Bore Finishing Technology

The company's superabrasive single-pass bore finishing technology will be exhibited. The new SPM Series of single-pass diamond bore finishing machines is designed to meet the needs of job shops finishing small- to medium-sized parts. Available in two-, four- and six-spindle models, these systems are primarily for pa

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The company's superabrasive single-pass bore finishing technology will be exhibited. The new SPM Series of single-pass diamond bore finishing machines is designed to meet the needs of job shops finishing small- to medium-sized parts. Available in two-, four- and six-spindle models, these systems are primarily for parts with bore diameters of 1" or smaller. As with larger standard models of the company's single-pass systems, the new small-footprint SPM machines features a servo fed column design, 18" stroke, pneumatic counter balance design for extended ballscrew life, as well as a pneumatic indexing table. The system incorporates Mitsubishi full CNC programmable controls, Class 7 duplex spindle bearings and 1,000" ASA spindles. The capabilities of the bore finishing systems include bore size control to within 1 micron, bore geometry to better than 1/2 micron, surface finishes to meet almost any specification and cycle times as short as 4 seconds, depending on the application. Other benefits include lower labor costs, lower cost per hole through a longer tool life, improved bore quality with SPC values greater than 2 cpk, shorter cycle times and less frequent part inspection, according to the company. Standard safety features include interlocked motion control, which among other benefits does not allow table index while the column is below cycle start position, an interlocked coolant system, a torque sensor to monitor the spindle load and dual optitouch cycle initiation buttons.