– (High-pressure) aerostatic tool spindle with integrated BLDC motor and automatic spring-less HSK-E 20 interface (SLH20) –
U/ASD-H20A (front view)
About our “ASD-H20A/ UASD-H20A” – what to expect
with axially (A) arranged spindle connectors
Speeds of up to 150,000 rpm with outstanding dynamic and thermal stability
Particularly designed and developed for the production of integral semiconductor- and optoelectronic components
Also available with a high-pressure aerostatic bearing system (UASD-H20A)
Automatic spring-less HSK-E 20 tool interface according to DIN 69893-5 (SLH20)
Our U/ASD-H20A tool spindle combines the highest speeds, precision, stability, and automation. It was specifically developed to meet the long-awaited requirements on motor spindles to machine integral semiconductor and optoelectronic components, significantly boosting performance and efficiency. Like our models „ U/ASD-H25/A“ and „ UASD-H32/A“, it is also available with our high-pressure aerostatic technology ( UASD-H20A), which increases triples the load capacity and robustness, especially at low speeds and if used with larger tools.
By using our spring-less, patented HSK clamping system SLH-x in size HSK-E 20, consistent optimization of the shaft dynamics, and highly efficient and symmetrical thin-film liquid cooling, our U/ASD-H20A offers an exceptional dynamic and thermal stability compared to other solutions. In addition, it enables dynamic machining of micro and integral electronic components (electronic packaging).
Tool interface Automatic spring-less HSK-E 20 tool interface (SLH-20) Housing diameter 80 mm Available speeds 0 - 120,000 rpm; 0 - 150,00 rpm Lenght 335 mm Weight 8.1 kg Motor options 400 V max., "High performance", 0.22 Nm S1 (Option) 200 V max., "High performance", 0.22 Nm S1/ 200 V max., "Iron-less", 0.13 Nm S1 Angular position control 1 VSS SinCos, 60 lines, zero-flag Tool change system Pneumatic; 3 bit tool clamp status monitoring; cone cleaning air Spindle cooling Thin-film liquid cooling Bearing system Aerostatic (ASD-H20A); 6-10 bar High-pressure Aerostatic (UASD-H32/A), 20-30 bar Accuracy, Dynamics Dynamic tool run-out < 1 µm *) Shaft Error in motion < 40/ 45 nm Axial shaft growth < 1 µm; < 3 minutes **) Spindel connections Axially outgoing (Dmax 80 mm) *) if used with UTS-20 tool holders series **) from cold/ standstill to 120,000 rpm warmed through
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 ASD120H20A UASD120H20A *) Bearing air supply pressure [bar] 6-10 20-30 Available Speed [rpm] 0 - 120,000 0 - 120,000 Radial load capacity at the spindle nose [N] 190 580 Axial load capacity at the spindle nose [N] 240 650 Static radial zero point stiffness at the spindle nose [N/µm] 20 38 Static axial zero point stiffness at the spindle nose [N/µm] 25 45 Static air consumption [Nl/min] 40 73 Dynamic tool run-out **) [µm] < 1 < 1 Shaft Error in motion **) [nm] < 40 < 45 *) all values are taken at 20 bar bearing air supply pressure / **) if used with UTS-20 tool holder series
U/ASD-H20A (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
Do you have any questions, need further information or want to purchase one of our products? Great! Then contact us at any time.
