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The MST-23 series air motor spindles incorporate a specifically designed 30,000rpm air motor. The 8,000 and 2,000rpm versions also utilize a high-precision small planetary gear speed reducer system – the 8,000rpm spindles have built-in 1/4 motor speed reduction, thereby increasing the torque by four times the motor torque - the 2,000rpm spindles have a 1/16 motor speed reduction, thereby increasing the torque by 16 times over the motor torque. The MST-23 spindles are designed to be mounted into a 0.91” diameter holder. This greatly extends the capabilities of existing NC and CNC lathes and screw machines. Each speed spindle is available in either a straight or right-angled air connection configuration depending on the mounting and plumbing restrictions in your installation. These spindles are specifically designed for long-term, continuous use in high-speed machining applications and can be used in conjunction with water or oil based coolants.

CAUTION - DO NOT over tighten the clamping of these spindles, nor allow set screws to press directly against the spindle housing. The outer housing is (SUS416) precision ground to +0/-0.01mm.
- The MS series spindles are designed to operate smoothly at high speeds for long hours of continuous drilling or milling when coupled with an appropriately adjusted air line kit (filter/regulator/micro-mist oiler). We highly recommend using the manufacturer's air line kit, as this item includes a special micro-mist (atomizing) lubricator not usually found on most commercially available air line kits.
- Use only the manufacturer’s recommended spindle lube oil – Chevron Superla 9.

To order a complete spindle system, specify the desired
MS SERIES SPINDLE
EXTRA COLLETS (as needed)
AIR LINE KIT


MST-23 Series - Ø0.91" (Ø23mm) Diameter - 108 Watt



NSK MST-23 Series Air Spindle
SKU: MSST-2330R
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NSK MST-23 Series 90 degree Air Spindle
SKU: MSST-2330RA
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NSK Nakanishi Special DCH Drill Chuck Arbor
SKU: DCH-JOA
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NSK Nakanishi Special KCH Metal Saw Arbor
SKU: K301085
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NSK Nakanishi CHK Collet
SKU: PL42685
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NSK Nakanishi CHN-02 Collet Nut for CH5
SKU: AS32124
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NSK Nakanishi K-218 Collet Cap for CH5
SKU: PL12120
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NSK Nakanishi K-265 Collet Nut for CHK
SKU: RA11900
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NSK Nakanishi K-265A Collet Nut for CHK
SKU: K-265A
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NSK Nakanishi Air Line Silencer
SKU: AA10040
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NSK Nakanishi AL-M1203B32 AL951 Air Line Kit
SKU: AL-M1203B32
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NSK Nakanishi ALM1202 Air Line Kit
SKU: AL-M1202
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NSK CH5 Collet
SKU: 91203
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NSK Grindstone Arbor
SKU: NCH-01
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Spindle Lubricating Oil
SKU: AA10478
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