Precision CNC Machining at C.B. Kaupp & Sons Inc. encompasses advanced computer-controlled milling and turning processes that deliver tight tolerances and complex geometries. Utilizing multi-axis CNC equipment, the company produces high-accuracy metal and plastic components with superior surface finishes, supporting both prototype and high-volume production runs.

Machining encompasses a variety of manufacturing processes aimed at shaping and removing material from a workpiece. This includes both computer-controlled processes, such as CNC milling, turning, and routing, as well as non-traditional methods like Electrochemical, Chemical, and Photochemical Machining.

CNC Machining

CNC Milling removes material with rotating cutters under precise multi-axis computer control, producing complex prismatic or sculpted parts with positional accuracy to ±0.005 mm and surface finishes ≤ Ra 0.4 µm. Machines span 3-axis vertical mills, 4-axis horizontals with pallet changers, and full 5-axis trunnion or gantry platforms, supporting everything from rapid prototypes to lights-out production in metals, plastics, and composites.

CNC Milling

CNC Turning uses computer-controlled lathes to rotate bar, billet, or cast blanks while single-point cutting tools remove material. The process excels at producing concentric OD/ID features, tapers, threads, grooves, and complex contours with tight positional accuracy. Modern CNC lathes support live tooling, Y-axis interpolation, sub-spindle part transfer, and bar-feed automation—enabling complete, high-volume production of precision cylindrical components in metals or plastics.

CNC Turning

3-Axis Vertical Machining uses a vertical-spindle CNC mill with linear X-, Y-, and Z-motions to produce prismatic parts, slots, pockets, drilled holes, and 2.5-D contours. Tool changers, rigid tapping, and on-board probing enable accurate, repeatable machining of small- to mid-sized components with positional accuracy to ±0.010 mm and surface finishes to Ra ≤ 0.8 µm.

3-Axis Vertical Machining

Precision CNC Machining

Hydroforming is a specialized metal forming process using high-pressure hydraulic fluid to shape ductile metals into complex, lightweight, and structurally strong components. C.B. Kaupp & Sons Inc. applies hydroforming techniques to produce seamless tubular parts and intricate shapes with excellent dimensional control and surface quality.

Forming encompasses all manufacturing operations that plastically deform metal or other ductile materials into the desired geometry without adding or removing material. Typical methods include bending, rolling, stamping, deep drawing, spinning, extrusion, forging, and emerging coil-processing techniques. Processes rely on controlled compressive forces to drive material flow while maintaining dimensional accuracy and mechanical integrity.

Forming

Spinning shapes metal by rotating it and forming it around a tool, commonly used for conical or cylindrical parts.

Spinning

Hydroforming

Laser Cutting at C.B. Kaupp & Sons Inc. employs high-powered lasers to achieve precise, clean cuts on a variety of metals and materials. This non-contact process enables intricate shapes and fine details with minimal thermal distortion, supporting both prototyping and production needs with fast turnaround times.

Laser Cutting utilizes a high-powered laser to cut materials, offering high precision and speed. It's often used for complex shapes and fine cuts, including multi-axis configurations that enable more complex geometries.

Laser Cutting

Metal Spinning involves rotating a metal blank at high speed while forming it over a mandrel to create symmetrical, round parts such as cones, cylinders, and domes. C.B. Kaupp & Sons Inc. leverages this technique to produce precision components with smooth finishes and consistent wall thicknesses, ideal for aerospace, lighting, and industrial applications.

Metal Spinning

C.B. Kaupp & Sons Inc. offers comprehensive secondary operations including welding and brazing to join metal components with high strength and precision. Their capabilities cover multiple welding techniques and brazing processes, ensuring robust assemblies for complex manufacturing requirements.

Welding and Joining processes fuse metal parts together using heat, pressure, or both. Common methods include MIG and TIG welding, soldering, and brazing.

Welding and Joining

Brazing joins metals by melting a filler alloy with a lower melting point than the base metals, effective for leakproof or complex assemblies.

Brazing

Arc Welding uses an electrical arc to fuse metals, typically employing a consumable or non-consumable electrode. This technique is widely used for structural and industrial applications, offering strong, reliable welds on a variety of metals.

