Based on a modular design, the SV-1000 series vertical CNC honing machine from Sunnen is engineered to scale up from a single-spindle machine to a fully automated multispindle unit for ultraprecise bore sizing and finishing. Designed for part diameters of 3 to 65 mm (0.12 to 2.56 in), SV-1000 series machines can size bores to accuracies of 0.25 µm (9.8 µin). The SV-1000 series is suitable for diesel fuel injectors, gears, small engine cylinders/connecting rods, and hydraulic/pneumatic components in medium to high volumes. The basic single-spindle SV-1000 module is designed from the ground up for future automation with removable side enclosure panels to facilitate flow-through part processing. Fully automated versions of the SV-1000 can be specified with the servo rotary table or linear part transfer, integrated part handling systems, and up to four spindles. It is available with a fixed tooling plate or servo rotary table with 12-position rotary air union for fixture control.