Manufacturer: Fukudaco

Overview

Combining a minimal air gap and a wide bearing area results in high-speed rotation, high rotational accuracy, and high rigidity.

Applications

• Micromachining tool spindles (for optical components, LEDs, lighting, and precision molds)
• Precision machining worked

Features

• High-speed rotation
• Excellent rotational accuracy
• Superior stability
• High rigidity

Achieve Ultra-High Precision Machining Unattainable with Rolling Bearings

We deliver high-precision air-bearing spindles with rigidity equal to or greater than conventional rolling-bearing spindles. This is made possible through our proprietary hydrostatic air-bearing technology, various analytical methods utilizing Computational Fluid Dynamics (CFD), and Finite Element Analysis (FEA). These methods and our patented in-house developments enable us to achieve ultra-high precision machining.

Tool spindle

HSK-E20

(U)ASDxxxH20A

Main basic specifications:

Available options

Specification comparison based on supply pressure and maximum rotation speed

	Standard pressure (0.6 to 1.0 MPa) ASD-H20A		High pressure (2.0 to 3.0 MPa) UASD-H20A
Maximum rotation speed (min -1 )	120,000	150,000	120,000	150,000
Output (kW) High torque motor	2.5	2.8	2.5	2.8
Output (kW) High-precision motor	1.6	1.9	1.6	1.9
Radial load capacity (N)	160 to 200	190	280～310	580
Axial load capacity (N)	240	230	650	630
Radial stiffness (N/μm)	16	20	24	38
Axial rigidity (N/μm)	21	25	30	45

HSK-E25

(U)ASDxxxH25A

(U)ASDxxxH25

Main basic specifications:

Model	(U)ASDxxxH25, (U)ASDxxxH25A
Tool Interface	HSK-E25
Tool change	Automatic, air supply
Housing Body Diameter	φ100 mm
Motor Type	Brushless DC Motor
encoder	1 Vss SinCos
Static taper runout accuracy	< 0.1 μm
Shaft Error Motion	< 30 nm
Main Applications	Cutting, internal grinding, drilling

Available options

Air Bearing Supply Pressure	・Standard pressure (0.6 to 1.0 MPa) ・High pressure (2.0 to 3.0 MPa)
Connector/joint position	・Radial direction ・Axial direction (rear of the spindle)
Maximum RPM	・60,000 min -1 ・80,000 min- 1 ・90,000 min -1
Motor Specifications	・208 V, high torque (0.7 Nm) ・400 V, high torque (0.7 Nm) ・208 V, high precision slotless (0.33 Nm) ・400 V, high precision slotless (0.33 Nm)

Specification comparison based on supply pressure and maximum rotation speed

	Standard pressure (0.6 to 1.0 MPa) ASD-H25, ASD-H25A			High pressure (2.0 to 3.0 MPa) UASD-H25, UASD-H25A
Maximum rotation speed (min -1 )	60,000	80,000	90,000	60,000	80,000	90,000
Output (kW) High torque motor	4.7	5.3	4.8	4.7	5.3	4.8
Output (kW) High-precision motor	1.9	2.5	2.8	1.9	2.5	2.8
Radial load capacity (N)	300	260	220	900	800	750
Axial load capacity (N)	550	500	450	1,300	1,250	1,200
Radial stiffness (N/μm)	40	25	20	70	50	35
Axial rigidity (N/μm)	65	45	35	150	120	80

HSK-E32

Main basic specifications:

Model	UASD060H32, UASD060H32A
Tool Interface	HSK-E32
Tool change	Automatic, air supply
Housing Body Diameter	φ100 mm
Motor Type	Brushless DC Motor
Maximum RPM	60,000 min -1
output	4.2 kW
torque	0.7 Nm
encoder	1 Vss SinCos
Static taper runout accuracy	< 0.1 μm
Shaft Error Motion	< 30 nm
Air Bearing Supply Pressure	2.0 to 3.0 MPa
Radial Load Capacity	900 N
Axial load capacity	1,300 N
Radial Stiffness	70 N/μm
Axial rigidity	150 N/μm
Main Applications	Cutting, internal grinding, drilling

Available options

Connector/joint position	・Radial direction ・Axial direction (rear of the spindle)
Motor Specifications	・208 V, high torque (0.7 Nm) ・400 V, high torque (0.7 Nm)

HSK-E40

Main basic specifications:

Model	UASD-H40
Tool Interface	HSK-E40
Tool change	Automatic, air supply
Housing Body Diameter	φ120 mm
Motor Type	Brushless DC Motor
Maximum RPM	60,000 min -1
output	4.2 kW
torque	0.7 Nm
encoder	1 Vss SinCos
Static taper runout accuracy	< 0.1 μm
Shaft Error Motion	< 30 nm
Air Bearing Supply Pressure	4.0 to 6.0 MPa
Main Applications	Cutting, internal grinding, drilling

