Juaristi MX Series

The Juaristi MX Series is a range of CNC floor-type horizontal boring and milling machines from Juaristi, the Basque Country specialist whose machines have set a reference standard for large-part precision boring in European heavy industry for over 60 years. The MX designation covers Juaristi's large floor-type models with spindle diameters of 130 mm and 160 mm, designed for machining the largest workpieces encountered in power generation, shipbuilding, heavy mining equipment, and large industrial gearbox manufacturing. Where the TS and TX series are table-type machines with workpiece size limits, the MX Series is designed specifically for workpieces that cannot practically be mounted on a table — large castings, turbine casings, marine propulsion housings, and heavy fabrications that may weigh tens of thousands of kilograms.

The MX Series floor-type configuration places the workpiece on the shop floor or on foundation-mounted T-slot fixtures, with the spindle column travelling on floor-mounted linear guideways over X-axis ranges of 10,000 mm to beyond 30,000 mm depending on the installation. The Y-axis (vertical) typically travels 3,000–4,500 mm, and Z-axis (column) reaches 1,500–2,500 mm. The spindle W-axis extension ranges from 700 mm to 900 mm, providing deep-bore reach without repositioning. Facing head (U-axis) capability enables large-diameter face milling and annular boring operations up to facing head diameter, handling the large-flange boring common in turbine and valve work.

Juaristi builds the MX Series on hand-scraped Meehanite cast iron structures with hydrostatic or box guideways, providing the vibration damping and geometric stability essential for consistent accuracy over long machining cycles on large workpieces. Spindle power on larger MX configurations reaches 55–75 kW, delivering the heavy-duty stock removal capability needed on large cast iron and steel forgings. The CNC is typically Heidenhain TNC 640 or Siemens 840D sl, with full 5-axis capability via the optional CNC rotary table. Automatic tool change with 60–120 position magazines handles the diverse tooling required for complex multi-operation large-part setups.

Priced in the $1,200,000–$3,500,000+ range depending on configuration, travel range, and accessories, the Juaristi MX Series competes with Parpas Milling Lines, Nicolás Correa floor-type machines, Toshiba BTD series, and Fermat WFT/WFBQ large-frame boring mills. Its long-standing reputation in European power generation and heavy industry, combined with Basque Country manufacturing craftsmanship, makes it a trusted reference for shops where floor-type boring capability is a core business competency rather than an occasional requirement.