625X Variable Speed CNC Spindle Series

The patented double turbine 625XVS JS (3/4” / 20mm Straight Shank) delivers constant high speeds and power under load. Easily switch between speeds of 30,000 and 50,000 rpm, with 0.76 hp (0.57 kW) in twin turbine mode. Speed up your cycle times with this compact and powerful spindle. Ideal for contouring, mold making, milling, finishing and drilling with small tools. Direct drive means low heat, no duty cycle and super reliability. Selectable rear or side air feed.


This Flexible Spindle Can Easily Change Speed and Power Ratings

Simply insert a hex key through the air shaft at the back of the spindle and turn the flow control screw up or down to switch speeds.

625XVSJS Specifications
Speed RPM30,000 - 50,000
Power Rating hp (Kw)0.4 (0.3) - 0.76 (0.57)
Inlet Air Pressure90 PSI (6.2 Bar)
Air Consumption Idle cfm (l/s)10.5 (4.9) - 20 (9.44)
Air Consumption Working Flow (l/s)11 (5.2) - 30 (14.16)
Air Hoses and Fittings Minimum Size8mm ID
Sound LevelLess Than 78 dBA
Max Shank CapacityER 11 - 1/4” (6mm)
Spindle Weight60 oz (1.70 kg)

How do I change the speed?

Our patent-pending system makes it very easy to change speed and power rating in a minute with our patented double turbine. A hex key fits through the air shaft at the back of the spindle. The flow control screw is turned up or down by the hex key to switch speeds, as displayed below in the red and green positions below.

Single Turbine Mode Shown

Diagram Displaying that you only need to turn a hex key at the back of the Spindle to switch between speed modes.
Click to Change Speeds
625XVSSingle Turbine ModeDouble Turbine Mode
Position in DiagramGreenRed
Power Rating0.4 hp (0.3 kW)0.76 hp (0.57 kW)
Speed30,000 RPM50,000 RPM

Retrofit Any CNC with High Speed

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.

Add These High Speed Spindles to Your CNC for 5 X Faster Production

625XVSJS Dimensions

625XVSJS Dimensional Drawing
All fittings, couplings, and hoses must have a minimum of 8mm internal diameter.
625XVSJS Dimensions
A0.87” (22mm) C5.55” (141mm)
BØ 2.24” (57mm)D7.52” (191mm)
625XVSJS Dimensions
A0.87” (22mm)
BØ 2.24” (57mm)
C5.55” (141mm)
D7.52” (191mm)


Included Equipment

625XVSJS Spindle
Combo Filter Extractor
ER 11 UP Collet System (1/4” or 6mm)
Collet Wrenches
Air Hose
Plug (For alternate air inlet not in use.)
Coolant Guard
Carrying Case

Standard Equipment

ER 11 UP Collet System (1/4” or 6mm). 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 ModelsPart #
High Flow Filter / Regulator / Extractor30008
Tube 12mm O.D. - 8mm I.D. (order by foot)16509
Hose & Fitting - 12mm O.D. - 8mm I.D. - 12’ 30045
ER11- 1/4"ER11- 6mm
Part #Part #


Change Speed and Power in a Moment on your CNC Spindle

M4S Micro Demo - 40,000 RPM, 20 IPM in 45HRc on HAAS

Haas CNC Main Spindle v. The Air Turbine CNC Spindle

CNC Spindle Milling Steel at 5000 mm/min on DMG Mori at 50,000 rpm and 0.76 hp

50,000 RPM CNC Spindle on Hermle Engraves Aluminum Elephant

C/T Reduced by 25 Minutes with 50,000 rpm! Pocketing Brass with Air Turbine CNC Milling 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].