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Entrepreneurs Load Shops with Compact Machines - Advanced Manufacturing

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Most CNC job shops and manufacturing contractors secure work before purchasing new machines. Typically, this method makes it easier for management to schedule jobs on specific machines and allows for more flexibility.

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Azimuth Technology, founded in 2012 in Naples, Fla., has become one of the leading firearm component manufacturers in the country. (All images provided by Azimuth)

LeNoir “Len” E. Zaiser III and his son, Len E. Zaiser IV, are not most people, and their businesses are far from typical—they’re extraordinary. The father and son entrepreneur team puts production process first. Len Zaiser IV said developing skilled CNC machinists and programmers, investing in world-class technology and refining manufacturing procedures creates the best product.

“We have what we call the ‘Field of Dreams’ philosophy,” Len Zaiser IV said. “If you build it, they will come.” However, unlike the classic 1989 baseball movie, the Zaisers powered different companies with CNC machines rather than a baseball diamond in a corn field. For the Zaisers, one key machine tool is the RoboDrill. When Len Zaiser III founded Structure Medical in 2005, the RoboDrill quickly set itself apart from other machines. The Zaisers used the machine to manufacture a titanium pedicle screw assembly—a mechanically complex orthopedic screw inserted after spinal surgeries. “It was about a year later that we determined it was the most profitable job in the whole factory,” Len Zaiser IV said. “That was really an epiphany for us.”

Structure Medical continued to grow, as did the number of RoboDrills in the shop. Operators became accustomed to the usability of FANUC controls, Zaiser said, and the machines produced precise, accurate and reliable components.

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Azimuth uses FANUC RoboDrills from Methods Machine Tools in its machining operations.

“We became the go-to company in the world for titanium and polyetheretherketone (PEEK) implants,” he added. “We were basically making the most complex components out there, things that other people couldn’t make.” Although under new ownership, Structure Medical continues to grow.

Len Zaiser III sold Structure Medical in 2010, and the duo co-founded Azimuth Technology in 2012, with Len Zaiser IV as CEO. Based in Naples, Fla., Azimuth Technology has become one of the leading firearm component manufacturers in the country. Every month, Azimuth Technology produces tens of thousands of bolt carrier groups, pistol barrels and pistol slides for hundreds of companies.

Azimuth Technology was a new venture, but the Zaisers maintained their commitment to manufacturing high-quality products. “What we’re passionate about is making quality products on time and efficiently in industries that have not caught up with the current technology,” Len Zaiser IV said.

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Azimuth purchased KIWA KH-4100s from Methods Machine Tools for its machining operations. The unique combination of a two-pallet changer (PC2) and compact design made the machine tool a perfect fit for the shop.

With that mindset, Len Zaiser IV and Azimuth’s milling manager, Nick Chylinski, began the search to make firearm production more efficient using modern manufacturing practices and leading machine tools. One of the biggest hurdles in any shop is space, Zaiser said. For a while, the company was content with using vertical mills as horizontal CNC machines. That meant inefficiencies in the form of numerous changeovers and part swapping every time a component entered and exited a machine. 

Azimuth Technology developed some of the best firearm components on the market but needed to make them faster. “Once we had enough quantity to make the same part, it only made sense to invest in continuous machining,” Chylinski said. The company needed to strike a balance between floor space utilization, a key attribute of vertical machines, and unmanned machining, which is typically easier to implement on horizontal machines since those machines come with automatic pallet changers.

Len Zaiser IV and Chylinski found their silver bullet: the KIWA KH-4100. The unique combination of a two-pallet changer (PC2) and compact design made the machine tool a perfect fit.

“Methods offers something unique,” Zaiser said. “The KIWAs are 60" (152.4 cm) wide, and there is no other comparable horizontal machining center in the world that has the footprint with the working envelope that KIWA has; it’s phenomenal.”

The benefits of horizontal machining were immediate. The company’s vertical machining process was time-consuming. It involved stopping vertical machines, removing the workpiece, flipping it, putting it back into the machine, changing tools, starting the machining, and repeating the process ad nauseam. 

The KH-4100’s 15,000 rpm spindle and 60-tool automatic tool changer (ATC) helped make the process remarkably simple; put the workpiece in and prepare the next one.

“With a horizontal machine, you have the fixture loaded and running while the operator is unloading and reloading the next fixture, so the machine is continuously running; it never stops making parts,” Chylinski said.

The KIWA’s slim design allowed Azimuth to pack in more machines; some of them have spindles running for 40 hours without stopping. The switch from vertical to horizontal machining alone increased throughput by 50 percent, Chylinski estimated.

“That’s a lot of throughput, considering they run lights out,” Zaiser added. “Any time that a machine can run with no one around goes straight to the bottom line.”

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A row of FANUC RoboDrill machines in operation at Azimuth.

Methods’ contributes to Azimuth’s bottom line beyond supplying machine tools, Zaiser said. The machine tool supplier installs all machine tool options and necessary components at its Charlotte Technical Center in North Carolina. When the CNC machine arrives at Azimuth Technology, it’s ready to work.

Methods’ field service team and product managers are ready, too. When the company had the first KH-4100 up and running, Bernie Otto, Methods’ director of technical support and product manager for KIWA and OKK, was onsite to smooth out any wrinkles operators had using horizontal machines. “He definitely delivered; it was pretty straightforward,” Chylinski said.

Other Methods’ team members, such as Terry Thomas, service manager at the Charlotte Technical Center, are only a phone call away. “Terry’s like a machining encyclopedia,” Chylinski added. “A lot of times he can troubleshoot over the phone.”

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A FANUC RoboCut wire EDM in operation at Azimuth.

Seeing the success of horizontal machining, Azimuth continued to expand its capacity in Q1 2021, this time with OKK’s VP500. The heaviest machine at Azimuth, the VP500 delivers fast rapids, ease of use with a familiar FANUC control and superior rigidity. “They’re definitely an upgrade to the off-brand, 40-taper verticals we had been using for that operation,” Chylinski said. “We literally doubled our machining capacity by installing those machines.”

Azimuth Technology has proliferated since its inception. The company has about 130 customers throughout the U.S. and has become one of the largest contract firearm manufacturers in the country. Azimuth continues to invest in its people, technology and processes, with a 125,000-ft2 (11,613 m2) expansion in the works. 

“We could not do what we do today without implementing the KIWAs,” Zaiser said. “The compact KIWAs and knowledgeable staff at Methods are the perfect fit for our shop and our culture.”

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