660JS

660 Spindle Series

The 660JS (3/4” / 20mm Straight Shank) is ideal for heavier duty applications and milling hard materials in corners. The 660 features a higher governed constant speed at 50,000 rpm and even higher power at 0.94 hp (0.70 kW). For higher power, the double turbine 660X is available with 1.60 hp (1.19 kW) at 50,000 rpm. Our proprietary governor-controlled turbine maintains rated high speed optimizing tool performance and life. Air Turbine Spindles® direct-drive turbine operates with very low vibration and no heat in 24/7 operation. As a result the 660 mills faster in all materials, including tool steel, titanium and ceramics reducing cycle times dramatically. For long life milling in hard materials this robust 660 Series is equipped with quadruple air-cooled angular contact bearings.

Economical consumption of air results from our governor adjusting cfm airflow to the minimum required to maintain high speed. With 2µ precision in its Ultra-Precision Collet ER 11 the 660 is also very precise. Selectable rear or side air feed on each spindle. Automatic Loading from the magazine on all machines.

ER11- 1/4″ ER11- 6mm
Speed RPM Part # Speed RPM Part #
50,000 65200 50,000 65201
660JS Specifications
Speed RPM 50,000
Power Rating hp (Kw) 0.94 (0.70)
Inlet Air Pressure

90 PSI (6.2 Bar)
Air Consumption Idle cfm (l/s) 14 (6.61)
Air Consumption Working Flow (l/s) 14 (6.61) – 35 (16.52)
Sound Level Less Than 78 dBA
Max Shank Capacity ER 11 – 1/4” (6mm)
Spindle Weight 65.8 oz (1.95 kg)

A 0.87” (22mm)
B 3.23” (82mm)
C 5.79” (147mm)
D 7.76” (197mm)
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

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.

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.

Brother LogoDMG Mori LogoHaas LogoHermle LogoFanuc LogoDoosan LogoGrob LogoHurco Logo

Service & Support

Support is always available from our technical team in the USA, Germany and Mexico. Repair Service is available in Florida and Munich.

Call our factory technicians at +1-561-994-0500 or email us at [email protected].