625BT40
625 CNC Spindle Series
The versatile and reliable 625BT40 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 the compact 625 Series. Ideal for mold making, milling, and finishing with small tools up to 1/4” / 6 mm 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.
| 625BT40 Specifications | ||||
| Speed | 30,000 RPM | 40,000 RPM | 50,000 RPM | 65,000 RPM |
| Power Rating | 0.4 HP (0.3 kW) | 0.45 HP (0.34 kW) | 0.5 HP (0.37 kW) | 0.55 HP (0.41 kW) |
| Inlet Air Pressure | 90 psi (6.2 bar) | |||
| Air Consumption Idle | 12 CFM (5.66 L/s) | 14 CFM (6.61 L/s) | 16 CFM (7.55 L/s) | |
| Air Consumption Working Flow | 11 CFM (5.19 L/s) - 20 CFM (9.44 L/s) | |||
| Air Hoses and Fittings Minimum Size | 6 mm internal diameter | |||
| Sound Level | Less Than 78 dBA | |||
| Max Shank Capacity | ER11 UP - 1/4” (6 mm) | |||
| Spindle Weight | 81.6 oz (2.31 kg) | |||
| 625BT40 Specifications |
| Speed |
| Power Rating |
| Inlet Air Pressure |
| Air Consumption Idle |
| Air Consumption Working Flow |
| Air Hoses and Fittings Minimum Size |
| Sound Level |
| Max Shank Capacity |
| Spindle Weight |
| 30,000 RPM | 40,000 RPM | 50,000 RPM | 65,000 RPM |
| 0.4 HP (0.3 kW) | 0.45 HP (0.34 kW) | 0.5 HP (0.37 kW) | 0.55 HP (0.41 kW) |
| 90 psi (6.2 bar) | |||
| 12 CFM (5.66 L/s) | 14 CFM (6.61 L/s) | 16 CFM (7.55 L/s) | |
| 11 CFM (5.19 L/s) - 20 CFM (9.44 L/s) | |||
| 6 mm internal diameter | |||
| Less Than 78 dBA | |||
| ER11 UP - 1/4” (6 mm) | |||
| 81.6 oz (2.31 kg) | |||
Add These High Speed Spindles to Your CNC for 5 X Faster Production
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.
625BT40 Dimensions
All fittings, couplings, and hoses must have a minimum of 6 mm internal diameter.
| 625BT40 Dimensions | |||
| A | 0.87” (22 mm) | C | 6.81” (173 mm) |
| B | 2.24” (57 mm) | D | 9.37” (238 mm) |
| 625BT40 Dimensions | |
| A | 0.87” (22 mm) |
| B | 2.24” (57 mm) |
| C | 6.81” (173 mm) |
| D | 9.37” (238 mm) |
Equipment
Included Equipment
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 Models | Part # |
|---|---|
| High Flow Filter / Regulator / Extractor | 30008 |
| 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 |
Automatically Tool Change on your CNC
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.
Screw In Mounting Block
Two Piece Ring and Block
Drill Tap
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.
TMA Assembly Includes
- Mounting block or ring assembly
- Spindle manifold collar with adjustable height connector to block
Auto Tool Change your Air Turbine Spindle® with the Tool Changer Mounting Assembly
| ER11 UP - 1/4" | ER11 UP - 6 mm | ||
|---|---|---|---|
| Speed RPM | Part # | Speed RPM | Part # |
| 30,000 | 64140 | 30,000 | 64141 |
| 40,000 | 64142 | 40,000 | 64143 |
| 50,000 | 64308 | 50,000 | 64309 |
| 65,000 | 65140 | 65,000 | 65141 |
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 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].
