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Business Details
50+ Years
experience
Precision CNC Machining Services in San Jose
B & Z Mfg has been a family-owned precision machining leader since 1960, specializing in ultra-precision CNC machining, multi-axis milling, and turning. With over 60 years of experience, we serve critical industries including medical, aerospace, semiconductor, and military applications. Our 16,000-square-foot facility in San Jose, CA, houses state-of-the-art equipment, including 30+ CNC machines and three Zeiss CMMs, operating 24/7 to ensure timely delivery. ISO 9001:2015 certified, we maintain rigorous quality control with calibrated tools and three full-time inspectors.

Our team combines generational expertise, with machinists trained through decades of hands-on experience, ensuring tight tolerances and repeatable quality. We partner with clients like Agilent Technologies and Honeywell-Measurex, offering solutions from prototyping to high-volume production. Our commitment to innovation and quality has made us a trusted partner for complex machining needs.
Services
Multi-Axis Milling Vertical Milling Microscope Deburring Precision Sawing Surface Grinding Finishing Services Fixture Building Bead Blasting Machined Prototypes CNC Turning
Details
  • Year established: 1960
Highlights and features
  • We offer 60+ years of expertise in ultra-precision machining.
  • Our ISO 9001:2015-certified quality control ensures repeatable accuracy.
  • We operate 24/7 with 30+ CNC machines for fast turnaround.
  • Our team includes multi-generational machinists with specialized expertise.
  • We partner with industry leaders like Agilent and Honeywell-Measurex.
Associations and certifications
  • ISO 9001:2015
Services
Multi-Axis Milling
Our multi-axis milling capabilities enable complex, high-precision components for aerospace and medical industries. Using 5-axis Cad-driven CNC machines with electronic probing, we achieve extreme tolerances down to 0.00001 inches. This service supports rapid prototyping and large-volume production with consistent quality.
Microscope Deburring
Microscope deburring removes microscopic burrs from components requiring surgical precision. Our technicians, with 20+ years of experience, use specialized tools and magnification to ensure flawless surfaces for semiconductor and optical applications. This process guarantees functional integrity and cosmetic perfection.
Surface Grinding
In-house surface grinding provides precise cosmetic finishes for industrial components. Using advanced machinery, we achieve flatness tolerances within millionths of an inch. This service caters to clients needing exact dimensional accuracy and surface integrity for high-performance applications in metrology and electronics.
CNC Turning
Our CNC turning services produce cylindrical components with tight tolerances for military and medical devices. Equipped with Hardinge and Haas lathes, we handle materials from stainless steel to exotic alloys. This service supports both small batches and high-volume runs with automated efficiency.
Quality Assurance
ISO 9001:2015-certified quality assurance includes three Zeiss CMMs and calibrated tools for measurement accuracy. Our three full-time inspectors document every process step, ensuring compliance with industry standards. This service guarantees traceability and reliability for critical components in aerospace and defense sectors.
People
Tom Simpson
President/Owner
Tom Simpson leads B & Z Mfg with decades of machining expertise inherited from his family. His leadership maintains the company's legacy of precision and innovation in CNC machining since 1960.
Brian Van Steenwyk
Vice President and General Manager
Brian Van Steenwyk oversees daily operations with a focus on quality and efficiency. His 20+ years in precision machining ensure B&Z's adherence to ISO 9001:2015 standards and client satisfaction.
Eduardo Luna
QA Manager
Eduardo Luna manages quality assurance, ensuring all components meet strict tolerances. With expertise in measurement systems, he leads inspections using Zeiss CMMs to maintain B&Z's industry-leading standards.
Questions
What industries does B&Z Manufacturing serve?
We serve medical, aerospace, semiconductor, military, and electronics industries with precision-machined components.
Are your services ISO-certified?
Yes, we are ISO 9001:2015 certified with documented quality control processes.
Can you handle complex, high-precision parts?
Our 5-axis CNC machines and experienced team produce parts with tolerances down to 0.00001 inches.
Do you offer prototyping services?
Yes, we provide rapid prototyping and low-volume production for testing and development.
What materials can you machine?
We work with stainless steel, aluminum, brass, copper, plastics, and exotic metals like Kovar and Invar.
How quickly can you complete orders?
Our 24/7 operations and 30+ machines ensure fast turnaround for both urgent and large-volume orders.
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