625HSK-A63

625 Spindle Series

The versatile and reliable 625HSK-A63 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.

625HSK-A63 Specifications
Speed RPM30,00040,00050,000 65,000
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 Weight81.6 oz (2.31 kg)

625HSK-A63 Dimensions
A 0.87” (22mm)
B 2.24” (57mm)
C 6.06” (154mm)
D 7.13” (181mm)

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). Oil-free 90 psi / 6.2 bar, clean, dry air supply required.

Accessories Models Part #
High Flow Filter / Regulator / Extractor 30008
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.

Brother LogoDMG Mori LogoHaas LogoHermle LogoFanuc LogoDoosan LogoGrob LogoHurco Logo
Block and Collar on the Automatic Tool Changer Assembly

Automatically load Air Turbine Spindles® in CNC machines with our patented wrap-around Toolchanger Mounting Assembly (TMA). This option allows CNC tool-changers to automatically load/unload our family of high-speed precision spindles using a proprietary collar system and mounting block or ring around the CNC spindle integrated to the right side of the CNC spindle in minutes.

Mounting blocks or rings compatible with Haas, Hurco, Doosan, Robodrill, Hardinge, DMG, Brother, Okuma, and all other CNC’s are available. We are accustomed to developing custom solutions for any CNC. A Universal Block can be provided for drilling your CNC screw positions. Installation Kits are available. The TMA block remains on the CNC spindle for normal tool changes, even if not using the Air Turbine Spindles™ as it will not interfere when using the main spindle.

ER11- 1/4″ ER11- 6mm
Speed RPM Part # Speed RPM Part #
30,000 64010 30,000 64011
40,000 64012 40,000 64013
50,000 64302 50,000 64303
65,000 65134 65,000 65135

Videos

Steel Milling on Hermle C42U by Air Turbine Spindles® 50,000 rpm, 0.50 hp 625HSK

Aluminum 6085 Slotting at 12,000 mm/min on Hermle

Steel Milling at 5000 mm/min on Hermle C600 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].