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Machine Design

Modular cartridge spindle

OEMs typically use spindles as work heads in turning, grinding, and polishing machines, while equipment builders use them for tool heads. A 16C cartridge spindle accepts 5C collets (1.0625 in. through capacity), 2J collets (1.375 in. through), and 16C collets (1.625 in. through) directly into the spindle. A separate collet chuck is not required and a #5 Morse taper can replace a collet taper for special applications. Rated for 6,000 rpm, it is used for mounting power jaw chucks, collet chucks, and fixtures. Some of the spindle nose configurations available include American Standard A2-3, A2-4, and A2-5. Provided as stand-alone assemblies or as spindle/headstock kits, the kit configurations include cast iron headstock, pneumatic collet/chuck actuators, draw tubes, drive and encoder pulleys, and collet chuck systems.

Dunham Tool Co., 3 Dunham Dr., New Fairfield, CT 06812, (203) 746-2407.

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