About 4M Machine — Family-Owned Precision Machine Shop
Our Story
4M Machine LLC is a family-owned precision machine shop located in Kaukauna, Wisconsin. For more than 20 years, we have built lasting partnerships with manufacturers across industries by combining craftsmanship, modern machining technology, and a dedication to service. While 4M Machine was officially founded two decades ago, our roots run much deeper. Precision machining has been the foundation of our family’s work for over 60 years. That history shapes who we are today: a shop that values accuracy, reliability, and trust.
We started as a small shop with a commitment to doing things right, and over the years we’ve expanded our equipment, facilities, and services to meet the evolving demands of our customers. From reverse engineering and prototyping to full-scale production machining, we remain focused on the same principles—quality parts, delivered on time.
What Makes Us Different
Being family-owned means our reputation is personal. Every part we machine reflects not only on our company but on the name we carry. That’s why we hold ourselves to a higher standard in both quality and service. When customers call us, they don’t deal with layers of bureaucracy or disconnected departments—they speak directly with people who understand their needs and take responsibility for outcomes.
Our difference also lies in versatility. We are equipped to handle a wide range of machining challenges, from producing large parts on our boring bar up to 200 inches in length, to machining intricate features as small as one-half inch. Whether it’s a single prototype, a replacement part that requires reverse engineering, or a full production run, our team has the equipment and expertise to make it happen.
Our Capabilities and Equipment
At 4M Machine, we have invested in high-quality equipment to ensure accuracy and repeatability across all projects. Our machining capabilities include:
- Turning
- Milling (horizontal and vertical)
- Grinding (outside diameter, surface, and Blanchard)
- Welding (MIG and TIG for steel, stainless, and aluminum)
- Straightening
- Keyway Cutting
- Refurbishment
- Reverse Engineering
We also specialize in working with a wide variety of materials, such as aluminum, mild steel, high-carbon steels, stainless steel, brass, bronze, nylon, and plastics. This broad material expertise allows us to meet the diverse needs of industries including aerospace, automotive, oil and gas, industrial manufacturing and food industry.
Our Commitment to Customers
When you work with 4M Machine, you’re not just ordering a part—you’re gaining a partner. We prioritize communication, offering updates at every stage of the process, from initial consultation to final delivery. We know how important deadlines are in manufacturing, which is why we have built our reputation on delivering projects on schedule.
We also stand behind the quality of our work. Our experienced machinists bring decades of knowledge to every job, ensuring that your parts meet or exceed the required specifications. This focus on craftsmanship and consistency is why so many of our customers have trusted us for years, returning with new projects and referrals.
Industries We Serve
Our services reach far beyond Kaukauna. We proudly support clients across Wisconsin and throughout the United States. The industries we serve include:
Aerospace
Precision parts for performance and safety
Automotive
Prototyping, reverse engineering, and production machining
Oil & Gas
Durable, reliable components for demanding environments
Industrial Manufacturing
Replacement parts, production runs, and custom fabrication
Food Industry
Sanitary equipment fabrication, custom food processing parts, and maintenance solutions
No matter the application, our goal is to deliver parts that perform—on time, every time.
FAQs
How long has 4M Machine been in business?
4M Machine has been serving customers for more than 20 years, with a family background in precision machining that goes back over 60 years.
What services do you specialize in?
Our primary services include reverse engineering, precision CNC machining, prototyping, and production machining. We also offer grinding, welding, straightening, and keyway cutting.
Do you serve industries outside Wisconsin?
Yes. While we are based in Kaukauna, WI, we proudly provide machining services nationwide.
What makes you different from other machine shops?
Our family ownership means a direct, personal commitment to quality and service. We also offer versatile machining capabilities, from very large parts to detailed small components.
Contact 4M Machine
If you’re looking for a machine shop in Kaukauna, WI—or anywhere in the U.S.—that combines decades of expertise with modern technology, contact 4M Machine LLC today. Call us at (920) 850-8121, email meyerhoferds@sbcglobal.net & 4mmachinellc@gmail.com, or visit us at W5021 Amy Ave, Kaukauna, WI 54130. Our business hours are Monday–Friday, 7:00 AM to 5:00 PM.
We look forward to discussing your project and showing why so many manufacturers trust us for precision machining, reverse engineering, and production solutions.
