– High-pressure aerostatic tool spindle with integrated BLDC motor and automatic spring-less HSK-E 32 interface (SLH32) –
UASD-H32/A (front view)
About our “UASD-H32/A” – what to expect
available with axially (A) or radially arranged spindle connectors
Speeds of 80,000 rpm for micromachining
Increased load capacity and rigidity thanks to high-pressure aerostatic technology to allow higher chip removal rates
Only available with a high-pressure aerostatic bearing system ( UASD-H32A) (standard pressure version only on request)
Automatic spring-less HSK-E 32 tool interface according to DIN 69893-5 (SLH32)
Based on our well-known and proven high-pressure aerostatic technology, we have driven forward the development of our UASD-H32/A on the basis of our proven UASD-H25 and UASD-H25A, where only the HSK interface size differs from them. As with all our spindle solutions with HSK interface, our UASD-H32/A also uses our proven, spring-less tool clamping system SLH-x in the size and shape of HSK-E 32 (DIN69893). This means that machine manufacturers who prefer size 32 interface can now also rely on the proven Qualities of our UASD-H25/A.
Not only the usual precision and thermal and dynamic stability the user can rely on, but also on higher chip removal rates thanks to the increased load capacity and rigidity. The integrated permanent magnet synchronous motor (BLDC) is designed in such a way that its limit is just below that of the bearing system, thus ensuring comfortable protection of the bearing system.
Tool interface Automatic spring-less HSK-E 32 tool interface (SLH-32) Housing diameter Ø 100 mm Lenght 408 mm Weight 16 kg max. Speed 0 - 60,000 rpm; 0 - 80,000 rpm Motor options 400 V max., "High-power", 0.7 Nm S1/ 200 V max., "High-power", 0.7 Nm S1 400 V max., "Iron-less", 0.33 Nm S1/ 200 V max., "Iron-less", 0.33 Nm S1 Angular position control 1 VSS SinCos, 80 lines, zero-flag Tool change systen pneumatic, 3bit clamping status monitoring, taper cleaning air Spindle cooling Thin-film liquid cooling Bearing system Aerostatic (ASD-H32/A), 6 - 10 bar *) High-pressure aerostatic (UASD-H32/A), 20 - 30 bar Accuracy, Dynamics Dynamic tool run-out < 0.8 micron **) Shaft Error in motion < 35 nm Spindle connectors UASD-H32A: axially outgoing UASD-H32: radially outgoing *) only with approval / **) when using UTS-32 tool holder series
The patented high-pressure aerostatic bearing system of our UASD models is designed to operate with an air supply pressure of 20-30 bar. It provides a load capacity at the spindle nose – verified in customer tests – that is 200% higher than our standard bearings operated at 6 bar.
Note: To operate any high-pressure model (
UASD-x), you may require a different air compressor or an additional pressure booster and – more importantly – an air dryer that provides a dew point of 3°C at the supply pressure
(20-30 bar)
| Aerostatic Bearing | High-pressure Aerostatic Bearing | ||
| Tool interface | ASD060H32A | UASD060H32A **) | |
| Bearing air supply pressure | [bar] | 6-10 | 0 - 60,000 |
| Available speed | [rpm] | 330 | 650 |
| Radial load capacity at the spindle nose | [N] | 41 | 60 |
| Axial load capacity at the spindle nose | [N] | 50 | < 0.4 |
| Static radial zero point stiffness at the spindle nose | [N/ µm] | < 23 | 6-10 |
| Static axial zero point stiffness at the spindle nose | [N/ µm] | 330 | 41 |
| Static air consumption | [NI/ min] | 50 | < 23 |
| Dynamic tool run-out ***) | [µm] | 330 | 50 |
| Shaft Error in motion ***) | [nm] | 330 | 330 |
| **) all values at 20 bar bearing feed pressure (gauge pressure)/ ***) when using the UTS-32 tool holder series |
UASD-H32/A (rear view)
Available and well-proven housing options:
Using thermal shrinking, any bespoke housing can be supplied to you by mounting flange units onto the cylindrical standard steel-housing. These flange units can provide tapped bores, axial shoulders or radial guide diameters to
mount the spindle into your vertical or horizontal machining setup.
Let us know your design envelope, and we will design and provide the right flange unit for you.
Your contact
If you have any questions, need further information or would like to purchase one of our products, please contact us at any time!
