Air Spindle

SPM30 Type

Proudly achieved low NRRO (non-repeatable run-out), top-rank in the industry

SPM30  Type


  • Maintain NRRO of 2nm and below at high speed of 20,000 r/min and below (by our measurement standard).
  • Addressed unbalance during high speed rotation to achieve low vibration. Unbalance force is 0.05gmm and below.


SPM30 Type Dimensions


Type SPM30
Air supply pressure 0.5MPa(G)
Maximum rotation speed 20,000r/min
Rotation speed change*1 0.001 % and below (Encoder Z phase jitter)
Non-repeatable run-out
(NRRO) accuracy
Radial 0.002μm and below
Axial 0.002μm and below
Repeatable run-out
(TIR) accuracy
Radial 1μm and below
Axial 1μm and below
Rigidity Radial 12N/μm and above
Axial 45N/μm and above
Load capacity Radial 40N and above
Axial 110N and above
Air mass consumption 15Nl/min and below
Motor capacity 60W (at 20,000 r/min)
Cleanness Class 10 (0.1μm)
Unbalance force 0.05gmm and below
Mass 2.7Kg
  • When our Non-switching driver NS20-A is applied.
  • Specifications and dimensions are subject to change without notice.
NRRO(Radial Direction)
TIR(Radial Direction)

Catalog Download

Air Spindle SPM30 Type[PDF/358KB]


ShinMaywa Industries, Ltd.
Automatic Machinery Group, Wire Processing Systems Department
1-1 Shinmeiwa-cho, Takarazuka-shi, Hyogo 665-0052  Japan
Phone: +81-798-54-1834