650 CNC Spindle Series

The 650JS (3/4” / 20mm Straight Shank) delivers governed constant high speeds under load – 25,000 to 40,000 rpm, < 0.88 hp (0.66 kW). Robust and reliable, with double front ceramic bearings, the 650 Series is ideal for heavier duty applications and milling hard materials in corners. The governor-controlled turbine maintains rated high speed, optimizing tool performance and life. Effective in all materials, including tool steel, titanium, and ceramic. Ultra-low vibration and no heat in 24/7 operation. Selectable rear or side air feed on each spindle. Automatic Loading from the magazine on all machines.

650JS Specifications
Speed RPM25,00030,00040,000
Power Rating hp (Kw)0.80 (0.60) 0.83 (0.62) 0.88 (0.66)
Inlet Air Pressure90 PSI (6.2 Bar)
Air Consumption Idle cfm (l/s)13 (6.1)14 (6.6)14 (6.6)
Air Consumption Working Flow (l/s)14 (6.60) - 35 (16.5)
Sound LevelLess Than 78 dBA
Max Shank CapacityER 11 - 1/4” (6mm)
Spindle Weight65.8 oz (1.95 kg)

650JS Dimensions

650JS Dimensions
A 0.87” (22mm)
B 3.23” (82mm)
C 5.79” (147mm)
D 7.76” (197mm)
E 1.62″ (41mm)

Spindle, combo filter extractor (p/n #30008), collet, wrenches, hose and fittings, plug (for alternate air inlet not in use), and carrying case. ER 11 collet system (1/4” or 6mm collet standard – other sizes optional). 3/4” or 20mm shank standard (Metric Shank comes with metric collet, Inch Shank with inch collet). Oil-free 90 psi / 6.2 bar, clean, dry air supply required.

Accessories Models Part #
High Flow Filter / Regulator / Extractor 30008
Tube 12mm O.D. – 8mm I.D. (order by foot) 16509
Hose & Fitting – 12mm O.D. – 8mm I.D. – 12’ 30045

We retrofit any CNC machine to mill at a constant high speed 24/7 – so any CNC can be a high-speed machine. This includes, but isn’t limited to DMG MORI, Haas, Fanuc Robodrill, Doosan, Hermle, Hurco, GROB, Brother Okuma, Makino and Mazak. Easy installation using selectable air feed inlets – choose side inlet NPT / Stop Block or center through shank/tool holder air feed. HSK, CAT, BT, and DIN Toolholder options are available. Learn more about Air Turbine Spindles on your CNC Machine by visiting their page at the links below.

ER11- 1/4″ ER11- 6mm
Speed RPM Part # Speed RPM Part #
25,000 63030 25,000 63031
30,000 63032 30,000 63033
40,000 63034 40,000 63035


50,000 RPM CNC Spindle Creates the Perfect Chocolate Mold at HAAS Allendale

Watch Chips Fly with this Air Turbine Tools® CNC Milling Spindle

40,000 RPM CNC Spindle Milling Aluminum on DMC125 U DuoBlock

CNC Milling Spindle Runs at 1850 mm/min with 40,000 RPM

CNC Spindle Milling and Drilling Aluminum at 40,000 rpm on Mikron CNC

5th Axis Cutting at 40,000 RPM / 150IPM on Haas UMC500 by Air Turbine Spindles®

Service & Support

Support is always available from our technical team in the USA and Germany. Repair Service is available in Florida and Munich. Call our factory technicians at +1-561-994-0500 or email us at [email protected].