This NSK Nakanishi spindle is specially designed for easy tool replacement. The cutting tool can be exchanged automatically by supplying air to the collet release mechanism connection. This high-precision NSK Nakanishi spindle utilizes high precision bearings.

Special sealed collets prevent powder debris and residue from entering the spindle during dental, circuit board, and other non-ferrous metal machining. ATC-RS stands for the 'Auto Tool Change - Rubber Seal'.

Note: as of Dec-2024, this spindle has replaced the NR50-5100 ATC spindle which has been discontinued and is no longer available.

• Allowable Motor Speed: 60,000 rpm
• Spindle Accuracy: Within 1 µm
• Air for Collet Opening: 80~87PSI
• Weight: 3 lb. 0.33 oz.
• NSK Catalog Number: 7909

Included Equipment:
• Collet Chuck ø1/8" (CHR-3.175" RS - 93202) : 1pc
• Air Hose with filter (K-251): ø0.6 mm x 6 ft.
• Wrench (12×14 - 2026), (9×11 - 2054): 1 pc. each
• Bar Wrench (K-236 - 2046): 1 pc.

Optional Equipment:
• Special RS Collet Chuck (CHR-[][] RS): ø2.0, ø3.0 mm, ø1/8", ø4.0 mm, ø6.0mm, ø1/4".

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