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YHJ direct-driven motorized spindle


It is suitable for the matching use of precision machining equipment. High-torque, high-precision integrated motorized spindle, used in CNC grinders, machining centers, milling machines, drilling machines, special machines and other equipment, to provide high-precision, low temperature rise of the best performance, dynamic balance accuracy G0.4.

Category: Product Center
Keywords: Yuhuan

Main Feature

1. The principle of this machine is that the workpiece turntable which is slightly larger than the silicon wafer is used, the workpiece is in the center of the workpiece turntable through the vacuum sucker, and the edge of the grinding wheel is adjusted to the center position of the workpiece, the workpiece and the grinding wheel revolve around their respective axes to make cutting and thinning. The contact length, contact area and cutting angle between the grinding wheel and the work are unchanged, the phenomenon of middle convex and collapse edge can be avoided. Especially for the thinner workpiece performance is more obvious.

2. The main shaft of up and down lapping adopts the structure of air bearing, because there is no friction between the stator and the rotor, the wear degree is reduced to the minimum, so as to ensure that the precision is always stable.

3. The resistance of air bearing is lower, allowing higher speed and keeping lower vibration level at the same time.  

4. The precision and repeatable motion of the air-bearing spindle results in excellent surface luminosity. Because hardness is provided by a constant flow of air through the bearing, the forces exerted on the rotor by external loads are distributed steadily at all points of its rotation. This characteristic is closely related to the good surface luminosity produced during grinding.  

5. The base is made of cast marble, and the Z-axis feed column is made of marble to improve the rigidity and stability of the machine.

Technical Parameter

Project

Parameter

Sp38

Sp50

Sp56

Sp63-C

Motor type

Permanent magnet synchronization

Permanent magnet synchronization

Permanent magnet synchronization

Permanent magnet synchronization

rated power

11.5kW

31kW

30kW

30kW

rated voltage

380V

380V

380V

380V

rated current

37A

60A

60A

65A

rated torque

18N.m

130N.m

84N.m

42N.m

rated speed

7500rpm

2300rpm

3000rpm

6800rpm

maximum speed

10000rpm

3500rpm

4500rpm

8000rpm

bearing

Rolling-element bearing

Rolling-element bearing

Rolling-element bearing

Rolling-element bearing

lubrication

Grease

Grease

Grease

Grease

 cooling

Forced water cooling

Forced water cooling

Forced water cooling

Forced water cooling

installation and connection mode

Vertical side mounting

Vertical side mounting

Horizontal with flange

Vertical with flange

shaft-end interface

ф38(1:7.5)

ф50

ф56(1:7.5)

HSK63-C

end-face runout

≤0.002

≤0.002

≤0.002

≤0.002

radial runout

≤0.002

≤0.002

≤0.002

≤0.002

Use mode

Vertical/tilt

Vertical

Level

Vertical/tilt

sealing mode

Gas Seal

Gas Seal

Gas Seal

Gas Seal

temperature monitoring

KTY+PTC

KTY+PTC

KTY+PTC

KTY+PTC

dynamic balancing machine grade

G0.4

G0.4

G0.4

G0.4

on-line balancing device

Matching

Matching

Matching

Matching