Koike Aronson Motormaster

The Koike Aronson Motormaster is a heavy-duty, floor-mounted CNC plasma and oxy-fuel cutting system designed for production cutting of large structural steel plate in fabrication shops, steel service centers, and heavy manufacturing facilities. Unlike the portable Pug and Beetle product lines, the Motormaster is a stationary gantry-style cutting machine with a fixed cutting table and CNC control — bringing automated, repeatable, precision cutting to industrial plate processing operations. It represents Koike Aronson's capability in the larger, shop-floor CNC cutting segment alongside the company's Rasar II and other heavy cutting platforms.

The Motormaster features a robust gantry construction designed to maintain geometric accuracy on long cuts across large plate sections. The CNC control system programs cutting paths, manages torch height control, and interfaces with standard DXF/DWG nesting software to optimize material utilization from raw plate. Multi-torch configurations allow simultaneous cutting of multiple parts from a single plate pass, dramatically improving throughput for structural steel shops that process high volumes of standardized part shapes such as flanges, gussets, stiffeners, and connection plates.

Process flexibility is a key attribute of the Motormaster. The machine can be configured with oxy-fuel torches for thick carbon steel (up to 250 mm and beyond depending on configuration), plasma torches for faster cutting of mild and stainless steel plate in the 6–50 mm range, or a combination of both processes on the same gantry. Torch height control (THC) maintains optimal standoff distance automatically as the torch traverses the workpiece, compensating for plate bow and surface irregularities that would otherwise degrade cut quality and cause consumable damage.

Primary markets for the Motormaster include structural steel fabricators, steel service centers, shipyards with plate cutting departments, heavy equipment manufacturers, bridge and infrastructure fabricators, and pressure vessel shops. Koike Aronson's American manufacturing heritage and emphasis on heavy-duty construction differentiates the Motormaster from lighter-duty imported gantry plasma tables — it is built for multi-shift production environments where machine uptime and cut quality consistency are paramount to shop throughput and profitability.