Collet type

Main basic specifications:

Model	ASDxxxCx, UASDxxxCx
Tool Interface	Collet type (φ3mm, 4mm, 6mm, 1/8″, 1/4″)
Tool change	Automatic, air supply
Housing Body Diameter	φ100 mm
Motor Type	Brushless DC Motor
encoder	1 Vss SinCos
Static taper runout accuracy	< 0.1 μm
Shaft Error Motion	< 30 nm
Main Applications	Cutting, internal grinding, drilling

Available options

Air Bearing Supply Pressure	・Standard pressure (0.6 to 1.0 MPa) ・High pressure (2.0 to 3.0 MPa)
Maximum RPM	・60,000 min -1 ・80,000 min- 1 ・100,000 min -1
Motor Specifications	・208 V, high torque (0.7 Nm) ・400 V, high torque (0.7 Nm) ・208 V, high precision slotless (0.33 Nm) ・400 V, high precision slotless (0.33 Nm)

HSK-C63

Main basic specifications:

Model	ASD-PH63M
Tool Interface	HSK-C63
Tool change	Manual
Housing Body Diameter	φ175 mm
Motor Type	Brushless DC Motor
Maximum RPM	10,000 min -1
Static taper runout accuracy	< 0.1 μm
Shaft Error Motion	< 15 nm
Air Bearing Supply Pressure	0.6 to 1.0 MPa
Radial Load Capacity	1,800 N
Axial load capacity	2,500 N
Radial Stiffness	180 N/μm
Axial rigidity	250 N/μm
Main Applications	Cutting, internal grinding, external grinding

Available options

Motor Specifications	・400 V, high torque (13.5 Nm) ・400 V, high precision (6.5 Nm)
Encoder (Axial Mode)	Standard: Optical, Incremental (1 Vss Sin/Cos, 11840) Optional: Absolute , BISS-C (18/26/32-bit) , Mitsubishi-2/4 (23/27-bit) , Fanuc (23/27-bit) , Drive-CliQ (26/29-bit)
Encoder (Spindle Mode)	GMR sensor, increment (1 Vss Sin/Cos, 253) *Not available if absolute encoder in axis mode is selected

Work head spindle

Main basic specifications:

Model	ASD-Px
Tip Shape	Flat end surface φ120mm
Housing Body Diameter	φ175 mm
Motor Type	Brushless DC Motor
Maximum RPM	10,000 min -1
Static taper runout accuracy	< 0.1 μm
Shaft Error Motion	< 15 nm
Air Bearing Supply Pressure	0.6 to 1.0 MPa
Radial Load Capacity	1,800 N
Axial load capacity	2,500 N
Radial Stiffness	180 N/μm
Axial rigidity	250 N/μm
Main Applications	Work heads, turning, shafts, fluctuating

Available options

Tip Shape	Standard: Flat end face φ120mm Option : Vacuum chuck (φ150-200mm) HSK-C63 (spindle model number is ASD-PH63M)
Motor Specifications	・400 V, high torque (13.5 Nm) ・400 V, high precision (6.5 Nm)
encoder	Standard: Optical, Incremental (1 Vss Sin/Cos, 11840) Optional: Absolute , BISS-C (18/26/32-bit) , Mitsubishi-2/4 (23/27-bit) , Fanuc (23/27-bit) , Drive-CliQ (26/29-bit)
Encoder (Spindle Mode)	GMR sensor, increment (1 Vss Sin/Cos, 253) *Not available if absolute encoder in axis mode is selected

Ultra-precision HSK tool holder

To maximize the capabilities of Levicron’s ultra-precise HSK spindles, the tool holders must be as ultra-precise and highly balanced as the spindles. This is because ordinary tool holders available on the market cannot achieve nano-level precision. Levicron has
developed ultra-precise shrink-fit tool holders through special manufacturing and balancing processes. By combining these tool holders with Levicron’s HSK spindles, you can obtain the following characteristics:

Tool Interface	HSK-E (DIN 69893-E) 25, 32, 40
Tool fixing method	Shrink fitting
Shank diameter (mm)	8mm, 6mm, 4mm, 3mm (3mm is HSK-E25, -E32 only)
Shank diameter (inch)	1/4″, 1/8″ (HSK-E25 only)
Static runout accuracy	< 0.8 μm
Balance Grade	G0.3 mm/s＠60,000 min -1
Repeatability (axial, radial)	< 0.2 μm