Arc Welding

Laser Beam Welding uses a focused laser to fuse materials, allowing for high-precision, high-speed welding of thin metals in automotive, aerospace, and electronics.

Laser Beam Welding (LBW)

Gas Welding uses a flame produced by oxygen and acetylene to melt and fuse metals, commonly used in repair work and for thinner sections.

Gas Welding (Oxy-Acetylene Welding)

Spot Welding fuses overlapping metal surfaces via resistive heat from an electric current, frequently used in automotive assembly.

Spot Welding

Secondary Operations: Welding and Brazing

A global standard for quality management systems focusing on continuous improvement and customer satisfaction.

ISO 9001:2015

The design, manufacturing, and integration of high‐precision components, systems, and subsystems for commercial aircraft and military platforms, with emphasis on meeting stringent certifications such as AS9100, ITAR, and MIL‐STD. Priorities include advanced materials, rigorous quality assurance, and robust engineering to ensure reliability in mission‐critical applications.

Aerospace & Defense

C.B. Kaupp & Sons Inc. manufactures precision-machined aerospace components using advanced CNC and 5-axis machining technologies, supporting critical applications in commercial and military aircraft systems requiring stringent tolerances and high reliability.

The design, manufacturing, and assembly of components and systems for passenger cars, commercial and off-highway vehicles, rail rolling stock, and emerging electric/Autonomous mobility platforms. High-volume production, IATF 16949 compliance, JIT supply chains, and continuous innovation ensure reliable powertrains, safety-critical systems, and cost-efficient delivery across a broad transportation landscape.

Automotive & Transportation

C.B. Kaupp & Sons Inc. provides precision machining, fabrication, and assembly of automotive components, including complex parts for passenger and commercial vehicles, ensuring quality and efficiency for powertrain and safety-critical systems.

The design, fabrication, and assembly of diverse products across multiple end‐use industries or specialized, project‐based needs. Emphasis is on versatility, custom solutions, and broad expertise to handle unique or varied manufacturing projects outside of more narrowly defined sectors.

General Manufacturing

C.B. Kaupp & Sons Inc. delivers precision-manufactured industrial hardware and fasteners through CNC machining and fabrication, serving government sectors with components essential for durable and reliable equipment assemblies.

The development, manufacturing, and supply of precision-engineered medical systems, devices, and critical components, including diagnostic equipment, surgical instruments, implantable devices, laboratory systems, and precision medical components. Emphasizes adherence to ISO 13485 and FDA QSR standards, traceability requirements, sterile processing, rigorous validation, and use of biocompatible materials such as titanium, stainless steel, and medical-grade polymers to ensure patient safety and clinical effectiveness across global healthcare settings.

Medical Devices & Healthcare Equipment

C.B. Kaupp & Sons Inc. specializes in precision machining and assembly of medical device components, including surgical instruments and implantable parts, adhering to stringent quality standards for healthcare applications.

C.B. Kaupp & Sons Inc. is a fourth-generation family-owned precision metal manufacturing company established in 1924, specializing in high precision CNC machining, hydroforming, and laser cutting. Serving aerospace, automotive, government, and private sectors, Kaupp offers prototype to production services with stringent tolerances and quality inspections at every step. Their advanced capabilities include 5-axis milling, CNC turning, and metal spinning using materials such as titanium, stainless steel, and exotic alloys. Certified to ISO 9001:2015 and AS9100D standards, Kaupp maintains a legacy of quality, speed, and accuracy with a fully integrated facility in Maplewood, NJ.

The headquarters facility in Maplewood, NJ spans approximately 50,000 square feet, housing advanced CNC machining centers including 5-axis milling and CNC turning machines. It supports full-service metal forming including hydroforming, laser cutting, metal spinning, and secondary operations such as welding and brazing. The site is strategically located for efficient supply chain access and features ISO 9001:2015 and AS9100D certifications ensuring high-quality aerospace and industrial manufacturing standards.

C.B. Kaupp & Sons Inc. Headquarters

Family-owned precision CNC machining, hydroforming, and laser cutting specialists since 1924.

Kaupp

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