625JS

625 CNC Spindle Series

The versatile and reliable 625JS (3/4” / 20mm Straight Shank) delivers governed constant high speeds under load – 30,000 to 65,000 rpm, < 0.50 hp (0.37kW). Speed up your cycle times and reduce tool breakage with the compact 625 Series. Ideal for mold making, milling, and finishing with small tools up to 1/4” / 6mm capacity. Only 2 moving parts and air circulation over] the bearings, resulting in no heat. Get the reliability of direct-drive milling with no duty cycle and no thermal expansion. Selectable rear or side air feed.

625JS Specifications
Speed RPM30,00040,000 50,00065,000
Power Rating hp (Kw)0.40 (0.30) 0.45 (0.34)0.50 (0.37)0.55 (0.41)
Inlet Air Pressure90 PSI (6.2 Bar)
Air Consumption Idle cfm (l/s)10.5 (4.9)11 (5.2)11 (5.2)11 (5.2)
Air Consumption Working Flow (l/s)11 (5.2) - 20 (9.4)
Sound LevelLess Than 78 dBA
Max Shank CapacityER 11 - 1/4” (6mm)
Spindle Weight49.6 oz (1.41 kg)

625JS Dimensions

625JS Dimensional Drawing
625JS Dimensions
A0.87” (22mm)
B2.24” (57mm)
C5.12” (130mm)
D7.09” (180mm)

Equipment

Included Equipment

Spindle
Combo filter extractor (p/n #30008)
Collet
Wrenches
Hose
Fittings
Plug (for alternate air inlet not in use)
Carrying case

Standard Equipment

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 ModelsPart #
High Flow Filter / Regulator / Extractor30008
Tube 10mm O.D. - 6.5mm I.D. (order by foot)16508
Hose & Fitting - 10mm O.D. - 6.5mm I.D. - 12’30043

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 RPMPart #Speed RPMPart #
30,0006302030,00063021
40,0006302240,00063023
50,0006302450,00063025
65,0006513265,00065133

Videos

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!

Steel Milling at 2,600 mm/min - Reduce your Cycle Times with the Air Turbine Pneumatic Spindle

Engraving at 65,000 RPM on Haas VF9 CNC by Air Turbine Spindles®

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].