625JS

625 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

Video

Brass Milling at 500”/min on Haas VM2 by Air Turbine Spindles® 50,000 rpm 625JS

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].