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.

CNC Machining is subtractive manufacturing performed on computer-numerically controlled machine tools. Toolpaths generated from CAM drive multi-axis milling, turning, and mill-turn equipment to remove material accurately and repeatably. The approach enables tight tolerances, stable process capability, and scalable automation for prototypes through production across metals and engineering plastics.

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.

Computer-numerical-controlled (CNC) laser cutting concentrates a high-energy fiber or CO₂ laser beam—typically 1 kW – 20 kW—onto sheet, plate or tubing to melt, burn or vapor-cut metals, plastics and composites. Kerf widths average 0.008 – 0.012 in (0.20 – 0.30 mm) with positional repeatability of ±0.001 in (±0.025 mm). Dynamic focus, nitrogen assist gas and bevel-head options enable micro-features, weld-prep chamfers and near-burr-free edges while eliminating hard tooling and minimizing the heat-affected zone (HAZ).

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 & Joining encompasses thermal-fusion and solid-state techniques that permanently unite metal (and some plastic) components. Processes include arc welding (MIG/GMAW, TIG/GTAW, Stick/SMAW, FCAW), resistance welding (spot, seam, projection), high-energy beam welding (laser, electron-beam), solid-state options (friction-stir, explosion, diffusion), and low-temperature joining such as brazing and soldering. Proper joint design, filler-metal selection, heat input control, and post-weld inspection are critical to achieving the required mechanical and metallurgical properties.

Welding & 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 components and assemblies for aerospace and defense applications, supporting mission-critical systems with high-accuracy parts produced under AS9100D certification.

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 and assembly of automotive and transportation components, delivering high-quality parts for passenger vehicles, commercial trucks, and rail systems to meet stringent industry standards.

The design and production of large‐scale machinery, automation systems, and heavy equipment for industrial applications, where reliability and performance are paramount. Adherence to ISO, ANSI, and other applicable standards supports continuous operation under high‐stress conditions, with custom‐engineered systems often required.

Industrial Machinery & Heavy Equipment

C.B. Kaupp & Sons Inc. fabricates and assembles industrial machinery and heavy equipment components using advanced precision machining and fabrication techniques to ensure durability and performance in demanding industrial environments.

Engineering, integration, and production of articulated, SCARA, delta, and gantry robots—plus end-of-arm tooling and safety controls—for automated welding, assembly, pick-and-place, and inspection tasks. Compliance with ISO 10218 and ANSI/RIA R15.06 ensures safe, high-throughput operation across diverse manufacturing environments.

Industrial Robotics & Automation Systems

C.B. Kaupp & Sons Inc. engineers and integrates automation systems and robotic components, including precision-machined parts and assemblies, to enhance manufacturing efficiency and automation capabilities across industries.

High-volume manufacturing of household appliances, personal care devices, and durable consumer products. UL / CE safety, energy-efficiency targets, and cost-optimized injection molding and assembly lines meet global retail quality expectations.

Consumer Goods & Appliances

C.B. Kaupp & Sons Inc. manufactures precision-machined components and assemblies for consumer goods and appliances, ensuring product reliability and performance through expert fabrication and assembly services.

Structural steel, prefabricated assemblies, HVAC modules, and envelope systems supplied to residential, commercial, and infrastructure projects. ASTM / ICC code compliance and BIM-ready data enable efficient, high-quality building delivery.

Construction Products & Building Materials

C.B. Kaupp & Sons Inc. delivers custom fabrication and assembly of structural and mechanical components for construction products and building materials, supporting architectural and infrastructure projects with precision metalworking.

C.B. Kaupp & Sons Inc. is a fourth-generation family-owned manufacturer specializing in precision CNC machining, hydroforming, laser cutting, and metal spinning. Established in 1924, the company serves aerospace, automotive, military, and government sectors with high precision metal components. Their advanced capabilities include 5-axis milling, solid model integration, and work with exotic alloys such as Haynes®, Nimonic, Inconnel®, and titanium. Certified to ISO 9001:2015 and AS9100D standards, Kaupp ensures stringent quality control with microscopic inspections and a full-service approach from prototype to production. Their Maplewood, NJ facility features in-house tool and die production, stocked metals, and a commitment to tight tolerances and fast lead times.

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

This 50,000 sq ft manufacturing facility in Maplewood, NJ, serves as the headquarters for C.B. Kaupp & Sons Inc. It houses advanced CNC machining centers, hydroforming presses, laser cutting equipment, and in-house tool and die production. The facility supports aerospace and automotive manufacturing with stocked metals and tools for rapid prototyping and production. Proximity to major interstates and ports facilitates efficient supply chain operations.

Family-owned precision CNC machining and hydroforming specialist serving aerospace and automotive industries since 1924.

Kaupp

Precision CNC Machining & Hydroforming

Precision CNC Machining

Processes & Services

Business Entity

Technical Capabilities

Locations & Facilities

Reviews & Ratings