medical device quality management system certification for implantable components.
International quality management system standard ensuring consistent process excellence.
Women's Business Enterprise National Council certified woman-owned business.
Share your part drawings, material specifications, and volume requirements. Our team will respond with a detailed quote and manufacturability feedback within one business day.
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.