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35 Years
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Emergency
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Precision CNC Machining Services in Wisconsin
Founded in 1991, ARZ Machining has established itself as a trusted provider of precision CNC machining services. Originally a family-owned operation, the company underwent significant transformation in 2007 when long-time employees took ownership, investing in modern equipment, advanced CAD/CAM software, and a larger facility to enhance efficiency and quality. Our team of skilled professionals brings decades of combined experience in CNC machining, programming, and operations management, supported by state-of-the-art technology including 4-axis milling centers, CNC turning equipment, and 3D printing capabilities. We specialize in delivering high-precision components for industries ranging from aerospace and defense to healthcare and agriculture, with a focus on lean manufacturing practices that reduce costs and improve lead times. Our commitment to continuous improvement is demonstrated through integrated shop management systems, inventory control solutions, and value-added secondary services like anodizing, welding, and laser engraving. With expertise in handling complex geometries and diverse materialsfrom titanium and stainless steel to engineering plasticswe provide end-to-end manufacturing solutions that meet exacting tolerances of 0.0001.

Our customer-centric approach emphasizes transparent communication, flexible delivery schedules, and technical support for part design optimization. Recognizing that our workforce drives success, we maintain a collaborative environment that values innovation and craftsmanship. Serving engineers, procurement professionals, and fabrication shops nationwide, we remain dedicated to exceeding expectations through precision engineering and operational excellence.
Services
CNC Turning CNC Milling CNC Sawing Laser Engraving Design Services
Details
  • Year established: 1991
Highlights and features
  • We offer 30+ years of precision machining expertise since 1991.
  • Our modern facility features 4-axis CNC milling and tight-tolerance turning capabilities.
  • We provide integrated design-to-production workflows with 3D printing and CAD/CAM systems.
  • Our team includes certified professionals with specialized CNC programming expertise.
  • We maintain lean manufacturing practices that reduce costs and improve delivery times.
What people say
Exceptional precision machining Reliable on-time delivery Technical expertise in complex parts Excellent customer support Quality secondary services
Services
CNC Turning
Our CNC turning services produce complex cylindrical components with tolerances down to 0.0005. Using advanced lathes with 2-axis capabilities, we machine parts up to 10" diameter from metals and plastics. This service supports industries requiring high-precision components for hydraulic systems, firearms, and industrial machinery.
CNC Milling
We offer 3-4 axis CNC milling for complex shapes with tolerances down to 0.0005. Our 40" x 20" x 25" capacity machines handle parts up to 500lbs, serving aerospace and defense sectors needing precision engine components and structural parts.
CNC Sawing
Our CNC sawing service cuts round, square, and rectangular stock up to 10" with 0.010 tolerances. This high-efficiency process prepares materials for secondary machining operations across industrial applications.
Laser Engraving
We provide 30W fiber laser engraving for permanent markings on metal components. With 1200dpi resolution, this service creates part numbers, barcodes, and logos on steel, aluminum, and brass components.
Design Services
Our design team offers CAD modeling, drawing creation, and part optimization using SolidWorks and MasterCAM. This service streamlines manufacturing processes while maintaining functional requirements for complex components.
People
Kenny Bosch
President/Operations Manager
With 19 years in CNC machining and 11 in management, Kenny leads operations at ARZ Machining. He specializes in CAD/CAM programming and strategic planning while managing quoting and quality assurance.
Tim Paegelow
Production Manager
Tim brings 20 years of CNC machining expertise and 11 years in management to ARZ Machining. As Production Manager, he oversees scheduling, material procurement, and quality control processes.
Questions
What CNC machining services do you offer?
We provide CNC turning, milling, sawing, laser engraving, and design services for precision components.
What industries do you serve?
We support aerospace, defense, healthcare, automotive, agriculture, and industrial manufacturing sectors.
Do you handle emergency production needs?
Yes, we offer rush services for urgent machining requirements with expedited lead times.
What materials can you machine?
We work with metals like titanium, stainless steel, aluminum, and engineering plastics including PEEK and Delrin.
Do you provide design assistance?
Yes, our team offers CAD design, 3D modeling, and part optimization services to improve manufacturability.
What quality standards do you maintain?
We uphold strict tolerances down to ±0.0001 through advanced equipment and lean manufacturing practices.