(Sunnen Products Co.: St. Louis) -- Sunnen’s SV-1005 series vertical computer numerical controlled (CNC) honing system with integrated air gauging system provides closed-loop control of tool size, along with downloadable statistical process control (SPC) data. Matched with Sunnen’s super abrasive MMT tool, the air-gauge-equipped machine can automatically control hole size to accuracies of 0.25 µm (0.00001 in.) without operator intervention, working in a bore size range of 3 mm–65 mm (0.120 in.–2.56 in.) diameter. It’s ideal for automated, high-Cpk production of small engines, hydraulic valves and bodies, fuel injectors, gears, compressor parts, turbocharger housings, and gun barrels, in medium and high volumes.

According to Sunnen, by combining the new air gauging system with the machine's patent-pending tool-feed control, the SV-1005 eliminates the need for an experienced honing operator to tweak the process. The new air gauging system controls bore diameter and geometry by taking post-process measurements of the parts while they are still fixtured on the machine’s rotary table.

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