![]() Bolted behind the gearbox (and protruding through the back of the bed-support plinth) was a push-button controlled 2-speed 6.5-4 HP electric motor that gave, in combination with the four-speed headstock reduction gearing a total of 18 speeds that ran from 12 through 16, 20, 25, 31, 40, 50, 62, 80, 100, 125, 158, 200, 250, 316, 400, 500, 632 to 1000 rpm.Īlthough many contemporary competitor machines offered either a spindle brake or clutch (and sometimes both) no such option was available for the Celtic 20, a situation that must have frustrated many operators as they watched their bonus-payment seconds slip away because a heavy job would not stop rotating quickly enough.Īvailable with or without a detachable gap piece that allowed material up to 30" inches in diameter and approximately 10" thick to be swung, the bed had V-ways of a type similar to that first used on the beautiful American Wade No. ![]() ![]() 6 Morse taper Timken taper roller bearing headstock spindle was undersized for the capacity of the lathe and the nose fitting a similarly too-small American long taper L1 - in comparison the equivalent Colchester Mastiff had a 3.5-inch spindle bore and, with an 11-inch D.1 Camlock fitting, a nose able to carry much more massive and useful chucks.ĭrive came from a 3-speed gearbox mounted inside the left-hand cabinet plinth with its operating lever, a large chrome-plated rod, on the font of the stand the box was oil-splash lubricated and held induction-hardened gears running on ball-bearing supported, hardened and splined shafts. As with the smaller Celtic models the bore of the (heat treated) No. Like the Model 17 the headstock casing was double-walled, internally braced box with a centre section that sealed the 5-step V-pulley against the ingress of oil from the speed-reduction and leadscrew-drive gearing the drive pulley ran on its own large roller bearings to isolate the effects of belt pull. The lathe was mounted on two massive cast-iron plinths spanned by a deep slide-out chip tray unfortunately there was no form of storage, not even an open shelf, for either tools or accessories. Largest of the Celtic range, the 10" centre height by 40, 60, 80, or 100 inches between-centres Mondiale Celtic "20" was designed along very similar lines to the Company's smaller lathes, even to a V-belt drive headstock. Mondiale Home Page Mondial e Simplex Lathes Celtic 12Ĭeltic 14 Celtic 17 Celtic 20 Mk.2 Celtic Lathes Mondial and Simplex Manuals are available from .uk ![]() Machine Tool Manuals Catalogues Belts Books Accessories Email: t Machine Tool Archive Machine-tools Sal e & Wanted ![]()
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