For 75+ years, leading manufacturers of pressure gauges, sensors, and measurement systems have trusted us to deliver the intricate components that ensure their instruments perform flawlessly. Our expertise in tight-tolerance machining and quality control processes has made us a preferred partner for instrumentation manufacturers, where component precision directly impacts measurement accuracy and device reliability. From prototype development through full-scale production, we help you maintain the exacting standards your measurement and control systems demand.
We stand out by combining state-of-the-art precision machining with seamless supply chain management, so you never miss a deadline.
Cut your lead times
Our supplier network and supply chain management processes ensures your parts are ready when you need them.
Precision you can rely on
We maintain the highest quality standards, so you can know that every batch of parts will meet your exact specifications.
Scale with confidence
Whether you need prototypes or millions of parts, our scalable production allows you to meet increasing demand.
When measurement accuracy comes down to microns, every component matters. Our precision machining capabilities deliver the intricate parts at the heart of your measurement systems - from pressure sensor housings and gauge components to precision probe assemblies. Understanding that each measurement device has unique requirements, we work closely with your engineering team to optimize designs for manufacturability while maintaining the strict tolerances that ensure measurement accuracy. Whether you're developing new instrumentation or improving existing devices, our expertise in manufacturing high-precision components helps you deliver measurement tools your customers can trust.
Your measurement devices demand more than precision machining alone. From specialized surface finishes that enhance sensor sensitivity to protective coatings that ensure long-term stability, we manage all critical secondary operations. Our established network of partners helps us deliver complete solutions including: Surface treatments, precision engraving, protective plating and anodizing for corrosion resistance, and heat treating. By coordinating all secondary processes, we eliminate the complexity and quality risks of managing multiple vendors. You get fully finished components ready for your assembly line - backed by comprehensive documentation.
By managing both production and inventory, we reduce complexity in your supply chain. You’ll get the right parts when you need them, improving your production flow and minimizing disruptions.
With over 75 years of precision machining excellence, we deliver custom components that meet the most demanding specifications. From prototype development to multi-million piece orders, our ISO:9001 certified facility specializes in handling complex, high-difficulty work across all metal alloys.
Our commitment to quality, combined with extensive machining capabilities, ensures your parts and components are manufactured to the highest standards with competitive lead times.
Our advanced vertical and horizontal milling centers with up to 6-axis capabilities deliver the complex geometries critical for precision measurement devices. We specialize in manufacturing sensor housings, instrument bodies, and calibration fixtures where superior surface finish and tight tolerances are essential. Our expertise ensures your measurement devices maintain consistent accuracy and reliable performance across their entire operating range.
Our automated multi-spindle machines process bars up to 1-5/8" and chucking to 6", delivering high-volume precision components critical for measurement instruments. We specialize in manufacturing repeatable, tight-tolerance parts for pressure gauges, sensors, and precision instruments where consistency is essential. Our expertise ensures your production lines maintain quality standards through reliable, high-volume component delivery.
Our advanced CNC turning centers handle bars up to 4" and chucking to 20" diameter, delivering precision components critical for measurement systems. We specialize in manufacturing instrument housings, probe components, and precision gauge parts where concentricity and surface finish are essential. Our expertise ensures your measurement devices maintain optimal accuracy in demanding applications.
Our precision Swiss turning centers process bars up to 7/8" diameter and lengths to 4", delivering the intricate components critical for precision instruments. We specialize in manufacturing small, complex parts for sensors, probes, and calibration devices where tight tolerances and superior finishes are essential. Our expertise ensures your miniature components maintain reliable measurement accuracy and consistent performance.
Learn more about our precision manufacturing services →
High Precision CNC Machining
Perfect for complex measurement components used in harsh environments.
Inventory Management
Stay on schedule with just-in-time delivery and on ensuring stock availability when you need it.
Prototyping and Low-Volume Runs
Ideal for testing and development phases.
Limitless Scalability
Our manufacturing systems provide you with a limitless solution that won’t limit your growth.
Extensive Supplier Network
Our strong network ensures we can source the best components and materials.
Proudly U.S. Manufactured
Spex is ISO:9001 certified and maintains high quality standards, and faster turnaround times.
We'd love to hear from you!
Scalable production
Short lead times
Fair prices
ISO-9001 certified
Secondary processes
Range of materials
On-time delivery
75+ years in business
Advanced CNC machining
Rapid prototyping
We use process controls, precision tooling, and in-process inspections to ensure every part in a production run meets the same specifications. For measurement and instrumentation components, consistency is critical to calibration and accuracy, so we maintain tight tolerances and document quality checks throughout the run. Whether producing hundreds or tens of thousands of parts, we use the same level of precision on every piece.
Yes. Many measurement and instrumentation components operate in environments where temperature fluctuations can affect accuracy. We select materials with known thermal expansion properties—such as specific stainless steel grades or specialty alloys—and machine them to precise tolerances. This combination ensures that the part maintains dimensional stability and continues to perform reliably even when exposed to temperature extremes.
Absolutely. We can incorporate part numbers, calibration marks, serial numbers, or branding directly into the component using engraving or laser marking. This ensures permanent, legible identification without affecting the function of the part. For measurement tools, this is especially important for traceability and calibration record-keeping.
Yes. While many measurement components are made from stainless steel, brass, or aluminum, we also machine non-metallic materials such as certain plastics and composites. This flexibility allows us to produce housings, fittings, or insulation components that meet your performance requirements, whether the application requires strength, corrosion resistance, or electrical insulation.
To provide the most accurate quote, please share detailed part drawings or CAD models, specify the material, required tolerances, desired quantity, any critical features, and details on necessary finishing operations (like polishing, plating, or engraving). The more detail provided, the better we can tailor a precise and competitive quote.
