Production Scale Built for Demanding Supply Chains
Made in the USA @ Globally Competitive Costs
Cox Manufacturing has never conceded the fight to produce high-volume CNC screw machining & machine parts at “globally competitive costs” for precision parts made out of bar stock in the USA. We are known for being an extremely progressive supplier applying and developing the best technology to reliably supply high quality at very competitive costs. Customers have told us we are “indispensable”, their “best performing” supplier, and our customer service is simply “awesome”. For these reasons, we have continued to add additional capacity to support our industry-diverse customers and machine up to 2.7 million precision components every week.
Cox Manufacturing runs over 350 precision turning spindles across three shifts a day, producing more than 2.7 million precision components every week from a single facility in San Antonio, Texas. This is not a capacity figure pulled from a spec sheet. It is what we actually ship, week after week, to customers in defense, aerospace, medical, firearms, and electronics.
For procurement teams and program managers, scale only matters when it is dependable. Cox has spent decades structuring operations around customer delivery schedules, not our own. Our customers run KanBan and JIT programs integrated directly with our production floor. When volume increases, whether planned or not, our three-shift structure and weekend capacity absorb it without passing the disruption downstream.
Our customers have said it directly. One noted: "Our compliments on your 100% on-time and 100% quality success -- this dovetails with our initiative to achieve this level of performance across the supply chain." Another named Cox their "best performing" supplier. Our production model is built to be the kind of supplier that does not require managing.
For customers with DFARS material sourcing requirements, Cox's domestic manufacturing footprint and ITAR registration mean compliance is built into the supply chain from day one. When your program requires traceability, domestic bar stock, and a supplier who understands what a defense contract actually demands, Cox has been filling that role for decades.
High Volume CNC Screw Machining Solutions
- Over 100 Advanced Production Turning Bar Automatics On-line and Ready
- High-end Screw Machines and 12-Axis CNC Mill-Turns matched for optimal production solutions
- Scheduled 3 shifts a day and weekends as needed
- Proprietary Industry 4.0 network to maximize quality and productivity
- Proprietary Patented Advanced Unified Quality Control System
- In-house Custom Tool Design & Manufacturing, using CNC Wire EDM and 5-Axis CNC Grinders
- Industry Leading Workforce Development program and DOL-Certified Apprenticeship
JIT Delivery & Logistics Management
Standing behind the technology are Cox's experts in supply logistics and quality management, assuring each customer’s expectations for timely delivery and product quality are met and exceeded for your high volume screw machine parts order. Added assurance comes from a decades-long track record of delivering custom machined parts on time, so they are ready for use the moment they are needed.
Certifications and Quality
- ISO 9001:2015 certified
- ITAR Registered
- Compliance with DFARS materials sourcing requirements
- Strict compliance with PPAP and Process FMEA for automotive customers
- Industry 4.0 advanced quality system
- Fully compliant with the exacting requirements of our customers
- Skilled in KanBan and other customer driven quality and inventory management systems
- Proprietary 100% automated inspection available
How Cox Holds Tight Tolerances Across Millions of Parts
Producing a precision component once is a tooling success. Producing it two million times a week, to the same tolerance, across multiple machines and three shifts a day, is a systems success. Cox has invested decades and significant engineering resources into building consistent, repeatable processes across the entire production floor.
Our quality infrastructure is built around a proprietary, patented Advanced Unified Quality Control System integrated across the full production network. This is not a checklist applied at the back end of production. It is an Industry 4.0 architecture embedded into every stage of the manufacturing process, monitoring and correcting variance in real time before it has a chance to compound across a high-volume run. For the applications where it matters most, Cox offers 100% automated inspection on every part, not a statistical sample. In defense, medical, and aerospace programs, a single non-conforming part in a production run carries consequences well beyond the cost of the part itself.
Quality control at Cox starts at the tool. Our in-house tool design and manufacturing operation uses CNC Wire EDM and 5-axis CNC grinders to build and maintain our own cutting tools. Most shops work within the limits of off-the-shelf tooling or outsource that decision entirely. Cox engineers tooling to the specific part and material, which produces tighter process control, more predictable tool life, and tolerance windows that stay consistent across long production runs.
Cox holds tolerances to customer specification across brass, stainless steel, aluminum, copper, titanium, and engineering plastics, in bar stock diameters from sub-millimeter to over two inches, at production volumes that would stress lesser quality systems. If your program requires documented PPAP or strict compliance with automotive or aerospace quality standards, that framework is already in place.
High Volume CNC Screw Machining Materials
Industries and Applications
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