625 CNC Spindle Series

The versatile and reliable 625JS (3/4” / 20 mm straight shank) delivers governed constant high speeds under load – 30,000 to 65,000 RPM, < 0.55 HP (0.41 kW). Speed up your cycle times and reduce tool breakage with this compact series. Ideal for mold making, milling and finishing with small tools up to 1/4” / 6mm capacity. With only 2 moving parts and air circulation over the bearings the 625JS has no heat or thermal expansion along with 2 micron ultra precision. Get the reliability of direct drive milling with no duty cycle. Selectable rear or side air feed.

625JS Specifications
Speed30,000 RPM40,000 RPM50,000 RPM65,000 RPM
Power Rating0.4 HP (0.3 kW)0.45 HP (0.34 kW)0.5 HP (0.37 kW)0.55 HP (0.41 kW)
Inlet Air Pressure90 psi (6.2 bar)
Air Consumption Idle12 CFM (5.66 L/s)14 CFM (6.61 L/s)16 CFM (7.55 L/s)
Air Consumption Working Flow11 CFM (5.19 L/s) - 20 CFM (9.44 L/s)
Air Hoses and Fittings Minimum Size6 mm internal diameter
Sound LevelLess Than 78 dBA
Max Shank CapacityER11 UP - 1/4” (6 mm)
Spindle Weight49.6 oz (1.41 kg)

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

625JS Dimensions

625JS Dimensional Drawing
All fittings, couplings, and hoses must have a minimum of 6 mm internal diameter.
625JS Dimensions
A0.87” (22 mm)C5.12” (130 mm)
BØ 2.24” (57 mm)D7.09” (180 mm)
625JS Dimensions
A0.87” (22 mm)
BØ 2.24” (57 mm)
C5.12” (130 mm)
D7.09” (180 mm)


Included Equipment

625JS Spindle
Combo Filter Extractor
ER11 UP Collet System (1/4” or 6 mm)
Collet Wrenches
Air Hose
Plug (For alternate air inlet not in use.)
Coolant Guard
Carrying case

Standard Equipment

ER11 UP collet system (1/4” or 6 mm collet). 3/4” or 20 mm 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 10 mm O.D. - 6.5 mm I.D. (order by foot)16508
Hose & Fitting - 10 mm O.D. - 6.5 mm I.D. - 12’30043
ER11 UP - 1/4"ER11 UP - 6 mm
Speed RPMPart #Speed RPMPart #


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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].