Welding

Koike Aronson Inc

SIMPLY BETTER BUILT - FOR OVER 100 YEARS.

Koike Aronson/Ransome is the industry leader in the cutting machine, welding & positioning equipment and portable & gas equipment markets: our machines are built with the highest quality parts, for the longest-lasting performance in the industry. We offer a variety of machines across multiple price ranges, designed to provide a solution to fit your budget while maximizing safety and performance.

We serve steel service centers, heavy equipment, general fabrication, energy, shipbuilding, pipe & vessel, transportation, education, construction, tank fabrication, repair and maintenance, and other industries.

We work with you to find the right solution, tailored to your requirements and built with enhanced operator tools, education and safety controls in mind for superior usability and protection.

Quantum Machinery Group

Quantum Machinery Group is one of the largest and most trusted metalworking machinery distributors in the United States, offering one of the most diverse and complete lines of metal fabrication equipment available.

As the exclusive U.S. importer and distributor of Siegmund Welding Tables, MACC Saws, and Nargesa Metalworking Machines, we provide premium solutions for nearly every stage of the fabrication process—from cutting and bending, to forging, forming, and welding.

We proudly stock and support the full range of Siegmund Welding Tables, including System 16, 22, and 28 tables, fixturing kits, positioning systems, rail systems, and mobile workbenches—engineered with precision and built to perform in the most demanding environments.

Our MACC line features high-performance manual, semi-automatic, and fully automatic cold saws and band saws built in Italy. These machines are designed for accuracy, durability, and speed when cutting tube, pipe, solid bar, and structural material.

From Nargesa, we offer a robust line of industrial machines including ironworkers, hydraulic press brakes, section bending machines, tube and pipe benders, hot forging presses, power hammers, bar twisting machines, and more. Each machine is built for strength, efficiency, and versatility—ideal for structural, ornamental, and custom fabrication.

With a massive in-stock inventory, full in-house technical support team, and the fastest shipping in the industry, Quantum delivers not just machines—but complete, reliable solutions for fabrication shops of every size.

From first cut to final weld, Quantum Machinery Group is your partner in premium metalworking solutions.