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Selection Guide
All Air Turbine Spindles® are direct drives with our patented high torque governor maintaining high speed and torque under cutting load up to 80% of rated maximum power. This ensures continuous toolpath engagement at high speed in angles and hard materials for trochoidal milling and optimized cutting tool performance. X= Extra Power, Double Turbine Spindle.


Optimum Spindle for Each Tool
√ = Optimum
∞ = Acceptable
! = Dependent upon cutting conditions
× = Not recommended for use

  602

625(X)

650(X)

660(X)

Drill Ø 0.004 - 0.012“ (0.1 - 0.3mm)
Ø 0.012 - 0.020” (0.3 - 0.5mm)
Ø 0.020 - 0.039” (0.5 - 1.0mm) !
Ø 0.039 - 0.059” (1.0 - 1.5mm) ×
Ø 0.059 - 0.079” (1.5 - 2.0mm) × !
Endmill Ø 0.004 - 0.039” (0.1 - 1.0mm)
Ø 0.039 - 0.079” (1.0 - 2.0mm)
Ø 0.079 - 0.138” (2.0 - 3.5mm) !
Ø 0.138 - 0.197” (3.5 - 5.0mm) ×
Ø 0.197 - 0.236” (5.0 - 6.0mm) × !
Jig Grinding × !

Specifications 602 625(X) 650(X) 660(X)
Governed Speed - rpm 40,000
50,000
65,000
90,000*

30,000
40,000
50,000
65,000

25,000
30,000
40,000
50,000
Power Rating - hp (kw) 0.15 - 0.20
(0.11 - 0.15)
0.40 - 0.78
(0.30 - 0.58)
0.80 - 1.40
(0.60 - 1.04)
0.94 - 1.60
(0.70 - 1.19)
T.I.R. at Nose Less than 2m
Collet Range 0.5mm - 7mm
Air Pressure Less than 90 psi (6.2 Bar) (0.62 MPa)
Air Flow 5 - 40 CFM (2.36 - 18.89 L/s) [ANR]

The above table is a general guideline. Each application is different. Please contact us at info@airturbinetools.com to discuss your application or complete our applications questionnaire here.
These air turbine spindle, air turbine tools, air turbine motors are all products of air turbine technology, inc. Designed to out perform the cnc spindle or cnc machine spindle with a revolutionary pneumatic motor, air turbine spindles are designed to work with chiron, dmg moro seiki, doosan, fadal, emco, haas, hardinge, hartford, hermle, hurco, hwacheon, kitagawa, makino, mazak, okuma, romi and many other cnc machines. Also compatible with brother, fanuc, haas, matrix and other drill-tap machines for cnc milling with our high speed precision pneumatic air spindles. Our air turbine motors are high speed, efficient, pneumatic motors. These pneumatic motors are designed for lathe, robot, machining, debarring, finishing, routing, drilling and milling, a very versatile fixture mount. We also manufacture air turbine hand tools that are engraving tools, finishing tools, grinders, pencil tools, routing tools and marking tools. Air Turbine manufactures hand tools, grinders, pencil tools, debarring tools, finishing tools, which are all low vibration tools, precision tools, and ergonomic tools. These tools are performance tools, low weight tools, with an air turbine motor. Air Turbine motors require no oil, have no gears or vanes, for reliability. Made in USA.
All prices are in US Dollars, FOB., Boca Raton, Florida, USA. International local pricing will vary, depending on location, to include: shipping, freight, handling, customs and excise duties, local taxes and handling, currency exchange rates, etc. All specifications approximate.