Business Details
31 Years
experience
Precision CNC Machining Services in San Jose
JNC Machining has been a trusted partner for precision manufacturing in San Jose, CA since 1995. As a family-owned business, we combine over three decades of hands-on experience with advanced CNC technology to deliver high-quality components for aerospace, medical, automotive, and electronics industries. Our team specializes in CNC milling, turning, and screw machining, producing parts with tight tolerances from metals and plastics.We prioritize customer relationships and technical excellence, offering scalable solutions from prototypes to high-volume production. With local advantages like fast turnaround and on-site collaboration, we serve both Silicon Valley businesses and clients nationwide. Our commitment to quality assurance ensures every component meets strict industry standards, supporting critical applications across diverse sectors.
Services
CNC Milling
CNC Turning
Screw Machining
Prototyping
Aerospace Machining
Details
- Year established: 1995
Highlights and features
- 30+ years of precision machining experience
- Tight tolerances for critical aerospace components
- Fast turnaround with local San Jose advantage
- Material expertise in metals and engineering plastics
- Family-owned commitment to customer relationships
What people say
Excellent work
Precision machining
Friendly and accommodating
Recommend to anyone
Precision components
Services
CNC Milling
Our CNC milling services create complex metal and plastic components with tight tolerances. Using multi-axis equipment, we produce aerospace brackets, medical device housings, and electronics components. Prototyping through production runs ensure consistent quality for industries requiring precision-critical parts.
CNC Turning
CNC turning services manufacture cylindrical parts like shafts and bushings with exceptional accuracy. We work with stainless steel, aluminum, and exotic alloys to meet aerospace and medical industry standards. Capabilities include threading, grooving, and high-volume production runs.
Screw Machining
Screw machining produces high-volume, small precision components for aerospace fasteners and electronic connectors. Our automated lathes ensure consistent quality with tolerances measured in thousandths of an inch, supporting both prototype development and mass production needs.
Prototyping
We offer rapid prototyping services for testing new designs before production. Using CNC machining, we create functional prototypes from production-grade materials, enabling engineers to validate specifications and accelerate time-to-market for complex components.
Aerospace Machining
Specialized aerospace machining services produce flight-critical components meeting strict industry standards. We manufacture lightweight, durable parts from aluminum and titanium alloys, with full traceability and quality documentation required for aviation and defense applications.
Questions
What industries do you specialize in?
We specialize in aerospace CNC machining but also serve medical, automotive, and electronics industries requiring precision components.
What materials can you machine?
We work with aluminum, stainless steel, titanium, brass, copper, and engineering plastics like nylon and Delrin.
Can you handle prototype projects?
Yes, we provide rapid prototyping services to test and refine designs before moving to full production.
Do you serve local businesses only?
While based in San Jose, we serve clients nationwide with fast shipping and local collaboration advantages.
How do I get a quote?
Contact us through our online form or call our office with your project specifications for a fast estimate.
What quality assurance processes do you use?
We follow strict inspection protocols including first article inspection and final quality verification for every order.
Reviews (3)
Tyler Morch
Sep 03, 2019
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I was building a personal project and needed some precision drilling. I knew I could not do this with my tools at home. I found JNC Machining on the internet and paid them a visit. Jesus Castillon (proprietor) stepped away from his work and spent the next 20 minutes looking over my project and asking me detailed questions about what results I wanted. He took a number of measurements and proceeded to the workshop to see if it was at all possible to work with the size stock I presented. He returned and stated he could do it, but it was the end of the day and time was short. After pleading with him
Eugene Prokopenko
Sep 01, 2019
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JNC was able to do a job for me that no one else could. Very friendly and accommodating. Highly recommended!
William Marion
Aug 23, 2019
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Working on a project and needed a couple pieces of steel turned, I called up JNC and was greeted by a super nice and helpful woman. I was immediately transferred to a gentleman named Jose who answered all my questions in and invited me in to take a look at the pieces to be done. Upon arriving, since the pieces were quite small he agreed to take care of it free of charge! The pieces were made exact to spec and met all of my expectations. Will definitely be recommending and coming back.
