Sold: Jones & Shipman 520 Miniature Precision Cylindrical Grinder

Jones & Shipman 520 Miniature Precision Cylindrical Grinder. Mounted on the maker's cabinet stand with its original complex overhead drive system. The drive system fits on the stand behind the grinder - it's too heavy for me to lift on. Originally built with regard to cost, Jones & Shipman claimed an accuracy of 0.0001" and with a surface finish achievable of better than 1 micro inch R.M.S. The 520 could be supplied for bench mounting or, as in this case, complete on the maker's superb 44" x 28" by 36" high oak cabinet with storage drawers, a built-on countershaft drive unit., coolant and electrical switchgear The drive unit reflected contemporary practice and hence was a rather large and expensive construction: all shafts ran in ball races, everything that rotated was dynamically balanced to ensure that no vibrations reached the grinding machine.  Full details of J & S 520 cylindrical grinders here



Asking price: 
United Kingdom
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